{"id":3583,"date":"2019-05-13T11:02:30","date_gmt":"2019-05-13T18:02:30","guid":{"rendered":"http:\/\/saveredwoods.wpengine.com\/?page_id=3583"},"modified":"2022-07-27T18:13:39","modified_gmt":"2022-07-28T01:13:39","slug":"rcci-forest-network","status":"publish","type":"page","link":"https:\/\/www.savetheredwoods.org\/what-we-do\/our-work\/study\/understanding-climate-change\/rcci-forest-network\/","title":{"rendered":"RCCI Forest Network"},"content":{"rendered":"\n<p class=\"lead\">Save the Redwoods League and Humboldt State University lead the Redwoods and Climate Change Initiative (RCCI), a collaborative research program launched in 2009 to study past, present, and future impacts of climate change on coast redwood and giant sequoia forests.<\/p>\n<p><strong>The results can guide Save the Redwoods League and other forest stewards conserving redwood forests.<\/strong><\/p>\n<p>Beginning in 2009, researchers installed 16 long-term forest monitoring plots in old-growth coast redwood and giant sequoia forests to better understand how forests change through time. Each tree was measured and mapped in these 1-hectare (~2.47 acres) sized plots, and they have all been visited annually to document mortality and new trees. Every five years, the plots are fully re-measured. Over time, this helps us better understand the demographics of the forest, and can be a place to watch for early warnings signs of threats and stressors to the forest. It is also important for understanding biodiversity and carbon storage.<\/p>\n<p>At each of these sites, researchers climbed and mapped five individual old-growth trees to better understand tree structure and growth rates, as well as forest carbon storage.<\/p>\n<p>Over time, we realized that although the old-growth forests are critically important, we need to develop a better understanding of the younger, recovering forests that make up 95% of the coast redwood range. We also needed to understand how climate change might be differentially affecting forests on the edge of the range \u2013 far inland or to the south. So in 2018 we added two additional 1-hectare, long-term monitoring plots, and identified sites to climb trees in at least 20 new forests, spread throughout old and young, coastal and inland, and northern and southern redwood forests across California.<\/p>\n<hr \/>\n<h2><a id=\"results\" name=\"results\"><\/a>Results to date<\/h2>\n<ul>\n<li>Ancient coast redwood forests store more carbon above ground than any other forests on Earth, with giant sequoia coming in as a close second.<\/li>\n<li>Scientists observed significant growth increase in the latter half of the 20th century in many old-growth coast redwoods and giant sequoias, even during the 2012-2016 drought.<\/li>\n<li>Second-growth coast redwood forests can <strong><a href=\"https:\/\/www.savetheredwoods.org\/redwoods-magazine\/spring-2019\/discovering-the-climate-change-resilience-of-coast-redwood-forests\/\">accumulate<\/a><\/strong> about a third as much aboveground biomass as comparable old-growth forests in roughly 150 years.<\/li>\n<\/ul>\n<h3>Growth rates<\/h3>\n<p>One surprising finding is that some old-growth redwoods have grown more since the 1970s than they ever have, even during the 2012-2016 drought. One hypothesis for these growth rates is that rising temperatures are lengthening the growing season. Another factor may be more carbon dioxide in the air. In the coast range, decreasing fog may provide the trees more access to sunlight.<\/p>\n<p>However, some forests at the extreme edges of the coast redwood range did show reduced growth rates during drought, which may be due to increased competition for resources, since regenerating forests are often denser. Second-growth forests did not see the same growth surge that old-growth forests did in the latter half of the 20th century, perhaps for the same reason, though more research is needed to better understand these forest dynamics.<\/p>\n<h3>Exceptional carbon storage capacity<\/h3>\n<p>One of the critical discoveries by our leading scientists is that ancient redwood forests store more carbon above ground than any other type of forest.<\/p>\n<p>\u201cAs trees grow, they pull carbon out of the atmosphere and store it in their trunks and branches. Redwoods are uniquely suited to this task, storing more carbon per acre than any other forest type. Their wood is also highly rot resistant, which means this carbon will stay locked up for a very long time,\u201d said Kristen Shive, the League\u2019s Director of Science. \u201cThis is just another way in which these trees add value to our world.\u201d<\/p>\n<p>Your generous support helped to make this research possible and <a href=\"https:\/\/secure.savetheredwoods.org\/a\/donate?source=srlweb-200%20C%2024-25\"><strong>funds are still needed<\/strong><\/a> to continue this critical work. The more we know about the redwoods, the better we can look after them. We look forward to learning and sharing much more through the important work of the RCCI program.<\/p>\n<hr \/>\n<h2>Announcements<\/h2>\n<div class=\"row\">\n<div class=\"col-sm-3\"><a title=\"ANNOUNCEMENT: Research Confirms Significant Role of Redwood Forests in California's Climate Fight\" href=\"https:\/\/www.savetheredwoods.org\/press-releases\/research-confirms-significant-role-of-redwood-forests-in-californias-climate-fight\/\"><img decoding=\"async\" width=\"300\" height=\"270\" class=\"img-responsive alignnone wp-image-40070 size-medium\" src=\"\/\/www.savetheredwoods.org\/wp-content\/uploads\/rnp-alluvial-jim-bob-mapping-web-300x270.jpg\" alt=\"Scientists of the Redwoods and Climate Change Initiative study the coast redwood canopy in Redwood National and State Parks. Photo by Stephen C. Sillett\" \/><\/a><\/div>\n<div class=\"col-sm-9\">\n<h3><a title=\"ANNOUNCEMENT: Research Confirms Significant Role of Redwood Forests in California's Climate Fight\" href=\"https:\/\/www.savetheredwoods.org\/press-releases\/research-confirms-significant-role-of-redwood-forests-in-californias-climate-fight\/\">Research from Save the Redwoods League and Humboldt State University Confirms Significant Role of Redwood Forests in California&#8217;s Climate Fight<\/a><\/h3>\n<p>Recent findings bolster more than 10 years of research, confirming massive carbon storage in old-growth redwood forests and potential of younger, previously logged forests.<\/p>\n<\/div>\n<\/div>\n<hr \/>\n<h2>Research Plot Photo Tours<\/h2>\n<h3 style=\"text-align: left;\">Jedediah Smith Redwoods State Park<\/h3>\n<p style=\"text-align: left;\"><strong>Upslope Plot<\/strong><br \/>\n<div id=\"su_carousel_69d9bf7a8932f\" class=\"su-carousel su-carousel-centered su-carousel-pages-no su-carousel-responsive-yes su-lightbox-gallery\" style=\"width:100%\" data-autoplay=\"3000\" data-speed=\"600\" data-mousewheel=\"true\" data-items=\"5\" data-scroll=\"1\"><div class=\"su-carousel-slides\"><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_SESE-vs-Pinaceae_web1.jpg\" title=\"Giant redwood crowns loom over a canopy of shorter trees such as Sitka Spruce (Picea sitchensis) and Western Hemlock (Tsuga heterophylla). Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_SESE-vs-Pinaceae_web1.jpg\" alt=\"Giant redwood crowns loom over a canopy of shorter trees such as Sitka Spruce (Picea sitchensis) and Western Hemlock (Tsuga heterophylla). Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_fromT1678towardT1531_web.jpg\" title=\"In the rain forest of Jedediah Smith, single redwood treetops (called crowns) can be incredibly dense with many trunks, many branches, and leaves. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_fromT1678towardT1531_web.jpg\" alt=\"In the rain forest of Jedediah Smith, single redwood treetops (called crowns) can be incredibly dense with many trunks, many branches, and leaves. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_T1531-lookingup-mid-crown_web.jpg\" title=\"The limbs of redwoods inspire and bewilder tiny humans.  High above the ground, several giant branches arch upwards toward the treetop, supported by thick ribbon buttresses and giving rise to dozen of new redwood trunks. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_T1531-lookingup-mid-crown_web.jpg\" alt=\"The limbs of redwoods inspire and bewilder tiny humans.  High above the ground, several giant branches arch upwards toward the treetop, supported by thick ribbon buttresses and giving rise to dozen of new redwood trunks. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_T1531-lookingup-upper-crown_web.jpg\" title=\"In the treetop of this redwood, thickets of shrubs gush from decaying wood, filling the inner crown of this giant tree with flowering plants.  Powerful storms have beaten this ridge top tree&#8217;s crown over the centuries, providing many opportunities for colonization of damaged wood by decay fungi, epiphytes, and wildlife. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_T1531-lookingup-upper-crown_web.jpg\" alt=\"In the treetop of this redwood, thickets of shrubs gush from decaying wood, filling the inner crown of this giant tree with flowering plants.  Powerful storms have beaten this ridge top tree&#8217;s crown over the centuries, providing many opportunities for colonization of damaged wood by decay fungi, epiphytes, and wildlife. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_T1531-mid-crown-VAOV-profusion_web.jpg\" title=\"Epiphytic huckleberries such as this Vaccinium ovatum growing 75 m above the ground have access to abundant light and plentiful water inside cavities of slowly decaying heartwood.  The number of berries in this tree is immense and lures many animals to the treetop to feast. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_T1531-mid-crown-VAOV-profusion_web.jpg\" alt=\"Epiphytic huckleberries such as this Vaccinium ovatum growing 75 m above the ground have access to abundant light and plentiful water inside cavities of slowly decaying heartwood.  The number of berries in this tree is immense and lures many animals to the treetop to feast. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_epiphyticChrysolepischrysophylla_web1.jpg\" title=\"A small chinkapin tree grows as an epiphyte 65 m high in the crown of a tall redwood and yet there are no chinkapins growing within several kilometers of this particular tree. We suspect a band-tailed pigeon carried the chestnut-like fruit of this species from afar. Photo by Stephen Sillett, Institute for Redwood Ecology, Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_epiphyticChrysolepischrysophylla_web1.jpg\" alt=\"A small chinkapin tree grows as an epiphyte 65 m high in the crown of a tall redwood and yet there are no chinkapins growing within several kilometers of this particular tree. We suspect a band-tailed pigeon carried the chestnut-like fruit of this species from afar. Photo by Stephen Sillett, Institute for Redwood Ecology, Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_T1531lower-crownlimb-with-POSC_web.jpg\" title=\"The crown of this redwood is among the most impressive we have found.  The tree stands on a ridge and has huge limbs radiating in all directions, many limbs are more than 1 m thick and some are more than 2 m thick.  This limb in the lower crown is draped with lush Polypodium scouleri ferns. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-upslope_T1531lower-crownlimb-with-POSC_web.jpg\" alt=\"The crown of this redwood is among the most impressive we have found.  The tree stands on a ridge and has huge limbs radiating in all directions, many limbs are more than 1 m thick and some are more than 2 m thick.  This limb in the lower crown is draped with lush Polypodium scouleri ferns. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><\/div><div class=\"su-carousel-nav\"><div class=\"su-carousel-direction\"><span class=\"su-carousel-prev\"><\/span><span class=\"su-carousel-next\"><\/span><\/div><div class=\"su-carousel-pagination\"><\/div><\/div><\/div><\/p>\n<p style=\"text-align: left;\"><strong>Lowland Plot<\/strong><\/p>\n<div id=\"su_carousel_69d9bf7bc4de9\" class=\"su-carousel su-carousel-centered su-carousel-pages-no su-carousel-responsive-yes su-lightbox-gallery\" style=\"width:100%\" data-autoplay=\"3000\" data-speed=\"600\" data-mousewheel=\"true\" data-items=\"5\" data-scroll=\"1\"><div class=\"su-carousel-slides\"><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-anthony-near-treetop_web.jpg\" title=\"Researcher Anthony Ambrose perches near the top of a young, 282\u2010foot\u2010tall tree. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-anthony-near-treetop_web.jpg\" alt=\"Researcher Anthony Ambrose perches near the top of a young, 282\u2010foot\u2010tall tree. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-canopyview-foggy3_web.jpg\" title=\"Fog and rain help these tall trees to grow to amazing heights. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-canopyview-foggy3_web.jpg\" alt=\"Fog and rain help these tall trees to grow to amazing heights. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-looking-down-boles_web.jpg\" title=\"From the top of the upper redwood canopy looking down. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-looking-down-boles_web.jpg\" alt=\"From the top of the upper redwood canopy looking down. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-salamander_web.jpg\" title=\"The wandering salamander, Aneides vagrans, is a top predator of old-growth forest canopies throughout Redwood National and State Parks. Expanded toe pads and prehensile tails allow these salamanders to fully explore the canopy all the way to the treetops. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-salamander_web.jpg\" alt=\"The wandering salamander, Aneides vagrans, is a top predator of old-growth forest canopies throughout Redwood National and State Parks. Expanded toe pads and prehensile tails allow these salamanders to fully explore the canopy all the way to the treetops. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-canopy-mushrooms-on-moss_web.jpg\" title=\"In this redwood rain forest, the moss Isothecium forms a mat on a small branch with mushrooms. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-canopy-mushrooms-on-moss_web.jpg\" alt=\"In this redwood rain forest, the moss Isothecium forms a mat on a small branch with mushrooms. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-climber-in-tree-backlit_web.jpg\" title=\"The inner crowns of redwood trees can be very dark places with sunlight reaching only the outer branches. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-climber-in-tree-backlit_web.jpg\" alt=\"The inner crowns of redwood trees can be very dark places with sunlight reaching only the outer branches. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-cool-sunbeams_web.jpg\" title=\"Winter light streams through the old\u2010growth forest canopy, highlighting abundant moisture in the air. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-cool-sunbeams_web.jpg\" alt=\"Winter light streams through the old\u2010growth forest canopy, highlighting abundant moisture in the air. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-fernmat-pogl_web.jpg\" title=\"Epiphytic ferns, such as this Polypodium glycyrrhiza, are a common inhabitant of old\u2010growth redwood rain forest canopies and grow on top of the tree branches. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-fernmat-pogl_web.jpg\" alt=\"Epiphytic ferns, such as this Polypodium glycyrrhiza, are a common inhabitant of old\u2010growth redwood rain forest canopies and grow on top of the tree branches. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-fernmat-posc_web.jpg\" title=\"The evergreen fern Polypodium scouleri growns in thick mats high above the ground. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-fernmat-posc_web.jpg\" alt=\"The evergreen fern Polypodium scouleri growns in thick mats high above the ground. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-looking-down-multiple-reiterations_web.jpg\" title=\"The upper portion of this tree\u2019s trunk was heavily damaged long ago and now has multiple trunks creating a broad, thriving crown. Old redwoods respond to damage from fire, wind, and falling neighbors by producing reiterated trunks such as these pictured that rebuild crowns.  Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-looking-down-multiple-reiterations_web.jpg\" alt=\"The upper portion of this tree\u2019s trunk was heavily damaged long ago and now has multiple trunks creating a broad, thriving crown. Old redwoods respond to damage from fire, wind, and falling neighbors by producing reiterated trunks such as these pictured that rebuild crowns.  Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-canopyview-with-fog-patch_web.jpg\" title=\"A puff of cloud floats above the redwood canopy. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_js-lowland-canopyview-with-fog-patch_web.jpg\" alt=\"A puff of cloud floats above the redwood canopy. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><\/div><div class=\"su-carousel-nav\"><div class=\"su-carousel-direction\"><span class=\"su-carousel-prev\"><\/span><span class=\"su-carousel-next\"><\/span><\/div><div class=\"su-carousel-pagination\"><\/div><\/div><\/div>\n<hr \/>\n<h3>Redwood National Park<\/h3>\n<p><strong>Upslope Plot<\/strong><br \/>\n<div id=\"su_carousel_69d9bf7dac1a3\" class=\"su-carousel su-carousel-centered su-carousel-pages-yes su-carousel-responsive-yes su-lightbox-gallery\" style=\"width:100%\" data-autoplay=\"3000\" data-speed=\"600\" data-mousewheel=\"true\" data-items=\"5\" data-scroll=\"1\"><div class=\"su-carousel-slides\"><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-climber-rappelling4_web.jpg\" title=\"A climbing researcher descends from the crown of a nearly 370\u2010foot\u2010tall tree. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-climber-rappelling4_web.jpg\" alt=\"A climbing researcher descends from the crown of a nearly 370\u2010foot\u2010tall tree. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-canopyview-foggy2_web.jpg\" title=\"The view of this old\u2010growth forest canopy in Redwood National Park reveals many dead\u2010topped trees likely burned by a forest fire long ago. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-canopyview-foggy2_web.jpg\" alt=\"The view of this old\u2010growth forest canopy in Redwood National Park reveals many dead\u2010topped trees likely burned by a forest fire long ago. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-canopyview-with-snag2_web.jpg\" title=\"Dead trees such as this standing snag provides important habitat for many redwood forest animals. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-canopyview-with-snag2_web.jpg\" alt=\"Dead trees such as this standing snag provides important habitat for many redwood forest animals. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-t901-murrelet-nest3_web.jpg\" title=\"The marbled murrelet is an endangered seabird that nests exclusively in old-growth forest canopies. We found this nest at the base of two large branches 306 feet above the ground in a nearly 370-foot-tall redwood. The nest is really nothing more than a ring of feces deposited by the chick before it flew to the ocean in search of fish! Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-t901-murrelet-nest3_web.jpg\" alt=\"The marbled murrelet is an endangered seabird that nests exclusively in old-growth forest canopies. We found this nest at the base of two large branches 306 feet above the ground in a nearly 370-foot-tall redwood. The nest is really nothing more than a ring of feces deposited by the chick before it flew to the ocean in search of fish! Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-rhodie-epiphyte-close_web.jpg\" title=\"Many species of plants can grow in the crowns of tall redwoods, including this rhododendron growing from a decaying upper trunk 330 feet above the ground. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-rhodie-epiphyte-close_web.jpg\" alt=\"Many species of plants can grow in the crowns of tall redwoods, including this rhododendron growing from a decaying upper trunk 330 feet above the ground. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-bob-and-lush-grove_web.jpg\" title=\"Bob Van Pelt stands amidst lush ferns in a spectacular old-growth forest, surveying the vegetation. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-bob-and-lush-grove_web.jpg\" alt=\"Bob Van Pelt stands amidst lush ferns in a spectacular old-growth forest, surveying the vegetation. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-bolezone-cool-reiteration_web.jpg\" title=\"The lower crowns of tall redwoods are often sparsely branched, but the redwood on the left has a well\u2010developed limb giving rise to a perfect reiterated trunk. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-bolezone-cool-reiteration_web.jpg\" alt=\"The lower crowns of tall redwoods are often sparsely branched, but the redwood on the left has a well\u2010developed limb giving rise to a perfect reiterated trunk. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-looking-down-boles3_web.jpg\" title=\"The view from the redwood canopy down to the forest floor covered with ferns. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-looking-down-boles3_web.jpg\" alt=\"The view from the redwood canopy down to the forest floor covered with ferns. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-looking-up-t901_web.jpg\" title=\"The blue and yellow rope tethers climbing scientists to the tree for an ascent to the 370-foot tall top. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-looking-up-t901_web.jpg\" alt=\"The blue and yellow rope tethers climbing scientists to the tree for an ascent to the 370-foot tall top. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-midcanopyview-cool-light_web.jpg\" title=\"Light is always changing in the redwood forest canopy with portions of tree crowns well illuminated while others are shaded, even in the upper canopy. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-midcanopyview-cool-light_web.jpg\" alt=\"Light is always changing in the redwood forest canopy with portions of tree crowns well illuminated while others are shaded, even in the upper canopy. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-gnarly-crown-fern-mats_web.jpg\" title=\"The structural complexity of redwoods increases with age and provides habitat for leatherleaf fern (Polypodium scouleri) high above the ground.  Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-gnarly-crown-fern-mats_web.jpg\" alt=\"The structural complexity of redwoods increases with age and provides habitat for leatherleaf fern (Polypodium scouleri) high above the ground.  Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-t901-gnarl2_web.jpg\" title=\"Tall redwoods often have complex crowns containing reiterated trunks, burls, and fusions. This reiterated trunk in the mid-crown of a nearly 370-foot-tall redwood has fused with a burl above it, creating a jughandle. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-upslope-t901-gnarl2_web.jpg\" alt=\"Tall redwoods often have complex crowns containing reiterated trunks, burls, and fusions. This reiterated trunk in the mid-crown of a nearly 370-foot-tall redwood has fused with a burl above it, creating a jughandle. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><\/div><div class=\"su-carousel-nav\"><div class=\"su-carousel-direction\"><span class=\"su-carousel-prev\"><\/span><span class=\"su-carousel-next\"><\/span><\/div><div class=\"su-carousel-pagination\"><\/div><\/div><\/div><br \/>\n<strong>Alluvial Plot<\/strong><br \/>\n<div id=\"su_carousel_69d9bf7fb3a24\" class=\"su-carousel su-carousel-centered su-carousel-pages-yes su-carousel-responsive-yes su-lightbox-gallery\" style=\"width:100%\" data-autoplay=\"3000\" data-speed=\"600\" data-mousewheel=\"true\" data-items=\"5\" data-scroll=\"1\"><div class=\"su-carousel-slides\"><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-canopyview4_web.jpg\" title=\"Weather changes quickly in the redwood forest, often alternating between sun and thick fog. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-canopyview4_web.jpg\" alt=\"Weather changes quickly in the redwood forest, often alternating between sun and thick fog. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-cone-laden-treetop2_web.jpg\" title=\"Sequoia sempervirens produces seeds in small cones that are dispersed by the wind. Good seed crops, such as on this 346\u2010foot\u2010tall tree in Redwood National Park (2009), occur sporadically every decade or so in the northern portion of its range. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-cone-laden-treetop2_web.jpg\" alt=\"Sequoia sempervirens produces seeds in small cones that are dispersed by the wind. Good seed crops, such as on this 346\u2010foot\u2010tall tree in Redwood National Park (2009), occur sporadically every decade or so in the northern portion of its range. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-giacomo-mapping_web.jpg\" title=\"Tall redwoods frequently have long branches dangling from their middle and lower crowns, such as this branch being measured for size by Giacomo Renzullo. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-giacomo-mapping_web.jpg\" alt=\"Tall redwoods frequently have long branches dangling from their middle and lower crowns, such as this branch being measured for size by Giacomo Renzullo. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-giacomo-marie-mapping_web.jpg\" title=\"Crown mapping tall redwoods requires teams of scientists working together over several days. Here Giacomo Renzullo (left) and Marie Antoine (right) pause to admire the mighty crown of a 356\u2010foot\u2010tall tree. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-giacomo-marie-mapping_web.jpg\" alt=\"Crown mapping tall redwoods requires teams of scientists working together over several days. Here Giacomo Renzullo (left) and Marie Antoine (right) pause to admire the mighty crown of a 356\u2010foot\u2010tall tree. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-jim-bob-mapping_web.jpg\" title=\"Crown\u2010mapping involves measurements of heights, diameters, distances, and azimuths of all branches. Here Jim Spickler (left) extends a steel tape to measure the horizontal extension of a dead branch while Bob Van Pelt (right) records the measurement. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-jim-bob-mapping_web.jpg\" alt=\"Crown\u2010mapping involves measurements of heights, diameters, distances, and azimuths of all branches. Here Jim Spickler (left) extends a steel tape to measure the horizontal extension of a dead branch while Bob Van Pelt (right) records the measurement. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-steve-anthony-coring_web.jpg\" title=\"We collect wood cores to measure the tree age and growth history recorded in tree rings. Here Steve Sillett (left) and Anthony Ambrose (right) core the lower trunk of a 155\u2010year\u2010old redwood. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-steve-anthony-coring_web.jpg\" alt=\"We collect wood cores to measure the tree age and growth history recorded in tree rings. Here Steve Sillett (left) and Anthony Ambrose (right) core the lower trunk of a 155\u2010year\u2010old redwood. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-looking-up-midcrown-rope2_web.jpg\" title=\"The view looking up through the branches of a 356\u2010foot\u2010tall tree reveals  hundreds of branches, each with distinctive shape. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-looking-up-midcrown-rope2_web.jpg\" alt=\"The view looking up through the branches of a 356\u2010foot\u2010tall tree reveals  hundreds of branches, each with distinctive shape. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-canopyview-no-sky_web.jpg\" title=\"Redwood dominates the old\u2010growth forests of Redwood National Park, but other conifers are often abundant. In this view across the canopy, Douglas\u2010fir crowns are visible as slightly bluish\u2010green compared to the more yellow\u2010green of redwood crowns. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-canopyview-no-sky_web.jpg\" alt=\"Redwood dominates the old\u2010growth forests of Redwood National Park, but other conifers are often abundant. In this view across the canopy, Douglas\u2010fir crowns are visible as slightly bluish\u2010green compared to the more yellow\u2010green of redwood crowns. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-canopyview2_web.jpg\" title=\"Trees in old\u2010growth redwood forests become highly individualized with age. In this view across the upper canopy each tree\u2019s crown has a distinctive shape. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_rnp-alluvial-canopyview2_web.jpg\" alt=\"Trees in old\u2010growth redwood forests become highly individualized with age. In this view across the upper canopy each tree\u2019s crown has a distinctive shape. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><\/div><div class=\"su-carousel-nav\"><div class=\"su-carousel-direction\"><span class=\"su-carousel-prev\"><\/span><span class=\"su-carousel-next\"><\/span><\/div><div class=\"su-carousel-pagination\"><\/div><\/div><\/div><\/p>\n<hr \/>\n<h3>Humboldt Redwoods State Park Plot<\/h3>\n<div id=\"su_carousel_69d9bf8191896\" class=\"su-carousel su-carousel-centered su-carousel-pages-yes su-carousel-responsive-yes su-lightbox-gallery\" style=\"width:100%\" data-autoplay=\"3000\" data-speed=\"600\" data-mousewheel=\"true\" data-items=\"5\" data-scroll=\"1\"><div class=\"su-carousel-slides\"><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_005_2.jpg\" title=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_005_2.jpg\" alt=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_066_2.jpg\" title=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_066_2.jpg\" alt=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_097_2.jpg\" title=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_097_2.jpg\" alt=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_167_2.jpg\" title=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_167_2.jpg\" alt=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_277_2.jpg\" title=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_277_2.jpg\" alt=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_395_2.jpg\" title=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_395_2.jpg\" alt=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_407_2.jpg\" title=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_407_2.jpg\" alt=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_429_2.jpg\" title=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_429_2.jpg\" alt=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_535_2.jpg\" title=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_hsu_hrsp_evnt080310_535_2.jpg\" alt=\"2010 tour of RCCI plot in Humboldt Redwoods State Park. Photo by Humboldt State University\" \/><\/a><\/div><\/div><div class=\"su-carousel-nav\"><div class=\"su-carousel-direction\"><span class=\"su-carousel-prev\"><\/span><span class=\"su-carousel-next\"><\/span><\/div><div class=\"su-carousel-pagination\"><\/div><\/div><\/div>\n<hr \/>\n<h3>Big Basin Redwoods State Park Plot<\/h3>\n<div id=\"su_carousel_69d9bf836c076\" class=\"su-carousel su-carousel-centered su-carousel-pages-yes su-carousel-responsive-yes su-lightbox-gallery\" style=\"width:100%\" data-autoplay=\"3000\" data-speed=\"600\" data-mousewheel=\"true\" data-items=\"5\" data-scroll=\"1\"><div class=\"su-carousel-slides\"><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-branch-rubbing-scar_web.jpg\" title=\"Reiterated trunks in complex redwood crowns frequently interact with each other and with branches emanating from the main trunk. This reiterated trunk in Big Basin Redwoods State Park rubbed against a branch, now fallen, over many years, leaving this structural evidence. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-branch-rubbing-scar_web.jpg\" alt=\"Reiterated trunks in complex redwood crowns frequently interact with each other and with branches emanating from the main trunk. This reiterated trunk in Big Basin Redwoods State Park rubbed against a branch, now fallen, over many years, leaving this structural evidence. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-canopy-gnarl_web.jpg\" title=\"Extreme decay\u2010resistance allows redwoods to withstand major damage, regenerate crowns, and maintain high leaf areas. Note the hollow trunk near center and damaged trunk to right in this view of Big Basin Redwoods State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-canopy-gnarl_web.jpg\" alt=\"Extreme decay\u2010resistance allows redwoods to withstand major damage, regenerate crowns, and maintain high leaf areas. Note the hollow trunk near center and damaged trunk to right in this view of Big Basin Redwoods State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-canopyview-across-long-branches2_web.jpg\" title=\"Branches of redwoods in the dry portion of its range, such as in Big Basin Redwoods State Park, are often long, lacking bifurcations, and covered with small epicormic shoots bearing foliage and cones. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-canopyview-across-long-branches2_web.jpg\" alt=\"Branches of redwoods in the dry portion of its range, such as in Big Basin Redwoods State Park, are often long, lacking bifurcations, and covered with small epicormic shoots bearing foliage and cones. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-canopyview-foggy14_web.jpg\" title=\"The old\u2010growth forest canopy of Big Basin Redwoods State Park in December is magnificent despite the cold. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-canopyview-foggy14_web.jpg\" alt=\"The old\u2010growth forest canopy of Big Basin Redwoods State Park in December is magnificent despite the cold. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-canopyview-foggy17_web.jpg\" title=\"Old\u2010growth forests along hillslopes, such as in Big Basin Redwoods State Park, are of shorter stature than those in valley bottoms, and there are many more Douglas\u2010fir trees sharing the canopy. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-canopyview-foggy17_web.jpg\" alt=\"Old\u2010growth forests along hillslopes, such as in Big Basin Redwoods State Park, are of shorter stature than those in valley bottoms, and there are many more Douglas\u2010fir trees sharing the canopy. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-lichens-apothecia_web.jpg\" title=\"Epiphyte communities in relatively dry redwood forests are dominated by lichens, including many crusts like this fertile Ochrolechia. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-lichens-apothecia_web.jpg\" alt=\"Epiphyte communities in relatively dry redwood forests are dominated by lichens, including many crusts like this fertile Ochrolechia. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-looking-out-from-t725_web.jpg\" title=\"Epiphytic lichens like these Alectoria often hang from beneath redwood branches in old\u2010growth redwood forests. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-looking-out-from-t725_web.jpg\" alt=\"Epiphytic lichens like these Alectoria often hang from beneath redwood branches in old\u2010growth redwood forests. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-treetop-foliage-and-cones_web.jpg\" title=\"Redwood foliage at the treetop is distinctive from foliage on branches lower in the crown. It often stands erect and has small, tightly clasping leaves, such as this 254\u2010foot\u2010tall treetop bearing male and female cones in Big Basin Redwoods State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_big-basin-treetop-foliage-and-cones_web.jpg\" alt=\"Redwood foliage at the treetop is distinctive from foliage on branches lower in the crown. It often stands erect and has small, tightly clasping leaves, such as this 254\u2010foot\u2010tall treetop bearing male and female cones in Big Basin Redwoods State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><\/div><div class=\"su-carousel-nav\"><div class=\"su-carousel-direction\"><span class=\"su-carousel-prev\"><\/span><span class=\"su-carousel-next\"><\/span><\/div><div class=\"su-carousel-pagination\"><\/div><\/div><\/div>\n<hr \/>\n<h3><a id=\"calaveras\" name=\"calaveras\"><\/a>Calaveras Big Trees State Park<\/h3>\n<p><strong>South Grove Plot<\/strong><br \/>\n<div id=\"su_carousel_69d9bf8558e85\" class=\"su-carousel su-carousel-centered su-carousel-pages-yes su-carousel-responsive-yes su-lightbox-gallery\" style=\"width:100%\" data-autoplay=\"3000\" data-speed=\"600\" data-mousewheel=\"true\" data-items=\"5\" data-scroll=\"1\"><div class=\"su-carousel-slides\"><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-bob-studies-maps2_web.jpg\" title=\"Research team leader, Bob Van Pelt, examines data sheets made during mapping of the 1\u2010hectare plot in Calaveras Big Trees State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-bob-studies-maps2_web.jpg\" alt=\"Research team leader, Bob Van Pelt, examines data sheets made during mapping of the 1\u2010hectare plot in Calaveras Big Trees State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-epiphytic-dogwood-cam-peeking8_web.jpg\" title=\"Sequoiadendron giganteum responds to severe crown damage like its closest relative Sequoia sempervirens: by reiteration of new trunks from the main trunk and limbs. This tree in Calaveras Big Trees State Park is recovering from a lightning strike that shattered the main trunk, creating a decaying cavity 204 feet above the ground that is now home to a 7\u2010foot\u2010tall epiphytic dogwood tree. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-epiphytic-dogwood-cam-peeking8_web.jpg\" alt=\"Sequoiadendron giganteum responds to severe crown damage like its closest relative Sequoia sempervirens: by reiteration of new trunks from the main trunk and limbs. This tree in Calaveras Big Trees State Park is recovering from a lightning strike that shattered the main trunk, creating a decaying cavity 204 feet above the ground that is now home to a 7\u2010foot\u2010tall epiphytic dogwood tree. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-grove-context_web.jpg\" title=\"Understory vegetation in giant sequoia forests is often lush, especially near streams, such as in this view of Calaveras Big Trees State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-grove-context_web.jpg\" alt=\"Understory vegetation in giant sequoia forests is often lush, especially near streams, such as in this view of Calaveras Big Trees State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-mea-rappelling_web.jpg\" title=\"Main trunks of giant sequoias are the largest on Earth, dwarfing the puny scientists who study them. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-mea-rappelling_web.jpg\" alt=\"Main trunks of giant sequoias are the largest on Earth, dwarfing the puny scientists who study them. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-orange-trunk-glowing_web.jpg\" title=\"Crowns of giant sequoias are very dense, obscuring views of the ground except for occasional glimpses through branches as in this disorienting view from Calaveras Big Trees State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-orange-trunk-glowing_web.jpg\" alt=\"Crowns of giant sequoias are very dense, obscuring views of the ground except for occasional glimpses through branches as in this disorienting view from Calaveras Big Trees State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-t66-cam-in-neighbor-treetop-close_web.jpg\" title=\"Giant sequoias invest enormous energy in seed production via long\u2010lived and photosynthetic cones, such as these being counted by Cameron Williams at the top of a 284\u2010foot\u2010tall tree in Calaveras Big Trees State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-t66-cam-in-neighbor-treetop-close_web.jpg\" alt=\"Giant sequoias invest enormous energy in seed production via long\u2010lived and photosynthetic cones, such as these being counted by Cameron Williams at the top of a 284\u2010foot\u2010tall tree in Calaveras Big Trees State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-t66-cam-russell-mapping_web.jpg\" title=\"Mapping crowns of giant sequoias involves measuring distances between the main trunk and other structures, which often requires use of a survey laser. Here Cameron Williams (lower) measures distances with a laser while Russell Kramer (upper) records data. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-t66-cam-russell-mapping_web.jpg\" alt=\"Mapping crowns of giant sequoias involves measuring distances between the main trunk and other structures, which often requires use of a survey laser. Here Cameron Williams (lower) measures distances with a laser while Russell Kramer (upper) records data. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-t66-neighbor-segi-view_web.jpg\" title=\"This old\u2010growth forest in Calaveras Big Trees State Park is home to giant sequoias up to 285 feet tall as well as two other conifers up to 246 feet tall: Abies lowiana and Pinus lambertiana. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-t66-neighbor-segi-view_web.jpg\" alt=\"This old\u2010growth forest in Calaveras Big Trees State Park is home to giant sequoias up to 285 feet tall as well as two other conifers up to 246 feet tall: Abies lowiana and Pinus lambertiana. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-t143-anthony-giacomo-basal-cores4_web.jpg\" title=\"To quantify accurately annual rates of wood production, Giacomo Renzullo (left) and Anthony Ambrose (right) collect increment cores near the base of a medium\u2010size giant sequoia. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-t143-anthony-giacomo-basal-cores4_web.jpg\" alt=\"To quantify accurately annual rates of wood production, Giacomo Renzullo (left) and Anthony Ambrose (right) collect increment cores near the base of a medium\u2010size giant sequoia. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><div class=\"su-carousel-slide\"><a href=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-t143-bole-zone2_web.jpg\" title=\"Bright orange trunks of giant sequoias stand out prominently in old\u2010growth forests, such as in this view of Calaveras Big Trees State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\"><img decoding=\"async\" src=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/FP_ss_calaveras-t143-bole-zone2_web.jpg\" alt=\"Bright orange trunks of giant sequoias stand out prominently in old\u2010growth forests, such as in this view of Calaveras Big Trees State Park. Photo by Stephen Sillett, Institute for Redwood Ecology,  Humboldt State University\" \/><\/a><\/div><\/div><div class=\"su-carousel-nav\"><div class=\"su-carousel-direction\"><span class=\"su-carousel-prev\"><\/span><span class=\"su-carousel-next\"><\/span><\/div><div class=\"su-carousel-pagination\"><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Save the Redwoods League and Humboldt State University lead the Redwoods and Climate Change Initiative (RCCI), a collaborative research program launched in 2009 to study past, present, and future impacts of climate change on coast redwood and giant sequoia forests. &hellip;<\/p>\n","protected":false},"author":2,"featured_media":3591,"parent":263,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-3583","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with 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a collaborative research program launched\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.savetheredwoods.org\/what-we-do\/our-work\/study\/understanding-climate-change\/rcci-forest-network\/\" \/>\n<meta property=\"og:site_name\" content=\"Save the Redwoods League\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SaveTheRedwoodsLeague\" \/>\n<meta property=\"article:modified_time\" content=\"2022-07-28T01:13:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.savetheredwoods.org\/wp-content\/uploads\/RCCI-forest-114.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"700\" \/>\n\t<meta property=\"og:image:height\" content=\"370\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@savetheredwoods\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" 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