Lake Tahoe Basin FOREST ACTION PLAN

Total Page:16

File Type:pdf, Size:1020Kb

Lake Tahoe Basin FOREST ACTION PLAN Lake Tahoe Basin FOREST ACTION PLAN Protecting Communities Restoring Landscapes Published by the California Tahoe Conservancy, August 2019 WILDLAND-URBAN INTERFACE TREATMENTS THE FOREST ACTION PLAN (PLAN) CONTAINS LAKE TAHOE BASIN IGNITIONS 2010–2017 three overarching strategies that support completing LAKE TAHOE BASIN LAND OWNERSHIP and maintaining all wildland-urban interface treatments, and implementing large-landscape restoration: 1. Scale up to match the scale of the solution to the scale of the threat. Develop and Implement Landscape Scale Initiatives Streamline Planning and Permitting Create Powerline Resilience Corridors 2. Build capacity for all phases of the forest landscape management cycle. Expand the Restoration Workforce Lake Tahoe USDA Forest Service 155,000 ac Adapt for Organizational Effciency State of Nevada 7,000 ac State of California 13,500 ac Strategically Use Prescribed Fire Private & Local Government 28,000 ac Increase Restoration Byproduct Utilization 3. Leverage technology for rapid, large-scale, more efcient implementation. OWNERSHIP OF UNDEVELOPED Launch the Technology Innovation Sprint RESIDENTIAL LOTS Improve Decision Making through Better Data Management Enable Rapid Response through a Wildfre Camera Network LAST YEAR BROKE RECORDS for the largest, deadliest, 350 wildfre ignitions most destructive, and most expensive wildland fres. More (red dots) were acres burned in California and Nevada than in any other recorded in the Lake states. Climate change projections suggest that such Tahoe Basin from 2010 levels of destruction could soon become commonplace. to 2017. Over 80 percent Example Lake Tahoe straddles the border of California and Nevada, were human caused. Neighborhood seemingly undisturbed by wildfre. But wildfre, drought, and a potential bark beetle epidemic threaten the communities of the Lake Tahoe Basin (Basin) and the treasured landscape that 24 million visitors enjoy every year. Responding to the increasing threat to our forests, the partner organizations of the Tahoe Fire and Fuels Team The Plan implements the Forest Health focus area of the (TFFT) developed this Plan to proactively minimize the Basin’s Environmental Improvement Program, the signature growing risk. The Plan charts a path for collaboration partnership to restore and protect Tahoe’s natural resources. across property boundaries to accelerate landscape The vitality and resilience of the Basin’s natural landscape USDA Forest Service 3,000 lots restoration and community wildfre protection. and human communities have long been inextricably linked. States of NV & CA 4,000 lots Private & Local Government 6,300 lots The Plan aligns with state and federal plans and The Washoe Tribe of Nevada and California has a 10,000 mandates that call for increasing the pace and scale of year history of environmental stewardship in the Basin. The forest management including Nevada’s Cohesive Strategy Washoe Tribe’s unique knowledge and guardianship of the Implementation Plan and Forest Action Plan, California Basin and its plants and animals guide and support partner Executive Orders B-52-18 and N-05-19, and USDA Forest restoration activities. Within Basin neighborhoods over 13,000 small undeveloped lots are intermixed with homes, forming a dense Service Region 5’s Ecological Restoration Leadership Intent. patchwork. The USDA Forest Service, California Tahoe Conservancy, and Nevada Tahoe Resource Team have completed nearly 100 percent of initial treatments on these public lots to complement neighbors’ defensible space. The TFFT is prioritizing continued maintenance and helping private landowners treat their lots. 2 3 FROM VULNERABILITY TO RESILIENCE Over the next five years, the TFFT will treat an additional 22,000 acres in the wildland-urban interface (completing all initial treatments) and help residents and businesses achieve nearly 100 percent compliance with defensible space requirements. On June 24, 2007, embers from an illegal and abandoned FIRE), Nevada Division of Forestry, and Tahoe Regional FUNDS EXPENDED ACRES TREATED campfire ignited the most destructive fire in Tahoe’ s Planning Agency. Seven fire districts and the Tahoe $20M 10k history. Stoked by strong winds and overgrown forests, Resource Conservation District lead the Tahoe Network the Angora Fire destroyed 254 homes and structures and of Fire Adapted Communities. They help prepare families 9k burned 3,100 acres within hours. If another large fire and neighborhoods for evacuation, create defensible 8k $15M occurs on a summer day, hundreds of thousands of visitors space, and make homes less vulnerable to fire embers. 7k will overwhelm the Basin’ s limited evacuation routes. 6k The Lake Tahoe Basin Multi -Jurisdictional Fuel Reduction The TFFT formed in 2008 with the twin aims of reducing and Wildfire Prevention Strategy guides the TFFT ’s $10M 5k fuels in the wildland -urban interface (WUI) and preparing work. Accordingly, TFFT partners have treated 57,000 4k communities for wildfire. The partnership involves 21 federal, acres in the WUI since 2008. These multiple -benefit 3k tribal, state, and local conservation, land management, thinning and prescribed fire treatments connect to form $5M 2k and fire agencies, including the USDA Forest Service (USFS), continuous areas where fire behavior is reduced and California Department of Forestry and Fire Protection (CAL forest health is improved. 1k — — 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Acres treated lag one to two years behind expenses due to contract timelines. Multiple-year funding from 2008 to 2010 allowed partners to quickly ramp up treatments. Since then, annual funding has reduced signifcantly. Before 2004 2014 The USDA Forest Service, The TFFT revises the California Tahoe Conservancy, Multi -Jurisdictional Strategy 2017 and Nevada Tahoe Resource Team to align with state and begin fuel reduction treatments federal priorities U.S. Forest Service completes on undeveloped public lots 2007 planning for its remaining initial California State Parks WUI treatments 2020 2025 & beyond California State Parks and North The Angora Fire burns in completes most of its initial Lake Tahoe Fire District use South Lake Tahoe and WUI treatments and shifts to Nevada Tahoe Resource Team Complete planning for Maintain WUI treatments prescribed fire to reduce fuels partners develop the maintaining the treatments and Nevada fre districts complete all remaining initial WUI and continue implementing and improve forest health Multi -Jurisdictional Strategy with prescribed fre their initial WUI treatments treatments landscape restoration 2004 2008 2011 2016 2019 2022 Basin fre districts complete Community The TFFT forms to Nevada Tahoe Resource Team begins using Partners launch the Complete the Lake Begin implementing Wildfre Protection Plans that identify redouble community prescribed fre to reduce fuels and improve Lake Tahoe West Tahoe West Landscape Lake Tahoe West priority actions to reduce hazards protection efforts forest health in Lake Tahoe Nevada State Park. Restoration Partnership Restoration Strategy on-the-ground treatments 4 5 A VISION FOR RESILIENT LANDSCAPES AND COMMUNITIES 1. Homes are built, maintained, and retroftted to 6. Forests near powerlines are managed to resist ignition by fre embers. safeguard against ignition, reduce fuels, and improve forest health. 2. Residents and visitors are prepared for evacuation. 7. Prescribed fres burn mainly on the forest foor, Residents and visitors alike depend on the Lake Tahoe Basin’s 3. Defensible space surrounds homes to reduce the reduce fammable undergrowth, and lead to wildfre threat. healthier and more resilient forests. recreation opportunities (and associated economy), clean water, 4. Forests in the wildland-urban interface (about ¼ 8. Streams and riparian areas are restored so mile from communities) have tall, healthy trees that natural processes like fres and foods health benefits, wildlife, and natural beauty. Increasing resilience and little fammable undergrowth. keep hardwoods and meadow vegetation means taking action from the shoreline to the ridgetop. 5. The forests beyond form a mosaic of different sizes healthy and thriving. and types of vegetation, providing diverse habitat for wildlife. SCALING UP STREAMLINE PLANNING & PERMITTING Basin partners are updating and streamlining planning and permitting processes that accelerate project implementation while enhancing environmental safeguards. The climate crisis is outpacing our forest management. Plan large multiple-beneft projects across ownerships. Basin agencies are shifting from planning dozens of smaller Wildfres in the west are becoming larger and more destructive. projects—each of which requires separate environmental review, permitting, contracting, and monitoring—to single Insects have killed 150 million trees throughout the Sierra projects covering thousands of acres across multiple ownerships. Photo: Ben Fish Nevada. The Basin cannot address these threats without Complete a Program Timberland Environmental Impact matching the scale and pace of management to the scale Report (PTEIR) for all non-federal lands on the California CREATE POWERLINE RESILIENCE CORRIDORS side of the Basin. Led by CAL FIRE and Basin fre districts, and pace of climate change. Land managers, fre districts, starting in 2020 the PTEIR will provide comprehensive environmental analysis for thousands of acres of projects. Powerlines are a vital part of the Basin’s infrastructure,
Recommended publications
  • Non-Timber Forest Products
    Agrodok 39 Non-timber forest products the value of wild plants Tinde van Andel This publication is sponsored by: ICCO, SNV and Tropenbos International © Agromisa Foundation and CTA, Wageningen, 2006. All rights reserved. No part of this book may be reproduced in any form, by print, photocopy, microfilm or any other means, without written permission from the publisher. First edition: 2006 Author: Tinde van Andel Illustrator: Bertha Valois V. Design: Eva Kok Translation: Ninette de Zylva (editing) Printed by: Digigrafi, Wageningen, the Netherlands ISBN Agromisa: 90-8573-027-9 ISBN CTA: 92-9081-327-X Foreword Non-timber forest products (NTFPs) are wild plant and animal pro- ducts harvested from forests, such as wild fruits, vegetables, nuts, edi- ble roots, honey, palm leaves, medicinal plants, poisons and bush meat. Millions of people – especially those living in rural areas in de- veloping countries – collect these products daily, and many regard selling them as a means of earning a living. This Agrodok presents an overview of the major commercial wild plant products from Africa, the Caribbean and the Pacific. It explains their significance in traditional health care, social and ritual values, and forest conservation. It is designed to serve as a useful source of basic information for local forest dependent communities, especially those who harvest, process and market these products. We also hope that this Agrodok will help arouse the awareness of the potential of NTFPs among development organisations, local NGOs, government officials at local and regional level, and extension workers assisting local communities. Case studies from Cameroon, Ethiopia, Central and South Africa, the Pacific, Colombia and Suriname have been used to help illustrate the various important aspects of commercial NTFP harvesting.
    [Show full text]
  • Old-Growth Forests
    Pacific Northwest Research Station NEW FINDINGS ABOUT OLD-GROWTH FORESTS I N S U M M A R Y ot all forests with old trees are scientifically defined for many centuries. Today’s old-growth forests developed as old growth. Among those that are, the variations along multiple pathways with many low-severity and some Nare so striking that multiple definitions of old-growth high-severity disturbances along the way. And, scientists forests are needed, even when the discussion is restricted to are learning, the journey matters—old-growth ecosystems Pacific coast old-growth forests from southwestern Oregon contribute to ecological diversity through every stage of to southwestern British Columbia. forest development. Heterogeneity in the pathways to old- growth forests accounts for many of the differences among Scientists understand the basic structural features of old- old-growth forests. growth forests and have learned much about habitat use of forests by spotted owls and other species. Less known, Complexity does not mean chaos or a lack of pattern. Sci- however, are the character and development of the live and entists from the Pacific Northwest (PNW) Research Station, dead trees and other plants. We are learning much about along with scientists and students from universities, see the structural complexity of these forests and how it leads to some common elements and themes in the many pathways. ecological complexity—which makes possible their famous The new findings suggest we may need to change our strat- biodiversity. For example, we are gaining new insights into egies for conserving and restoring old-growth ecosystems. canopy complexity in old-growth forests.
    [Show full text]
  • “Catastrophic” Wildfire a New Ecological Paradigm of Forest Health by Chad Hanson, Ph.D
    John Muir Project Technical Report 1 • Winter 2010 • www.johnmuirproject.org The Myth of “Catastrophic” Wildfire A New Ecological Paradigm of Forest Health by Chad Hanson, Ph.D. Contents The Myth of “Catastrophic” Wildfire: A New Ecological Paradigm of Forest Health 1 Preface 1 Executive Summary 4 Myths and Facts 6 Myth/Fact 1: Forest fire and home protection 6 Myth/Fact 2: Ecological effects of high-intensity fire 7 Myth/Fact 3: Forest fire intensity 12 Myth/Fact 4: Forest regeneration after high-intensity fire 13 Myth/Fact 5: Forest fire extent 14 Myth/Fact 6: Climate change and fire activity 17 Myth/Fact 7: Dead trees and forest health 19 Myth/Fact 8: Particulate emissions from high-intensity fire 20 Myth/Fact 9: Forest fire and carbon sequestration 20 Myth/Fact 10: “Thinning” and carbon sequestration 22 Myth/Fact 11: Biomass extraction from forests 23 Summary: For Ecologically “Healthy Forests”, We Need More Fire and Dead Trees, Not Less. 24 References 26 Photo Credits 30 Recommended Citation 30 Contact 30 About the Author 30 The Myth of “Catastrophic” Wildfire A New Ecological Paradigm of Forest Health ii The Myth of “Catastrophic” Wildfire: A New Ecological Paradigm of Forest Health By Chad Hanson, Ph.D. Preface In the summer of 2002, I came across two loggers felling fire-killed trees in the Star fire area of the Eldorado National Forest in the Sierra Nevada. They had to briefly pause their activities in order to let my friends and I pass by on the narrow dirt road, and in the interim we began a conversation.
    [Show full text]
  • Forest Ecosystem Services: Cultural Values
    Trees At Work: Economic Accounting for Forest Ecosystem Services in the U.S. South 11 Chapter 2 Forest Ecosystem Services: Cultural Values Melissa M. Kreye, Damian C. Adams, Ramesh Ghimire, Wayde Morse, Taylor Stein, J.M. Bowker WHAT ARE CULTURAL SERVICES? associated ecosystem and human components. However, our understanding of the many factors that give rise to cultural ow we define “culture” and societal well-being related ecosystem services is still a matter of ongoing investigation. to culture depends heavily on who is looking at it, but culture can be generally described as “the customs and H There is good reason for investigating the cultural ecosystem beliefs of a particular group of people that are used to express service values associated with forests: they are critical to our their collectively held values” (Soulbury Commission 2012). understanding of the value of forest land and the benefits of In the context of forests, culturally derived norms, beliefs, forest conservation. The U.S. South is expected to lose 30-43 and values help drive preferences for forested landscapes and million forest acres to urbanization between 1997 and 2060 forest-based benefits such as diversity and identity, justice, (Wear and Greis 2002), and structural changes in southeastern education, freedom, and spirituality (Farber and others 2002, ecosystems are expected to impact the provision of a wide Fisher and others 2009, Kellert 1996). Environmental policies range of cultural ecosystem service benefits (Bowker and others and responsible forest management can enhance how forests 2013). Concurrently, social trends also suggest that youth are help give rise to and support cultural ecosystem service values.
    [Show full text]
  • Current U.S. Forest Data and Maps
    CURRENT U.S. FOREST DATA AND MAPS Forest age FIA MapMaker CURRENT U.S. Forest ownership TPO Data FOREST DATA Timber harvest AND MAPS Urban influence Forest covertypes Top 10 species Return to FIA Home Return to FIA Home NEXT Productive unreserved forest area CURRENT U.S. FOREST DATA (timberland) in the U.S. by region and AND MAPS stand age class, 2002 Return 120 Forests in the 100 South, where timber production West is highest, have 80 s the lowest average age. 60 Northern forests, predominantly Million acreMillion South hardwoods, are 40 of slightly older in average age and 20 Western forests have the largest North concentration of 0 older stands. 1-19 20-39 40-59 60-79 80-99 100- 120- 140- 160- 200- 240- 280- 320- 400+ 119 139 159 199 240 279 319 399 Stand-age Class (years) Return to FIA Home Source: National Report on Forest Resources NEXT CURRENT U.S. FOREST DATA Forest ownership AND MAPS Return Eastern forests are predominantly private and western forests are predominantly public. Industrial forests are concentrated in Maine, the Lake States, the lower South and Pacific Northwest regions. Source: National Report on Forest Resources Return to FIA Home NEXT CURRENT U.S. Timber harvest by county FOREST DATA AND MAPS Return Timber harvests are concentrated in Maine, the Lake States, the lower South and Pacific Northwest regions. The South is the largest timber producing region in the country accounting for nearly 62% of all U.S. timber harvest. Source: National Report on Forest Resources Return to FIA Home NEXT CURRENT U.S.
    [Show full text]
  • FOREST BIODIVERSITY Earth’S Living Treasure
    OLOGIC OR BI AL DI Y F VER DA SI L TY A 2 N 2 IO M T a A y N 2 R 0 E 1 T 1 N I FOREST BIODIVERSITY Earth’s Living Treasure INTERNATIONAL DAY FOR BIOLOGICAL DIVERSITY 22 May 2011 FOREST BIODIVERSITY Earth’s Living Treasure Published by the Secretariat of the Convention on Biological Diversity. ISBN: 92-9225-298-4 Copyright © 2010, Secretariat of the Convention on Biological Diversity. The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Secretariat of the Convention on Biological Diversity concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The views reported in this publication do not necessarily represent those of the Convention on Biological Diversity. This publication may be reproduced for educational or non-profit purposes without special permission from the copyright holders, provided acknowledgement of the source is made. The Secretariat of the Convention would appreciate receiving a copy of any publications that use this document as a source. Citation: Secretariat of the Convention on Biological Diversity (2010). Forest Biodiversity—Earth’s Living Treasure. Montreal, 48 pages. For further information, please contact: Secretariat of the Convention on Biological Diversity World Trade Centre 413 St. Jacques Street, Suite 800 Montreal, Quebec, Canada H2Y 1N9 Phone: 1 (514) 288 2220 Fax: 1 (514) 288 6588 E-mail: [email protected] Website: www.cbd.int Design & typesetting: Em Dash Design Cover illustration: Cover illustration: Untitled, 2010.
    [Show full text]
  • Effects of Forest Certification on Biodiversity Marijke Van Kuijk, Francis E
    Effects of Forest Certification on Biodiversity Marijke van Kuijk, Francis E. Putz & Roderick Zagt Effects of Forest Certification on Biodiversity Marijke van Kuijk, Francis E. Putz and Roderick Zagt 2009 Copyright: © Tropenbos International All rights reserved. No part of this publication, apart from bibliographic data and brief quotations in critical reviews, may be reproduced, recorded or published in any form including print photocopy, microform, electronic or electromagnetic record without written permission. Citation: van Kuijk, M., Putz, F.E. and Zagt, R.J (2009) Effects of forest certification on biodiversity. Tropenbos International, Wageningen, the Netherlands. ISBN: 978-90-5113-090-4 The authors: Marijke van Kuijk and Roderick Zagt are at Tropenbos International, Wageningen, the Netherlands. Francis Putz is at the Department of Botany, University of Florida, Gainesville, Florida. This study was commissioned by the Netherlands Environmental Assessment Agency (PBL). PO Box 303, 3720 AH Bilthoven, the Netherlands. e: [email protected], t: +31.(0)30. 2743688, i: www.pbl.nl Design & Layout: Juanita Franco Cover photos: R. Zagt and TBI archive. Photos: FAO-mediabase, László Tóth (iv); J. van der Ploeg (xii); Fransisco Nieto (2); M. Wit (4, 17, 23, 37); TBI archive (24, 27, 83); W. Heerding (18); R. Zagt (12, 28, 84); FAO-mediabase, Jim Ball (38); B. van Gemerden (72). Printed by: Digigrafi, Wageningen, the Netherlands. Tropenbos International PO Box 232 6700 AE Wageningen, the Netherlands t: +31.(0)317.481416 e: [email protected]
    [Show full text]
  • Old Growth Forest & Hetzel Nature Trail Guide
    Old Growth Forest & Hetzel Nature Trail Rare. Distinctive. Diverse. 25 Acres of forest evolved over 10,000 years 59 63 47 51 56 34 46 26 1 2 17 Scenic. Historic. Dynamic. North Trail (1.4 miles) South Trail (.9 mile) Centerville Creek Trail Entrances Please respect LTC’s Old Growth Forest • Stay on the hiking trail. • No pets or bikes. • Clean the soles of your shoes to avoid introducing seeds of exotic (non-native) species. • Collecting is not allowed. • Leave no trace. Lakeshore Technical College has a unique ecological asset in its 25-acre forest – a wooded area containing old-growth trees. This is a unique biological feature that has evolved for more than 10,000 years without any recent significant intervention. This rare and distinctive treasure located on LTC’s campus will serve as the base for an educational trail. The preservation of the forest, construction of the trail, and this trail guide are the result of a volunteer partnership of concerned community members, with officials from Woodland Dunes Nature Center, UW-Manitowoc, UW-Sheboygan and LTC. LTC lies just northeast of the “Tension Zone” that separated Wisconsin’s two distinct floristic provinces at the time of European exploration: the southern hardwood forest, oak savanna, and prairie province to the south, and the conifer and northern hardwood forest to the north. The tension zone boasts an intermingling of species from both provinces. This forest is close enough to the tension zone to be considered a part of it since it has both the northern and southern components. See page 11.
    [Show full text]
  • Ecosystem Services from Forested Landscapes: an Overview
    Ecosystem Services from Forest Landscapes: An Overview Guillermo Martínez Pastur, Ajith H. Perera, Urmas Peterson, and Louis R. Iverson 1 What are Ecosystem Services? Human beings derive direct benefit from an array of ecosystem goods as well as from the activities and products of organisms, in both wild and human-dominated ecosystems (Daily et al. 1997; Levin and Lubchenco 2008). These benefits from nature have been readily available throughout most of human history. To this day, societies take many of these natural services for granted (Daily 1997, MEA 2005), even while the support systems that provide them are being severely degraded (Vitousek et al. 1997; Levin and Lubchenco 2008; Seppelt et al. 2011). The central challenge of this century is to develop economic and social systems and supporting systems of governance from local to global scales that will achieve sustainable lev- els of human population and consumption while also maintaining the ecosystem life-support services that underpin human well-being (Guerry et al. 2015). The full range of ecosystem benefits to human life is grouped under the concept “ecosystem services” (ES). Since this concept was first introduced (Ehrlich and Mooney 1983), it has evolved (Daily 1997; MEA 2005) into a global phenomenon (e.g., Kubiszewski et al. 2017). ES can be briefly defined as the benefits that humans G. Martínez Pastur (*) Centro Austral de Investigaciones Científicas (CADIC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ushuaia, Tierra del Fuego, Argentina e-mail: [email protected] A. H. Perera Ontario Forest Research Institute, Sault Ste. Marie, ON, Canada U. Peterson Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, Tartu, Estonia L.
    [Show full text]
  • Forest Landowner's Guide to Field Grading Hardwood Trees
    DIVISION OF AGRICULTURE RESEARC H & EXTENSION Agriculture and Natural Resources University of Arkansas System FSA5015 Forest Landowner’s Guide to Field Grading Hardwood Trees Kyle Cunningham Many forest landowners own economic value. Therefore, this fact hardwood stands and are not aware of sheet will refer to tree grade and AssociateExtension Instructor Professor - of the great differences in quality and butt-log grade interchangeably. Forestry value between individual trees within these stands. Tree (or log) grade, among other factors, is essential in determining the quality and economic value of hardwood trees. The objective of this fact sheet will be to explain the tree grading process in a simple, straightforward manner. Why Is Tree Grade Important? Because grading is the method for estimating the wood quality a particular tree may produce, it provides information for establishing Figure 1. Log locations within the main a tree’s monetary value. If a land- stem of a tree. owner is interested in timber produc- tion, maintaining higher grade trees is important. The reason for this prin - Because grade is the determining ciple is simple: high-grade trees factor in establishing the type of saw- contain much more economic value timber product (or products) a tree than low-grade trees. If a forest may produce, grades are typically landowner is interested in economic applied to sawlog-size trees return, tree grade is as important as (diameter > 12 inches). tree volume in determining the rate of return for a hardwood stand. Field Grades Three field grades are used to What Is a Tree Grade? rank the quality of tree logs: F1, F2 Tree grade is a measure used to and F3.
    [Show full text]
  • Primary Forests and Biodiversity
    Fact Sheet no. 2 Primary Forests and Biodiversity Forests have high biodiversity compared to other ecosystems Forest ecosystems are vital refuges for global terrestrial biodiversity. Currently, forests cover less than a third of Earth’s land cover, but contain up to 80% of terrestrial biomass and provide habitat for over half of the known terrestrial plant and animal species (Morales-Hidalgo et. al. 2015). In 1997, the IUCN estimated that 12.5% of plants, 44% of birds, 57% of amphibians 87% of reptiles and 75% of mammals were threatened by forest decline (Shvidenko 2005). Species richness is high in tropical forests Although tropical forests cover less than 10% of the global land area, they harbour up to 90% of Earth’s terrestrial species (Shvidenko 2005), largely in the tropical humid forests (Pimm et al. 2000). More than half of all known plant species occur in tropical forests. The humid tropical forests of the Amazon, Brazilian Atlantic Forest, Congo, Eastern Arc in Africa and the Southeast Asian mainland and islands house the greatest number of bird and mammal species (Jenkins et al. 2013). A single hectare of tropical forest can contain over 300 tree species, even when only stems > 10 cm in diameter are included (Laurance et al. 2010). Tropical regions also have the highest numbers of species in decline (Dirzo et al. 2014). Very high rates of predicted extinctions are based on the ongoing loss of tropical forests (Pimm & Raven 2000). These predictions are likely to under-estimate the magnitude of the extinction crisis (Pimm et al. 2014), however, as species inventories are very incomplete, especially in poorly studied areas and known biodiversity hotspots (Scheffers et al.
    [Show full text]
  • Rain Forest Products Learning About Products That Come from the Rain Forest
    Rain Forest Products Learning about products that come from the rain forest Grades 3-6 Objectives Students will identify products made from resources found in a tropical rain forest. MATERIALS Students will be able to discuss the impact of rainforest deforestation on their lives. rain forest products brought in by students Background information More than half (some say up to 90%) of all plant and animal species on Earth are found in Key Words rain forests. tropical rain forest One-fourth of all medicine in use today is derived from plants. 70% of the plants containing compounds useful in cancer treatment are found only in rainforests, yet Standards less than 1% of tropical rainforest plants have been thoroughly studied for their chemical compounds. SCI.4.2.4 Each year, an area the size of New York (over 30,000 square miles) of tropical rain forest is SCI.4.2.5 destroyed. At the present rate of destruction (about one acre per second), the remaining rain forest SCI.4.2.6 could be depleted in this century. SCI.6.3.2 Procedure Give each student a copy of the list entitled “Rain Forest Products.” Ask students to look for and bring in empty jars/boxes from home that contained these products or to clip pictures of these products from magazines. Assemble the pictures on a bulletin board or make a display of the items collected. Discuss the importance of the rain forest products. How would our lives be different if the rain forests had been destroyed before these products had been discovered? What could we be losing now that the rain forests are disappearing at the rate of 60 acres per minute? Recommended Assessment Assess students based on participation in discussion and contribution to display.
    [Show full text]