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Highlight IDTitleStrategic Program Area(s)YearStation
Photo of Mountain pine beetle damage. Daniel Miller, USDA Forest Service
ID: 693
A 25-Year History of Forest Disturbance and Cause in the United States

Understanding trends in forest disturbance caused by fire, harvest, stress, weather, and conversion is important for many forest management deci ...

Principal Investigator : Gretchen Moisen

Inventory and Monitoring2014RMRS
Photo of Trimmed and intact plots in El Yunque National Forest. Forest Service
ID: 196
A Canopy Trimming Experiment in Puerto Rico: the response of litter invertebrate communities to canopy loss and debris deposition in a tropical forest subject to hurricanes

Insects and other invertebrates in leaf litter are important components in decomposition, nutrient cycling, and food webs. As part of larger stu ...

Principal Investigator : Grizelle Gonzalez

Water, Air, and Soil
Inventory and Monitoring
2010IITF
Photo of Rock skullcap flower. Ronald A. Polgar, USDA Forest Service
ID: 610
A Globally Rare Plant's Response to Fire

The resiliency of rock skullcap, a globally rare plant, was studied by a Forest Service scientist working with a National Forest System ecologis ...

Principal Investigator : Cynthia Huebner

Inventory and Monitoring2014NRS
Photo of Students measuring vegetation structure in urban socio-ecosystem. Forest Service
ID: 324
A socioecological network for a tropical city

Traditional urban research involves tree inventories, census activities, water quality sampling, or socioeconomic studies, all conducted by sepa ...

Principal Investigator : Ariel Lugo

Water, Air, and Soil
Invasive Species
Resource Management and Use
Wildlife and Fish
Inventory and Monitoring
2011IITF
Photo of The change in forest industry employment (NAICS 113, 321, 322, 337) from 2005 to 2010 compared to each state's total manufacturing employment in 2005.   Each state's circle is scaled to its total timberland growing stock volume in 2010 (northern region). Forest Service
ID: 40
Analysis Reveals Cyclical and Structural Changes in Forest Products Industry

Structural changes may be difficult to reverse but prospects for growth exist in forest product exports and wood-based biorefining

Principal Investigator : Christopher W. Woodall

Inventory and Monitoring2012NRS
Photo of A Forest Service inventory specialist entering data in a pinyon/juniper woodland. USDA Forest Service
ID: 545
Annual Inventory of New Mexico's Forests More Accurate Thanks to Stratification Key

The Forest Inventory and Analysis Program must provide unbiased estimates of forest area. An accurate baseline of New Mexico's forests and futu ...

Principal Investigator : Sara A. Goeking

Inventory and Monitoring2013RMRS
Photo of Block and plot structure in El Verde research area.  Inferred area covered by each block is 40,000 m2 and the complete study area covers around 106 m2.  Forest Service
ID: 16
Assessing Litterfall Trap Bias

Are traps preferentially representing certain kinds of leaf litter

Principal Investigator : Grizelle Gonzalez

Resource Management and Use
Water, Air, and Soil
Inventory and Monitoring
2012IITF
Photo of Nicaraguan reporter and IITF cooperator, Adelayde Rivas Sotelo, filming the biodiversity project. Forest Service
ID: 17
Avian Diversity in the Agroscapes of Nicaragua's Northern Highlands

Creating biological corridors to sustain biodiversity, while increasing revenue for local farmers

Principal Investigator : Wayne J. Arendt, PhD

Wildlife and Fish
Inventory and Monitoring
2012IITF
Photo of Map of downed and dead woody material. Grant Domke, USDA Forest Service
ID: 461
Better Estimates of Carbon Inventory in Dead Wood Now Available

Researchers with the Forest Inventory and Analysis (FIA) program have sampled downed and dead woody material (DWM) since 2002 so most U.S. state ...

Principal Investigator : Grant M. Domke

Inventory and Monitoring2013NRS
Photo of
ID: 100
Biocontrol of Strawberry Guava

First field release of biocontrol agent for managing invasive strawberry guava

Principal Investigator : Tracy Johnson

Invasive Species
Inventory and Monitoring
Resource Management and Use
2012PSW
Photo of Forest Service technician Tina Ciaramitaro heading out to set up Fluon-coated multiple funnel traps to capture wood boring beetles. Therese Poland, USDA Forest Service
ID: 474
Building a Better Bug Trap

Recent research identified attractive pheromones for several species of wood boring beetles that may threaten forest health. Forest Service ento ...

Principal Investigator : Therese M. Poland

Inventory and Monitoring2013NRS
Photo of Distribution of forest inventory observations of seedlings (blue) and trees (red) for eastern red cedar in eastern U.S. forests:  (A) Time 1: all forest sites, (B) Time 2: non-disturbed forest sites, and (C) Time 2: disturbed forest sites. Christopher Woodall, USDA Forest Service
ID: 462
Can Tree Species Rapidly Adapt to Climate Change by Migrating?

New techniques to monitor tree ranges in forests of the eatern U.S. suggest that current ranges may not be shifting along their range margins in ...

Principal Investigator : Christopher W. Woodall

Inventory and Monitoring2013NRS
Photo of View of the Bisley Experimental Watersheds, Luquillo Experimental Forest, Puerto Rico with Cecropia schreberiana (yagrumo) in the valleys and Dacryodes excelsa (tabonuco) in the ridges. Forest Service
ID: 195
Changes in Structure, Composition, and Nutrients During 15 years of Hurricane-Induced Succession in a Subtropical Wet Forest in Puerto Rico

Quantifying the impacts and recovery of forest resources to hurricanes and multiple disturbances is essential to managing forests in hurricane-p ...

Principal Investigator : Tamara Heartsill Scalley

Resource Management and Use
Inventory and Monitoring
2010IITF
Photo of Changing Climate, Changing Forests: The Impacts of Climate Change on Forests of Northeastern United States and Eastern Canada. Forest Service
ID: 35
Changing Climate, Changing Forests

Effects of climate change on forests of the Northeastern United States and Eastern Canada

Principal Investigator : Lindsey Rustad

Inventory and Monitoring
Invasive Species
2012NRS
Photo of Arctic average temperatures have risen at almost twice the rate of the rest of the world over the past few decades. Herbaceous dicots, sedges and grasses, and shrubs have been increasing while the cover of both Sphagnum and other mosses have been decreasing over the last two decades. Forest Service
ID: 184
Climate and vegetation change in Alaskan tundra.

Studies of tundra vegetation changes in recent decades have predicted an increase in the relative abundance of shrubs in response to climate war ...

Principal Investigator : William A. Gould

Inventory and Monitoring
Resource Management and Use
2010IITF
Photo of The Thompson Ridge Fire in the Jemez Mountains, taken from the Valles Caldera Bonca Bonita site (north-central New Mexico). Jeremy Marshall,  USDA Forest Service
ID: 694
Comprehensive Inventory of Forest Health Trends in New Mexico

The public, forest managers, and scientists now have the most comprehensive inventory of forest health trends in New Mexico's history. The repor ...

Principal Investigator : Sara A. Goeking

Inventory and Monitoring2014RMRS
Photo of Blackgum trees are one of the species whose ranges may shift. Vern Wilkins,  Indiana University
ID: 742
Cooperation Leads to Continued Research on Tree Range Shifts in the Eastern U.S.

In an attempt to understand the potential impact of climate change on tree species ranges in the eastern U.S., teams of researchers from the For ...

Principal Investigator : Christopher Oswalt

Resource Management and Use
Inventory and Monitoring
2014SRS
Photo of
ID: 98
Do Insects Visit and Pollinate Tanoak Flowers

The knowledge is key for informed conservation of the species

Principal Investigator : Jessica W. Wright

Invasive Species
Inventory and Monitoring
2012PSW
Photo of Hoary bats (Lasiurus cinereus) are the most frequent fatalities at wind energy facilites. Forest Service
ID: 105
Echolocation Monitoring Models Bat Occupancy Near Wind Energy Facilities

Model could mitigate the effects of wind energy development on populations of migratory bats

Principal Investigator : Ted Weller

Wildlife and Fish
Resource Management and Use
Inventory and Monitoring
2012PSW
Photo of Book cover
ID: 458
Ecological Gradient Analyses in Tropical Ecosystems

Forest Service scientists recently published a book that contains a comprehensive analysis of ecological gradients in the Luquillo Mountains of ...

Principal Investigator : Grizelle Gonzalez

Inventory and Monitoring
Water, Air, and Soil
Resource Management and Use
2013IITF
Photo of
ID: 112
Effects of Rising Temperature on Carbon Cycling and Storage in Ecosystems

Scientists find that as ecosystems warm, they store more carbon, not less

Principal Investigator : Christian P. Giardina

Resource Management and Use
Water, Air, and Soil
Inventory and Monitoring
2012PSW
Photo of Report cover. USDA Forest Service
ID: 616
Estimating Greenhouse Gas Fluxes in Managed Forests

Forests have an important role in reducing greenhouse gases in the atmosphere. Forest Service scientists wrote the forestry chapter in a recent ...

Principal Investigator : Coeli Hoover

Inventory and Monitoring
Water, Air, and Soil
2014NRS
Photo of Map of invasives across the Northern U.S.  Cassandra Kurtz, USDA Forest Service
ID: 612
Examining the Spread of Invasive Species Using Data from the Forest Inventory and Analysis Program

Invasive plant species threaten the integrity of our ecosystems and cost billions of dollars in damages and removal costs annually. Forest Servi ...

Principal Investigator : Cassandra Kurtz

Invasive Species
Inventory and Monitoring
2014NRS
Photo of
ID: 333
FIA 5-year report summarizes forest conditions in Washington

This report highlights forest conditions and trends from 2002 to 2006 for all forest lands in Washington State. This information establishes a b ...

Principal Investigator : Karen Waddell

Inventory and Monitoring2011PNW
Photo of National standing dead biomass (Mg/ha) Forest Service
ID: 44
First Inventory of Standing Dead Trees Across the United States Developed

Study compares differences between previously modeled estimates and new empirical estimates

Principal Investigator : Christopher W. Woodall

Inventory and Monitoring2012NRS
Photo of An agricultural area near Sequim, Washington, with recent housing developments on previous agricultural and forest resource lands. Andrew Gray, USDA Forest Service
ID: 513
Forest and Agricultural Land Area Declines in Washington State While Residential and Urban Land Use Increases Over Past 30 years

Station scientists and partners assessed changes in land use and housing density across Washington state from 1976 to 2006. They found that the ...

Principal Investigator : Andrew Gray

Inventory and Monitoring2013PNW
Photo of World Bank/Global Environment Facility personnel learn about Forest Service efforts in climate change mitigation and adaptation in Baltimore. Forest Service
ID: 45
Forest Carbon Estimates for Climate Benefits Projects Around the World

Science on forest carbon benefits developed by the Forest Service contributes to a reduction in deforestation and degradation in forests through ...

Principal Investigator : Linda S. Heath

Inventory and Monitoring2012NRS
Photo of A field technician installs a potential study plot on the island of O'ahu. Natalie Tangalin, Forest Service
ID: 334
Forest Inventory and Analysis begins work on Hawaiian Islands

Policymakers and natural resource managers need up-to-date, consistent, and credible information on the status and trends of forests in Hawaii a ...

Principal Investigator : Robert Pattison

Inventory and Monitoring2011PNW
Photo of Comparison of vegetation change tracker output products without (left) and with (right) snow-covered winter satellite imagery. Kirk Stueve, Forest Service
ID: 318
Forest Land Estimates Improved by Novel Automated Mapping Technique Using Winter Satellite Imagery

Most automated satellite-based approaches for mapping forest lands rely on summer satellite imagery and are usually inconsistent with FIA plot-b ...

Principal Investigator : Northern Research Station

Inventory and Monitoring2011NRS
Photo of Landscape photograph of the Missouri Ozark forests. Dan Dey, USDA Forest Service
ID: 609
Forest Management Guidelines Help Improve and Sustain Missouri's Forest Resources

Missouri landowners and resource managers need state-of-the-art, science-based knowledge of forest management planning, silviculture, and best m ...

Principal Investigator : Daniel C. Dey

Inventory and Monitoring
Resource Management and Use
Water, Air, and Soil
Outdoor Recreation
Invasive Species
Wildland Fire and Fuels
2014NRS
Photo of U.S. forest ownership map. Jake Hewes, USDA Forest Service
ID: 628
Forest Ownership Map of the Conterminous United States

Nearly two-thirds of the forests of the conterminous U.S. are privately owned, not publicly owned, as many assume. To help clear up this underst ...

Principal Investigator : Brett Butler

Inventory and Monitoring2014NRS
Photo of
ID: 405
Giving forest-fringe communities a stake in restoring and conserving rainforests in Africa

Restoring, conserving and protecting forests depends on the action of local communities. Community members can be given incentives to conserve f ...

Principal Investigator : John A. Stanturf

Resource Management and Use
Water, Air, and Soil
Inventory and Monitoring
2011SRS
Photo of Students get outdoor instruction as part of the Go Green Club. Nikka Labella, Bradford Area School District
ID: 658
Go Green Club Introduces Students to the Forest

The Forest Service's Northern Research Station and Allegheny National Forest are key partners in establishing the "Go Green Club," an after-scho ...

Principal Investigator : Barbara McGuinness

Invasive Species
Outdoor Recreation
Inventory and Monitoring
Resource Management and Use
Water, Air, and Soil
2014NRS
Photo of The southern part of the San Juan Bay Estuary, a hilly area with soils  derived from volcanic soils, is less densely developed and has higher  tree cover than other parts of the watershed. Tom Brandeis, USDA Forest Service
ID: 738
Highly Dynamic Urban Forest in San Juan, Puerto Rico.

Between 2001 and 2010, the urban forest in the San Juan Watershed in Puerto Rico was highly dynamic. Nearly 50 percent in trees originally sampl ...

Principal Investigator : Wayne C. Zipperer

Inventory and Monitoring
Resource Management and Use
2014SRS
Photo of
ID: 233
Historic Critchfield Memorial Herbarium Goes Digital: Believed to Be the Largest Collection of Pine Specimens in the World

The USDA Forest Service's Pacific SouthwestResearch Station, Institute of Forest Genetics, Placerville, CA, has released the online version of i ...

Principal Investigator : Jessica W. Wright

Resource Management and Use
Inventory and Monitoring
2010PSW
Photo of Adult goshawk in northern hardwood stand in Chequamegon-Nicolet National Forest, Wisconsin. Forest Service
ID: 350
How Large-scale Forest Conditions Influence Northern Goshawk Nesting

Efforts to better understand nesting habitat requirements of the northern goshawk, a forest-sensitive species in northern Wisconsin, were enhanc ...

Principal Investigator : Deahn Donner

Wildlife and Fish
Inventory and Monitoring
2011NRS
Photo of Aboveground biomass map created with LIDAR and FIA plots for Anne Arundel and Howard Counties, Maryland. Kristofer Johnson, USDA Forest Service
ID: 607
How to Build a Better Map of Tree Biomass

A logical way to validate biomass maps derived from remotely sensed data is to validate them with independent ground inventory estimates, but in ...

Principal Investigator : Kristofer Johnson

Inventory and Monitoring2014NRS
Photo of Mushroom on piece of downed dead wood. Fungal communities are a critical driver of dead wood residence times.  Christopher Woodall, USDA Forest Service
ID: 599
If a Tree Falls in a Forest, How Long Does It Lie There

Dead wood is critical to nutrient cycling, carbon dynamics, tree regeneration, wildlife habitat, and wildfire behavior in forests. Forest Servi ...

Principal Investigator : Christopher W. Woodall

Inventory and Monitoring2014NRS
Photo of Local children playing in an agricultural area converted from forest in northern Thailand. Linda S. Heath, USDA Forest Service
ID: 493
Improving Forest Inventory and Monitoring Capacity in Countries of the World

Efficient national and subnational level inventory and monitoring systems are needed to characterize carbon and other attributes of forests so t ...

Principal Investigator : Charles Scott

Inventory and Monitoring2013NRS
Photo of
ID: 221
Improving the Accuracy of Tree Ring Age Measurements

NRS Scientist Shawn Fraver developed regression models to estimate tree age adjustments needed, depending on coring height and growth rate.

Principal Investigator : Shawn Fraver

Inventory and Monitoring2010NRS
Photo of Housing development near the Gifford Pinchot National Forest, Washington. Rhonda Mazza, USDA Forest Service
ID: 675
Increasing Development Near Public Forest Lands in Washington and Oregon Has Implications for Public Land Management and Fire Suppression

Areas bordering public forest land in Washington and Oregon are showing substantial increases in development, with the number of structures on p ...

Principal Investigator : Andrew Gray

Inventory and Monitoring
Resource Management and Use
2014PNW
Photo of Passive samplers for air pollution in Athabasca Oil Sands Region. Forest Service
ID: 87
Industrial Air Pollution May Have Ecological Consequences

Elevated concentrations of ammonia can negatively impact lichen communities and elevated levels of nitrogen and sulfur deposition can potentiall ...

Principal Investigator : Andrzej Bytnerowicz

Water, Air, and Soil
Inventory and Monitoring
2012PSW
Photo of The arctic field ecology youth-elder-science camp observing microscopic soil invertebrates. Forest Service
ID: 325
Integrating Research, Education, and Traditional Knowledge in Ecology

Integrating research and education is a fundamental goal of research institutions and agencies but specific approaches not widely published in e ...

Principal Investigator : William A. Gould

Resource Management and Use
Water, Air, and Soil
Inventory and Monitoring
2011IITF
Photo of Garlic mustard, Allaria petiolata, transforms forest understories and was found on 7 percent of the plots in the Northeast and Midwest. John M. Randall, Bugwood.org
ID: 532
Introduced Plant Species Found on Two-thirds of Forest Inventory Plots in the Northeast and Midwest United States

Scientists found 305 introduced species recorded, with multiflora rose (Rosa multiflora) being the most common species.

Principal Investigator : Bethany Schulz

Inventory and Monitoring
Invasive Species
2013PNW
Photo of Fish screen installed in a wetland unit at the Hanalai National Wildlife Refuge on Kauai. Fish are removed from the water as it flows through the screen. The fish-free water is then used to flood the wetland unit behind the screen. Richard MacKenzie, USDA Forest Service
ID: 684
Keeping Out Exotic Fish Improves Endangered Hawaiian Waterbird Habitat

Exotic tilapia and mosquito fish are found in aquatic ecosystems throughout the Hawaiian Islands where they degrade native fish and waterbird ha ...

Principal Investigator : Richard A. Mackenzie

Invasive Species
Inventory and Monitoring
Wildlife and Fish
2014PSW
Photo of Bone lichen (Hypogymnia spp.) is a common sight in Alaska's forests. Sarah Jovan, USDA Forest Service
ID: 662
Lichen Are Indicators of Climate Change in Southern Alaska's Forests

Lichens respond quickly to climate changes and potentially allow early detection of shifting conditions before other changes in vegetation are a ...

Principal Investigator : Sarah Jovan, Dr

Inventory and Monitoring2014PNW
Photo of Quercus kelloggii lichen grows in the San Bernardino National Forest that receives about 70 kilograms of nitrogen per hectare per year -- background levels are less than 1kg. Sarah Jovan, Forest Service
ID: 92
Lichen Communities Serve as Canary in the Coal Mine for Air Pollution

A comparison of lichen communities from 1976 to 2008 suggests continued deterioration of air quality in the Los Angeles Basin despite policy and ...

Principal Investigator : Sarah Jovan, Dr

Inventory and Monitoring2012PNW
Photo of Wolf lichen (Letharia spp.) is a species frequently used to estimate nitrogen deposition in western forests. Jason Hollinger, Wikimedia Commons
ID: 663
Lichen Indicate Air Quality Near Natural Gas Wells

Nitrogen in lichen tissues closely correlates with measured nitrogen deposition in forests near natural gas wells in the Bridger Wilderness, WY. ...

Principal Investigator : Sarah Jovan, Dr

Water, Air, and Soil
Inventory and Monitoring
2014PNW
Photo of Modeled spring runoff total phosphorus (mg/L) and turbidity (NTU) for watersheds with observed values (gauged) and based on landscape variables only (unguaged) for Lake Michigan.  Gray areas are the portions of the basin not modeled.  Charles Perry, USDA Forest Service
ID: 629
Linking Land Use to Water Quality

Sediment and phosphorus delivery to the Great Lakes is influenced by land use and land cover patterns. Forest Service scientists studied the imp ...

Principal Investigator : Charles H. (Hobie) Perry

Inventory and Monitoring2014NRS
Photo of The upper left is the modeled historic probability of occurrence of shortleaf pine based on General Land Office Survey data, the upper right is the current probability of occurrence of shortleaf pine based on FIA data.  The lower left is the modeled historic probability of occurrence of white oak based on General Land Office Survey data, the lower right is the current probability of occurrence of white oak based on FIA data. Daniel Dey, USDA Forest Service
ID: 504
Loss of diversity in the Missouri Ozark Highlands Places Ecosystem at Risk

Past land use over the last 200 years has made Missouri's Ozark Highlands less diverse and more homogeneous in the condition of its vegetation. ...

Principal Investigator : Daniel C. Dey

Inventory and Monitoring
Resource Management and Use
Wildland Fire and Fuels
2013NRS
Photo of Forest disturbance type, age and vertical structure were mapped for the first time with widely available satellite imagery, substituting an image time series for vertical forest canopy space. Forest Service
ID: 194
Mapping avian habitat characteristics using cloud-cleared satellite image mosaics

Forest age, vertical structure, disturbance For studies of wintering habitat for the endangered Kirtland's Warbler, scientists from the Forest S ...

Principal Investigator : Eileen H. Helmer

Inventory and Monitoring
Wildlife and Fish
2010IITF
Photo of The endangered red-cockaded woodpecker (Picoides borealis). Jerry Payne, USDA Agricultural Research Serivce, Bugwood.org
ID: 73
Mapping Hardwood and Softwood Vegetation Types with LiDAR

Study informs forest management activities and assesses woodpecker habitat

Principal Investigator : Robert McGaughey

Inventory and Monitoring2012PNW
Photo of LiDAR-based distribution maps (Moscow Mountain, northern Idaho) for different snag diameter classes (top) and understory shrubs (bottom).  Twenty meter pixel presence/absence products are to the left, and 1- ha density maps are to the right. The presence/absence maps include, between parentheses, the proportional cover of the two classes (i.e. present vs. absent). Forest Service
ID: 182
Mapping snags and understory shrubs with LiDAR to assess wildlife habitat suitability.

Forest Service scientists evaluated the use of LiDAR data for mapping the presence/absence of understory shrub species and different snag diamet ...

Principal Investigator : William A. Gould

Wildlife and Fish
Inventory and Monitoring
2010IITF
Photo of
ID: 220
Mapping Young Forest Habitats across the Great Lakes Region

NRS research scientists from the Forest Inventory and Analysis (FIA) program used current FIA data to estimate trends in abundance of young fore ...

Principal Investigator : Mark D. Nelson

Inventory and Monitoring2010NRS
Photo of
ID: 228
Maps illustrate 23 years of change on Northwest forests

By using historical remote-sensing data, researchers developed maps of annual forest change between 1984 and 2007. These maps, with a resolution ...

Principal Investigator : Warren Cohen

Inventory and Monitoring2010PNW
Photo of Leaf scorch is a drought symptom in linden trees.  Joseph O'Brien, Forest Service
ID: 59
Model Assesses the Influence of Drought Stress on Forest Relative to Other Factors

Drought stress data added to a forest landscape disturbance and succession model show that length of drought is more important than severity

Principal Investigator : Eric J. Gustafson

Inventory and Monitoring
Resource Management and Use
2012NRS
Photo of
ID: 114
Monitoring Network Saves Wealth of Data on American Bird Populations

Network archives data sets to address future large-scale conservation issues

Principal Investigator : C. J. Ralph

Resource Management and Use
Wildlife and Fish
Inventory and Monitoring
2012PSW
Photo of
ID: 271
National Land Cover Database (NLCD) 2011 percent tree canopy product

Forest Inventory and Analysis Program scientists throughout the country are collaborating with the Remote Sensing Applications Center to develop ...

Principal Investigator : Michael J. Wilson

Inventory and Monitoring2010RMRS
Photo of Standardized sampling of sagebrush habitats can inform management actions for sagebrush obligates like greater sage-grouse. Mary Rowland, USDA Forest Service
ID: 758
National Technical Guide Provides a Foundation for Monitoring Wildlife Habitat on National Forests

This technical guide offers comprehensive guidance for habitat monitoring on public lands in the United States, particularly national forests an ...

Principal Investigator : Mary M. Rowland

Wildlife and Fish
Inventory and Monitoring
2014PNW
Photo of
ID: 298
Nationally consistent approach to forest inventory across the United States

The passage of the 1998 Farm Bill led to the development of a nationally consistent approach to forest inventory across the United States.These ...

Principal Investigator : Tom Brandeis

Inventory and Monitoring2010SRS
Photo of These maps depict the distribution of 12 tree species across the state of New York. The maps show where these trees do not occur (gray), occasionally occur (pale green), are a minor component (medium green), are a major component (dark green), or are the dominant species (black) in the forest, as determined by that species' total basal area. Rachel Riemann, USDA Forest Service
ID: 630
Nationwide Datasets of Tree Species Distributions Created

Geospatial datasets of the relative abundance and distribution of individual tree species have been created by Forest Service scientists for 323 ...

Principal Investigator : Barry T. (Ty) Wilson

Inventory and Monitoring2014NRS
Photo of Douglas-fir killed by sprucebud worm on the Malheur National Forest in eastern Oregon. Dave Powell, USDA Forest Serivce
ID: 664
Net Forest Carbon in Oregon Increased Slightly During the Last Decade

Gains in forest carbon through tree growth and afforestation in the Pacific Northwest were offset by fire, insects, cutting, and deforestation.

Principal Investigator : Andrew Gray

Inventory and Monitoring2014PNW
Photo of Book cover. USDA Forest Service
ID: 653
New Book Documents Contributions from Forest Service's Long-Term Research Sites

From the role of fire in forests to responses to clearcutting controversies, from the discovery of acid rain to the development of biogeochemica ...

Principal Investigator : Susan Stout

Invasive Species
Inventory and Monitoring
Outdoor Recreation
Wildland Fire and Fuels
Water, Air, and Soil
Resource Management and Use
Wildlife and Fish
2014NRS
Photo of English ivy is a common invasive woody climbing plant. David J. Moorehead, University of Georgia
ID: 736
New Database Will Help Identify Potentially Invasive Plants in the United States

In order to examine parameters of plant invasion success in the United States, scientists with the Forest Service's Eastern Forest Environmental ...

Principal Investigator : Qinfeng Guo

Invasive Species
Resource Management and Use
Inventory and Monitoring
2014SRS
Photo of IITF scientists and collaborators mapped 40 forest types plus urban and agricultural areas for Trinidad and Tobago in the first country-wide map of tropical forest tree communities and land cover.  Eileen H. Helmer, Forest Service
ID: 21
New Study Leads the Way to Detailed Mapping of Tropical Rain Forest Types

Tropical tree communities mapped for Trinidad and Tobago with satellite imagery

Principal Investigator : Eileen H. Helmer

Wildlife and Fish
Inventory and Monitoring
2012IITF
Photo of Mean difference in tree-level carbon stocks between the Component Ratio Method and Jenkins' approach for tree species in the conterminous U.S. Forest Service
ID: 38
New Tree Volume and Biomass Estimation Procedures Implemented for the Yearly U.S. National Greenhouse Gas Inventory

New procedures have improved the accuracy, reliability, and transparency of the U.S. National Greenhouse Gas Inventory of U.S. forests and bioma ...

Principal Investigator : Christopher W. Woodall

Inventory and Monitoring2012NRS
Photo of Soil sample. Thomas J. Brandein, Forest Service
ID: 593
Nitrogen and Phosphorus Content in Forest Floor Litter is Elevated in a Tropical Landscape Recovering from Deforestation

Fallen leaf chemistry provides a window into the various and often complex factors affecting the availability of nutrients to trees. Both nitrog ...

Principal Investigator : Eileen H. Helmer

Inventory and Monitoring2014IITF
Photo of Image of the mapping tool as viewed online through the San Juan ULTRA website http://sanjuanultra.org/.  Tischa Munoz, USDA Forest Service
ID: 459
Online Mapping Tool Helps Identify Green Areas for Sustainability Planning in San Juan

The tool also allows multiple stakeholders in the city to deliberate and model multiple scenarios for green connectivity and their utility in ad ...

Principal Investigator : Tischa A. Munoz-Erickson

Inventory and Monitoring
Resource Management and Use
Water, Air, and Soil
2013IITF
Photo of Ecoregions of Pennsylvania color-coded by the levels of similarity found between overstory and understory tree species composition in the Pennsylvania Regeneration Study data of 2001-2005. Todd Ristau, USDA Forest Service
ID: 655
Pennsylvania Regeneration Study Assesses Overstory and Understory Tree Species Communities

In 2001, the Commonwealth of Pennsylvania and Forest Service's Forest Inventory & Analysis (FIA) program launched the "Pennsylvania Regeneration ...

Principal Investigator : Todd Ristau

Inventory and Monitoring2014NRS
Photo of IITF Wildlife Researcher demonstrating banding techniques for wren photographic key. Forest Service
ID: 29
Photographic Key Determines Age and Gender in Two Thryothorus Wrens From Nicaragua's Pacific Slope

A visual and metric aid to determining age and gender in tropical wrens

Principal Investigator : Wayne J. Arendt, PhD

Wildlife and Fish
Inventory and Monitoring
2012IITF
Photo of Photo of permanent study plot in 2007 immediately prior to timber harvest. Jack Butler, USDA Forest Service
ID: 701
Ponderosa Pine Understory Vegetation Recovers Quickly Following Timber Harvest

Creating and maintaining a healthy forest relies on the resiliency of understory vegetation. The understory vegetation is largely responsible fo ...

Principal Investigator : Jack L. Butler

Resource Management and Use
Inventory and Monitoring
Invasive Species
2014RMRS
Photo of
ID: 421
Posting of 2010 Southern Forest Inventory and Analysis (FIA) annual data

Decision-makers such as Congress, government agencies, and industry managers require current data on the state of the Nation's forests for effec ...

Principal Investigator : Ali Conner

Inventory and Monitoring
Resource Management and Use
2011SRS
Photo of Current (2000) and future (2080) distribution of Forest Inventory and Analysis plots predicted to be at high risk of spruce beetle infestation based on the Canadian Global Climate Change model predictions of future temperatures. Numbers in lower right corner indicate percentage of plots with increased spruce beetle risk.  Forest Service
ID: 138
Predicting Future Spruce Beetle Infestations

Scientists model the effects of increasing temperatures and forest stand conditions on the likelihood of spruce beetle infestation over time

Principal Investigator : R. Justin DeRose

Inventory and Monitoring2012RMRS
Photo of
ID: 270
Rangelands On The Edge

City and county planners across the US will have a new toolkit to better manage development encroachment into rangelands. The 'Rangelands on the ...

Principal Investigator : Cindy S. S. Swanson

Inventory and Monitoring2010RMRS
Photo of Eastern Threat Center collaborative research has detected regional shifts in the diversity of forest seedlings, indicating forest biodiversity change that enables robust and rapid monitoring of climate change effects.  Kevin Potter, North Carolina State University
ID: 409
Rapid monitoring of climate change effects improves forest management

Climate change and other threats are likely to alter the composition of forests as species die out in some areas and move into others, which cou ...

Principal Investigator : Southern Research Station

Inventory and Monitoring2011SRS
Photo of The brownish areas are oak decline sites/trees. Dale Starkey, Forest Service
ID: 145
Red Oak Species Is Especially Vulnerable to Drought Events

Oak decline and mortality under periodic regional drought in the Ozark Highlands of Arkansas and Missouri

Principal Investigator : Marty Spetich

Inventory and Monitoring2012SRS
Photo of Forests of the Northern United States uses more than 100 maps, graphs, and tables to summarize current conditions and recent trends for the 172 million acres of forest land in the 20 States that comprise the U.S. North. Forest Service
ID: 53
Report Details Trends and Current Conditions for Northern Forests

Overarching issues include the interaction of forests and people, managing invasive species, sustaining biodiversity, and sustaining capacity fo ...

Principal Investigator : Stephen R. Shifley

Inventory and Monitoring
Outdoor Recreation
Resource Management and Use
Water, Air, and Soil
Wildland Fire and Fuels
Wildlife and Fish
2012NRS
Photo of Climate change risk matrix for forest ecosystem carbon pools in the US. Likelihood of change in carbon stocks is based on the coefficient of variation of median forest carbon stock densities among K�ppen-Geiger climate regions (i.e., x-axis) based on the national forest inventory plot network. Size of carbon stocks are based on the US National Greenhouse Gas Inventory (i.e., y-axis). Societal response (e.g., immediate adaptive response or periodic monitoring) to climate change events depends on the size and relative likelihood of change in stocks. Year 2100 projections are based on linear extrapolations of current carbon stocks and imputing current median carbon pool densities by climate region to projected future climate regions for calculation of coefficients of variation. The soil organic carbon pool exhibits the highest variability among climate regions and therefore may be most affected by climate change or climate change induced disturbance events. In contrast, the dead wood pool has a relatively small stock with low variability among climate regions. Explicit climate change effects are not incorporated into this matrix as they represent a number of complex feedbacks both between stocks (e.g., live aboveground biomass transitioning to the dead wood pool) and the atmosphere (e.g., forest floor decay). USDA Forest Service.
ID: 508
Risk Matrix Highlights Knowledge Gaps in Forest Carbon Stocks

Forest Service scientists propose a basic approach to assess global change risks to forest carbon stocks in the U.S., which builds on the curren ...

Principal Investigator : Christopher W. Woodall

Inventory and Monitoring2013NRS
Photo of U.S. forests, such as this bottomland hardwood stand, are susceptible to climate change. Paul Bolstad, University of Minnnesota
ID: 740
Science in supports of the National Climate Assessment

A synthesis of research findings provided the foundation for the analysis of climate change on forest conditions, land use, and forest carbon in ...

Principal Investigator : James Vose

Resource Management and Use
Water, Air, and Soil
Inventory and Monitoring
2014SRS
Photo of Forest floor litter and duff measurements for eight forest types along elevation gradient in northeastern Puerto Rico. Asterisks indicate significant difference between litter and duff biomass within forest type. Grizelle Gonz�lez, USDA Forest Service
ID: 457
Scientists Characterize Woody Debris to Assess Fuel Loads in Northeastern Puerto Rico

Forest Service scientists characterized the amounts of woody debris (coarse woody debris, fine woody debris, duff, and litter) for eight differe ...

Principal Investigator : Grizelle Gonzalez

Inventory and Monitoring
Water, Air, and Soil
Wildland Fire and Fuels
2013IITF
Photo of A Forest Service technician measures a snag in Alaska as part of the National Forest Inventory and Analysis Program. Jon Williams, USDA Forest Service
ID: 531
Scientists Develop the First Estimates of Aboveground Carbon Flux and Storage in Trees Within the National Forests of Alaska

While the Tongass National Forest had no detectable change in above-ground tree carbon, the Chugach National Forest had an average annual increa ...

Principal Investigator : Tara M. Barrett

Inventory and Monitoring2013PNW
Photo of Forest Service researchers measure a tree in an old-growth stand in The Bowl Research Natural Area in New Hampshire. Coeli Hoover, USDA Forest Service
ID: 465
Scientists Measure Carbon Storage in New England Old-Growth Forests

Managing forests to store carbon is one way to mitigate greenhouse gas emissions. Measuring carbon in old-growth forests helps managers understa ...

Principal Investigator : Coeli Hoover

Inventory and Monitoring
Resource Management and Use
2013NRS
Photo of San Juan watershed. Thomas Brandeis, USDA Forest Service
ID: 741
Scientists Quantify the Value of Ecosystem Services Provided by the San Juan Bay Estuary

A decade long study of the urban forests and land uses within the watershed of Puerto Rico's San Juan Bay Estuary quantified the value of ecosys ...

Principal Investigator : Tom Brandeis

Inventory and Monitoring2014SRS
Photo of Fires release large amounts of carbon to the atmosphere through combustion, and create even larger amounts of dead material that breaks down and is emitted over longer time frames. U.S. Fish and Wildlife Service
ID: 550
Scientists Study the Effects of Management and Natural Disturbance on Carbon Storage in National Forests and Rangelands

Researchers combined satellite-based maps with Forest Inventory and Analyses (FIA) plot data and other resources to develop the Forest Carbon Ma ...

Principal Investigator : Sean P. Healey

Inventory and Monitoring2013RMRS
Photo of Forest Service rangers and passive samplers in Desolation Wilderness. Forest Service
ID: 97
Sources of Air Quality in the Lake Tahoe Basin Analyzed

Scientists determine elevated concentrations of ambient ozone in the Lake Tahoe Basin are caused mainly by local emissions

Principal Investigator : Andrzej Bytnerowicz

Water, Air, and Soil
Inventory and Monitoring
2012PSW
Photo of Hemlock trees in the eastern U.S. have not yet been severely impacted by the hemlock woolly adelgid but the landscape may be at a tipping point. David Lee, USDA Forest Service
ID: 464
The Future of Hemlock Trees in the Eastern U.S. Remains Dicey

The arrival of the hemlock woolly adelgid, an invasive insect from Asia, threatens the stability and sustainability of hemlock in the eastern U. ...

Principal Investigator : R. Talbot Trotter, III

Invasive Species
Inventory and Monitoring
2013NRS
Photo of
ID: 418
The National Harvest and Utilization Program

The U.S. forest industry is a multibillion dollar business, providing jobs and economic value to local communities across the Nation. With incre ...

Principal Investigator : James Bentley

Inventory and Monitoring
Resource Management and Use
2011SRS
Photo of The Xylotron uses machine-visioning technology to identify wood species. John Hermanson, USDA Forest Service
ID: 585
The Xylotron: A Field-Deployable Machine-Vision Wood Identification System

The Xylotron is a machine-vision-based wood identification system that uses a custom-designed wood imaging device (the Xyloscope), image analysi ...

Principal Investigator : Alex C. Wiedenhoeft

Resource Management and Use
Wildlife and Fish
Inventory and Monitoring
2014FPL
Photo of
ID: 299
U.S. Invasive Plants Identified in Comprehensive Database

Scientists in SRS' Eastern Forest Environmental Threat Assessment Center are developing a database of the more than 4,000 plants introduced into ...

Principal Investigator : Qinfeng Guo

Inventory and Monitoring2010SRS
Photo of
ID: 222
Urban Tree Canopy Assessment Program

Despite millions of dollars spent each year by federal, state, and local governments on remote sensing datasets, decision makers sometimes still ...

Principal Investigator : Morgan Grove

Inventory and Monitoring2010NRS
Photo of A screen shot of the WaterViz visualization. USDA Forest Service
ID: 637
WaterViz for Hubbard Brook: A Water Cycle Visualization Tool

The WaterViz for Hubbard Brook is a new water-cycle visualization tool for creatively communicating water science to the public with realtime fo ...

Principal Investigator : Lindsey Rustad

Inventory and Monitoring
Water, Air, and Soil
2014NRS
Photo of Former cropped wetland restored to a wetland by the Southeastern Wetland Reserve Program. Joel Gramling, The Citadel
ID: 130
Wetlands Assessment Project Documents Outcomes of Conservation on Working Lands

Assessment offers managers a tool to improve project planning and assessment of wetland practices on working lands in the South and elsewhere

Principal Investigator : Diane De Steven

Inventory and Monitoring2012SRS
Photo of Riparian wetland restoration in progress, with planted cypress trees. Forest Service
ID: 423
What do we need to know to conserve wetlands on working lands in the South

The Conservation Effects Assessment Project (CEAP) is a multi-agency effort to improve effectiveness of Farm Bill conservation programs by quant ...

Principal Investigator : Diane De Steven

Inventory and Monitoring2011SRS
Photo of Members of the Wilderness Fellows program. Forest Service
ID: 126
Wilderness Fellows Program Engages Youth in Federal Land Management

Program helps agencies develop a baseline assessment of wilderness character and integrate that character in wilderness planning, management, an ...

Principal Investigator : Peter B. Landres

Outdoor Recreation
Inventory and Monitoring
2012RMRS