26 Works

Fish carcass deposition to suppress invasive lake trout through hypoxia causes limited, non-target effects on benthic invertebrates in Yellowstone Lake

Michelle Briggs, Lindsey Albertson, Dominique Lujan, Lusha Tronstad, Hayley Glassic, Christopher Guy & Todd Koel
Invasive species can have negative effects on native biodiversity and ecosystem function, and suppression is often required to minimize the effects. However, management actions to suppress invasive species may cause negative, unintended effects on non-target taxa. Across the USA, lake trout (Salvelinus namaycush) are invasive in many freshwater ecosystems, reducing native fish abundance and diversity through predation and competition. In an integrated pest management approach, lake trout embryos in Yellowstone Lake, Wyoming are suppressed by...

Limited increases in savanna carbon stocks over decades of fire suppression

Yong Zhou, Jenia Singh, John Butnor, Corli Coetsee, Peter Boucher, Madelon Case, Evan Hockridge, Andrew Davies & Carla Staver
Savannas cover a fifth of the land surface and contribute a third of terrestrial net primary production, accounting for three quarters of global area burned and over half of global fire-driven carbon emissions. Fire suppression and afforestation have been proposed as tools to increase carbon sequestration in these ecosystems. A robust quantification of whole-ecosystem carbon storage in savannas is lacking, however, especially under altered fire regimes. Here, we provide the first direct estimates of whole-ecosystem...

Zooplankton in Upper Willamette Reservoirs, 2015

Christina Murphy, Amanda Pollock, Angela Strecker & Sherri Johnson
Samples targeting crustacean zooplankton were collected from 3 upper Willamette Basin reservoirs during May-August 2015. Van Dorn sampling devices were used to collect samples at discrete depths from Fall Creek Reservoir, Lookout Point Reservoir, and Hills Creek Reservoir. Zooplankton samples were collected during daytime and nighttime corresponding with the new moon phase to evaluate zooplankton diel migration in these reservoirs. Zooplankton were visually identified using a microscope and the quantity found at each depth was...

Keithly Fire Fuel and Fuel Consumption

, Andrew T. Hudak, Joseph C. Restaino, Michael Billmire, Nancy H. F. French, Roger D. Ottmar, Bridget Hass, Kyle Zarzana, Tristan Goulden & Rainer Volkamer
Data Overview Mapped attributes: Fuel consumption derived from ALS data Post-fire fuel load derived from ALS data Pre-fire fuel load derived from ALS data Fuel consumption derived from FCCS data Post-fire fuel load derived from FCCS data Pre-fire fuel load derived from FCCS data Supplements: ALS data extent Keithly fire perimeter Keithly AOI fire perimeter Description Landscape scale estimates of pre-fire fuel load and fuel consumption are valuable resources for land managers and scientists. We...

Genome-scale phylogeography resolves the native population structure of the Asian longhorned beetle, Anoplophora glabripennis (Motschulsky)

Mingming Cui, Yunke Wu, Marion Javal, Isabelle Giguère, Géraldine Roux, Jose Andres, Melody Keena, Juan Shi, Baode Wang, Evan Braswell, Scott Pfister, Richard Hamelin, Amanda Roe & Ilga Porth
Human assisted movement has allowed the Asian longhorned beetle (ALB, Anoplophora glabripennis (Motschulsky)) to spread beyond its native range and become a globally regulated invasive pest. Within its native range of China and the Korean peninsula, human-mediated dispersal has also caused cryptic translocation of insects, resulting in population structure complexity. Previous studies used genetic methods to detangle this complexity but were unable to clearly delimit native populations which is needed to develop downstream biosurveillance tools....

Litter decomposition rates across tropical montane and lowland forests are controlled foremost by climate

Rebecca Ostertag, Carla Restrepo, Iveren Abeim, Roxana Aragón, Michelle Ataroff, Hazel Chapman, Belen Fadrique, Grizelle González, Achim Häger, Jürgen Homeier, Luis Daniel Llambí, Rikke Reese Næsborg, Laura Nohemy Poma López, Jorge Andrés Ramirez Correa, Klara Scharnagl, Conrado Tobón, James W. Dalling, Patrick H. Martin, Iveren Abiem, Shin‐Ichiro Aiba, Esteban Alvarez‐Dávila, Augusta Y. Cueva‐Agila, Romina D. Fernández, Sybil G. Gotsch, Carlos Iñiguez‐Armijos … & Cameron B. Williams
The “hierarchy of factors” hypothesis states that decomposition rates are controlled primarily by climatic, followed by biological and soil variables. Tropical montane forests (TMF) are globally important ecosystems, yet there have been limited efforts to provide a biome-scale characterization of litter decomposition. We designed a common litter decomposition experiment replicated in 23 tropical montane sites across the Americas, Asia, and Africa and combined these results with a previous study of 23 sites in tropical lowland...

Data and code from: A spectral three-dimensional color space model of tree crown health

William Monahan, Colton Arnspiger, Parth Bhatt, Zhongming An, Frank Krist, Tao Liu, Robert Richard, Curtis Edson, Robert Froese, John Steffenson, Tony Lammers & Randy Frosh
Protecting the future of forests in the United States and other countries depends in part on our ability to monitor and map forest health conditions in a timely fashion to facilitate management of emerging threats and disturbances over a multitude of spatial scales. Remote sensing data and technologies have contributed to our ability to meet these needs, but existing methods relying on supervised classification are often limited to specific areas by the availability of imagery...

Data in support of: Mega-disturbances cause rapid decline of mature conifer forest habitat in California

Zachary Steel, Gavin Jones, Brandon Collins, Rebecca Green, Alex Koltunov, Kathryn Purcell, Sarah Sawyer, Michele Slaton, Scott Stephens, Peter Stine & Craig Thompson
Mature forests provide important wildlife habitat and support critical ecosystem functions globally. Within the dry conifer forests of the western United States, past management and fire exclusion have contributed to forest conditions susceptible to increasingly severe wildfire and drought. We evaluated declines in conifer forest cover in the southern Sierra Nevada of California during a decade of record disturbance by using spatially comprehensive forest structure estimates, wildfire perimeter data, and the eDaRT forest disturbance tracking...

Long evolutionary history of an emerging fungal pathogen of diverse tree species in eastern Asia, Australia, and the Pacific Islands

Olga Kozhar, Mee-Sook Kim, Jorge Ibarra Caballero, Ned B. Klopfenstein, Phil Cannon & Jane Stewart
Emerging plant pathogens have been increasing exponentially over the last century. To address this issue, it is critical to determine whether these pathogens are native to ecosystems or have been recently introduced. Understanding the ecological and evolutionary processes fostering emergence can help to manage their spread and predict epidemics/epiphytotics. Using restriction site-associated DNA sequencing data, we studied genetic relationships, pathways of spread, and evolutionary history of Phellinus noxius, an emerging root-rotting fungus of unknown origin,...

Measurements of heavy metals in the moss Orthotrichum lyellii collected using community science in the Duwamish Valley, Seattle, Washington, U.S.A.

Sarah Jovan, Christopher Zuidema, Monika Derrien, Amanda Bidwell, Weston Brinkley, Robert Smith, Dale Blahna, Roseann Barnhill, Linn Gould, Alberto Rodríguez, Michael Amacher, Troy Abel & Paulina López
Heavy metals concentrations often vary at small spatial scales not captured by air monitoring networks, with implications for environmental justice in industrial-adjacent communities. Pollutants measured in moss tissues are commonly used as a screening tool to guide use of more expensive resources, like air monitors. We piloted a community science approach, engaging over 55 people from nine institutions, to map heavy metals using moss in two industrial-adjacent neighborhoods. Local youth led sampling of the moss...

Data from: Virus infection and host plant suitability affect feeding behaviors of cannabis aphid (Hemiptera: Aphididae), a newly described vector of potato virus Y

William Pitt, Lisa Kairy, Emily Villa, Vamsi Nalam & Punya Nachappa
Aphids are the most prolific vectors of plant viruses resulting in significant yield losses to crops worldwide. Potato virus Y (PVY) is transmitted in a non-persistent manner by 65 species of aphids. With the increasing acreage of hemp (Cannabis sativa L.) (Rosales: Cannabaceae) in the U.S, we were interested to know if the cannabis aphid (Phorodon cannabis Passerini) (Hemiptera: Aphididae) is a potential vector of PVY. Here, we conduct transmission assays and utilize the electrical...

DNA metabarcoding reveals broad woodpecker diets in fire-maintained forests

Andrew Stillman, Marcos Caiafa, Teresa Lorenz, Michelle Jusino & Morgan Tingley
Ecological disturbance is a key agent shaping the spatial and temporal landscape of food availability. In forests of western North America, disturbance from fire can lead to resource pulses of deadwood-associated arthropods that provide important prey for woodpeckers. Although the foraging strategies among woodpecker species often demonstrate pronounced differences, little is known about the ways in which woodpeckers exploit and partition prey in disturbed areas. In this study, we employed DNA metabarcoding to characterize and...

Data from: Climate affects the outbreaks of a forest defoliator indirectly through its tree hosts

Kyle Haynes, Andrew Liebhold, Jonathan Lefcheck, Randall Morin & Guiming Wang
Spatial variation in climate is known to affect the survival and reproduction of herbivorous forest insects and tree-species compositions, but the importance of indirect effects of climate on outbreaks of forest insects through its effects on forest composition is unclear. This data was compiled to examine the direct and indirect effects of climate, water capacity of the soil, host tree density, and non-host density on the spatial extent of Lymantria dispar outbreaks in the Eastern...

Random forest modelling of multi-scale, multi-species habitat associations within KAZA transfrontier conservation area using spoor data

Charlotte E. Searle, Zaneta Kaszta, Dominik T. Bauer, M. Kristina Kesch, Jane E. Hunt, Roseline Mandisodza-Chikerema, Michael V. Flyman, David W. Macdonald, Amy J. Dickman, Andrew J. Loveridge & Samuel A. Cushman
As landscape-scale conservation models grow in prominence, assessments of how wildlife utilise multiple-use landscapes are required to inform effective conservation and management planning. Such efforts should strive to incorporate multi-species perspectives to maximise value for conservation, and should account for scale to accurately capture species-environment relationships. We show that the random forest machine learning algorithm can be used to model large-scale sign-based data in a multi-scale framework. We used this method to investigate scale-dependent habitat...

Monitoring resistance and resilience using carbon trajectories: analysis of forest management-disturbance interactions

Thomas Seth Davis, Arjan Meddens, Camille Stevens-Rumann, Vincent Jansen, Jason Sibold & Mike Battaglia
A changing climate is altering ecosystem carbon dynamics with consequences for natural systems and human economies, but there are few tools available for land managers to meaningfully incorporate carbon trajectories into planning efforts. To address uncertainties wrought by rapidly changing conditions, many practitioners adopt resistance and resilience as ecosystem management goals, but these concepts have proven difficult to monitor across landscapes. Here, we address the growing need to understand and plan for ecosystem carbon with...

Data from: Tree growth responses to extreme drought after mechanical thinning and prescribed fire in a Sierra Nevada mixed-conifer forest, USA

Harold Zald, Chance Callahan, Matthew Hurteau, Marissa Goodwin & Malcolm North
An estimated 128 M trees died during the 2012-2016 California drought, largely in the southern Sierra Nevada Range. Prescribed burning and mechanical thinning are widely used to reduce fuels and restore ecosystem properties, but it is unclear if these treatments improve tree growth and vigor during extreme drought. This study examined tree growth responses after thinning, prescribed burning, and extreme drought at the Teakettle Experimental Forest, a historically frequent fire mixed-conifer forest in the southern...

Population genetics reveals bidirectional fish movement across the Continental Divide via an interbasin water transfer

Audrey Harris, Sara Oyler-McCance, Jennifer Fike, Matthew Fairchild, Christopher Kennedy, Harry Crockett, Dana Winkelman & Yoichiro Kanno
Interbasin water transfers are becoming an increasingly common tool to satisfy municipal and agricultural water demand, but their impacts on movement and gene flow of aquatic organisms are poorly understood. The Grand Ditch is an interbasin water transfer that diverts water from tributaries of the upper Colorado River on the west side of the Continental Divide to the upper Cache la Poudre River on the east side of the Continental Divide. We used single nucleotide...

Soil chemical variables improve models of understory plant species distributions

Nathan Roe, Mark Ducey, Thomas Lee, Olivia Fraser, Robert Colter & Richard Hallett
Aim To determine the importance of soil variables relative to more commonly used topo-climatic or remotely sensed variables in species distribution models (SDMs) for understory plants. Location White Mountain National Forest, New Hampshire, U.S.A. Methods We fit models for presence of 41 forest understory plant species across 158 plots using soil, topographic, and spectral predictors to determine the relative contribution of different predictor types. We determined (a) if the potential importance of soil variables is...

Genomics‐informed delineation of conservation units in a desert amphibian

Brenna Forester, Melanie Murphy, Chad Mellison, Jeffrey Petersen, David Pilliod, Rachel Van Horne, Jim Harvey & W. Chris Funk
Delineating conservation units (CUs, e.g., evolutionarily significant units, ESUs, and management units, MUs) is critical to the recovery of declining species because CUs inform both listing status and management actions. Genomic data have strengths and limitations in informing CU delineation and related management questions in natural systems. We illustrate the value of using genomic data in combination with landscape, dispersal, and occupancy data, to inform CU delineation in Nevada populations of the Great Basin Distinct...

Where have all the lions gone? Establishing realistic baselines to assess decline and recovery of African lions

Lara Sousa, Andrew Loveridge, Samuel Cushman, Żaneta Kaszta & David Macdonald
Aim: Predict empirically the current and recent-historical (c. 1970) landscape connectivity and population size of the African lion as a baseline against which to assess conservation of the species. Location: Continental Africa. Methods: We compiled historical records of lion distribution to generate a recent-historical range for the species. Historical population size was predicted using a generalised additive model. Resistant kernel and factorial least-cost path analyses were used to predict recent-historical landscape connectivity and compare this...

Annual biomass data (2001-2021) for southern California: above- and below-ground, standing dead, and litter

Charlie C. Schrader-Patton & Emma C. Underwood
Biomass estimates for shrubland-dominated ecosystems in southern California have, to date, been limited to national or statewide efforts which can underestimate the amount of biomass; are limited to one-time snapshots; or estimate aboveground live biomass only. We developed a consistent, repeatable method to assess four vegetative biomass pools from 2001-2021 for our southern California study area (totaling 6,441,208 ha), defined by the Level IV Ecoregions (Bailey 2016) that intersect with USDA Forest Service lands (Figure...

Fuel and fuel consumption maps for the Kaibab Plateau in 2012, 2019, and 2020

Benjamin C. Bright, Andrew T. Hudak, T. Ryan McCarley, Alexander Spannuth, Nuria Sánchez-López, Roger D. Ottmar & Amber J. Soja
These maps were created to estimate fuel loads across the Kaibab Plateau and fuel consumption across the 2019 Castle and Ikes Fires in northern Arizona, USA. For details on how these maps were created, see Bright et al. (2022) “Multitemporal lidar captures heterogeneity in fuel loads and consumption on the Kaibab Plateau”. SUMMARY: Airborne light detection and ranging (lidar) data were acquired across the Kaibab Plateau in northern Arizona, USA, in 2012 and 2019. To...

Restoration and fuel hazard reduction result in equivalent reductions in Crown fire behavior in dry conifer forests

Scott Ritter, Chad Hoffman, Michael Battaglia & Theresa Jain
Over the past several decades, the management of historically frequent-fire forests in the western U.S. has received significant attention due to the linked ecological and social risks posed by the increased occurrence of large, contiguous patches of high-severity fire. As a result, efforts are underway to simultaneously reduce potential fire and fuel hazards and restore characteristics indicative of historical forest structures and ecological processes that enhance the diversity and quality of wildlife habitat across landscapes....

Moths and butterflies on alien shores – global biogeography of non-native Lepidoptera

Richard Mally, Rebecca M. Turner, Rachael E. Blake, Gyda Fenn-Moltu, Cleo Bertelsmeier, Eckehard G. Brockerhoff, Robert J. B. Hoare, Helen F. Nahrung, Alain Roques, Deepa S. Pureswaran, Takehiko Yamanaka & Andrew M. Liebhold
Lepidoptera is a highly diverse, predominantly herbivorous insect order, with species transported to outside their native range largely facilitated by the global trade of plants and plant-based goods. Analogous to island disharmony, we examine invasion disharmony, where species filtering during invasions increases systematic compositional differences between native and non-native species assemblages, and test whether some families are more successful at establishing in non-native regions than others. We compared numbers of non-native, unintentionally introduced Lepidoptera species...

Tepee Fire Fuel and Fuel Consumption

, Andrew T. Hudak, Joseph C Restaino, Michael Billmire, Nancy H. F. French, Roger D. Ottmar, Bridget Hass, Kyle Zarzana, Tristan Goulden & Rainer Volkamer
Data Overview Mapped attributes: Fuel consumption derived from ALS data Post-fire fuel load derived from ALS data Pre-fire fuel load derived from ALS data Fuel consumption derived from FCCS data Post-fire fuel load derived from FCCS data Pre-fire fuel load derived from FCCS data Supplements: ALS data extent Tepee fire perimeter Prior forest fuel treatments Description Landscape scale estimates of pre-fire fuel load and fuel consumption are valuable resources for land managers and scientists. We...

Registration Year

  • 2022

Resource Types

  • Dataset


  • US Forest Service
  • Colorado State University
  • University of Idaho
  • United States Geological Survey
  • Michigan Tech Research Institute
  • California Department of Forestry and Fire Protection
  • University of California, Berkeley
  • University of Colorado Boulder
  • USDA Forest Service
  • University of Oxford