A5003176450- Species Distribution and Climate Change
- Wildlife Ecology and Conservation
- Ecology and Vegetation Dynamics Studies
- Animal Ecology and Behavior Studies
- Zoonotic diseases and public health
- Bat Biology and Ecology Studies
- Yersinia bacterium, plague, ectoparasites research
- Rangeland and Wildlife Management
- Viral Infections and Outbreaks Research
- Viral Infections and Vectors
- Parasite Biology and Host Interactions
- Primate Behavior and Ecology
- Satellite Image Processing and Photogrammetry
- Genetic diversity and population structure
- Climate change impacts on agriculture
- Climate Change, Adaptation, Migration
- Plant Pathogens and Fungal Diseases
- Plant and animal studies
- COVID-19 epidemiological studies
- Gallbladder and Bile Duct Disorders
- Peatlands and Wetlands Ecology
- Bird parasitology and diseases
- Economic and Financial Impacts of Cancer
- Yeasts and Rust Fungi Studies
- Human-Animal Interaction Studies
Missouri State University
2016-2025
Thomas Jefferson University
2023
University of Chicago
2020
Museum of Vertebrate Zoology
2013-2017
University of California, Berkeley
2013-2017
University of Kansas
2009-2014
University of Georgia
2011-2014
University of California System
2013
American Museum of Natural History
2009-2010
University of Washington
2002
Refugia have long been studied from paleontological and biogeographical perspectives to understand how populations persisted during past periods of unfavorable climate. Recently, researchers applied the idea contemporary landscapes identify climate change refugia, here defined as areas relatively buffered over time that enable persistence valued physical, ecological, socio-cultural resources. We differentiate historical views, characterize physical ecological processes create maintain...
Abstract With the accelerating pace of global change, it is imperative that we obtain rapid inventories status and distribution wildlife for ecological inferences conservation planning. To address this challenge, launched SNAPSHOT USA project, a collaborative survey terrestrial populations using camera traps across United States. For our first annual survey, compiled data all 50 states during 14‐week period (17 August–24 November 2019). We sampled at 1,509 trap sites from 110 arrays covering...
Intentional introductions of nonindigenous fishes are increasing globally. While benefits these easily quantified, assessments to understand the negative impacts ecosystems often difficult, incomplete, or absent. Grass carp (Ctenopharyngodon idella) was originally introduced United States as a biocontrol agent, and recent observations wild, diploid individuals in Great Lakes basin have spurred interest re-evaluating its ecological risk. Here, we evaluate impact grass using expert opinion...
Abstract SNAPSHOT USA is a multicontributor, long‐term camera trap survey designed to mammals across the United States. Participants are recruited through community networks and directly website application ( https://www.snapshot-usa.org/ ). The growing Snapshot dataset useful, for example, tracking wildlife population responses land use, cover, climate changes spatial temporal scales. Here we present 2021 dataset, third national US. Data were collected 109 arrays included 1711 sites. total...
Climate change refugia, areas buffered from climate relative to their surroundings, are of increasing interest as natural resource managers seek prioritize adaptation actions. However, evidence that refugia buffer the effects anthropogenic is largely missing. Focusing on climate-sensitive Belding's ground squirrel (Urocitellus beldingi), we predicted highly connected Sierra Nevada meadows had warmed less or shown precipitation over last century would have greater population persistence,...
Managing wildlife populations in the face of global change requires regular data on abundance and distribution wild animals, but acquiring these over appropriate spatial scales a sustainable way has proven challenging. Here we present from Snapshot USA 2020, second annual national mammal survey USA. This project involved 152 scientists setting camera traps standardized protocol at 1485 locations across 103 arrays 43 states for total 52,710 trap-nights effort. Most (58) were also sampled...
ABSTRACT Aim Geographic distributions of species are constrained by several factors acting at different scales, with climate assumed to be a major determinant broad extents. Recent studies, however, have challenged this statement and indicated that may not dominate among the governing geographic species. Here, we argue these results misleading due lack consideration area has been accessible Location North America. Methods We generated null for 75 American endemic 19 non‐endemic bird For each...
Plague, caused by the bacterium Yersinia pestis, is established across western North America, and yet little known of what determines broad-scale dimensions its overall range. We tested whether American distribution represents a composite individual host-plague associations (the "Host Niche Hypothesis"), or mammal hosts become infected only at sites overlapping ecological conditions appropriate for plague transmission maintenance "Plague Hypothesis"). took advantage novel data set...
Closely related, ecologically similar species often have adjacent distributions, suggesting competitive exclusion may contribute to the structure of some natural communities. In systems such as island archipelagos, where speciation is tightly associated with dispersal over oceanic barriers, prevent population establishment following inter-island and subsequent cladogenesis.
Abstract Climate refugia management has been proposed as a climate adaptation strategy in the face of global change. Key to this is identification these areas well an understanding how they are connected on landscape. Focusing meadows Sierra Nevada California, we examined multiple factors affecting connectivity using circuit theory, and determined patches have expected be affected by Connectivity surfaces varied depending upon underlying hypothesis, although meadow area elevation were...
Pleistocene climate cycles and glaciations had profound impacts on taxon diversification in the Boreal Forest Biome. Using population genetic analyses with multilocus data, we examined diversification, isolation, hybridization two sibling species of tree squirrels (Tamiasciurus douglasii Tamiasciurus hudsonicus) special attention to geographically genetically enigmatic T. hudsonicus Vancouver Island, Canada. The differentiated only about 500,000 years ago, Late Pleistocene. island is...
Much of the basic ecology Ebolavirus remains unresolved despite accumulating disease outbreaks, viral strains and evidence animal hosts. Because human epidemics have been linked to contact with wild mammals other than bats, traits shared by species that infected their phylogenetic distribution could suggest ecological mechanisms contributing spillovers. We compiled data on exposure in corresponding life-history traits, movement, diet, used boosted regression trees (BRT) identify predictors...
Summary Identifying the boundary of a species' niche from observational and environmental data is common problem in ecology conservation biology variety techniques have been developed or applied to model niches predict distributions. Here, we examine performance some pattern‐recognition methods as ecological models ( ENM s). Particularly, one‐class pattern recognition flexible seldom used methodology for modelling distributions presence‐only data. The development that perform comparably...
Abstract Aim The Indonesian island of Sulawesi is home to thousands endemic terrestrial animal species. Phylogeographical studies some these taxa revealed concordant distribution patterns (areas endemism; AoEs), suggestive a shared evolutionary or ecological mechanism driving divergence among various taxa. Generally, AoEs have been attributed Pleistocene marine incursions, geological fault zones and Sulawesi's history as an archipelago. We test, for the first time, hypothesis that population...
Abstract Aim The assembly of species into communities and ecoregions is the result interacting factors that affect plant animal distribution abundance at biogeographic scales. Here, we empirically derive for mammals to test whether human disturbance has become more important than climate habitat resources in structuring communities. Location Conterminous United States. Time Period 2010–2021. Major Taxa Studied Twenty‐five mammals. Methods We analysed data from 25 mammal recorded by camera...
Patterns in community composition across a landscape are the result of mechanistic responses and species interactions. Interactions between hosts parasites have additional complexity because contingency host presence interactions among parasites. To assess role environmental changes within parasite communities, we surveyed small mammals their fleas over dynamic elevational gradient Front Range Colorado, USA. Communities were characterized using several richness diversity metrics these...
We present a review of the scientific research needs for water sustainability Mekong River. One world's longest rivers, millions depend daily on their food security and livelihoods, but river is experiencing dramatic modifications, including extensive hydropower development. The 12 challenges themes presented here were identified by diverse interdisciplinary working group 24 scientists with expertise in broad range disciplines relevant to both physical social dimensions sustainability,...
Abstract Island biogeography theory (IBT) explains and estimates large-scale ecological patterns among islands isolated habitat patches. Specifically, IBT predicts that the number of species per patch differs as a function area isolation result local colonization extinction. Accurate richness are essential for testing predictions IBT, but differences in detectability can lead to bias empirical data. Hierarchical community models correct imperfect detection by leveraging information from...