A5081302885- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Wildlife-Road Interactions and Conservation
- Rangeland and Wildlife Management
- Avian ecology and behavior
- Migration and Labor Dynamics
- Regional Economics and Spatial Analysis
- Fish Ecology and Management Studies
- Animal and Plant Science Education
- Animal Behavior and Welfare Studies
- Bat Biology and Ecology Studies
- Isotope Analysis in Ecology
- Plant and animal studies
- Marine animal studies overview
- Zoonotic diseases and public health
- Archaeology and Natural History
- Ecology and Vegetation Dynamics Studies
- Marine and fisheries research
- Wildlife Conservation and Criminology Analyses
United States Geological Survey
2024
University of Maine
2024
University of Washington
2011-2023
University of Wyoming
2019-2022
University of California, Berkeley
2013-2016
As they have in response to past climatic changes, many species will shift their distributions modern climate change. However, due the unprecedented rapidity of projected some may not be able move ranges fast enough track shifts suitable climates and associated habitats. Here, we investigate ability 493 mammals keep pace with changes Western Hemisphere. We modeled velocities at which likely need climates. compared these are as a function dispersal distances frequencies. Across Hemisphere, on...
Significance Many plants and animals will need to move large distances track preferred climates, but fragmentation barriers limit their movements. We asked what degree where species be able suitable climates. demonstrate that only 41% of US natural land area is currently connected enough allow temperatures as the planet warms over next 100 years. If corridors allowed movement between all areas, living in 65% could current allowing them adjust 2.7 °C more temperature change. The greatest...
Abstract As the climate changes, human land use may impede species from tracking areas with suitable climates. Maintaining connectivity between of different temperatures could allow organisms to move along temperature gradients and continue occupy same space as warms. We used a coarse‐filter approach identify broad corridors for movement where influence is low while simultaneously routing present‐day spatial temperature. modified cost–distance algorithm model these tested data on current...
Policies aimed at reducing wildlife-related conflict must address the underlying causes
Abstract The obligate dependency of the common hippopotamus, Hippopotamus amphibius , on water makes them particularly vulnerable to hydrological disturbances. Despite threats facing this at-risk species, there is a lack information regarding H. spatial ecology. We used high-resolution tracking data male assess home range size, movement mode (e.g. residency and migratory movements), resource selection patterns. compared these results across seasons understand how variability influences...
Abstract Many ungulates migrate between distinct summer and winter ranges, identifying, mapping, conserving these migration corridors have become a focus of local, regional, global conservation efforts. Brownian bridge movement models (BBMMs) are commonly used to empirically identify seasonal corridors; however, they require location data sampled at relatively frequent intervals obtain robust estimate an animal's path. Fitting BBMMs sparse violates the assumption conditional random...
First posted November 12, 2020 For additional information, contact: Associate Director, Ecosystems Mission AreaU.S. Geological SurveyMail Stop 300, 12201 Sunrise Valley DriveReston, VA 20192 Across the western United States, many ungulate herds must migrate seasonally to access resources and avoid harsh winter conditions. Because these migration paths cover vast landscapes (in other words distances up 150 miles [241 kilometers]), they are increasingly threatened by roads, fencing,...
Abstract Management of animal populations requires spatially explicit knowledge movement corridors, such as those used during seasonal migrations. Global Positioning System (GPS) tracking data allow for mapping corridors from directly observed movements, but are absent many populations. We developed a novel statistical corridor modelling approach that predicts cost‐distance models fit to migration data. Unlike existing predictive approaches, this does not require the ad hoc transformation...