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Population fragmentation compromises population viability, reduces a species ability to respond toclimate change, and ultimately may reduce biodiversi ty. We studied the current state and potential causes offragmentation in grizzly bears over approximat ely 1,000,000 km of western Canada, the northern United States(US), and southeast Alaska. We compiled much of our data from projects undertaken with a variety of researchobjectives including population estimation and trend, landscape fragmentation, habitat selection, vital rates, andresponse to human development. Our prim ary analytical techniques stemmed from genetic analysis of 3,134 bears,supplemented with radiotelemetry data from 792 bears. We used 15 locus microsatellite...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Document,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
LCC Network Science Catalog,
Regional & county planners, All tags...
State agencies,
completed,
environment, Fewer tags
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Fragmentation is a growing threat to wildlife worldwide and managers need solutions to reverseits impacts on species’ populations. Populations of grizzly bears (Ursus arctos), often considered an umbrellaand focal species for largemammal conservation, are fragmented by human settlement and major highways inthe trans-border region of southern British Columbia, northern Montana, Idaho, and northeasternWashington. To improve prospects for bear movement among 5 small fragmented grizzly bearsubpopulations, we asked 2 inter-related questions: Are there preferred linkage habitats for grizzly bearsacross settled valleys with major highways in the fragmented trans-border region, and if so, could we predictthem using a combination...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Document,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
LCC Network Science Catalog,
State agencies, All tags...
completed,
environment,
product, Fewer tags
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This project will focus on analysis of 10 years of GPS telemetry data for 60 grizzly bears across the threatened and fragmented trans-border grizzly bear subpopulations in the Cabinet, Yaak, Purcell, and Selkirk Mountain (Proctor et al. 2012) with a goal to identify areas of high quality core habitat and understand the ecological characteristics that underpin habitat use. We will use Resource Selection Function habitat-use models for partitioned by sex and in each of 3 seasons to capture the variation of bear habitat use. We will also work to integrate our results to inform wildlife and land managers on where to concentrate their management efforts by season to promote population health and resilience in both the...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: British Columbia,
Cabinet,
Connectivity,
Data Management and Integration,
Federal resource managers, All tags...
Goal 1: Maintain large, intact landscapes,
Goal 2: Conserve landscape connectivity,
Grizzly Bear,
Grizzly Bears,
ID-1,
Idaho,
Idaho,
LCC Network Science Catalog,
Land Use Change,
MT-1,
MT-1,
MT-1,
MT-1,
Monitoring,
Montana,
Montana,
Montana,
Montana,
Montana,
Population & Habitat Evaluation/Projection,
Project,
Publication,
Purcell,
Purcell,
Purcell,
Purcell,
Report,
Riparian Areas,
Rocky Mountain,
Selkirk Mountains,
Selkirk Mountains,
Selkirk Mountains,
State agencies,
Sub-Alpine,
WA-5,
WA-5,
WA-5,
WA-5,
Washington,
Washington,
Washington,
Washington,
Washington,
Woodland,
Yaak,
Yaak,
Yaak,
Yaak,
and Selkirk Mountain,
completed,
environment, Fewer tags
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Abstract (from ScienceDirect): Climate change is altering the suitable habitat and phenology of plant species around the world, with cascading effects on people and animals reliant upon those plant species as food sources. Huckleberry (Vaccinium membranaceum) is one of these important food-producing plant species that grows in the Pacific Northwest of North America. Here, we modelled how the range and phenology of huckleberry may change as the climate changes. To address this question, we first utilized citizen scientist observations, long-term plot data, and gridded climate data to identify climate variables that best predicted the current bioclimatic niche and the timing of flowering and fruit ripening of huckleberry....
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Final report describing “Core Habitat Identification and Fine Scale Habitat Use of Grizzly Bears in the US Northern Rockies and Southern Canada” project.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
LCC Network Science Catalog,
Report,
State agencies, All tags...
completed,
environment,
product, Fewer tags
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