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Population fragmentation and inter-ecosystem movements of grizzly bears in western Canada and the northern United States. Conclusions: Grizzly bear population fragmentation corresponded to the presence of settled mountain valleys and major highways. In these disturbed areas, the inter-area movements of female bears was affected more than for male bears. Without female connectivity, small subpopulations of grizzly bears are not viable over the long term. Thresholds/Learnings: Females grizzlies reduced their movement rates drastically when settlement increased to >20% of a given area. In highly settled areas (>50% settlement), both sexes demonstrated similar reductions in movement. Synopsis: Researchers studied the current state and potential causes of population fragmentation in grizzly bears over western Canada, the Greater Yellowstone... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alberta, British Columbia, Canadian Rockies, Chilcotin Ranges and Fraser Plateau, Clear Hills and Western Alberta Upland, All tags... Coastal Western Hemlock, Columbia Mountains/Northern Rockies, Crown of the Continent/Greater Yellowstone Ecoregion, DNA, Demographic fragmentation, Land use configuration, Landscape fragmentation, Mackenzie and Selwyn Mountains, Middle Rockies, Montana, Peel River and Nahanni Plateaus, Sitka Spruce Forests, Skeena-Omineca-Central Canadian Rocky Mountains, Ursus arctos, Watson Highlands, Wyoming, Yukon-Stikine Highlands/Boreal Mountains and Plateaus, climate change, female connectivity, gene flow, grizzly bears, inter-area movement, meso-regional, microsatellites, population assignment,population fragmentation, population fragmentation, radio telemetry, species at risk, terrestrial mammals, Fewer tags Roosts and activity areas of Nyctinomops macrotis in northern Arizona Female big free-tailed bats Nyctinomops macrotis have been captured over water in northern Arizona in high elevation (> 2,400 m) forests and low elevation (1,500 m) desert scrub vegetation. We hypothesized that roost sites were in vertical walls of cliffs that were up to 25 km away from capture sites given the flight capability of these bats. During summer 2005 we captured eight females over ponds and attached radio transmitters to locate day roosts. We also identified locations used during nightly movements from 1 to 6 nights of radio tracking. We found three day roosts for seven bats; average distance (� SE) from a capture site to a roost was 12.1 � 3.0 km. Roosts were small maternity colonies used by ? four N.... Categories: Publication; Types: Citation, Journal Citation; Tags: Acta Chiropterologica, Arizona, Nyctinomops macrotis, big free-tailed bat, minimum convex polygon, All tags... movement, radio telemetry, roost, Fewer tags