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Studies utilizing Global Positioning System (GPS) telemetry rarely result in 100% fix success rates (FSR). Many assessments of wildlife resource use do not account for missing data, either assuming data loss is random or because a lack of practical treatment for systematic data loss. Several studies have explored how the environment, technological features, and animal behavior influence rates of missing data in GPS telemetry, but previous spatially explicit models developed to correct for sampling bias have been specified to small study areas, on a small range of data loss, or to be species-specific, limiting their general utility. Here we explore environmental effects on GPS fix acquisition rates across a wide...
Types: Citation;
Tags: Arizona,
Bias,
Bias correction,
California,
Collarsl, All tags...
Cougar,
Data Model,
Detection,
Fix Success Rate,
GPS,
Global Positioning Systems,
Home range,
Landforms,
Mountain lion,
Nevada,
Northern Arizona,
Observation Model,
Positive openness,
Probability,
Puma concolor,
Python script,
Southwestern USA,
Telemetry,
Terrain measure,
Terrestrial,
Topographic exposure,
USA,
USGS Science Data Catalog (SDC),
United States,
Utah,
Viewshed,
Wildlife, Fewer tags
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We conducted an analysis of global forest cover to reveal that 70% of remaining forest is within 1 km of the forest’s edge, subject to the degrading effects of fragmentation. A synthesis of fragmentation experiments spanning multiple biomes and scales, five continents, and 35 years demonstrates that habitat fragmentation reduces biodiversity by 13 to 75% and impairs key ecosystem functions by decreasing biomass and altering nutrient cycles. Effects are greatest in the smallest and most isolated fragments, and they magnify with the passage of time. These findings indicate an urgent need for conservation and restoration measures to improve landscape connectivity, which will reduce extinction rates and help maintain...
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