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Found 176 dataset(s) matching "stratified random sampling".
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We conducted ground-based surveys at 589 randomly selected 16-ha plots on the Yukon-Kuskokwim Delta, Alaska during 2015-2016. The plots were selected using a stratified random sampling plan in an...
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The geodatabase represents the sampling design used to meet the project's purpose. The sampling design relies upon systematic sampling for smaller parks (LEWI and SAJH) and spatially balanced,...
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This study was designed to collect college student victimization data to satisfy four primary objectives: (1) to determine the prevalence and nature of campus crime, (2) to help the campus...
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Benthic survey data provided in this collection of datasets are from three (3) distinct regions along the Florida reef tract; 1) Dry Tortugas, 2) Florida Keys from Key West north to Miami, and 3)...
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The data described here result from coral bleaching surveys across the Hawaiian Archipelago from August 20 to December 7, 2019. The data provide information on live coral cover and the percentage...
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This Annual NLCD Reference Data Product includes the collection of an independent dataset of 8,360 30-meter by 30-meter samples across the Conterminous United States (CONUS). The Annual NLCD...
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To contribute to messaging and management that advances wildlife conservation and responsible stewardship of interfacing human and marine ecosystems, a multi-disciplinary research team led by...
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We used a stratified-random sampling approach to estimate the total abundance of Wedge-tailed Shearwater (Ardenna pacifica) nest sites across Kīlauea Point National Wildlife Refuge (KPNWR),...
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This data release contains spatial and tabular products that provide a multi-scale, continuous North American Bat Monitoring Program (NABat) master sample grid surface and a suite of...
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The Domestic Violence Research Project was a pilot study designed to examine the dynamics of domestic violence within two of the ten police districts that comprise the city of Boston. The ...
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The sampling locations provided here were selected as a two-stage Generalized Random Tessellation Stratified (GRTS) sample (Stevens & Olsen 2004). The first stage of the GRTS draw used a...
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The sampling locations provided here were selected as a two-stage Generalized Random Tessellation Stratified (GRTS) sample (Stevens & Olsen 2004). The first stage of the GRTS draw used a...
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The benthic images provided here are part of the CRCP-funded project aimed at establishing baseline Rapid Ecological Assessment (REA) surveys for coral reef benthic cover and composition at...
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The data described here result from benthic coral demographic surveys within belt transects of specified length and width for two life stages (juveniles and adults) in Fagaʻalu, American Samoa in...
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Jurisdictional managers have expressed concerns that nutrients from the village of Vatia, Tutuila, American Samoa, are having an adverse effect on the adjacent coral reef ecosystem. Excess...
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This sampling frame is a set of grid-based, finite-area frames spanning the offshore areas surrounding Mexico, and is intended for use with the North American Bat Monitoring Program (NABat). A...
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This sampling frame is a set of grid-based, finite-area frames spanning the offshore areas surrounding Hawaii, and is intended for use with the North American Bat Monitoring Program (NABat). A...
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This sampling frame is a set of grid-based, finite-area frames spanning the offshore areas surrounding the Caribbean, and is intended for use with the North American Bat Monitoring Program...
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This sampling frame is a set of grid-based, finite-area frames spanning the offshore areas surrounding the continental United States (CONUS), and is intended for use with the North American Bat...
