Filters: Tags: population decline (X) > Categories: Data (X)

Filters Date Range Past year (1) Past month (1) Past week (0) Past day (0) Custom range... To   Search Contacts Michael P Chenaille U.S. Geological Survey - ScienceBase M. Tim Tinker Brianne E Brussee Michael L Casazza More... Tag Types Theme (2) Place (2) Tag Schemes None (2) Common geographic areas (1) USGS (1) ISO 19115 Topic Category (2) USGS Thesaurus (1) Coastal and Marine Ecological Classification Standard (1) Marine Realms Information Bank (MRIB) keywords (1) View Results as: JSON ATOM CSV

Raven Observations near Greater Sage-Grouse Nests in the Great Basin and Bi-State Regions of the Western United States (2009 - 2019) These tables serve as input data for hierarchical models investigating interactions between raven density and Greater Sage-grouse nest success. Observations were recorded over an 11 year time period, spanning from 2009 through 2019. The model is run in JAGS via R, the code is publicly available via the U.S. Geological Survey's GitLab (O'Neil et al. 2023). We recommend not making any changes or edits to the tables unless the user is experienced with hierarchical modeling. References: O'Neil, S.T., Coates, P.S., Webster, S.C., Brussee, B.E., Dettenmaier, S.J., Tull, J.C., Jackson, P.J., Casazza, M.L., and Espinosa, S.P., 2023, Code for a hierarchical model of raven densities linked with sage-grouse nest survival... Categories: Data; Tags: Anthropogenic subsidies, California, Great Basin, Idaho, Nevada, All tags... bi-state, biota, conservation planning, decision support, density surface model, distance sampling, ecology, human impacts, native species, nest survival, population decline, predation, predator-prey, sagebrush, species distribution, species of concern, wildlife, Fewer tags Sea otter surveys from selected Western Aleutian Islands, Alaska and Bering Island, Russia between 1959-2015 The data table consists of a compilation of sea otter survey results from Bering Island, Russia and select Western Aleutian Islands conducted between 1959 and 2015. The counts were reduced to sea otters per kilometer of coastline for temporal comparability. A correction factor of 3.6 was applied to aerial survey totals to yield results comparable to skiff based surveys. The data table provides the island, year, mode (aerial, skiff, or ground), and shore length covered in each survey. Counts of independent otters and pups are provided if available. Total otters counted or calculated with the correction factor and the calculated linear density are also provided. Categories: Data; Tags: Adak Island, Alaska, Aleutian Islands, Amchitka Island, Alaska, Attu Island, Alaska, Bering Island, Russia, All tags... Clam Lagoon, Adak, Island, Alaska, Kagalaska Island, Alaska, Kiska Island, Alaska, Western Aleutian Islands, oceans, population and community ecology, population decline, population dynamics, sea otters, southwest Alaska, Fewer tags