259 datasets found for "Population Density"
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Federal
Census_sum_15
Department of the Interior —
The GIS layer "Census_sum_15" provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra... -
Federal
Zooplankton, Benthos, Mysis, and fish diet data from northern Lake Huron in 2012
Department of the Interior —
These data consist of a multi-trophic, day vs. night, nearshore to offshore transect approach for data collection for this Cooperative Science and Monitoring... -
Federal
Lake Erie Pelagic Prey Fish Community Data, 2022-2024
Department of the Interior —
Since 2005, the U.S. Geological Survey - Great Lakes Science Center's Lake Erie Biological Station (LEBS) has participated in a collaborative, multiagency effort to... -
Federal
Ecological Model Support for the Western Everglades Restoration Project (WERP) Round Five, 2023
Department of the Interior —
Ecological models facilitate evaluation of alternative approaches to restore the Greater Everglades ecosystem. However, the provision of useful and accessible models... -
Federal
Cape Lookout, North Carolina 2012 National Wetlands Inventory Habitat Classification
Department of the Interior —
In the face of sea level rise and as climate change conditions increase the frequency and intensity of tropical storms along the north-Atlantic Coast, coastal areas... -
Federal
Western sandpiper diet composition in south San Francisco Bay, CA
Department of the Interior —
Diet composition can be influenced by age- and sex-related factors including an individual’s morphology, social status, and acquired skills; however, specialization... -
Federal
Lake Ontario Spring (April) Prey Fish Bottom Trawl Survey, 1978-2025
Department of the Interior —
This data release includes Lake Ontario fish data from the April or spring prey fish bottom trawl survey, conducted by multiple agencies from 1978 through 2025.This... -
Federal
LANDFIRE Remap 2016 Existing Vegetation Type (EVT) HI
Department of the Interior —
LANDFIRE's (LF) Existing Vegetation Type (EVT) represents the current distribution of the terrestrial ecological systems classification developed by NatureServe for... -
Federal
LANDFIRE 2016 Remap Existing Vegetation Type (EVT) Micronesia
Department of the Interior —
LANDFIRE's (LF) 2016 Remap (Remap) Existing Vegetation Type (EVT) represents the current distribution of the terrestrial ecological systems classification developed... -
Federal
Foothill Yellow-Legged Frog (Rana boylii) Monitoring and Assessment Data from the Trinity River, California (2013-2017)
Department of the Interior —
A key objective of the Trinity River Restoration Program (TRRP) is maintaining and enhancing other wildlife populations through the restoration initiatives. For... -
Federal
Giving-up density experiments for two species of mammals in Florida, 2022
Department of the Interior —
Invasive predators pose a substantial threat to global biodiversity. Native prey species frequently exhibit naïveté to the cues of invasive predators, and this... -
Federal
Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in shallow, recently recharged ground water -- Input data set for orchards/vineyards (gwava-s_orvi)
Department of the Interior —
This data set represents the percent of orchards/vineyards land cover in the conterminous United States. The data set was used as an input data layer for a national... -
Federal
Anthropogenic Disturbances and Natural Variables in the Conterminous United States Linked to Catchments and Buffers of the National Hydrography Dataset Plus Version 2.1
Department of the Interior —
This USGS data release contains landscape variables representing anthropogenic disturbances to stream habitats and natural variables summarized within local and... -
Federal
Lake Erie Fish Community Data, 2013-2018
Department of the Interior —
Assessing the distribution and abundance of both predator and prey (forage) fish species is a cornerstone of ecosystem-based based fishery management, and supports... -
Federal
Census (Survey) Database Used for Demographic Analysis of Agassiz’s Desert Tortoise (Gopherus agassizii) on a 7.77 square km plot inside and outside the fenced Desert Tortoise Research Natural Area, Western Mojave Desert, USA, over a 34-year Period
Department of the Interior —
We developed a model for analyzing multi-year demographic data for long-lived animals and used data from a population of Agassiz’s desert tortoise (Gopherus... -
Federal
Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in shallow, recently recharged ground water -- Input data set for farm fertilizer (gwava-s_ffer)
Department of the Interior —
This data set represents the average annual nitrogen input from commercial fertilizer applied to agricultural lands, 1992-2001, in kilograms per hectare, in the... -
Federal
Great Basin Sage-Grouse Concentration Areas.
Department of the Interior —
Indices of habitat suitability and animal abundance provide useful proxy-based measures adaptive management (Coates et al. 2015a). Doherty et al. (in review) derived... -
Federal
1970's Land use data refined with 2000 population data to indicate new residential development for the conterminous United States
Department of the Interior —
This data set represents U.S. Geological Survey (USGS) historical Land Use and Land Cover (LULC) from the 1970's that has been refined with 2000 population density at... -
Federal
Annual California Sea Otter Census: 2019 Census Summary Shapefile
Department of the Interior —
The GIS shapefile Census_sum_2019 provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra... -
Federal
Wetlands of the Yellowknife Study Area, 1962-1965: Physical characteristics
Department of the Interior —
The Yellowknife Study Area (YSA), Northwest Territories, Canada, was established in 1961 by H. W. Murdy, U.S. Fish and Wildlife Service, for the study of wetland and...
259 datasets found for "Population Density"