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Found 1163 dataset(s) matching "National Wildlife Refuges".
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This study monitored soil surface elevation change from mangrove forests fertilized with nitrogen and phosphorus from 2018-2021. The mangroves selected at Ding Darling National Wildlife Refuge...
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This dataset contains results from long-term monitoring of breeding shorebirds on the Coastal Plain (1002 Area) of the Arctic National Wildlife Refuge, Alaska. Surveys were conducted during...
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In 2016, an invasive plant inventory of priority invasive plant species in priority areas was conducted at Farallon Island National Wildlife Refuge. Results from this effort will inform the...
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This data set includes 21 georeferenced and clipped versions of aerial photographs from July 22nd, 1988, taken over Baca National Wildlife Refuge. A georeferenced mosaic of the photographs is...
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This data set includes 7 georeferenced and clipped versions of aerial photographs from August 1960, taken over Monte Vista National Wildlife Refuge. A georeferenced mosaic of the photographs is...
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This data set includes 23 georeferenced and clipped versions of aerial photographs acquired September 29th and October 1st, 1953, over Baca National Wildlife Refuge. A georeferenced mosaic of the...
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These data provide grain-size measurements from sediment samples collected as part of the USGS DUring Nearshore Event eXperiment (DUNEX) site on Pea Island National Wildlife Refuge, NC. DUNEX is a...
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This geodatabase includes 4 polygon-based feature classes representing different scales and levels of detail: 1) Full spatial detail, over 16,000 polygons mapped to Group and Alliance level....
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In 2017, invasive plant species and area priorities for baseline inventory and early detection were identified for Marin Islands National Wildlife Refuge. Results from this effort will inform a...
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Analyses were conducted in 2025 to examine glaciolacustrine rhythmic laminations interpreted as annual layers (varves) in a sediment core collected from Great Swamp National Wildlife Refuge in...
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During 13-18 May, 2019, we censused red-footed boobies (Sula sula) at Kīlauea Point National Wildlife Refuge (KPNWR), Kauaʻi. To evaluate ground-based visual counts and assess variability among...
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The data included here were gathered to determine the effects of cattle grazing on wetland water quality in the Klamath National Wildlife Refuge in Oregon. Surface water samples from sites...
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This dataset includes the following measurements made over a xeric tall grass prairie in the southwest portion of Rocky Flats National Wildlife Refuge in 2011 and 2012: 1) half hourly eddy...
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This feature class or layer consists of polygon layers that delineate 29 vegetation communities which represent National Vegetation Classification Standard Groups. The map covers the public part...
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These relational tables represent data related to least auklet survival studies on St. George Island, Alaska, from 2003-2024. These data were collected using the Alaska Maritime National Wildlife...
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During 8-11 April, 13-18 May, and 1-7 July 2019, we censused Red-tailed Tropicbird (Phaethon rubricauda) and White-tailed Tropicbird (P. lepturus) nests in Kīlauea Point National Wildlife Refuge...
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Refuge staff must make annual decisions about what management actions to implement (e.g., fire, rest, mow, hand pull, chemical, biological, seed, irrigate) in order to improve the health of native...
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This study was initiated to provide baseline data and to determine the utility of stable isotope analysis to evaluate the foraging strategies of an opportunistic reptile predator. Stable isotope...
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This data release presents data that were collected as part of a larger effort to refine knowledge pertaining to the origin, composition, and seasonality of dissolved organic matter in lakes. This...
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This dataset contains the approximate location of 59 wetlands that were monitored as part of the U.S. Geological Survey (USGS) Amphibian Research and Monitoring Initiative (ARMI). Note, these...
