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Occupied Range of the Yellowstone Grizzly Bear 2008-2022 Occupied Range of the Yellowstone Grizzly Bear 2008-2022
The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 2008-2022. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation.The boundary was delineated...
Firn Density and Stratigraphy Observations collected by the U.S. Geological Survey Glacier Project Firn Density and Stratigraphy Observations collected by the U.S. Geological Survey Glacier Project
This dataset contains observations of snow and firn density and stratigraphy from sites on Wolverine, Gulkana, Kennicott, and Kahiltna Glaciers. These sites span a broad range of climates that support glacier accumulation zones in the Alaska Region. Firn cores were collected regularly starting in 2016. Initially firn cores were only collected at Wolverine Glacier site EC. More recently...
Macroinvertebrates from Streams and Springs in the 1002 Region of the Arctic National Wildlife Refuge, Alaska, 2021 Macroinvertebrates from Streams and Springs in the 1002 Region of the Arctic National Wildlife Refuge, Alaska, 2021
This dataset includes tables related to macroinvertebrate collections in streams and springs of the 1002 region of the Arctic National Wildlife Refuge in northeastern Alaska. Macroinvertebrates were collected using kicknets and driftnets in April and August with the goal of comparing populations to those sampled from the same water bodies by the USGS in the 1970s.
2023 Release - North American Breeding Bird Survey Dataset (1966 - 2022) 2023 Release - North American Breeding Bird Survey Dataset (1966 - 2022)
The 1966-2022 North American Breeding Bird Survey (BBS) dataset contains avian point count data for more than 700 North American bird taxa (species, races, and unidentified species groupings). These data are collected annually during the breeding season, primarily in June, along thousands of randomly established roadside survey routes in the United States and Canada. Routes are roughly...
Morpholine Imprinted Atlantic Salmon Behavioral and Morphometric Data, 2018-2022 Morpholine Imprinted Atlantic Salmon Behavioral and Morphometric Data, 2018-2022
Subadult and smolt behavioral data were compiled by Ali Mokdad from Trevor Pitcher's lab at the University of Windsor, Ontario, Canada. Data are comprised of fish reactions in choice flume video data (attractance/avoidance) collected by Jeremy Kraus at Tunison Lab of Aquatic Science, August 2021 and February 2020 respectively. Atlantic salmon were exposed/not exposed to imprinting...
Estimated crop irrigation water use withdrawals in Willcox Groundwater Basin, Arizona for 2022 Estimated crop irrigation water use withdrawals in Willcox Groundwater Basin, Arizona for 2022
Observations of irrigated agricultural land within the Willcox Groundwater Basin in Arizona. Digitized field boundaries were used to locate crops for in situ verification twice in 2022; crop verification occurred first on May 17th and again on August 26th. Field boundaries were digitized from U.S. Department of Agriculture, National Agricultural Imagery Program County Mosaic 2021 imagery...