Annual snowshoe hare track counts conducted in late winter/early spring in eastern Gates of the Arctic National Park near Wiseman, Alaska, central Brooks Range, Alaska.

Spreadsheets containing raw and summary data collected on diameter at point of browse by snowshoe hares in eastern Gates of the Arctic National Park and the Middle Fork Koyukuk River valley.

This dataset contains three field seasons of snow-wildlife observations conducted at 707 sites from January 2021 to March 2023 in Washington and Alaska, spanning a broad range of snow conditions. Relatively fresh tracks (usually <24 h) of common large mammal predators (bobcats, coyotes, cougars, and wolves) and their ungulate prey (caribou, Dall sheep, moose, mule deer, and white-tailed deer) were investigated to determine how snow affects predator-prey interactions. The track sink depth and dimensions (width and length) of three consecutive footprints were measured from one individual. Age class was recorded for moose based either on visual confirmation of an individual creating snow tracks or based on track dimensions. The ability to differentiate age classes for smaller ungulates was more uncertain, so age classes for deer, caribou, or sheep were not specified. Animal gait was identified using a simple classification scheme. Data also include animal species, snow density, hardness, total ice, surface temperature, and vegetation type. To best capture snow hardness, surface penetrability and hand-hardness were measured throughout the snowpack. The data are provided in comma-separated values (CSV) format.

This dataset contains three field seasons of snow-wildlife observations conducted at 707 sites from January 2021 to March 2023 in Washington and Alaska, spanning a broad range of snow conditions. Relatively fresh tracks (usually <24 h) of common large mammal predators (bobcats, coyotes, cougars, and wolves) and their ungulate prey (caribou, Dall sheep, moose, mule deer, and white-tailed deer) were investigated to determine how snow affects predator-prey interactions. The track sink depth and dimensions (width and length) of three consecutive footprints were measured from one individual. Age class was recorded for moose based either on visual confirmation of an individual creating snow tracks or based on track dimensions. The ability to differentiate age classes for smaller ungulates was more uncertain, so age classes for deer, caribou, or sheep were not specified. Animal gait was identified using a simple classification scheme. Data also include animal species, snow density, hardness, total ice, surface temperature, and vegetation type. To best capture snow hardness, surface penetrability and hand-hardness were measured throughout the snowpack. The data are provided in comma-separated values (CSV) format.

Dataset includes weekly individual snowshoe hare observations on coat color molt phenology collected in field study site near Seeley Lake MT, USA. Data were analyzed and results published at: Mills L.S., Zimova M., Oyler J., Running S., Abatzoglou J.T., Lukacs P.M. 2013 Camouflage mismatch in seasonal coat color due to decreased snow duration. Proceedings of the National Academy of Sciences of the United States of America 110(18), 7360-7365. (doi:10.1073/pnas.1222724110).

Dataset includes weekly individual snowshoe hare observations on coat color molt phenology collected in field study site near Seeley Lake MT, USA. Data were analyzed and results published at: Mills L.S., Zimova M., Oyler J., Running S., Abatzoglou J.T., Lukacs P.M. 2013 Camouflage mismatch in seasonal coat color due to decreased snow duration. Proceedings of the National Academy of Sciences of the United States of America 110(18), 7360-7365. (doi:10.1073/pnas.1222724110).

This dataset includes data from late-March snow surveys and hourly digital camera images from two study areas within the Wrangell St Elias National Park, Alaska. These data comprise snow density, stratigraphy, and temperature profiles obtained by snow pits; and snow depth data obtained from transects between snow pits. Daily snow depths, adjacent to each pit, were derived from hourly camera images of snow stakes placed adjacent to each pit. These data were collected to constrain and validate a physically-based, spatially-distributed snow evolution model used to simulate snow conditions in Dall sheep habitat. The two study areas are both located within the Jacksina Park Unit (JPU). The first study area, surveyed in 2017, included the northern end of Jaeger Mesa and an area near Rambler mine in the North East of the JPU. The second study area, surveyed in 2018, was within the upper watershed of Pass Creek in the North of the JPU. The remote cameras operated from September 2016 to August 2017 on Jaeger Mesa/Rambler Mine and from September 2017 to July 2018 at Pass Creek.

Transects and plot locations for the Snowshoe Hare Ecology Project, Wiseman, Alaska. Data columns: SITE : chr "Gold" "Gold" "Gold" "Gold" ... TRANSECT : chr "B" "B" "C" "C" ... PLOT : int 10 12 9 12 13 15 16 18 1 2 ... STAKE : chr "North" "North" "South" "North" ... POINTTYPE : chr "Center point" "Center point" "Center point" "Center point" ... ISEXTANT : logi TRUE TRUE TRUE TRUE TRUE TRUE ... ISCURRENTG: chr "Yes" "Yes" "Yes" "Yes" ... ISOUTPARK : chr "Yes" "Yes" "Yes" "Yes" ... UNITCODE : chr "GAAR" "GAAR" "GAAR" "GAAR" ... REGIONCODE: chr "AKR" "AKR" "AKR" "AKR" ... CREATEDATE: chr "6/12/2024" "6/12/2024" "6/12/2024" "6/12/2024" ... CREATEUSER: chr "D. DiFolco" "D. DiFolco" "D. DiFolco" "D. DiFolco" ... EDITDATE : chr "6/12/2024" "6/12/2024" "6/12/2024" "6/12/2024" ... MAPMETHOD : chr "GNSS: Mapping Grade" "GNSS: Mapping Grade" "GNSS: Mapping Grade" "GNSS: Mapping Grade" ... SOURCEDATE: chr "6/12/2024" "6/12/2024" "6/12/2024" "6/12/2024" ... XYACCURACY: chr ">=5cm and <50cm" ">=5cm and <50cm" ">=5cm and <50cm" ">=5cm and <50cm" ... PHOTO_N : chr "" "" "" "" ... PHOTO_S : chr "" "" "" "" ... PHOTO_E : logi NA NA NA NA NA NA ... PHOTO_W : chr "" "" "" "" ... PHOTO_O : chr "" "" "" "" ... Latitude : num 67.5 67.5 67.5 67.5 67.5 ... Longitude : num -150 -150 -150 -150 -150 ...

Dataset of snowshoe hare pellet counts across quadrats and sites for surveys conducted 1990-2024 at Tetlin National Wildlife Refuge. Raw data is used to monitor hare density on the refuge over time. For a record of data manipulation for data tidying, see ServCat reference: 187751.