This data release contains information on the seasonal diversity and abundance of arthropods collected at the Colville River Delta, Alaska, 2011-2012 and 2014-2107. Researchers with the US Geological Survey began studying the reproductive ecology of birds at a site on the Colville River near the Beaufort Sea coast in 2011. Researchers concurrently collected arthropods at 3-day intervals to understand the relationship between the seasonal abundance of arthropods and the reproductive output of insectivorous birds.

This data set contains information (in three tables) with numbers and biomass of invertebrates (primarily arthropods) collected in pitfall-trap arrays and sweep-net samples on a series of plots (n = 13 total) at one coastal and one interior study site on the Seward Peninsula in northwestern Alaska during the summers of 2015 and 2016. Associated data on the horizontal cover and height of shrub vegetation at the sampling points are presented in a fourth table.

This data package includes two child items with data from montane-nesting bird surveys in the Aniakchak National Monument and Preserve, Alaska. Child Item One: "Data and Photographs from the Inventory of Montane-nesting Birds in the Aniakchak National Monument and Preserve, Alaska". The data include (1) characteristics of bird survey sites, (2) vegetation classification at survey sites, (3) detections of all birds at survey sites, (4) behaviors of all birds at survey sites, (5) bird taxonomy and indication of conservation status, and (6) habitat information pertaining to survey site photographs. Child Item Two: "Geospatial Sampling Information for the Inventory of Montane-nesting Birds in the Aniakchak National Monument and Preserve, Alaska". The data include (1)"ANIA_original_sample_sitesAlb83" represents the nine 10-km X 10-km sample plots selected for the Aniakchak bird surveys, (2)"ANIA_sample_location_waypointsAlb83" is a summary of the 136 locations at which Aniakchak bird surveys were conducted, (3)"ANIA_sampled_plotsAlb83" represents the nine 10-km X 10-km sample plots inventoried during the Aniakchak bird surveys, and (4)"ANIA_savage_site_checksAlb83" represents unique sites within Aniakchak that were identified for site visits based on expert opinion.

This data package includes two child items with data from montane-nesting bird surveys in the Aniakchak National Monument and Preserve, Alaska. Child Item One: "Data and Photographs from the Inventory of Montane-nesting Birds in the Aniakchak National Monument and Preserve, Alaska". The data include (1) characteristics of bird survey sites, (2) vegetation classification at survey sites, (3) detections of all birds at survey sites, (4) behaviors of all birds at survey sites, (5) bird taxonomy and indication of conservation status, and (6) habitat information pertaining to survey site photographs. Child Item Two: "Geospatial Sampling Information for the Inventory of Montane-nesting Birds in the Aniakchak National Monument and Preserve, Alaska". The data include (1)"ANIA_original_sample_sitesAlb83" represents the nine 10-km X 10-km sample plots selected for the Aniakchak bird surveys, (2)"ANIA_sample_location_waypointsAlb83" is a summary of the 136 locations at which Aniakchak bird surveys were conducted, (3)"ANIA_sampled_plotsAlb83" represents the nine 10-km X 10-km sample plots inventoried during the Aniakchak bird surveys, and (4)"ANIA_savage_site_checksAlb83" represents unique sites within Aniakchak that were identified for site visits based on expert opinion.

This data package contains geospatial layers used for selecting bird survey locations in the Arctic Network of National Parks. 1)"ARCN_park_boundary" is a summary of park, preserve, and monument boundaries of Arctic Network lands, except those within Bering Land Bridge National Monument. 2)"ARCN_sample_plots" represents the 69, 10 X 10 km sample blocks surveyed and inventoried from 2001-2003 during US Geological Survey's National Park Service (NPS)-sponsored Inventory and Monitoring project. 3)"ARCN_sample_points" is a summary of the 1,652 locations at which bird surveys were conducted from 2001-2003 during US Geological Survey's NPS-sponsored Inventory and Monitoring project. 4)"ARCN_subsections", "ARCN_subsections_grtr100m", "ARCN_subsections_grtr100m_diss_sect", and "ARCN_subsections_grtr100m_diss_subs" are an ecoregional map that delineates the ecoregions, sections, subsections and detailed subsections of Cape Krusenstern National Monument, Gates of the Arctic National Park and Preserve, Kobuk Valley National Park, and Noatak National Park and Preserve. 5)"BELA_boundary" is a summary of Bering Land Bridge National Preserve lands. Data used in preparation of the maps were obtained from USGS 1:250,000 topographic maps depicting the ANILCA boundaries compiled in 1980 by the Interior Alaska Planning Group. 6)"BELA_sample_area" and "BELA_sample_points" represent the locations at which bird surveys were conducted in 1988-1989, 1991, and 2000 in or adjacent to Bering Land Bridge National Preserve.

This data package contains geospatial layers used for selecting bird survey locations in the Arctic Network of National Parks. 1)"ARCN_park_boundary" is a summary of park, preserve, and monument boundaries of Arctic Network lands, except those within Bering Land Bridge National Monument. 2)"ARCN_sample_plots" represents the 69, 10 X 10 km sample blocks surveyed and inventoried from 2001-2003 during US Geological Survey's National Park Service (NPS)-sponsored Inventory and Monitoring project. 3)"ARCN_sample_points" is a summary of the 1,652 locations at which bird surveys were conducted from 2001-2003 during US Geological Survey's NPS-sponsored Inventory and Monitoring project. 4)"ARCN_subsections", "ARCN_subsections_grtr100m", "ARCN_subsections_grtr100m_diss_sect", and "ARCN_subsections_grtr100m_diss_subs" are an ecoregional map that delineates the ecoregions, sections, subsections and detailed subsections of Cape Krusenstern National Monument, Gates of the Arctic National Park and Preserve, Kobuk Valley National Park, and Noatak National Park and Preserve. 5)"BELA_boundary" is a summary of Bering Land Bridge National Preserve lands. Data used in preparation of the maps were obtained from USGS 1:250,000 topographic maps depicting the ANILCA boundaries compiled in 1980 by the Interior Alaska Planning Group. 6)"BELA_sample_area" and "BELA_sample_points" represent the locations at which bird surveys were conducted in 1988-1989, 1991, and 2000 in or adjacent to Bering Land Bridge National Preserve.

This dataset provides information on the identity and number of insects that emerged from thaw pond basins on the central Arctic Coastal Plain, Alaska, during the summer growing season in 2012 and 2013. Collections were made using passive floating emergence traps in pond centers and margins from four types of ponds: low centered polygons, troughs, small coalescent, and large coalescent. A single table provides detail on the family level identity and number of insects captured, the day and year of capture, and the duration of trapping.

This dataset provides information on the identity and number of insects that emerged from thaw pond basins on the central Arctic Coastal Plain, Alaska, during the summer growing season in 2012 and 2013. Collections were made using passive floating emergence traps in pond centers and margins from four types of ponds: low centered polygons, troughs, small coalescent, and large coalescent. A single table provides detail on the family level identity and number of insects captured, the day and year of capture, and the duration of trapping.

These data include 2015 - 2018 eDNA field sample points indicating lab results for presence or absence of bull trout. Sample sites are spaced at a 1 kilometer interval throughout the historical range of bull trout. eDNA stream samples are collected and species presence/absence is determined by analyses at the National Genomics Center. Results are recorded in the feature attribute table of the eDNA sample site shapefile. One point feature in the shapefile was generated for each 1 kilometer sample point in the bull trout eDNA feature class. Where multiple samples were collected at a single eDNA sample site, replicate point features will occur at a single location in the shapefile. The bull trout is an ESA-listed species with a historical range that encompasses many waters across the Northwest. Though once abundant, bull trout have declined in many locations and are at risk from a changing climate, nonnative species, and habitat degradation. Informed conservation planning relies on sound and precise information about the distribution of bull trout in thousands of streams, but gathering this information is a daunting and expensive task. To overcome this problem, we coupled 1) predictions from the range-wide, spatially precise Climate Shield model on the location of natal habitats of bull trout with 2) a sampling template for every 8-digit hydrologic unit in the historical range of bull trout, based on the probability of detecting bull trout presence using environmental DNA (eDNA) sampling (McKelvey et al. 2016). The template consists of a master set of geospatially referenced sampling locations at 1-kilometer intervals within each cold-water habitat. We also identified sampling locations at this same interval based on the U.S. Fish and Wildlife Service's (USFWS) designation of critical spawning and rearing habitat. Based on field tests of eDNA detection probabilities conducted by the National Genomics Center for Wildlife and Fish Conservation, this sampling approach will reliably determine the presence of populations of bull trout, as well as provide insights on non-spawning habitats used by adult and subadult fish. The completed bull trout eDNA survey results are available through an interactive ArcGIS Online Map. The map provides the ability to zoom in and look at an area of interest, as well as to create queries or select an area to download points as a shapefile.

This dataset provides information on aquatic invertebrate composition from ponds (n = 16; surface area < 0.02 km2) and lakes (n =16, surface area > 0.10 km2) on the central Arctic Coastal Plain of Alaska. Ponds and lakes were selected for sampling as part of a larger study of Arctic water body food webs. Details on the study area and findings are published in Laske et al. 2018 and Laske et al. 2019. Tables include: 1) location and count data of invertebrate taxa collected from water bodies, and 2) invertebrate taxonomic information.