AndreaBozzo/ceres-open-data-index huggingface dataset:
Mule Deer Movement Corridors

These data were created to depict the current mule deer distribution in Nevada. Information on mule deer distribution is derived from numerous observations by biologists during aerial and ground surveys, opportunistic observations of all forms of mule deer sign, telemetry, and GPS collar data, land management agency and landowner observations, sportsmen's accounts, past deer herd delineation studies, deer research projects, harvest data, and vehicle collision data. Areas where deer occurrence information is limited have been mapped similarly to adjacent areas with documented mule deer distribution and similar habitat and landscape characteristics. Distribution is categorized by seasonal use and general habitat quality, as well as identifying crucial habitat when known. The distribution data attributes include seasonal use, limiting factors to herd productivity, density, relative carrying capacity, management area, hunt unit groups, and general geographic location or herd name. It is important to point out that the polygons that depict mule deer distribution are primarily based on use and not on modeled habitat suitabilty. The amount and accuracy of information available on each mule deer herd varies across the state. The least information is available on lower density herds and herds that reside in areas with limited ground or aerial access (i.e., military or tribal lands). Mule deer distributions were delineated at 1:100,000 and 1:24,000 scale from USGS topographic orthoquads and 30-meter digital elevation models. Mapped polygons are estimated to be accurate within one kilometer. Data should only be used for general display, mapping, and planning purposes at 1:100,000 scale or smaller.
National Hydrography Dataset: Perennial Rivers and Streams

The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000 scale and exists at that scale for the whole country. High resolution NHD adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Like the 1:100,000-scale NHD, high resolution NHD contains reach codes for networked features and isolated lakes, flow direction, names, stream level, and centerline representations for areal water bodies. Reaches are also defined to represent waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria set out by the Federal Geographic Data Committee. The NHD was clipped to Nevada and queried to show only perennial rivers and streams by the Nevada Department of Wildlife.
Pronghorn Bodie-Wassuk Herd

The Bodie-Wassuk pronghorn (Antilocapra americana) herd contains migrants, but this herd does not migrate between traditional summer and winter seasonal ranges. Therefore, annual ranges were modeled using year-round data to demarcate high use areas instead of modeling the specific winter ranges commonly seen in other ungulate analyses in California. Pronghorn were reintroduced just north of Mono Lake beginning in the 1940s as well as to the Adobe Valley in the 1980s, but low fawn recruitment due to marginal habitat quality, a lack of permanent water availability, abundant wildlife exclusion fencing, and the expansion of pinyon-juniper woodlands and invasive cheat-grass (Bromus tectorum) into preferred native shrub and forb habitats has prevented population growth. The current estimate is stable at <150 animals (Taylor, 2011). Additional conservation concerns for the herd include human activities, such as off-highway vehicle use and proposed mining, as well as an increasing wild horse population. This layer's data were collected as part of a project conducted between 2014 and 2016. This dataset was derived from three separate datasets for the Bodie-Wassuk herd obtained via ScienceBase: Annual Range, Stopovers, and Corridors. These datasets were merged for visualization purposes. Attributes (not all field definitions may be listed): ───────┬────────────┬────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Contour│ │We delineated low, medium and high-level corridors from population level utilization distributions of animal movements. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Low │This represents the "low use" corridor or the footprint used by at least one individual. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │High │This value represents the "high use" corridor or the combined animal utilization distributions for >20% of sampled population. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Stopover │Stopovers were defined as the areas representing the highest 10 percent of use from the mean population-level UD. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Annual Range│Annual range is defined by the top 50% of the values (area) during the year. ───────┴────────────┴──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Pronghorn Likely Tables Herd

The Likely Tables herd contains migrants, but this herd does not migrate between traditional summer and winter seasonal ranges. Instead, much of the herd displays a nomadic tendency, slowly migrating north for the summer using various high use areas as they move. Therefore, annual ranges were modeled using year-round data to demarcate high use areas in lieu modeling specific winter ranges. Drought, increasing fire frequency, invasive annual grasses, and juniper encroachment negatively affect pronghorn habitat. Recent population surveys indicate a declining population (Trausch and others, 2020). Juniper removal on public and private lands have potential to improve habitat quality and potentially reduce predation (Ewanyk, 2020). Fences on public and private lands affect movement corridors and increase crossing and/or migration times. This layer's data were collected as part of a project conducted between 2014 and 2020. This dataset was derived from three separate datasets for the Likely Tables herd obtained via ScienceBase: Annual Range, Stopovers, and Corridors. These datasets were merged for visualization purposes. Attributes (not all field definitions may be listed): ───────┬────────────┬────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Contour│ │We delineated low, medium and high-level corridors from population level utilization distributions of animal movements. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Low │This represents the "low use" corridor or the footprint used by at least one individual. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │High │This value represents the "high use" corridor or the combined animal utilization distributions for >20% of sampled population. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Stopover │Stopovers were defined as the areas representing the highest 10 percent of use from the mean population-level UD. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Annual Range│Annual range is defined by the top 50% of the values (area) during the year. ───────┴────────────┴──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Occupied Mule Deer Distribution

These data were created to depict the current mule deer distribution in Nevada. Information on mule deer distribution is derived from numerous observations by biologists during aerial and ground surveys, opportunistic observations of all forms of mule deer sign, telemetry, and GPS collar data, land management agency and landowner observations, sportsmen's accounts, past deer herd delineation studies, deer research projects, harvest data, and vehicle collision data. Areas where deer occurrence information is limited have been mapped similarly to adjacent areas with documented mule deer distribution and similar habitat and landscape characteristics. Distribution is categorized by seasonal use and general habitat quality, as well as identifying crucial habitat when known. The distribution data attributes include seasonal use, limiting factors to herd productivity, density, relative carrying capacity, management area, hunt unit groups, and general geographic location or herd name.
Occupied Pronghorn Distribution

These data were created to depict the known distribution or potential distribution of pronghorn antelope in Nevada. Animal distribution information is compiled from observations by biologists during aerial and ground surveys, opportunistic observations, telemetry and GPS collar data, sportsman's accounts, harvest data, and vehicle collision data. Distribution data also includes information concerning habitat classification, seasonal use, carrying capacity estimates, limiting factors to herd health, and other data important for successful herd management.
Mule Deer Distribution Summer

This layer was derived from the NDOW Occupied Mule Deer Distribution feature layer by filtering the “Habitat” column by “Summer Range.” Information on mule deer distribution is derived from numerous observations by biologists during aerial and ground surveys, opportunistic observations of all forms of mule deer sign, telemetry, and GPS collar data, land management agency and landowner observations, sportsmen's accounts, past deer herd delineation studies, deer research projects, harvest data, and vehicle collision data. Areas where deer occurrence information is limited have been mapped similarly to adjacent areas with documented mule deer distribution and similar habitat and landscape characteristics. Distribution is categorized by seasonal use and general habitat quality, as well as identifying crucial habitat when known. The distribution data attributes include seasonal use, limiting factors to herd productivity, density, relative carrying capacity, management area, hunt unit groups, and general geographic location or herd name.
Mule Deer Distribution Winter

This layer was derived from the NDOW Occupied Mule Deer Distribution feature layer by filtering the “Habitat” column by “Winter Range.” Information on mule deer distribution is derived from numerous observations by biologists during aerial and ground surveys, opportunistic observations of all forms of mule deer sign, telemetry, and GPS collar data, land management agency and landowner observations, sportsmen's accounts, past deer herd delineation studies, deer research projects, harvest data, and vehicle collision data. Areas where deer occurrence information is limited have been mapped similarly to adjacent areas with documented mule deer distribution and similar habitat and landscape characteristics. Distribution is categorized by seasonal use and general habitat quality, as well as identifying crucial habitat when known. The distribution data attributes include seasonal use, limiting factors to herd productivity, density, relative carrying capacity, management area, hunt unit groups, and general geographic location or herd name.
Sage Grouse PHMA for Data Viewer

Sage-grouse management categories (habitat) in Nevada. Source: Science Base (https://www.sciencebase.gov/catalog/item/65f389f9d34e9853bbf0e813), published 3/15/2024, downloaded 2/19/2025. PHMA and PHMA+ were isolated from other habitat categories on 3/5/2025 for use in the wildlife connectivity hub data viewer. Additional resource: https://sagebrusheco.nv.gov/Resources/Maps/. Values include: Priority-plus management areas (PHMA-plus), Priority habitat management areas (PHMA).
Nevada Rangeland Improvement Project System

These data are designed to depict the location of range improvement line features in the state of Nevada, such as fencing and water developments from 2001-2023. Data were obtained from the BLM in 2023 and were published 6/23/2023. This layer has been provided for reference only and is not intended for download. This layer may contain errors or omissions. Data are produced and maintained by the Bureau of Land Management (BLM).
Mule Deer Trout Creek Herd

The Trout Creek mule deer herd is composed of residents and migrants that make short-range elevational migrations. Mule deer mainly winter at lower elevations surrounding Blue Mountain and the slopes of the Oregon Canyon Mountains. In spring, some of these mule deer migrate to higher elevations in the Oregon Canyon Mountains. Other members of the herd winter in the southwestern portion of the herd’s range. These mule deer migrate to summer ranges on the crests of Holloway Mountain and the Trout Creek Mountains. The Trout Creek mule deer herd faces several threats, including summer wildfires, highway barriers, and competition for resources (particularly from feral horse populations). This layer's data were collected as part of a project conducted between 2020 and 2022. The project is ongoing. This dataset was derived from three separate datasets for the Trout Creek herd obtained via ScienceBase: Winter Range, Stopovers, and Corridors. Due to the need to merge these datasets for visualization purposes, several fields were standardized to account for discrepancies among the source datasets. All three datasets contained the fields “State,” “Species,” “Herd,” “DataType,” and “Contour.” For consistency and clarity with other mule deer datasets, the “State” field was removed from all three datasets. Additionally, the “Contour” field was renamed to “Use.” Rather than retaining numeric values (e.g., 10 and 50), stopover features were assigned the value “stopover,” and winter range features were assigned the value “winter range.” This change was made because the “Use” field is utilized across mule deer datasets for symbology and legend labeling, and these values are more easily interpreted at a glance. For an explanation of the original contour values of 10 and 50 for stopover and winter range, respectively, see the attribute definitions table. Attributes (not all field definitions may be listed): ───┬────────────┬─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Use│ │We delineated low, medium and high-level corridors from population level utilization distributions of animal movements. ───┼────────────┼─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Stopover │Stopovers were defined as the areas representing the highest 10 percent of use from the mean population-level UD. ───┼────────────┼─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Winter Range│Winter range is defined by the top 50% of the values (area) during winter season between fall and spring migrations. ───┼────────────┼─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Low │This represents the "low use" corridor or the footprint used by at least one individual. ───┴────────────┴───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Pronghorn Lassen Herd

The Lassen herd winters in lower elevations in the Secret Valley, Bull Flat, and the Five Springs Wilderness Study Area north of the Skedaddle Mountains and east of Shaffer Mountain, as well as in the Dry Valley Rim Wilderness Study Area. The primary threat to pronghorn in the Lassen herd is the conversion of perennial shrublands to exotic annual grasslands following wildfires. Overabundant free-roaming equids, feral horses and burros, regularly exceed the appropriate management level of the Twin Peaks Herd Management Area, thereby reducing forage and water available for pronghorn. The expansion of juniper into the shrub steppe limits the amount of forage available for pronghorn while increasing the risk of mountain lion predation. The population has been stable to slightly increasing since the 1992-1993 winter die off in northeast California, averaging 974 animals counted during aerial winter surveys (B. Ehler, California Department of Fish and Wildlife, written commun., 2023). This layer's data were collected as part of a project conducted between 2015 and 2017. This dataset was derived from three separate datasets for the Lassen herd obtained via ScienceBase: Winter Range, Stopovers, and Corridors. These datasets were merged for visualization purposes. Attributes (not all field definitions may be listed): ───────┬────────────┬────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Contour│ │We delineated low, medium and high-level corridors from population level utilization distributions of animal movements. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Low │This represents the "low use" corridor or the footprint used by at least one individual. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │High │This value represents the "high use" corridor or the combined animal utilization distributions for >20% of sampled population. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Stopover │Stopovers were defined as the areas representing the highest 10 percent of use from the mean population-level UD. ───────┼────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Winter Range│Winter range is defined by the top 50% of the values (area) during winter season between fall and spring migrations. ───────┴────────────┴──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Elk Inside Desert Herd

The Inside Desert elk herd comprises part of an Idaho–Nevada metapopulation that primarily uses winter ranges in Idaho and summer ranges in Nevada. Inside Desert elk migrate from their winter range near the confluence of the Bruneau River and Clover Creek in Idaho, following the western edge of the Inside Desert along the Bruneau and Jarbidge Rivers to their summer range in the Jarbidge Mountains of Nevada. Apart from hunter harvest, adult survival is high for Inside Desert elk, and calf recruitment is usually higher than thresholds required for stable population growth (K. Huebner, Nevada Department of Wildlife, written commun., 2023). This layer's data were collected as part of a project conducted between 2017 and 2023. This dataset was derived from two separate datasets for the Inside Desert herd obtained via ScienceBase: Stopovers and Migration Routes. Due to the need to merge these datasets for visualization purposes, the “Contour” field was standardized to account for discrepancies among the source datasets. Rather than retaining a numeric value (e.g., 10) in the “Contour” field, stopover features were assigned the value “stopover.” This change was made because the “Contour” field is used across elk datasets for symbology and legend labeling, and these values are more easily interpreted at a glance. For an explanation of the original contour value of 10 for stopover see the attribute definitions table. Attributes (not all field definitions may be listed): ───────┬────────────┬──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Contour│ │We delineated 1 individual, low, medium and high-level migration routes from population level utilization distributions of animal movements. ───────┼────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Stopover │Stopovers were defined as the areas representing the highest 10 percent of use from the mean population-level UD. ───────┼────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │1 individual│Used by 1 individual ───────┼────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Low │Used by two individuals to 10 percent of the individuals. ───────┼────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Medium │Used by 10–20 percent of the individuals. ───────┼────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │High │Used by >20 percent of the individuals. ───────┴────────────┴────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────