Scientist
Office of the Associate Director for Ecosystems
Email:
lwiechman@usgs.gov
Office Phone:
970-226-9139
Supervisor:
Zachary H Bowen
|
We present five hierarchical demarcations of greater sage-grouse population structure, representing the spatial structure of populations which can exist due to differences in dispersal abilities, landscape configurations, and mating behavior. These demarcations represent Thiessen polygons of graph constructs (least-cost path [LCP] minimum spanning trees [MST; LCP-MST]) representing greater sage-grouse population structure. Because the graphs included locational information of sage-grouse breeding sites, we have provided polygons of the population structure. We also present two results using graph analytics representing node/connectivity importance based on our population structure. Understanding wildlife population...
Tags: California,
Centrocercus urophasianus,
Colorado,
Idaho,
Montana, All tags...
Nevada,
North Dakota,
Oregon,
South Dakota,
USGS Science Data Catalog (SDC),
United States,
Utah,
Washington,
Wildlife Biology,
Wyoming,
biota,
centrality measures,
connectivity (structural, functional, potential),
greater sage-grouse,
least-cost paths,
population structure,
western United States, Fewer tags
|
These data were compiled as a part of a landscape conservation design effort for the sagebrush biome, and are the result of applying a spatially explicit model that assessed geographic patterns in sagebrush ecological integrity and used these results to identify Core Sagebrush Areas (CSAs), Growth Opportunity Areas (GOAs), and Other Rangeland Areas (ORAs). Our overall objective in this study was to characterize geographic patterns in ecological integrity of sagebrush ecosystems. These data represent the estimated integrity of sagebrush ecosystems, estimated from a spatial model that assigns high integrity is areas with abundant big sagebrush and perennial grass/forb cover and with minimal annual grass/forb cover,...
Tags: Arizona,
Botany,
California,
Climatology,
Colorado, All tags...
Ecology,
Geography,
Idaho,
Information Sciences,
Land Use Change,
Montana,
Nebraska,
Nevada,
New Mexico,
North Dakota,
Oregon,
Remote Sensing,
South Dakota,
USGS Science Data Catalog (SDC),
Utah,
Washington,
Wildlife Biology,
Wyoming,
biogeography,
biota,
climate change,
conservation,
conservation design,
core sagebrush areas,
data release,
ecological integrity,
ecological processes,
ecosystem resilience,
environment,
geographic patterns,
growth areas,
growth opportunity areas,
habitats,
human impacts,
human modification,
natural resource management,
other rangeland areas,
overlay,
quantitative data,
remediation,
remote sensing,
restoration,
sagebrush biome,
temporal scale,
time series datasets,
western United States,
wildlife habitat, Fewer tags
|
This dataset contains a raster representing current (2017-2020) core sagebrush, growth opportunity areas, and other rangelands on tribal and federal lands that are estimated to be climate resilient into the future (2030-2060). We determined climate-resiliency by comparing current (2017-2020) core sagebrush, growth opportunity areas, and other rangelands to estimated future (2030-2060) conditions of core and growth opportunity areas under mid-century climate change (Representative Concentration Pathway 8.5) conditions (Doherty et al. 2022). The Department of the Interior (DOI) Sagebrush Keystone Initiative (KI) team worked with partners to identify areas within the sagebrush biome for strategic investments in conservation...
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: California,
Colorado,
Conservation,
Idaho,
Montana, All tags...
Nevada,
Oregon,
Rangeland,
Restoration,
Sagebrush,
Utah,
Wyoming,
biota,
ecosystems,
environment,
natural resource management,
terrestrial ecosystems,
western United States, Fewer tags
|
The sagebrush ecosystem spans over 175 million acres in the western United States, and is biologically, culturally, and economically significant to the country. Many disturbances including prolonged drought, pinyon-juniper encroachment, and cycles of invasive grasses and wildfire, pose significant threats to the resilience of the sagebrush biome. To conserve the sagebrush biome and promote community and economic sustainability, the Department of the Interior’s bureaus and offices are working together with many public and private partners to implement a “defend and grow the core” approach to conserve remaining intact sagebrush habitat and ecosystem functions, as well as restore other habitat types which are important...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: California,
Colorado,
Conservation,
Ecology,
Idaho, All tags...
Montana,
Nevada,
Oregon,
Rangeland,
Restoration,
Sagebrush,
USGS Science Data Catalog (SDC),
Utah,
Wyoming,
biota,
ecosystems,
environment,
natural resource management,
terrestrial ecosystems,
western United States, Fewer tags
|
Greater sage-grouse (Centrocercus urophasianus) are at the center of state and national land use policies largely because of their unique life-history traits as an ecological indicator for health of sagebrush ecosystems. These data represent an updated population trend analysis and Targeted Annual Warning System (TAWS) for state and federal land and wildlife managers to use best available science to help guide current management and conservation plans aimed at benefitting sage-grouse populations range-wide. This analysis relied on previously published population trend modeling methodology from Coates and others (2021, 2022) and includes population lek count data from 1960-2023. Bayesian state-space models estimated...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: California,
Colorado,
Idaho,
Montana,
Nevada, All tags...
North Dakota,
Oregon,
South Dakota,
USGS Science Data Catalog (SDC),
Utah,
Washington,
Wyoming,
adaptive management,
biota,
ecology,
human impacts,
long-term ecological monitoring,
shrubland ecosystems,
targeted monitoring,
triggers,
warning system,
western United States, Fewer tags
|
View more...
|