CARTOGRAPHIC TECHNICIAN
Email:
mchenaille@usgs.gov
Office Phone:
530-669-5092
ORCID:
0000-0003-3387-7899
Location
800 Business Park Drive
Dixon
, CA
95620
US
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This raster dataset depicts percent canopy cover derived from 1-m conifer classifications when aggregated to 30-m cells. Conifer features were classified from 2010, 2012, and 2013 NAIP Digital Ortho Quarter Quads (DOQQ) using the Feature Analyst 5.0 extension for ArcGIS 10.1. Tiles were organized and grouped by Nevada Department of Wildlife Population Management Unit (PMU) locations, plus a 10 km area beyond the PMU extent. Analysts visually identified conifers in the imagery using false color infrared settings and digitized multiple trees per tile as training locations for classification. After performing hierarchical learning and clutter removal with Feature Analyst to remove non-conifer features on output shapefiles,...
Types: Citation,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Biota,
Conifers,
Environment,
Great Basin,
Land cover, All tags...
Trees,
biota,
environment, Fewer tags
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Predictions of raven occurrence intersected with high impact areas for sage-grouse populations. The index highlights regions where elevated raven occurrence is likely to impact breeding sage-grouse.
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Great Basin,
biota,
geographic information systems (GIS),
geospatial analysis,
habitat alteration, All tags...
human impacts,
occupancy model,
predator-prey interactions,
sensitive prey,
shrublands,
wildlife, Fewer tags
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These tables serve as input data for hierarchical models investigating interactions between raven density and Greater Sage-grouse nest success. Observations were recorded over an 11 year time period, spanning from 2009 through 2019. The model is run in JAGS via R, the code is publicly available via the U.S. Geological Survey's GitLab (O'Neil et al. 2023). We recommend not making any changes or edits to the tables unless the user is experienced with hierarchical modeling. References: O'Neil, S.T., Coates, P.S., Webster, S.C., Brussee, B.E., Dettenmaier, S.J., Tull, J.C., Jackson, P.J., Casazza, M.L., and Espinosa, S.P., 2023, Code for a hierarchical model of raven densities linked with sage-grouse nest survival...
Categories: Data;
Tags: Anthropogenic subsidies,
California,
Great Basin,
Idaho,
Nevada, All tags...
bi-state,
biota,
conservation planning,
decision support,
density surface model,
distance sampling,
ecology,
human impacts,
native species,
nest survival,
population decline,
predation,
predator-prey,
sagebrush,
species distribution,
species of concern,
wildlife, Fewer tags
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This raster represents a continuous surface of sage-grouse habitat suitability index (HSI) values for northeastern California. HSIs were calculated for spring (mid-March to June), summer (July to mid-October), and winter (November to March) sage-grouse seasons, and then multiplied together to create this composite dataset.
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: California,
Great Basin,
Greater Sage-Grouse,
Habitat,
Nevada, All tags...
North America,
Sagebrush Ecosystem Council,
United States,
biota,
boundaries,
environment, Fewer tags
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Ranked habitat classes for sage-grouse brood-rearing productivity at each 90 m pixel. Habitat classes represent areas where high brood selection and high brood survival intersected, whereas the lowest ranks represent areas where high brood habitat selection intersected with the low brood survival. Hierarchical models of brood selection and survival were fit to landscape covariates within a Bayesian modeling framework in Nevada and California from 2009 - 2017 to develop spatially explicit information about brood habitat selection and survival.
Tags: Great Basin,
adaptive habitat selection,
chick survival,
ecological trap,
ecosystems, All tags...
fires,
habitat functional response,
human impacts,
maladaptive habitat selection,
native species,
resource selection function,
shrubland ecosystems,
western United States, Fewer tags
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