Volunteer Scientist Emeritus
Email:
david_a_pyke@usgs.gov
Office Phone:
541-750-0989
ORCID:
0000-0002-4578-8335
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This Report provides a strategic approach for conservation of sagebrush ecosystems and Greater SageGrouse (sage-grouse) that focuses specifically on habitat threats caused by invasive annual grasses and altered fire regimes. It uses information on factors that influence (1) sagebrush ecosystem resilience to disturbance and resistance to invasive annual grasses and (2) distribution, relative abundance, and persistence of sage-grouse populations to develop management strategies at both landscape and site scales. A sage-grouse habitat matrix links relative resilience and resistance of sagebrush ecosystems with sage-grouse habitat requirements for landscape cover of sagebrush to help decision makers assess risks and...
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The dataset supports a larger study that examined the impacts of three tackifiers (guar, psyllium, and polyacrylamide) on growth of two dryland mosses (Bryum argenteum and Syntrichia ruralis). Moss fragments were grown in petri dishes and subjected to individual tackifiers in one of three possible concentrations (0.5x, 1x, or 2x) of the respective manufacturer's recommended application rate. Distilled water was used as a control treatment, giving a total of ten treatments (nine tackifier-concentration combinations and a water control). Bryum fragments were watered four times daily for six weeks and Syntrichia fragments were watered twice daily for five weeks, after which the experiments were concluded. Shoot length,...
Tags: Botany,
Bryum argenteum,
Great Basin,
Intermountain West,
Land Use Change, All tags...
Oregon,
Syntrichia ruralis,
USGS Science Data Catalog (SDC),
biocrust,
biological soil crust,
bioremediation,
biota,
desert ecosystems,
ecological restoration,
environment,
farming,
mosses,
natural resource management,
remediation, Fewer tags
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Here, we present greater sage-grouse nesting habitat suitability 15-years after simulating a fire and planting of sagebrush. The planting design used here reflects the multi-year (my) habitat restoration effort where we used several moderate (sm) patches with high density (hd) planting of sagebrush. The planting was targeted for nesting habitat, and the data reflects simulated habitat conditions in 2030. To assess the degree to which transplanting sagebrush (Artemisia spp.) could quickly restore former sage-grouse habitat and the strategies by which greater sage-grouse (Centrocercus urophasianus; hereafter, sage-grouse) habitat restoration is best accomplished, we linked vegetation transitions with habitat selection...
Tags: Fire,
Greater sage-grouse,
Habitat selection,
NV,
Nevada, All tags...
Planting design,
Sagebrush,
State-and-transition model,
Transplant,
Tuscarora,
United States,
Vegetation restoration,
Vegetation transition,
biota,
environment, Fewer tags
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Comma-separated values (.csv) files containing data related to plant biomass and seed production responses of invasive Bromus tectorum (cheatgrass) and Taeniatherum caput-medusae (medusahead) to varying sucrose treatments.
Categories: Data;
Tags: Botany,
Ecology,
Land Use Change,
Snake River Plain,
USGS Science Data Catalog (SDC), All tags...
carbon,
eastern Oregon,
environment,
northern Great Basin,
plants (organisms),
western Idaho, Fewer tags
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We evaluated the expected success of habitat recovery in priority areas under 3 different restoration scenarios: passive, planting, and seeding. Passive means no human intervention following a fire disturbance. Under a planting scenario, field technicians methodically plant young sagebrush saplings at the burned site. The seeding scenario involves distributing large amounts of sagebrush seeds throughout the affected area.
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