Results 11 to 20 of about 7,072 (205)

Multiscale responses and recovery of soils to wildfire in a sagebrush steppe ecosystem. [PDF]

Sci Rep, 2022
AbstractEcological theory predicts a pulse disturbance results in loss of soil organic carbon and short-term respiration losses that exceed recovery of productivity in many ecosystems. However, fundamental uncertainties remain in our understanding of ecosystem recovery where spatiotemporal variation in structure and function are not adequately ...
Lohse KA, Pierson D, Patton NR, Sanderman J, Huber DP, Finney B, Facer J, Meyers J, Seyfried MS.   +8 more
europepmc   +4 more sources

Rapid Surveys Reveal Temporal Variation in Flowering Community Phenology in a Great Basin Desert Ecosystem. [PDF]

Ecol Evol
Across four years of surveys in an arid Great Basin ecosystem, community flowering phenology showed strong seasonal, interannual, and trait‐based variation, with most differences occurring in spring and little variation in fall. Flowering patterns broadly corresponded with interannual climate variability, consistent with the importance of moisture ...
Lahti ME, Sakamura E, Jung M, Vigil CM, Smith KS, Ramirez M, Brooks AC.   +6 more
europepmc   +2 more sources

Use of auto-germ to model germination timing in the sagebrush-steppe. [PDF]

Ecol Evol, 2018
AbstractGermination timing has a strong influence on direct seeding efforts, and therefore is a closely tracked demographic stage in a wide variety of wildland and agricultural settings. Predictive seed germination models, based on soil moisture and temperature data in the seed zone are an efficient method of estimating germination timing.
Richardson WC, Whitaker DR, Sant KP, Barney NS, Call RS, Roundy BA, Aanderud ZT, Madsen MD.   +7 more
europepmc   +5 more sources

CONTRASTING HABITAT ASSOCIATIONS OF SAGEBRUSH-STEPPE SONGBIRDS IN THE INTERMOUNTAIN WEST. [PDF]

West Birds, 2017
Sagebrush (Artemisia spp.) steppe is one of North America's most imperiled ecosystems, as the result of many factors including grazing, development, fire, and invasion of exotic plants. Threats to sagebrush steppe are expected to increase because of climate change and further human development. Many songbirds use sagebrush steppe opportunistically, but
Miller RA, Bond L, Migas PN, Carlisle JD, Kaltenecker GS.   +4 more
europepmc   +4 more sources

Seed Biology of Rush Skeletonweed in Sagebrush Steppe [PDF]

Journal of Range Management, 2000
Rush skeletonweed (Chondrilla juncea L.) is an invasive, herbaceous, long-lived perennial species of Eurasian or Mediterranean origin now occurring in many locations throughout the world. In the United States, it occupies over 2.5 million ha of rangeland in the pacific Northwest and California.
Julia D. Liao, Stephen B. Monsen, Val Jo Anderson, Nancy L. Shaw   +3 more
openaire   +2 more sources

Developing and optimizing shrub parameters representing sagebrush (Artemisia spp.) ecosystems in the northern Great Basin using the Ecosystem Demography (EDv2.2) model [PDF]

Geoscientific Model Development, 2019
Ecosystem dynamic models are useful for understanding ecosystem characteristics over time and space because of their efficiency over direct field measurements and applicability to broad spatial extents.
K. Pandit, H. Dashti, N. F. Glenn, A. N. Flores, K. C. Maguire, D. J. Shinneman, G. N. Flerchinger, A. W. Fellows   +7 more
doaj   +1 more source

Ecological potential fractional component cover based on Long-Term satellite observations across the western United States

Ecological Indicators, 2021
Rangelands have immense inherent spatial and temporal variability, yet land condition and trends are often assessed at a limited number of spatially “representative” points.
Matthew Rigge, Deb Meyer, Brett Bunde
doaj   +1 more source

SCALING UP SAGEBRUSH CHEMISTRY WITH NEAR-INFRARED SPECTROSCOPY AND UAS-ACQUIRED HYPERSPECTRAL IMAGERY [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
Sagebrush ecosystems (Artemisia spp.) face many threats including large wildfires and conversion to invasive annuals, and thus are the focus of intense restoration efforts across the western United States. Specific attention has been given to restoration
P. J. Olsoy, S. N. Barrett, B. C. Robb, J. S. Forbey, T. T. Caughlin, M. D. Blocker, C. Merriman, J. D. Nobler, J. L. Rachlow, L. A. Shipley, D. M. Delparte   +10 more
doaj   +1 more source

Sagebrush recovery patterns after fuel treatments mediated by disturbance type and plant functional group interactions

Ecosphere, 2021
Fire and fuel management is a high priority in North American sagebrush ecosystems where the expansion of piñon and juniper trees and the invasion of nonnative annual grasses are altering fire regimes and resulting in loss of sagebrush species and ...
Jeanne C. Chambers, Alexandra K. Urza, David I. Board, Richard F. Miller, David A. Pyke, Bruce A. Roundy, Eugene W. Schupp, Robin J. Tausch   +7 more
doaj   +1 more source

Trends in soil microclimate and modeled impacts on germination timing in the sagebrush steppe

Ecosphere, 2022
Past and projected changes in climate affect soil microclimate, impacting seeds that use soil moisture and soil temperature as cues for germination.
Tyson J. Terry, Stuart P. Hardegree, Matthew D. Madsen, Bruce A. Roundy, Samuel B. St. Clair   +4 more
doaj   +1 more source