Results 41 to 50 of about 7,072 (205)

Point Sampling for Leaf Area Index in Sagebrush Steppe Communities [PDF]

open access: yesJournal of Range Management, 2001
Although point sampling has been used for more than 30 years to quantify leaf area index (LAI), this field technique has not been rigorously evaluated in sagebrush steppe plant communities. Leaf area index estimates obtained using different sampling pin inclinations or combinations of pin inclinations were evaluated in Wyoming big sagebrush (Artemisia ...
P. E. Clark, M. S. Seyfried
openaire   +2 more sources

To burn or not to burn: Comparing reintroducing fire with cutting an encroaching conifer for conservation of an imperiled shrub‐steppe

open access: yesEcology and Evolution, 2019
Woody vegetation has increased on rangelands worldwide for the past 100–200 years, often because of reduced fire frequency. However, there is a general aversion to reintroducing fire, and therefore, fire surrogates are often used in its place to reverse ...
Kirk W. Davies   +5 more
doaj   +1 more source

Ecosystem resilience is evident 17 years after fire in Wyoming big sagebrush ecosystems

open access: yesEcosphere, 2016
Recent policy has focused on prevention of wildfire in the sagebrush steppe in an effort to protect habitat for the greater sage grouse (Centrocercus urophasianus).
L. M. Ellsworth   +3 more
doaj   +1 more source

Effects of a decade of grazing exclusion on three Wyoming big sagebrush community types

open access: yesGlobal Ecology and Conservation, 2022
Livestock grazing is the most extensive land use in Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis [Beetle & A. Young] S.L. Welsh) steppe and its effects on plant community characteristics have been greatly debated.
T.W. Thomas   +4 more
doaj   +1 more source

Soil reproduction in steppe ecosystems of different ages [PDF]

open access: yes, 2012
Features of the development of steppe chernozems were established based on the study of soils of different age groups at archaeological sites. Differences in the formation of phytomass and morphological maturity of the soil profile in the recovery of ...
Lisetskii, F. N.
core   +1 more source

Identity and Seasonal Abundance of Beneficial Arthropods Associated with Big Sagebrush (Artemisia tridentata) in Central Washington State, USA

open access: yesInsects, 2018
Big sagebrush (Artemisia tridentata) characterizes and dominates the sagebrush steppe, the largest temperate semi-desert ecosystem in North America. The beneficial arthropod fauna hosted by A.
David G. James   +3 more
doaj   +1 more source

Protecting restoration investments from the cheatgrass‐fire cycle in sagebrush steppe

open access: yesConservation Science and Practice, 2021
The U.S. federal government has recently committed to the difficult task of slowing and managing the invasive grass‐fire cycle in sagebrush steppe, where property, livelihoods, and entire ecosystems are at risk.
David S. Pilliod   +3 more
doaj   +1 more source

Lidar-derived estimate and uncertainty of carbon sink in successional phases of woody encroachment [PDF]

open access: yes, 2013
Woody encroachment is a globally occurring phenomenon that contributes to the global carbon sink. The magnitude of this contribution needs to be estimated at regional and local scales to address uncertainties present in the global- and continental-scale ...
Hardegree, Stuart   +4 more
core   +1 more source

The performance of drones and artificial intelligence for monitoring sage‐grouse at leks

open access: yesWildlife Biology, EarlyView.
Accurately monitoring sage‐grouse populations is critical for conservation, yet traditional ground‐based visual surveys face challenges in scalability and consistency, prompting the exploration of innovative drone‐based methodologies enhanced by artificial intelligence.
Lance B. McNew   +2 more
wiley   +1 more source

Selection of Food Patches by Sympatric Herbivores in Response to Concealment and Distance from a Refuge [PDF]

open access: yes, 2016
Small herbivores face risks of predation while foraging and are often forced to trade off food quality for safety. Life history, behaviour, and habitat of predator and prey can influence these trade-offs.
Bertolino S.   +10 more
core   +2 more sources

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