Results 31 to 40 of about 32,849 (188)

Actividad ovicida y larvicida de extractos acuosos de Pluchea sericea y Artemisia tridentata en Haemonchus contortus

Ecosistemas y Recursos Agropecuarios, 2018
El objetivo fue evaluar la actividad ovicida y larvicida de extractos acuosos de hojas de Pluchea sericea y Artemisia tridentata sobre Haemonchus contortus. Se evaluaron concentraciones de 100, 75, 50, 25 y 12.5 mg mL-1 de cada extracto.
Ramón Luck Montero, Leonel Avendaño Reyes, Carlos Enrique Ail Catzim, Jorge Cuéllar Ordaz, Fernando Muñoz Tenería, Ulises Macías Cruz   +5 more
doaj   +1 more source

Seasonal Trap Abundance of Two Species of Psilochalcis Kieffer (Hymenoptera: Chalcididae) in Rangelands of the Eastern Great Basin of Utah, USA

Land, 2022
Two species of Psilochalcis (Hymenoptera: Chalcididae) wasps occurring in the Great Basin region of the western United States were sampled from three locations in central Utah (USA) over a two-year period using Malaise traps. Each location is composed of
Mark J. Petersen, Val J. Anderson, Robert L. Johnson, Dennis L. Eggett   +3 more
doaj   +1 more source

Grazing effects on shrub-induced resource islands and herbaceous vegetation heterogeneity in sagebrush-steppe communities

Global Ecology and Conservation, 2022
Spatial heterogeneity in plant communities promotes coexistence and diversity by providing a variety of niches for different species. In shrub-steppe communities, shrubs create distinct microsites under their canopies (canopy microsites) compared to ...
Kirk W. Davies, Stella M. Copeland, Jon D. Bates   +2 more
doaj   +1 more source

Water conservation in Artemisia tridentata through redistribution of precipitation

Oecologia, 2003
Water conservation is important for plants that maintain physiologically active foliage during prolonged periods of drought. A variety of mechanisms for water conservation exist including stomatal regulation, foliage loss, above- and below-ground allocation patterns, size of xylem vessels and leaf pubescence. Using the results of a field and simulation
Ryel, Ronald J., Leffler, A. Joshua, Peek, M. S., Ivans, C. Y., Caldwell, Martyn M.   +4 more
openaire   +3 more sources

Insights into transcriptomes of big and low sagebrush.

PLoS ONE, 2015
We report the sequencing and assembly of three transcriptomes from Big (Artemisia tridentata ssp. wyomingensis and A. tridentata ssp. tridentata) and Low (A. arbuscula ssp. arbuscula) sagebrush.
Mark D Huynh, Justin T Page, Bryce A Richardson, Joshua A Udall   +3 more
doaj   +1 more source

A THIRD SUBSPECIES IN THE ARTEMISIA TRIDENTATA COMPLEX

, 1965
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Beetle, Alan A. (Alan Ackerman), Young, Alvin   +1 more
openaire   +2 more sources

Effects of oiling common raven nests on ravens and greater sage‐grouse in sagebrush ecosystems

The Journal of Wildlife Management, EarlyView.
We oiled and sham‐oiled raven nests across 7 sites in the Great Basin to measure the effects of egg‐oiling on co‐occurring populations of ravens and sage‐grouse. Oiling raven eggs ended embryonic development of oiled eggs, reduced raven densities, resulted in more than a doubling of nest‐survival probabilities of sage‐grouse nests, and spurred ...
Steven R. Mathews, Corina A. Sanchez, Peter S. Coates, Shawn T. O'Neil, David J. Delehanty   +4 more
wiley   +1 more source

Landscape conservation forecasting to evaluate ecological condition and wildlife habitat suitability in eastern Nevada U.S.A.

Restoration Ecology, EarlyView.
Abstract Introduction Cooperation among managers of protected areas and federal multiple use lands with private inholdings to increase restoration success and economies of scale creates ecological and regulatory complexity best studied with state‐and‐transition simulation models (STSM).
Louis Provencher, Kevin J. Badik, Sarah Byer, Laurel Saito, Margaret Horner, Bryan Hamilton, Michael Clifford, Devin McHugh   +7 more
wiley   +1 more source

Earlier fall precipitation and low severity fire impacts on cheatgrass and sagebrush establishment

Ecosphere, 2020
In arid and semiarid ecosystems, invasion by exotic grasses may be driving state changes in vegetation defined by losses of native shrub communities.
Tara B. B. Bishop, Baylie C. Nusink, Rebecca Lee Molinari, Justin B. Taylor, Samuel B. St. Clair   +4 more
doaj   +1 more source

Herbivory Amplifies Adverse Effects of Drought on Seedling Recruitment in a Keystone Species of Western North American Rangelands

Plants, 2022
Biotic interactions can affect a plant’s ability to withstand drought. Such an effect may impact the restoration of the imperiled western North American sagebrush steppe, where seedlings are exposed to summer drought.
Mathew Geisler, Sven Buerki, Marcelo D. Serpe   +2 more
doaj   +1 more source