Results 41 to 50 of about 26,415 (223)

CHEMOTYPIC Variation in Volatiles and Herbivory for Sagebrush [PDF]

open access: yesJournal of Chemical Ecology, 2016
Plants that are damaged by herbivores emit complex blends of volatile compounds that often cause neighboring branches to induce resistance. Experimentally clipped sagebrush foliage emits volatiles that neighboring individuals recognize and respond to. These volatiles vary among individuals within a population.
Richard Karban   +2 more
openaire   +4 more sources

Biological and environmental drivers of early life fawn survival in a declining pronghorn population

open access: yesWildlife Biology, EarlyView.
Pronghorn Antilocapra americana occupy only a portion of their historical range and in Oklahoma occur at the eastern edge of the species' contemporary distribution. Monitoring has suggested pronghorn populations in Oklahoma have declined in recent years.
Derek P. Hahn   +10 more
wiley   +1 more source

Delisting the Northern Rocky Mountain gray wolf from the US Endangered Species Act: an assessment of political discourse over 20 years

open access: yesWildlife Biology, EarlyView.
Feared, revered, and politicized, wolves have long captured human imagination, and ignited fierce conservation conflicts. In the United States, the Endangered Species Act protects species at risk of extinction from human impacts. This far‐reaching legislation, which impacts development and state‐level wildlife management, has been fraught with legal ...
Iree Wheeler   +9 more
wiley   +1 more source

Spatiotemporal mapping the usable space of free‐roaming equids across the western United States

open access: yesWildlife Society Bulletin, EarlyView.
Identification of the inter‐decadal (2010‐2011) enhancement‐degradation gradients in the usable space for wild equid Herd Management Areas in the Great Basin, USA. Abstract Management of feral equids in the American West is hindered by the lack of a formal habitat map and monitoring system.
Alexander Hernandez   +3 more
wiley   +1 more source

Hoary Cress Reproduction in a Sagebrush Ecosystem [PDF]

open access: yesJournal of Range Management, 2000
Field studies were undertaken to evaluate hoary cress (Cardaria draba (L.) Desv.) reproduction and spread in a sagebrush ecosystem. Hoary cress germination, emergence, and survival were restricted to moist environments. These conditions occurred 2 out of 8 years.
L. Larson, G. Kiemnec, T. Smergut
openaire   +2 more sources

Preliminary Analysis of AIS Spectral Data Acquired from Semi-arid Shrub Communities in the Owens Valley, California [PDF]

open access: yes, 1985
Spectral characteristics of semic-arid plant communities using 128 channel airborne imaging spectrometer (AIS) data acquired on October 30, 1984. Both field and AIS spectra of vegetation were relatively featureless and differed from substrate spectra ...
Rock, B. N., Ustin, S. L.
core   +1 more source

Seasonal temperature acclimatization in a semi-fossorial mammal and the role of burrows as thermal refuges. [PDF]

open access: yes, 2018
Small mammals in habitats with strong seasonal variation in the thermal environment often exhibit physiological and behavioral adaptations for coping with thermal extremes and reducing thermoregulatory costs.
Camp, Meghan J   +7 more
core   +3 more sources

Chronic Wasting Disease management responses in North America: A public policy analysis

open access: yesWildlife Society Bulletin, EarlyView.
In this study we use the Multiple Streams Framework from public policy theory to assess the responses of wildlife management agencies in states and provinces with CWD‐positive cases in the United States and Canada to alleviate public concerns and manage the spread of this disease.
Kelly H. Dunning   +12 more
wiley   +1 more source

Historical fire regimes and contemporary fire effects within sagebrush habitats of Gunnison Sage‐grouse

open access: yesEcosphere, 2023
The historical role of fire in sagebrush (Artemisia tridentata) landscapes remains poorly understood, yet is important to inform management and conservation of obligate species such as the threatened Gunnison Sage‐grouse (GUSG; Centrocercus minimus).
Petar Z. Simic   +4 more
doaj   +1 more source

Chemical Warfare Agents in Plants: Biodefensive Terpenes from Sagebrush [PDF]

open access: yes, 2013
To prevent being eaten, some plants create compounds that are toxic to herbivores, and herbivores respond by creating new ways to metabolize these toxins. For example, sagebrush produces bio-defensive terpenes to deter foraging by sage grouse.
Stierman, Belinda
core   +1 more source

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