Results 31 to 40 of about 38,427 (224)

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

open access: yesGlobal 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   +2 more
doaj   +1 more source

\u3ci\u3eSlaterobius Insignis\u3c/i\u3e (Heteroptera: Lygaeidae): Association With Granite Ledges and Outcrops in Minnesota [PDF]

open access: yes, 2017
Adults and late-instar nymphs of the wide-ranging myrmecomorphic lygaeid Slaterobius insignis were collected in northern Minnesota from cracks of granite outcrops and ledges, a habitat differing somewhat from that reported elsewhere.
Wheeler, A. G, Jr.
core   +2 more sources

Water conservation in Artemisia tridentata through redistribution of precipitation

open access: yesOecologia, 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.   +4 more
openaire   +3 more sources

Aboveground Total and Green Biomass of Dryland Shrub Derived from Terrestrial Laser Scanning [PDF]

open access: yes, 2014
Sagebrush (Artemisia tridentata), a dominant shrub species in the sagebrush-steppe ecosystem of the western US, is declining from its historical distribution due to feedbacks between climate and land use change, fire, and invasive species.
Clark, Patrick E.   +3 more
core   +2 more sources

Insights into transcriptomes of big and low sagebrush.

open access: yesPLoS 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   +3 more
doaj   +1 more source

Montane Meadow Change during Drought Varies with Background Hydrologic Regime and Plant Functional Group [PDF]

open access: yes, 2010
Climate change models for many ecosystems predict more extreme climatic events in the future, including exacerbated drought conditions. Here we assess the effects of drought by quantifying temporal variation in community composition of a complex montane ...
Caruthers, Jennet   +5 more
core   +3 more sources

Taxonomic and nomenclatural rearrangements in Artemisia subgen. Tridentatae, including a redefinition of Sphaeromeria (Asteraceae, Anthemideae) [PDF]

open access: yes, 2011
[EN]A recent molecular phylogenetic study of all members of Artemisia subgenus Tridentatae, as well as most of the other New World endemic Artemisia and the allied genera Sphaeromeria and Picrothamnus, raised the necessity of revising the taxonomic ...
Durant McArthur, E.   +6 more
core   +1 more source

A THIRD SUBSPECIES IN THE ARTEMISIA TRIDENTATA COMPLEX

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

Seed weight variation of wyoming sagebrush in Northern Nevada [PDF]

open access: yes, 2005
Seed size is a crucial plant trait that may potentially affect not only immediate seedling success but also the subsequent generation. We examined variation in seed weight of Wyoming sagebrush (Artemisia tridentata ssp. wyomingensis Beetle and Young), an
Busso, Carlos Alberto   +1 more
core   +1 more source

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