Results 71 to 80 of about 38,427 (224)

Visualization of Xylary Rings of Stems of Artemisia tridentata spp. Wyomingensis.

open access: yes, 2017
Plants of the many subspecies of Artemisia tridentata are dominant shrubs of the Great Basin Desert of the United States. Many subspecies of Artemisia tridentata show extensive eccentric growth in which vascular cambium dies and no longer produces ...
Michael Scarinci   +3 more
semanticscholar   +1 more source

Nucleolar dominance arises in Spartina homoploid hybrids and persists after allopolyploidization

open access: yesThe Plant Journal, Volume 125, Issue 5, March 2026.
Significance Statement Evolution of nucleolar dominance in Spartina anglica since its origin c. 150 years ago. mC, cytosine methylation; NOR, nucleolar organizer regions. rDNA resides within the NORs. Spartina anglica C.E. Hubbard presents an iconic allopolyploid species that formed only 150 years ago, spreading worldwide since then.
Alena Kuderová   +8 more
wiley   +1 more source

The comparative evaluation of ERTS-1 imagery for resource inventory in land use planning [PDF]

open access: yes
The author has identified the following significant results. Multidiscipline team interpretation and mapping of resources for Crook County is complete on 1:250,000 scale enlargements of ERTS imagery and 1:120,000 hi-flight photography.
Cornwell, J. A.   +9 more
core   +4 more sources

Synthesis and Biological Evaluation of Desacetylmatricarin Derivatives Isolated from Basin Big Sagebrush

open access: yesSeparations
Desacetylmatricarin, a sesquiterpene lactone (SL), is the major component extracted from the aerial parts of basin big sagebrush (Artemisia tridentata subsp. tridentata).
N. Evelin Paucar   +6 more
doaj   +1 more source

Soil characteristics are associated with gradients of big sagebrush canopy structure after disturbance

open access: yesEcosphere, 2019
Reestablishing shrub canopy cover after disturbance in semi‐arid ecosystems, such as sagebrush steppe, is essential to provide wildlife habitat and restore ecosystem functioning.
David M. Barnard   +8 more
doaj   +1 more source

Efeito acaricida de óleos essenciais e concentrados emulsionáveis de Eucalyptus spp em Boophilus microplus [PDF]

open access: yes, 2015
Realizou-se um estudo sobre a ação biocida de Eucalyptus citriodora, Eucalyptus globulus e Eucalyptus staigeriana no carrapato Boophilus microplus, buscando-se a produção de acaricidas menos agressivos ao meio ambiente.
CHAGAS, A. C. de S.   +5 more
core  

Reproduction partially compensates for human‐caused mortality in a cooperative breeder

open access: yesEcosphere, Volume 17, Issue 2, February 2026.
Abstract Reproductive output can vary widely among mammalian species. There are many drivers that affect reproductive output including evolutionary, environmental, population, social, and individual traits. Although several factors, including human‐caused mortality, can affect reproductive output, we generally have a poor understanding of how such ...
David E. Ausband
wiley   +1 more source

Does Wildfire and Cheatgrass Invasion in a Sage-steppe Ecosystem Change Soil Texture? [PDF]

open access: yes, 2014
Fire and land-use changes influence vegetation types and alter below-ground carbon storage and soil characteristics; additionally, shrub-steppe environments are prone to cheatgrass invasion and subsequent alterations in soil morphology and ...
Gagne, Xavier   +2 more
core   +1 more source

JAMES BUTTLE REVIEW: A Synthesis of Riparian Plant Water Use Over Two Decades in North American Drylands

open access: yesHydrological Processes, Volume 40, Issue 2, February 2026.
Using the most complete summary of 20 years of riparian plant water use studies in North American drylands to date, we examine broad patterns of plant water use by vegetation type and across climate gradients. Marshes, cottonwood‐willow stands and tamarisk use larger amounts of water than other communities, and all communities have higher water use in ...
Emily C. Palmquist   +5 more
wiley   +1 more source

Seed Predation on Slickspot Peppergrass by the Owyhee Harvester Ant [PDF]

open access: yes, 2009
(1) Seed predation can significantly restrict the reproductive output and individual fitness of plants, particular those plants that are rare or endangered. In some cases the total seed loss can reach 100%.
White, Joshua P.
core   +1 more source

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