Results 51 to 60 of about 32,849 (188)

Triple Oxygen and Hydrogen Isotopes of Soil Water Across Climates, Seasons, and Depths

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Soil waters are a central component of the terrestrial water cycle. Their δ2H, δ18O, and d‐excess values contain rich information about hydroclimate, including the source of moisture and its evaporative history. Paleoclimate workers seek to investigate ancient hydroclimates via triple oxygen isotope geochemistry, termed Δ′17O, which is ...
Julia R. Kelson, Naomi E. Levin, David P. Huber, Lixin Jin, Hugo A. Gutiérrez Jurado, Jennifer L. Pierce   +5 more
wiley   +1 more source

Understanding the future of big sagebrush regeneration: challenges of projecting complex ecological processes

Ecosphere, 2021
Regeneration is an essential demographic step that affects plant population persistence, recovery after disturbances, and potential migration to track suitable climate conditions.
Daniel R. Schlaepfer, John B. Bradford, William K. Lauenroth, Robert K. Shriver   +3 more
doaj   +1 more source

Comparing Accuracy and Biases of DNA Metabarcoding, Hybridization Capture, and Metagenomic Sequencing for Quantifying Herbivore Diets

Molecular Ecology Resources, Volume 26, Issue 5, July 2026.
ABSTRACT DNA metabarcoding using relative read abundance (RRA) is commonly applied to estimate herbivore diet composition, yet its quantitative accuracy remains uncertain. We assessed taxonomic resolution and quantitative performance of RRA from DNA metabarcoding compared to metagenomic sequencing and hybridization capture, using deer scats from ...
Charlotte E. Eriksson, Lisa Shipley, Darren A. Clark, Taal Levi   +3 more
wiley   +1 more source

Cytogeography and chromosome evolution of subgenus Tridentatae of Artemisia (Asteraceae) [PDF]

American Journal of Botany, 1999
The subgenus Tridentatae of Artemisia (Asteraceae: Anthemideae) is composed of 11 species of various taxonomic and geographic complexities. It is centered on Artemisia tridentata with its three widespread common subspecies and two more geographically confined ones.
E D, McArthur, S C, Sanderson
openaire   +2 more sources

Cumulative effects of an herbivorous ecosystem engineer in a heterogeneous landscape

Ecosphere, 2016
Foraging by herbivores alters individual plants and vegetation communities directly, and engineering behaviors such as bioturbation (digging and turning soil) and biodeposition (deposition of feces and urine) can affect soils and physical properties that
Mitchell A. Parsons, Tela C. Barkley, Janet L. Rachlow, Jodi L. Johnson‐Maynard, Timothy R. Johnson, Charlotte R. Milling, John E. Hammel, Ian Leslie   +7 more
doaj   +1 more source

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

Ecosphere, 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, Jonathan D. Coop, Ellis Q. Margolis, Jessica R. Young, Manuel K. Lopez   +4 more
doaj   +1 more source

Collet Hairs Are Critical for Anchoring and Survival of Arabidopsis thaliana Seedlings During Early Development

Physiologia Plantarum, Volume 178, Issue 4, July/August 2026.
ABSTRACT Rapid and successful establishment of seedlings, beginning with the penetration of the emerging radicle into the soil, is essential for survival. In roots, root hairs increase the surface area for the absorption of water and solutes while providing the mechanical anchorage necessary for deeper soil penetration during elongation.
Jaebeom Lim, Hyeong Bin Jeon, Donghyun Kim, Sang‐Kee Song, Hankuil Yi   +4 more
wiley   +1 more source

Repeated fire altered succession and increased fire behavior in basin big sagebrush–native perennial grasslands

Ecosphere, 2020
The structure and composition of sagebrush‐dominated ecosystems have been altered by changes in fire regimes, land use, invasive species, and climate change.
Lisa M. Ellsworth, J. Boone Kauffman, Schyler A. Reis, David Sapsis, Kendra Moseley   +4 more
doaj   +1 more source

A matter of timing: sagebrush steppe restoration seeding outcomes altered by species responses to warmer spring temperatures and interannual weather variation

Restoration Ecology, Volume 34, Issue 5, July 2026.
Abstract Introduction Restoration outcomes in cold desert ecosystems like sagebrush steppe are affected by weather variability, particularly during the spring, a critical time period for seedling establishment. Seedling emergence phenology is also highly variable among species in these ecosystems.
Stella M. Copeland, Jonathan D. Bates, Kirk W. Davies, Matthew J. Germino   +3 more
wiley   +1 more source

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

, 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, K. Encarnacion, Angel R. Pineda, L. Evans   +3 more
semanticscholar   +1 more source