Results 21 to 30 of about 489 (108)
Do Snow-Adapted Prey Facilitate Coexistence of the Sierra Nevada Red Fox With Sympatric Carnivores? [PDF]
Mol EcolABSTRACT Specialist species in alpine ecosystems may be increasingly threatened by climate‐driven habitat loss and encroachment by generalist competitors. Ecological theory predicts that niche differentiation through dietary specialisation can facilitate coexistence with generalist competitors.
Rosburg-Francot G +5 more
europepmc +2 more sources
Social but not solitary bee abundance tracks pollen protein accumulation in forest canopy gaps
Ecological Entomology, Volume 48, Issue 6, Page 738-754, December 2023., 2023 Based on ~6500 interactions in canopy gap habitats, bee foraging periods strongly overlapped with floral protein density in large‐bodied, social and aboveground nesting bees, but not in bees of other functional groups. Bee abundance is predicted by nutritional availability.
Cora B. Davies, Thomas S. Davis
wiley +1 more source
Conservation Science and Practice, Volume 4, Issue 10, October 2022., 2022 We evaluated how the timing of vegetation sampling within the Pacific Northwest Bunchgrass ecosystem affected estimates of perennial forb abundance, richness, and floral density, with a focus on species of cultural significance to Indigenous people of the region.
Bryan A. Endress +3 more
wiley +1 more source
Population biology of rare mariposa lilies (Calochortus: Liliaceae) endemic to serpentine soils in southwestern Oregon [PDF]
Population dynamics, plant communities, and abiotic environments of three narrowly endemic, allopatric mariposa lilies (Calochortus Pursh) are described and compared. All were restricted to ultramafic soils in southwestern Oregon with high concentrations
Fredricks, Nancy Ann
core +6 more sources
DISENTANGLING PHENOTYPIC PATTERNS FROM EVOLUTIONARY PROCESSES IN HIGHLY DIVERSE CALIFORNIA WILDFLOWERS, THE GENUS CALOCHORTUS [PDF]
, 2022 168 pagesA key goal of evolutionary biology is to understand the processes that drive and maintain biodiversity across heterogeneous landscapes. My dissertation leverages a highly polymorphic system in Calochortus, C.
Hernandez, Adriana Ivonne
core +1 more source
Diet of a rare herbivore based on DNA metabarcoding of feces: Selection, seasonality, and survival
Ecology and Evolution, Volume 10, Issue 14, Page 7627-7643, July 2020., 2020 Diet and foraging behavior are the foundation of an herbivore's life history strategy and it is imperative that we know the species of plants they prefer. We used DNA metabarcoding techniques to noninvasively sample the threatened northern Idaho ground squirrel (Urocitellus brunneus) diet. We used three gene regions and found that diets differed on the
Amanda R. Goldberg +5 more
wiley +1 more source
Ecosphere, Volume 11, Issue 5, May 2020., 2020 Abstract The structure and composition of sagebrush‐dominated ecosystems have been altered by changes in fire regimes, land use, invasive species, and climate change. This often decreases resilience to disturbance and degrades critical habitat for species of conservation concern. Basin big sagebrush (Artemisia tridentata ssp. tridentata) ecosystems, in
Lisa M. Ellsworth +4 more
wiley +1 more source
Data from: Spatial scales of genetic structure and gene flow in Calochortus albus (Liliaceae)
, 2013 Calochortus (Liliaceae) displays high species richness, restriction of many individual taxa to narrow ranges, geographic coherence of individual clades, and parallel adaptive radiations in different regions.
Theim, Terra J. +3 more
core +2 more sources
Soil Metabarcoding Helps Identify Recalcitrant Taxa From Chaparral Seed Banks
Journal of Vegetation Science, Volume 37, Issue 2, March/April 2026.Soil seed banks preserve plant diversity, but traditional germination methods often miss dormant or hard‐to‐germinate species. Our study tested metabarcoding as an alternative, finding that DNA‐based sequencing was more reliable than RNA and that water treatments influenced sequencing results.
Angela Chu +4 more
wiley +1 more source
Entomologia Experimentalis et Applicata, Volume 173, Issue 11, Page 1196-1204, November 2025.This study examined the ability of the lily leaf beetle, Lilioceris lilii, to use native Liliaceae species as hosts in its newly invaded range in the Pacific Northwest, United States. We conducted oviposition and larval feeding trials with four lily species. Trials showed that L.
Maggie Freeman +3 more
wiley +1 more source