Results 11 to 20 of about 1,714 (156)

Using life-history trait variation to inform ecological risk assessments for threatened and endangered plant species. [PDF]

Integr Environ Assess Manag, 2023
Abstract Developing population models for assessing risks to terrestrial plant species listed as threatened or endangered under the Endangered Species Act (ESA) is challenging given a paucity of data on their life histories. The purpose of this study was to develop a novel approach for identifying relatively data‐rich nonlisted species that could serve
Rueda-Cediel P, Galic N, Brain R, Pinto-Ledezma JN, Rico A, Forbes V.   +5 more
europepmc   +2 more sources

Vascular plant extinction in the continental United States and Canada. [PDF]

Conserv Biol, 2021
Abstract Extinction rates are expected to increase during the Anthropocene. Current extinction rates of plants and many animals remain unknown. We quantified extinctions among the vascular flora of the continental United States and Canada since European settlement. We compiled data on apparently extinct species by querying plant conservation databases,
Knapp WM, Frances A, Noss R, Naczi RFC, Weakley A, Gann GD, Baldwin BG, Miller J, McIntyre P, Mishler BD, Moore G, Olmstead RG, Strong A, Kennedy K, Heidel B, Gluesenkamp D.   +15 more
europepmc   +2 more sources

Emerging methods in botanical DNA/RNA extraction [PDF]

Appl Plant Sci, 2023
Applications in Plant Sciences, Volume 11, Issue 3, May-June 2023.
Mitchell N, McAssey E, Hodel R.
europepmc   +2 more sources

Forb composition gradients and intra-annual variation in a threatened Pacific Northwest Bunchgrass Prairie. [PDF]

Ecol Evol, 2022
Native perennial forb communities (an overlooked component in grasslands) in the Pacific Northwest Bunchgrass Prairie (PNB) were structured by water drainage and soil depth. Conventional vegetation sampling is insufficient to characterize perennial forbs in the PNB—threatening conservation efforts in this endangered grassland.
Averett JP, Endress BA.
europepmc   +2 more sources

First Insights Into the LC-HRMS Profiling and Biological Activities of <i>Crocus graveolens</i>. [PDF]

Food Sci Nutr
This study reports the first comprehensive analysis of Crocus graveolens Boiss. & Reut. using LC‐HRMS, identifying 33 secondary metabolites, with rutin as the major compound (162.808 ± 4.5 μg/g extract). The extract showed moderate antioxidant activity and effectively inhibited acetylcholinesterase (30.88% ± 1.51%) and butyrylcholinesterase (61.22% ± 0.
Ersoy E, Boğa M, Kaplan A, Mataracı Kara E, Demirci Kayıran S, Eroğlu Özkan E.   +5 more
europepmc   +2 more sources

Improving plant DNA metabarcoding accuracy with ecological filters and Angiosperms353: Field and pollen microscopy validation. [PDF]

Appl Plant Sci
Abstract Premise Metabarcoding has become a successful tool for the identification of species in ecological assemblages. However, the usefulness of metabarcoding for identifying plant species has been hampered due to a lack of universal gene regions that work across all taxa, limiting the applications of metabarcoding in ecology.
Benkendorf RC, Woodworth EJ, CaraDonna PJ, Ogilvie JE, Taddeo S, Fant JB.   +5 more
europepmc   +2 more sources

Advancing the science and practice of rare plant conservation with the Center for Plant Conservation Reintroduction Database. [PDF]

Appl Plant Sci
Abstract Premise Reintroductions or translocations are an increasingly important activity to recover and conserve at‐risk plant species. Yet because many are not published in the scientific literature, learning from previous attempts may often require considerable time and effort. The Center for Plant Conservation Reintroduction Database (CPCRD; https:/
Bellis J, Albrecht MA, Maschinski J, Osazuwa-Peters O, Stanley T, Heineman KD.   +5 more
europepmc   +2 more sources

Do Snow-Adapted Prey Facilitate Coexistence of the Sierra Nevada Red Fox With Sympatric Carnivores? [PDF]

Mol Ecol
ABSTRACT 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, Quinn CB, Vanderzwan SL, Caspi T, Figura P, Sacks BN.   +5 more
europepmc   +2 more sources

The road less taken: Dihydroflavonol 4-reductase inactivation and delphinidin anthocyanin loss underpins a natural intraspecific flower colour variation. [PDF]

Mol Ecol
Abstract Visual cues are of critical importance for the attraction of animal pollinators, however, little is known about the molecular mechanisms underpinning intraspecific floral colour variation. Here, we combined comparative spectral analysis, targeted metabolite profiling, multi‐tissue transcriptomics, differential gene expression, sequence ...
Wong DCJ, Wang Z, Perkins J, Jin X, Marsh GE, John EG, Peakall R.   +6 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