Results 71 to 80 of about 2,522 (180)

Changes in snow cover climatology and its elevation dependency over Romania (1961–2020)

Journal of Hydrology: Regional Studies
Study Region: Romanian territory and the Carpathian Mountains, Romania.Study focus: We provide a consistent picture of long-term changes in relevant snow cover characteristics, including phenology (timing of the snow onset and melting), snow cover ...
Vlad-Alexandru Amihăesei, Dana-Magdalena Micu, Sorin Cheval, Alexandru Dumitrescu, Lucian Sfîcă, Marius-Victor Bîrsan   +5 more
doaj   +1 more source

Seasonality and plasticity in the use of native and introduced plant resources by a large forest parrot

Ibis, EarlyView.
Human‐induced environmental change is reshaping plant communities, requiring native animals to adapt their foraging behaviour to track and exploit novel food resources. Trees such as pines (Pinus spp.) introduced for plantation forestry outside of their native ranges often become naturalized.
Tirth Vaishnav, Kevin Chase Burns, Rachael C. Shaw   +2 more
wiley   +1 more source

Dietary flexibility and high arthropod availability prevent food limitation in a mountain population of breeding Northern Wheatears

Ibis, EarlyView.
Mountain ecosystems are under strong environmental pressure and are considered highly vulnerable to climate change, which is likely to lead to forest expansion and loss of open alpine grasslands, threatening many specialized species. However, for most alpine birds, even basic ecological knowledge, such as their diet, remains limited, restricting our ...
Camille Mermillon, Dan Chamberlain, Christian Miquel, David‐Emmanuel Coffie, Keyvan Dumas, Domenico Rosselli, Glenn Yannic   +6 more
wiley   +1 more source

Against the odds: Nesting specialization and foraging ecology provide insights into climate change responses in a mountain bee

Insect Conservation and Diversity, EarlyView.
A unique high‐elevation Exoneura bee defies typical elevation‐driven declines in bee activity, nesting exclusively in dead branches of snow gums near the alpine tree line. Nesting and foraging are tightly linked to snow gum presence, with most activity occurring within 30 m of these trees. Biophysical modelling indicates the bee's thermally constrained
Joshua M. Coates, Noel Takeshima, Francisco Encinas‐Viso, Saul A. Cunningham   +3 more
wiley   +1 more source

A random-forest-derived 35-year snow phenology record reveals climate trends in the Yukon River Basin [PDF]

The Cryosphere
This study presents a 35-year snow phenology record for the Yukon River Basin (YRB), developed using a random forest (RF) model at a 3.125 km resolution, capturing detailed trends in snowmelt onset and snow-off.
C. G. Pan, K. Lasko, S. P. Griffin, J. S. Kimball, J. Du, T. G. Meehan, P. B. Kirchner   +6 more
doaj   +1 more source

Environmental and seasonal filtering of taxonomic, functional and phylogenetic diversity patterns of mountain butterflies in a prime butterfly area, Greece

Insect Conservation and Diversity, EarlyView.
Forest clearings support butterfly communities comparable to mountainous grasslands in alpha‐diversity and conservation value, yet remain compositionally distinct. Generalized linear models (GLMs) showed three key habitat predictors shaping multifaceted diversity and community composition: herb/grass height, flowerhead abundance and elevation.
Konstantina Nasiou, Konstantina Zografou, Andreja Radović, Apostolis Stefanidis, Vassiliki Kati   +4 more
wiley   +1 more source

First Detailed Record of Jikradia olitoria (Hemiptera: Cicadellidae) in the Swiss Southern Alps and Evaluation of Its Current Potential as a Vector of 16SrV‐Phytoplasmas

Journal of Applied Entomology, EarlyView.
ABSTRACT Jikradia olitoria Say is a Nearctic leafhopper that was recently reported in several European countries. Given its role as the vector of phytoplasmas associated with Grapevine Yellows diseases (GYD) in its native range, its presence in European vineyard agroecosystems could represent an important phytosanitary risk.
Alan Oggier, Christophe Debonneville, Marco Conedera, Attilio Rizzoli   +3 more
wiley   +1 more source

Early‐life temperature drives recruitment success in Eurasian perch (Perca fluviatilis) populations

Journal of Fish Biology, EarlyView.
Abstract Interannual fluctuations in the abundance of young‐of‐the‐year (YOY) European perch (Perca fluviatilis) were studied in two large French peri‐alpine lakes using a 12‐year dataset of late summer hydroacoustic surveys. Previous research has highlighted the importance of temperature.
Valentin Cavoy, Jean Guillard, Cécilia Barouillet, Orlane Anneville, Najwa Sharaf, Christian Gillet, Chloé Goulon   +6 more
wiley   +1 more source

Declining Snow Resources Since 2000 in Arid Northwest China Based on Integrated Remote Sensing Indicators

Remote Sensing
Snow cover variations significantly affect the stability of regional water supply and terrestrial ecosystems in arid northwest China. This study comprehensively evaluates snow resource changes since 2000 by integrating multisource remote sensing datasets
Siyu Bai, Wei Zhang, An’an Chen, Luyuan Jiang, Xuejiao Wu, Yixue Huo   +5 more
doaj   +1 more source

Bark‐associated yeasts and their potential role as tree carbon sink at the treeline of the southern Andes

Plant Biology, EarlyView.
In the southern Andes, Nothofagus pumilio shows elevational decreases in the concentrations of carbon reserves which are the food of bark‐associated yeasts, suggesting that competition for carbohydrates between tree growth and bark‐associated yeasts may cause carbon shortages.
F. I. Piper, C. Oporto, C. Reyes‐Bahamonde, P. Moreno‐Meynard, R. F. Nespolo, L. Saona, F. A. Cubillos, A. Fajardo   +7 more
wiley   +1 more source