Results 71 to 80 of about 11,726 (246)

Microclimate mediates the strength and direction of avian biotic interactions

Ecography, EarlyView.
Theory predicts that the strength and direction of species interactions can shift from being competitive in benign environments toward being facilitative in stressful environments. However, the environmental context dependency of species interactions has rarely been tested in animal communities.
Sarah J. K. Frey, Brian D. Gerber, Adam S. Hadley, Hankyu Kim, Madison Sutton, Nina C. Ferrari, Matthew G. Betts   +6 more
wiley   +1 more source

GeoAI Dataset for Training a Deep Learning-based GEMS Snow Detection Model [PDF]

Geo Data
The Geostationary Environment Monitoring Spectrometer (GEMS) observes air quality across East Asia from an altitude of approximately 36,000 km, analyzing the spatiotemporal distribution of atmospheric pollutants that spread beyond localized regions. GEMS
Jin-Woo Yu, Jun-Hyeok Jung, Kyoung-Hee Kang, Yong-Mi Lee, Hyung-Sup Jung   +4 more
doaj   +1 more source

Responses of Antarctic seabird populations to past climate change

Ecography, EarlyView.
Higher‐order predators such as Antarctic seabirds serve as ecological indicators of environmental change and provide a crucial trophic link between marine and terrestrial ecosystems. Despite their prevalence and significance in the Antarctic ecosystem, there is a lack of understanding of the impacts of major regime shifts in paleoclimate on flighted ...
Elize Y. X. Ng, Louise Emmerson, Barbara Wienecke, Fabiola León Miranda, Colin Southwell, Juliana A. Vianna, Christopher P. Burridge   +6 more
wiley   +1 more source

Climate change and snow tourism in Australia [PDF]

Geographica Helvetica
This paper examines impacts of climate change as outlined by the Intergovernmental Panel of Climate Change (IPCQ on the snow-reliability ofthe Australian ski fields.
U. König
doaj   +1 more source

Topography constrains the climatic response of treeline migration in Taiwan's subalpine forests

Ecography, EarlyView.
Treelines are moving upslope, but the rates and drivers differ among different regions, globally. Many studies have examined the relationship between treeline movement and climate change, particularly rising temperature, while the role of topographical factors has received much less attention, despite the longstanding recognition of its importance.
Kuan‐Yu Chen, Jonathan Peereman, J. Aaron Hogan, Teng‐Chiu Lin   +3 more
wiley   +1 more source

Comprehensive simulation of snow crystal deposition and electric field characteristics of composite sheath improved porcelain cantilever insulator in a wind and snow environment

Journal of Measurement Science and Instrumentation, 2022
The installed porcelain insulators on existing railway lines in China are prone to "snow flash" in winter. In order to prevent the occurrence of "snow flash" and improve the reliability of the insulators, a composite-porcelain insulator is designed.
SHENG Wangqun, LI Gang, LI Yanzhe, LI Baoxue, ZHAO Shanpeng   +4 more
doaj  

Faster growing and more functionally diverse: global change alters functional trait composition of mountain plant communities in the European Alps

Ecography, EarlyView.
Understanding how global change reshapes mountain plant communities is essential for predicting biodiversity and ecosystem function in a warming world. Using resurvey data from over 1400 non‐forest vegetation plots across the European Alps, we show that community‐weighted means of key functional traits capturing important dimensions of plant ecological
Sergey Rosbakh, Sabine B. Rumpf, Stefan Dullinger   +2 more
wiley   +1 more source

Reliably flattened radar backscatter for wet snow mapping from wide-swath sensors

, 2013
Retrieval of wet snow extent with high temporal resolution over large areas that include topography requires use of wide swath SAR and radiometric terrain correction to enable backscatter comparisons across different orbital tracks. We report on springtime wet snow mapping using a time series of Envisat ASAR wide swath (WS) images covering the Swiss ...
Small, David, Miranda, Nuno, Ewen, Tracy, Jonas, Tobias   +3 more
openaire   +2 more sources

The dual influence of top‐down and bottom‐up processes on a mesopredator and the consequences for prey

Ecography, EarlyView.
Ecosystem dynamics are shaped by interacting top‐down and bottom‐up processes, yet their relative importance may vary through time following disturbances such as disease outbreaks and changes in apex predator communities. Using a 52‐year time series in south‐central Sweden, we examined how disease, apex predators, and prey availability jointly impact a
Camilla Wikenros, Emelie Sabrie, , Gunnar Jansson, Henrik Andrén   +4 more
wiley   +1 more source

Enhanced Tire–Snow Sinkage Modeling for Optimized Electric Vehicle Traction Control in Northern China Snow Conditions

World Electric Vehicle Journal
The interaction between tires and snow layer is fundamental for vehicle safety on snowy roads. Due to the instantaneous high torque output characteristics of electric vehicles, they are more prone to slipping when driving in snow, which exacerbates the ...
Jingyi Gu, Bo Li, Shaoyi Bei, Chenyu Hu
doaj   +1 more source