Results 91 to 100 of about 3,644,068 (320)
Autumn bird migration phenology: A potpourri of wind, precipitation and temperature effects
Global Change Biology, 2019 Climate change has caused a clear and univocal trend towards advancement in spring phenology. Changes in autumn phenology are much more diverse, with advancement, delays, and ‘no change' all occurring frequently.
B. Haest, O. Huppop, M. Pol, F. Bairlein
semanticscholar +1 more source
Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios +4 more
wiley +1 more source
Consistency of spatio‐temporal patterns of avian migration across the Swiss lowlands
Remote Sensing in Ecology and Conservation, 2020 Each year, billions of birds migrate across the continents by day and night through airspaces increasingly altered by human activity, resulting in the deaths of millions of birds every year through collisions with man‐made structures.
Philippe Tschanz +4 more
doaj +1 more source
Bird species richness and diversity at montane Important Bird Area (IBA) sites in south-eastern Nigeria [PDF]
, 2010 The mountains of south-eastern Nigeria are a western extension of the Cameroon mountain range, which is classified as an endemic bird area (EBA). Unlike its eastern extension in Cameroon, most of the ornithological surveys in the western extension of the
Imong, I. S., Cresswell, Will, Manu, S
core +1 more source
Advanced Intelligent Systems, EarlyView.A volatile‐switching compact model of electrochemical metallization memory cells for neuromorphic architecture is developed and validated by reliable reproduction of device characterization measurements: I−V sweeps, SET kinetics, relaxation dynamics.
Rana Walied Ahmad +4 more
wiley +1 more source
The Auk, 1884 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
bioRxiv, 2019 Quantifying nocturnal bird migration at high resolution is essential for (1) understanding the phenology of migration and its drivers, (2) identifying critical spatio-temporal protection zones for migratory birds, and (3) assessing the risk of collision ...
Raphäel Nussbaumer +5 more
semanticscholar +1 more source
Farm labor scarcity and its uneven impacts on crop producers in the United States
American Journal of Agricultural Economics, EarlyView.Abstract This study is the first to evaluate the impacts of farm labor scarcity on producers in the United States across different crop production systems. Between 2002 and 2017, we disentangle the effects of labor scarcity from the impacts of rising commodity demand, technological change, and supply of other inputs on labor market outcomes.
Srabashi Ray +4 more
wiley +1 more source
The global ecology of bird migration: patterns and processes
Frontiers of Biogeography, 2016 Nearly 20% of bird species are migratory, their seasonal movements causing a redistribution of bird diversity that radically changes avian community composition worldwide.
Marius Somveille
doaj +1 more source
Ecology and EvolutionBirds time their life cycle events to favourable windows in environmental conditions. In tropical environments, where photoperiod variation is small, birds show high variability in the timing of life cycle stages, yet these species have been severely ...
Crinan Jarrett +10 more
doaj +1 more source