Results 121 to 130 of about 57,621 (286)
PLoS ONE, 2015 Recent research reports that many populations of species showing a wide trophic niche (generalists) are made up of both generalist individuals and individuals with a narrow trophic niche (specialists), suggesting trophic specializations at an individual ...
Juan Navarro-López +1 more
doaj +1 more source
Exaptation and emergence as mechanisms to cross fitness valleys during evolution: an example using simulated homing behaviour [PDF]
, 2008 Evolution is often considered a gradual hill climbing process, slowly increasing the fitness of organisms. I investigate the evolution of homing behaviour in simulated intertidal limpets.
Richard Stafford
core +1 more source
Borax Promotes Fertility of Brassica napus Better Than Other Boron Species at Suboptimal Supply
Journal of Plant Nutrition and Soil Science, EarlyView.ABSTRACT Background Continuous and sufficient boron (B) supply is essential for achieving maximum yield in Brassica napus. Increasing incidences of environmental water limitation are linked to reduced plant B availability and increased B deficiencies.
Jiline B. Tölle +2 more
wiley +1 more source
Ecology and EvolutionOptimal foraging theory (OFT) predicts that animals employ foraging strategies that maximize a particular currency, such as net energetic efficiency, to meet their nutritional demands. Two nonexclusive patterns that arise from OFT are convergence on high‐
Bradley D. Ohlinger +3 more
doaj +1 more source
Do eagle owls select larger water voles?
Fauna NorvegicaOptimal foraging theory predicts that a hunter should hunt the energetically most profitable prey, often the larger size classes. The eagle owl is a formidable hunter of water voles.
Karl Frafjord
doaj +1 more source
Synergistic effects of maize defoliation and common bean relay cropping in Western Ethiopia
JSFA reports, EarlyView.Abstract Background Maize defoliation is practiced to enhance crop management by improving light penetration, nutrient allocation, controlling weeds, and providing supplementary feeds for livestock. A rapid decline in soil fertility and low crop yields associated with maize‐based monocropping has prompted the recent introduction of maize common bean ...
Alemayehu Dabesa +2 more
wiley +1 more source
Biological ControlForaging behavior determines natural enemies’ predation capacity and biological control efficacy. Prey density significantly affects their foraging behavior. Studying predator foraging under different prey densities with movement process analysis reveals
Chen Fang +6 more
doaj +1 more source
Density‐dependent habitat selection in plains bison
The Journal of Wildlife Management, EarlyView.Using GPS collar data, we tested whether habitat selection of plains bison in Grasslands National Park, Canada, was density dependent. Bison selected for areas of high vegetation productivity far from human activity when population density was low and increased use of lower productivity habitat closer to disturbance as density increased.
Michelle L. Sawatzky +3 more
wiley +1 more source
Unravelling the decision making of foraging vultures: insights from a field experiment
Royal Society Open ScienceOptimal Foraging Theory (OFT) integrates both the consumer and the resource, yet their simultaneous assessment is uncommon. Vultures represent an ideal model for OFT studies because carrion requires no capture effort and minimal handling, allowing them ...
Eneko Arrondo +9 more
doaj +1 more source
The Journal of Wildlife Management, EarlyView.Plethodon welleri exhibits strong seasonal shifts in elevational activity with abundance and occupancy being linked to terrain characteristics. Despite historical habitat assumptions, P. welleri occurs in a broad range of forest types across a larger elevation gradient. Photo Credit to Maxwell Ramey.
Rosemary Ronca +2 more
wiley +1 more source