Results 201 to 210 of about 722,950 (284)
Wildlife Biology, EarlyView.One of the most difficult challenges for wildlife managers is reliably estimating wildlife populations. Camera traps combined with spatial capture–recapture (SCR) models are a popular tool for population estimation. They have limitations, however, including long data processing times.
Shannon P. Finnegan +5 more
wiley +1 more source
Maximizing the detection probabilities of dusky grouse for population monitoring
Wildlife Biology, EarlyView.Despite its status as a game species in the western USA, rigorous monitoring of dusky grouse Dendragapus obscurus populations is limited. Obtaining an adequate number of observations for effective population monitoring of dusky grouse is challenging due to difficult‐to‐reach montane habitats, cryptic behaviors, and limited personnel, time, and funds at
Elizabeth A. Leipold +2 more
wiley +1 more source
Wildlife Biology, EarlyView.Reliable abundance estimates provide essential information in ecology, conservation and management of many wild grouse populations. In this 3‐year study, we comparatively evaluate the suitability of traditional line transect distance sampling of flushed birds versus a spatial capture–recapture survey with noninvasive DNA samples for individual ...
Henrik Brøseth +2 more
wiley +1 more source
Field test of assumptions for using line transect distance sampling on rock ptarmigan
Wildlife Biology, EarlyView.Reliable population estimates are essential for the management of harvested species. Line transect distance sampling using pointing dogs is an established survey method for willow ptarmigan and has also been proposed for the monitoring of rock ptarmigan.
Marius Kjønsberg +3 more
wiley +1 more source
Selected results from socio-ecological participatory situation assessments in two sites in Central Northern Namibia [PDF]
, 2008 Deffner, Jutta +5 more
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Wildlife Biology, EarlyView.Many bird species are monitored using auditory point count surveys during the breeding season. Autonomous recording units (ARUs) can be used to better understand the daily and seasonal timing of when a species is vocalizing, which can help align surveys with the time period when the maximum number of individuals are present. We used ARUs to improve our
K. M. Walton +5 more
wiley +1 more source
Experimental assessment of large mammal population estimates from airborne thermal videography
Wildlife Biology, EarlyView.Wildlife resource management requires reliable, fast, and affordable methods of surveying wildlife populations to develop and adaptively adjust policies. Thermal video from drones can yield high rates of detection over large areas with relative speed and safety.
Julia S. McElhinny +7 more
wiley +1 more source
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Flowering phenology is central to plant reproductive success and can relate to morphological traits such as size and quality of flowers, but phenology–trait associations of flowers remain unclear.
Mustaqeem Ahmad +2 more
wiley +1 more source
Generation cycles in experimental populations of a multivoltine insect
Journal of Animal Ecology, EarlyView.Although theory suggests various mechanisms by which environmental and ecological factors may drive generational fluctuations, our field‐cage experiment is the first to demonstrate how internal dynamics and external disturbances jointly produce synchronised, large‐scale outbreak cycles.
Takehiko Yamanaka +3 more
wiley +1 more source
The Impact of Credit and Training on Farmers Efficiency: A Semi‐Parametric Meta‐Frontier Analysis
Australian Journal of Agricultural and Resource Economics, EarlyView.ABSTRACT Smallholder farmers in developing countries face several constraints, which affect their productivity. To reduce these constraints and enhance productivity, government and non‐governmental agencies implement programmes that provide credit and training to farmers.
Anthony Baffoe‐Bonnie +1 more
wiley +1 more source