Results 151 to 160 of about 3,232,780 (292)

Exploring sources of uncertainty in the estimate of waterfowl harvest in the United Kingdom

open access: yesWildlife Biology, EarlyView.
There is an urgent need to gather data on harvest rates of waterbirds in Europe to assess the sustainability of hunting. Estimates of total waterbird harvest in the United Kingdom (UK) and the relative harvest of different huntable species come from two separate surveys, the Value of Shooting (PACEC 2014) and National Gamebag Census (NGC), and these ...
Matthew B. Ellis   +2 more
wiley   +1 more source

Simulation-Based Spatially Explicit Close-Kin Mark-Recapture. [PDF]

open access: yesMol Ecol Resour
Patterson G   +4 more
europepmc   +1 more source

Estimating crippling loss from hunting with multistate models: a case study on northern bobwhites

open access: yesWildlife Biology, EarlyView.
Hunting as a recreational pursuit provides an important ecosystem service worldwide. Harvest management plays a vital role in regulating wildlife take to ensure long‐term population sustainability and meet value‐based objectives (e.g. hunter satisfaction). However, managers rarely have complete control or observability of harvest mortality.
Amanda S. Cramer   +10 more
wiley   +1 more source

Availability bias and responsive movement during ground‐based wildlife surveys revealed by concurrent thermal drone surveys

open access: yesWildlife Biology, EarlyView.
Methods to estimate abundance from unmarked populations of animals are widely used because of their efficiency and presumed accuracy. These methods account for imperfect detection by comparing observed data against the assumed distribution of the entire population.
David M. Delaney   +2 more
wiley   +1 more source

Close-Kin Mark-Recapture Models

open access: yes, 2019
Close-Kin Mark-Recapture (CKMR) is a recent extension of the ordinary mark–recapture methods used to estimate animal abundance and other population parameters. Where ordinary mark–recapture only consider the subsequent identification of the same animal a recapture, CKMR expands this by also viewing the genetic identification of a relatives as a ...
openaire   +1 more source

From field to lab, facilitating non‐invasive genetic survey. Lessons from an arctic bird living at the edge, the rock ptarmigan in the French Alps

open access: yesWildlife Biology, EarlyView.
The rock ptarmigan Lagopus muta is an elusive species whose monitoring is hindered by its cryptic behavior and the difficulty in accessing its high‐elevation habitats. Although non‐invasive genetic sampling offers a promising alternative, its effectiveness can be constrained by DNA degradation and environmental conditions.
Emeline Charbonnel   +4 more
wiley   +1 more source

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