Results 11 to 20 of about 6,368,094 (187)
Ecology and Evolution, 2021 The purpose of many wildlife population studies is to estimate density, movement, or demographic parameters. Linking these parameters to covariates, such as habitat features, provides additional ecological insight and can be used to make predictions for ...
Timothy A. Gowan +2 more
doaj +1 more source
Line transect sampling of primates : can animal-to-observer distance methods work? [PDF]
, 2010 An erratum to this article can be found at http://dx.doi.org/10.1007/s10764-010-9469-4Line transect sampling is widely used for estimating abundance of primate populations.
Eric A. Rexstad +11 more
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Design and analysis of line transect surveys for primates [PDF]
, 2010 An erratum to this article can be found at http://dx.doi.org/10.1007/s10764-010-9470-yLine transect surveys are widely used for estimating abundance of primate populations. The method relies on a small number of key assumptions, and if these are not met,
Eric A. Rexstad +8 more
core +1 more source
Designing a shipboard line transect survey to estimate cetacean abundance off the Azores Archipelago, Portugal [PDF]
, 2009 Revised version November 2008. MRes in Marine Mammal ScienceManagement schemes dedicated to the conservation of wildlife populations rely on the effective monitoring of population size, and this requires the accurate and precise estimation of abundance ...
Faustino, Cláudia Estevinho Santos
core +2 more sources
The "Tracked Roaming Transect" and distance sampling methods increase the efficiency of underwater visual censuses. [PDF]
PLoS ONE, 2018 Underwater visual census (UVC) is the most common approach for estimating diversity, abundance and size of reef fishes in shallow and clear waters. Abundance estimation through UVC is particularly problematic in species occurring at low densities and/or ...
Alejo J Irigoyen +5 more
doaj +1 more source
Improving aquatic warbler population assessments by accounting for imperfect detection.
PLoS ONE, 2014 Monitoring programs designed to assess changes in population size over time need to account for imperfect detection and provide estimates of precision around annual abundance estimates.
Steffen Oppel +3 more
doaj +1 more source
Bayesian methods for hierarchical distance sampling models [PDF]
, 2014 Cornelia S. Oedekoven was supported by a studentship jointly funded by the University of St Andrews and EPSRC (EPSRC grant EP/C522702/1), through the National Centre for Statistical Ecology.The few distance sampling studies that use Bayesian methods ...
Oedekoven, Cornelia Sabrina +11 more
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Mixture models for distance sampling detection functions [PDF]
, 2015 Funding: EPSRC DTGWe present a new class of models for the detection function in distance sampling surveys of wildlife populations, based on finite mixtures of simple parametric key functions such as the half-normal. The models share many of the features
David L. Miller (167484) +8 more
core +2 more sources
Wildlife Society Bulletin, 2014 Population assessment is a primary component of ungulate management, but managers are continuously under pressure to reduce survey cost. Another concern in aerial surveys is accounting for undetected animals (i.e., visibility bias).
Wibke Peters +7 more
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Zoologia (Curitiba), 2018 The spotted paca, Cuniculus paca (Linnaeus, 1766), is a Neotropical, opportunistic, frugivorous caviomorph rodent, that inhabits primarily broadleaf forests. We aimed to provide the first estimates of density of C.
Átilla C. Ferreguetti +2 more
doaj +1 more source