Results 1 to 10 of about 13,110,690 (162)

Statistical Efficiency in Distance Sampling. [PDF]

open access: yesPLoS ONE, 2016
Distance sampling is a technique for estimating the abundance of animals or other objects in a region, allowing for imperfect detection. This paper evaluates the statistical efficiency of the method when its assumptions are met, both theoretically and by
Robert Graham Clark
doaj   +3 more sources

Distance sampling surveys reveal 17 million vertebrates directly killed by the 2020's wildfires in the Pantanal, Brazil. [PDF]

open access: yesSci Rep, 2021
Anthropogenic factors have significantly influenced the frequency, duration, and intensity of meteorological drought in many regions of the globe, and the increased frequency of wildfires is among the most visible consequences of human-induced climate ...
Tomas WM   +29 more
europepmc   +2 more sources

Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models. [PDF]

open access: yesPLoS One, 2021
Accurate and precise abundance estimation is vital for informed wildlife conservation and management decision-making. Line transect surveys are a common sampling approach for abundance estimation.
Crum NJ, Neyman LC, Gowan TA.
europepmc   +2 more sources

Assessing mammal population densities in response to urbanization using camera trap distance sampling [PDF]

open access: yesEcology and Evolution, 2023
Environmental filtering is deemed to play a predominant role in regulating the abundance and distribution of animals during the urbanization process.
Zhilin Li   +9 more
doaj   +2 more sources

Accurate population estimation of Caprinae using camera traps and distance sampling. [PDF]

open access: yesSci Rep, 2020
With most of the world’s Caprinae taxa threatened with extinction, the IUCN appeals to the development of simple and affordable sampling methods that will produce credible abundance and distribution data for helping conserve these species inhabiting ...
Harris GM   +4 more
europepmc   +2 more sources

Distance sampling of duikers in the rainforest: Dealing with transect avoidance. [PDF]

open access: yesPLoS One, 2020
Bushmeat is a major source of protein and income in tropical regions but is often over-harvested. A better monitoring of bushmeat stocks could help achieve sustainability.
Elenga G, Bonenfant C, Péron G.
europepmc   +2 more sources

Distance sampling for epidemiology: an interactive tool for estimating under-reporting of cases from clinic data. [PDF]

open access: yesInt J Health Geogr, 2020
Background Distance sampling methods are widely used in ecology to estimate and map the abundance of animal and plant populations from spatial survey data.
Nelli L   +6 more
europepmc   +2 more sources

Mixture models for distance sampling detection functions. [PDF]

open access: yesPLoS ONE, 2015
We 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.
David L Miller, Len Thomas
doaj   +2 more sources

Incorporating animal movement into distance sampling [PDF]

open access: yes, 2020
R. Glennie gratefully acknowledges the Carnegie Trust for funding his work on this research project.Distance sampling is a popular statistical method to estimate the density of wild animal populations. Conventional distance sampling represents animals as
Ballance, Lisa   +6 more
core   +3 more sources

The "Tracked Roaming Transect" and distance sampling methods increase the efficiency of underwater visual censuses. [PDF]

open access: yesPLoS 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 ...
Irigoyen AJ   +5 more
europepmc   +2 more sources

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