Results 1 to 10 of about 1,870,807 (288)

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   +6 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   +7 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

Distance Sampling in R [PDF]

open access: yesJournal of Statistical Software, 2019
Estimating the abundance and spatial distribution of animal and plant populations is essential for conservation and management. We introduce the R package Distance that implements distance sampling methods to estimate abundance. We describe how users can
David L. Miller   +4 more
doaj   +5 more sources

Incorporating Animal Movement Into Distance Sampling [PDF]

open access: yesJournal of the American Statistical Association, 2020
Distance sampling is a popular statistical method to estimate the density of wild animal populations.
R. Glennie   +6 more
openaire   +6 more sources

Deriving observation distances for camera trap distance sampling [PDF]

open access: yesAfrican Journal of Ecology, 2022
AbstractCamera trap distance sampling (CTDS)o is a recently developed survey method to estimate animal abundance from camera trap data for unmarked populations. It requires the estimation of camera‐animal observation distances, which previously was done by comparing animal positions to reference labels at predefined intervals.
Annika M. Zuleger   +2 more
openaire   +4 more sources

Modelling the Relative Abundance of Roe Deer (Capreolus capreolus L.) along a Climate and Land-Use Gradient

open access: yesAnimals, 2022
European roe deer (Capreolus capreolus L.) are important given their economic, recreational and ecological value. However, uncontrolled roe deer numbers can result in negative impacts on forest regeneration and agricultural crops, disease transmission ...
Caryl S. Benjamin   +15 more
doaj   +1 more source

Free-Roaming Dog Surveys in Quito, Ecuador: Experiences, Lessons Learned, and Future Work

open access: yesFrontiers in Veterinary Science, 2021
The selection of a survey method of free-roaming dog populations should be based on analyses of local capacities and management priorities. Here, we compare the results of surveys of the stray dog population in Quito, Ecuador, using two different ...
Max Cárdenas   +3 more
doaj   +1 more source

Estimating abundance of an elusive cetacean in a complex environment: Harbor porpoises (Phocoena phocoena) in inland waters of Southeast Alaska

open access: yesFrontiers in Marine Science, 2022
The harbor porpoise (Phocoena phocoena) is common in temperate waters of the eastern North Pacific Ocean, including Southeast Alaska inland waters, a complex environment comprised of open waterways, narrow channels, and inlets.
Alexandre N. Zerbini   +6 more
doaj   +1 more source

Model-Based Distance Sampling [PDF]

open access: yesJournal of Agricultural, Biological, and Environmental Statistics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Buckland, Stephen Terrence   +2 more
openaire   +4 more sources

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