Results 1 to 10 of about 4,209,032 (298)
The effect of animal movement on line transect estimates of abundance. [PDF]
PLoS ONE, 2015 Line transect sampling is a distance sampling method for estimating the abundance of wild animal populations. One key assumption of this method is that all animals are detected at their initial location.
Richard Glennie +2 more
doaj +8 more sources
Biodiversity survey and estimation for line-transect sampling [PDF]
Frontiers in Plant Science, 2023 Conducting biodiversity surveys using a fully randomised design can be difficult due to budgetary constraints (e.g., the cost of labour), site accessibility, and other constraints.
Youhua Chen +2 more
doaj +4 more sources
Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models. [PDF]
PLoS 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.
Nathan J Crum +2 more
doaj +2 more sources
An open spatial capture–recapture model for estimating density, movement, and population dynamics from line‐transect surveys [PDF]
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 +2 more sources
Line Transect Sampling in Small Regions
Biometrics, 2001 This article develops an approach to estimating population abundance from line transect surveys that uses a calibration survey to estimate the detection function, which is then employed as a weight function in constructing the abundance estimate. Nonparametric methods of estimating the detection function via local regression and via a kernel density ...
Alan Welsh
exaly +5 more sources
Double-Observer Line Transect Methods: Levels of Independence
Biometrics, 2010 SummaryDouble‐observer line transect methods are becoming increasingly widespread, especially for the estimation of marine mammal abundance from aerial and shipboard surveys when detection of animals on the line is uncertain. The resulting data supplement conventional distance sampling data with two‐sample mark–recapture data.
David L Borchers +2 more
exaly +6 more sources
Jurnal Ilmiah Platax, 2022 In the last few decades, coral reef ecosystem has been under significant pressure due to anthropogenic impacts and naturally driven factors. The coral reef ecosystem is unique because it has very high biodiversity and many organisms depend on its ...
Dedy Octavian Siahaan +3 more
doaj +1 more source
Changes in Woody Vegetation over 31 Years in Farmed Parkland of the Central Plateau, Burkina Faso
Land, 2021 Farmed parklands of the Central Plateau, Burkina Faso, integrate native woody vegetation with managed cropland. However, sapling survival in the parklands is increasingly threatened. This study characterized woody vegetation abundance along a 2.7 km long
Koichi Takenaka +5 more
doaj +1 more source
Journal of Threatened Taxa, 2023 Demographic research utilizing vital rates and life tables is a standard aspect of planning protection and management strategies for wildlife populations. The Blackbuck Antilope cervicapra population at Point Calimere Wildlife Sanctuary, Tamil Nadu, has
Subhasish Arandhara +3 more
doaj +1 more source
Animal Biodiversity and Conservation, 2020 Assemblages of medium and large–sized mammals were studied in the Guyana shield of the Brazilian Amazonia. Diurnal and nocturnal line–transect samplings were carried out via the line–transect method in five different forest types along a 10–km transect,
A. R. Mendes Pontes +3 more
doaj +1 more source