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
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 +6 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
Accounting for subgroup structure in line-transect abundance estimates of false killer whales (Pseudorca crassidens) in Hawaiian waters. [PDF]
PLoS ONE, 2014 For biological populations that form aggregations (or clusters) of individuals, cluster size is an important parameter in line-transect abundance estimation and should be accurately measured.
Amanda L Bradford +3 more
doaj +2 more sources
Quantifying Wildlife Abundance: Negative Rayleigh Modeling of Line Transect Data
MathematicsThis study introduces a negative Rayleigh detection model for estimating population abundance in line transect surveys. The model satisfies key detection conditions and provides a detailed analysis of its probability density function, moments, and other ...
Abdullah M. Almarashi
exaly +3 more sources
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
Floodplain Forests and Urban Parks – A Brief Comparison of Bird Diversity
Journal of Landscape Ecology, 2021 Urbanization in cultural landscapes generally tends to select for omnivorous, granivorous, and cavity/hole nesting bird species in green urban areas. Studies on bird diversity in the cities are important to better understanding to the ecology of urban ...
Machar Ivo +3 more
doaj +1 more source
Double Kernel Method Using Line Transect Sampling
Austrian Journal of Statistics, 2016 A double kernel method as an alternative to the classical kernel method is proposed to estimate the population abundance by using line transect sampling.
Omar Eidous, M.K. Shakhatreh
doaj +1 more source
Hyper abundant mesopredators and bird extinction in an Atlantic forest island
Zoologia (Curitiba), 2009 Islands can serve as model systems for understanding how biological invasions affect native species. Here we examine the negative effects of mesopredator mammals on bird richness at Anchieta Island, an 826 ha offshore island in the coast of Brazil ...
Mauro Galetti +7 more
doaj +1 more source