Results 21 to 30 of about 117,053 (296)
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
Biovalentia: Biological Research Journal, 2015 The Diversity of Reptiles on Several Habitat Types in Campus Area of Sriwijaya University Indralaya, Ogan Ilir was aimed to determine the diversity of amphibian species present in this area.
Wenny Saptalisa +2 more
doaj +1 more source
Common opossum population density in an agroforestry system in Bolivia [PDF]
Acta Amazonica, 2020 The common opossum, Didelphis marsupialis thrives near human settlements. Understanding its ecology could help planning management decisions about this species, especially in anthropogenic landscapes.
Camila BENAVIDES +2 more
doaj +1 more source
Global coverage of cetacean line-transect surveys : status quo, data gaps and future challenges [PDF]
, 2012 Knowledge of abundance, trends and distribution of cetacean populations is needed to inform marine conservation efforts, ecosystem models and spatial planning.
Harris, Catriona M +4 more
core +3 more sources
Integrated Environmental Assessment and Management, EarlyView., 2023 Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves +6 more
wiley +1 more source
Journal 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 +1 more source
Biology, 2022 Identifying appropriate indicator species for the impact of deer on forest vegetation is crucial for forest management in deer habitats and is required to be sensitive to temporal and spatial variations in deer density.
Yoshihiro Inatomi +4 more
doaj +1 more source
Journal of Threatened Taxa, 2016 To determine population status of wild animal using reliable sampling techniques forms an important component of conservation effort and effective wildlife management.
Himanshu S. Palei +2 more
doaj +1 more source
Jurnal Ilmu Kehutanan, 2009 Abundance and Diversity of Bawean Deer Foods in Bawean Wildlife Sanctuary,Bawean Island,East Java Bawean deer (Axis kuhlii) is an endemic species to Bawean.
Subeno Subeno
doaj +1 more source
Echolocation detections and digital video surveys provide reliable estimates of the relative density of harbour porpoises [PDF]
, 2016 Acknowledgements We would like to thank Erik Rexstad and Rob Williams for useful reviews of this manuscript. The collection of visual and acoustic data was funded by the UK Department of Energy & Climate Change, the Scottish Government, Collaborative ...
Beth E. Scott +10 more
core +2 more sources