Results 11 to 20 of about 13,110,839 (301)
Deriving observation distances for camera trap distance sampling [PDF]
African Journal of Ecology, 2022 Camera trap distance sampling (CTDS)o is a recently developed survey method to estimate animal abundance from camera trap data for unmarked populations.
Annika M. Zuleger, R. Holland, H. Kühl
semanticscholar +5 more sources
Journal of Statistical Software, 2016 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
semanticscholar +6 more sources
A Unifying Model for Capture-Recapture and Distance Sampling Surveys of Wildlife Populations. [PDF]
J Am Stat Assoc, 2015 A fundamental problem in wildlife ecology and management is estimation of population size or density. The two dominant methods in this area are capture–recapture (CR) and distance sampling (DS), each with its own largely separate literature. We develop a
Borchers DL +4 more
europepmc +2 more sources
Model-Based Distance Sampling [PDF]
Journal of Agricultural, Biological, and Environmental Statistics, 2016 Conventional distance sampling adopts a mixed approach, using model-based methods for the detection process, and design-based methods to estimate animal abundance in the study region, given estimated probabilities of detection. In recent years, there has
S. T. Buckland +2 more
semanticscholar +5 more sources
Integrated distance sampling models for simple point counts. [PDF]
Ecology, 2022 Point counts (PCs) are widely used in biodiversity surveys but, despite numerous advantages, simple PCs suffer from several problems: detectability, and therefore abundance, is unknown; systematic spatiotemporal variation in detectability yields biased ...
M. Kéry +5 more
semanticscholar +1 more source
A semi‐automated camera trap distance sampling approach for population density estimation
Remote Sensing in Ecology and Conservation, 2023 Camera traps have become important tools for the monitoring of animal populations. However, the study‐specific estimation of animal detection probabilities is key if unbiased abundance estimates of unmarked species are to be obtained.
Maik Henrich +6 more
semanticscholar +1 more source
Modelling density surfaces of intraspecific classes using camera trap distance sampling
Methods in Ecology and Evolution, 2023 Spatially explicit densities of wildlife are important for understanding environmental drivers of populations, and density surfaces of intraspecific classes allow exploration of links between demographic ratios and environmental conditions.
Zackary J. Delisle +2 more
semanticscholar +1 more source
Animals, 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
Frontiers 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
Oryx, 2021 Throughout the Himalaya, mountain ungulates are threatened by hunting for meat and body parts, habitat loss, and competition with livestock. Accurate population estimates are important for conservation management but most of the available methods to ...
R. Pal +4 more
semanticscholar +1 more source