Abundance estimation for line transect sampling: A comparison of distance sampling and spatial capture-recapture models
| Autor: | Timothy A. Gowan, Nathan J. Crum, Lisa C. Neyman |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Population Dynamics Marine and Aquatic Sciences Surveys Wildlife 01 natural sciences Mark and recapture Abundance (ecology) Geoinformatics Statistics Mammals education.field_of_study Abundance estimation Multidisciplinary Distance sampling Geography Simulation and Modeling Eukaryota Software Engineering Sampling (statistics) Spatial Autocorrelation Southeastern United States 010601 ecology Research Design Vertebrates Physical Sciences Engineering and Technology Medicine Right Whales Research Article Environmental Monitoring Computer and Information Sciences Science Population Marine Biology Research and Analysis Methods 010603 evolutionary biology Population Metrics Animals Marine Mammals education Transect Spatial analysis Population Density Survey Research Population Biology Software Tools Organisms Whales Biology and Life Sciences Probability Theory Probability Distribution Transect Surveys Amniotes Earth Sciences Zoology Mathematics |
| Zdroj: | PLoS ONE, Vol 16, Iss 5, p e0252231 (2021) PLoS ONE |
| ISSN: | 1932-6203 |
| Popis: | 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. Distance sampling is often used to estimate abundance from line transect survey data; however, search encounter spatial capture-recapture can also be used when individuals in the population of interest are identifiable. The search encounter spatial capture-recapture model has rarely been applied, and its performance has not been compared to that of distance sampling. We analyzed simulated datasets to compare the performance of distance sampling and spatial capture-recapture abundance estimators. Additionally, we estimated the abundance of North Atlantic right whales in the southeastern United States with two formulations of each model and compared the estimates. Spatial capture-recapture abundance estimates had lower root mean squared error than distance sampling estimates. Spatial capture-recapture 95% credible intervals for abundance had nominal coverage, i.e., contained the simulating value for abundance in 95% of simulations, whereas distance sampling credible intervals had below nominal coverage. Moreover, North Atlantic right whale abundance estimates from distance sampling models were more sensitive to model specification compared to spatial capture-recapture estimates. When estimating abundance from line transect data, researchers should consider using search encounter spatial capture-recapture when individuals in the population of interest are identifiable, when line transects are surveyed over multiple occasions, when there is imperfect detection of individuals located on the line transect, and when it is safe to assume the population of interest is closed demographically. When line transects are surveyed over multiple occasions, researchers should be aware that individual space use may induce spatial autocorrelation in counts across transects. This is not accounted for in common distance sampling estimators and leads to overly precise abundance estimates. |
| Databáze: | OpenAIRE |
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