Data from: Assessing cetacean populations using integrated population models: an example with Cook Inlet beluga whales
Effective conservation and management of animal populations requires knowledge of abundance and trends. For many species, these quantities are estimated using systematic visual surveys. Additional individual-level data are available for some species. Integrated population modelling (IPM) offers a me...
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ftzenodo:oai:zenodo.org:4997733 2023-05-15T15:41:45+02:00 Data from: Assessing cetacean populations using integrated population models: an example with Cook Inlet beluga whales Jacobson, Eiren Boyd, Charlotte McGuire, Tamara Shelden, Kim Himes Boor, Gina Punt, André 2020-02-12 https://zenodo.org/record/4997733 https://doi.org/10.5061/dryad.9zw3r229w unknown https://zenodo.org/communities/dryad https://zenodo.org/record/4997733 https://doi.org/10.5061/dryad.9zw3r229w oai:zenodo.org:4997733 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Bayesian statistics beluga whales cetaceans Integrated modelling state-space models info:eu-repo/semantics/other dataset 2020 ftzenodo https://doi.org/10.5061/dryad.9zw3r229w 2023-03-10T18:59:38Z Effective conservation and management of animal populations requires knowledge of abundance and trends. For many species, these quantities are estimated using systematic visual surveys. Additional individual-level data are available for some species. Integrated population modelling (IPM) offers a mechanism for leveraging these datasets into a single estimation framework. IPMs that incorporate both population- and individual-level data have previously been developed for birds, but have rarely been applied to cetaceans. Here, we explore how IPMs can be used to improve the assessment of cetacean populations. We combined three types of data that are typically available for cetaceans of conservation concern: population-level visual survey data, individual-level capture-recapture data, and data on anthropogenic mortality. We used this IPM to estimate the population dynamics of the Cook Inlet population of beluga whales (CIBW; Delphinapterus leucas) as a case study. Our state-space IPM included a population process model and three observational submodels: 1) a group detection model to describe group size estimates from aerial survey data; 2) a capture-recapture model to describe individual photographic capture-recapture data; and 3) a Poisson regression model to describe historical hunting data. The IPM produces biologically plausible estimates of population trajectories consistent with all three datasets. The estimated population growth rate since 2000 is less than expected for a recovering population. The estimated juvenile/adult survival rate is also low compared to other cetacean populations, indicating that low survival may be impeding recovery. This work demonstrates the value of integrating various data sources to assess cetacean populations and serves as an example of how multiple, imperfect datasets can be combined to improve our understanding of a population of interest. The model framework is applicable to other cetacean populations and to other taxa for which similar data types are available. ... Dataset Beluga Beluga* Delphinapterus leucas Zenodo |
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unknown |
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Bayesian statistics beluga whales cetaceans Integrated modelling state-space models |
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Bayesian statistics beluga whales cetaceans Integrated modelling state-space models Jacobson, Eiren Boyd, Charlotte McGuire, Tamara Shelden, Kim Himes Boor, Gina Punt, André Data from: Assessing cetacean populations using integrated population models: an example with Cook Inlet beluga whales |
topic_facet |
Bayesian statistics beluga whales cetaceans Integrated modelling state-space models |
description |
Effective conservation and management of animal populations requires knowledge of abundance and trends. For many species, these quantities are estimated using systematic visual surveys. Additional individual-level data are available for some species. Integrated population modelling (IPM) offers a mechanism for leveraging these datasets into a single estimation framework. IPMs that incorporate both population- and individual-level data have previously been developed for birds, but have rarely been applied to cetaceans. Here, we explore how IPMs can be used to improve the assessment of cetacean populations. We combined three types of data that are typically available for cetaceans of conservation concern: population-level visual survey data, individual-level capture-recapture data, and data on anthropogenic mortality. We used this IPM to estimate the population dynamics of the Cook Inlet population of beluga whales (CIBW; Delphinapterus leucas) as a case study. Our state-space IPM included a population process model and three observational submodels: 1) a group detection model to describe group size estimates from aerial survey data; 2) a capture-recapture model to describe individual photographic capture-recapture data; and 3) a Poisson regression model to describe historical hunting data. The IPM produces biologically plausible estimates of population trajectories consistent with all three datasets. The estimated population growth rate since 2000 is less than expected for a recovering population. The estimated juvenile/adult survival rate is also low compared to other cetacean populations, indicating that low survival may be impeding recovery. This work demonstrates the value of integrating various data sources to assess cetacean populations and serves as an example of how multiple, imperfect datasets can be combined to improve our understanding of a population of interest. The model framework is applicable to other cetacean populations and to other taxa for which similar data types are available. ... |
format |
Dataset |
author |
Jacobson, Eiren Boyd, Charlotte McGuire, Tamara Shelden, Kim Himes Boor, Gina Punt, André |
author_facet |
Jacobson, Eiren Boyd, Charlotte McGuire, Tamara Shelden, Kim Himes Boor, Gina Punt, André |
author_sort |
Jacobson, Eiren |
title |
Data from: Assessing cetacean populations using integrated population models: an example with Cook Inlet beluga whales |
title_short |
Data from: Assessing cetacean populations using integrated population models: an example with Cook Inlet beluga whales |
title_full |
Data from: Assessing cetacean populations using integrated population models: an example with Cook Inlet beluga whales |
title_fullStr |
Data from: Assessing cetacean populations using integrated population models: an example with Cook Inlet beluga whales |
title_full_unstemmed |
Data from: Assessing cetacean populations using integrated population models: an example with Cook Inlet beluga whales |
title_sort |
data from: assessing cetacean populations using integrated population models: an example with cook inlet beluga whales |
publishDate |
2020 |
url |
https://zenodo.org/record/4997733 https://doi.org/10.5061/dryad.9zw3r229w |
genre |
Beluga Beluga* Delphinapterus leucas |
genre_facet |
Beluga Beluga* Delphinapterus leucas |
op_relation |
https://zenodo.org/communities/dryad https://zenodo.org/record/4997733 https://doi.org/10.5061/dryad.9zw3r229w oai:zenodo.org:4997733 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.9zw3r229w |
_version_ |
1766374641243258880 |