Estimating reproductive and juvenile survival rates when offspring ages are uncertain: A novel multievent mark‐resight model with beluga whale case study
Abstract Understanding the survival and reproductive rates of a population is critical to determining its long‐term dynamics and viability. Mark‐resight models are often used to estimate these demographic rates, but estimation of survival and reproductive rates is challenging, especially for wide‐ra...
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ftdoajarticles:oai:doaj.org/article:d836121caf97427c8501d39958923b34 2023-08-27T04:08:43+02:00 Estimating reproductive and juvenile survival rates when offspring ages are uncertain: A novel multievent mark‐resight model with beluga whale case study Gina K. Himes Boor Tamara L. McGuire Amanda J. Warlick Rebecca L. Taylor Sarah J. Converse John R. McClung Amber D. Stephens 2023-02-01T00:00:00Z https://doi.org/10.1111/2041-210X.14032 https://doaj.org/article/d836121caf97427c8501d39958923b34 EN eng Wiley https://doi.org/10.1111/2041-210X.14032 https://doaj.org/toc/2041-210X 2041-210X doi:10.1111/2041-210X.14032 https://doaj.org/article/d836121caf97427c8501d39958923b34 Methods in Ecology and Evolution, Vol 14, Iss 2, Pp 631-642 (2023) Bayesian analysis endangered Cook Inlet beluga whale extended parental care juvenile survival rate multievent mark‐recapture model photo‐ID data Ecology QH540-549.5 Evolution QH359-425 article 2023 ftdoajarticles https://doi.org/10.1111/2041-210X.14032 2023-08-06T00:47:09Z Abstract Understanding the survival and reproductive rates of a population is critical to determining its long‐term dynamics and viability. Mark‐resight models are often used to estimate these demographic rates, but estimation of survival and reproductive rates is challenging, especially for wide‐ranging, patchily distributed, or cryptic species. In particular, existing mark‐resight models cannot accommodate data from populations in which offspring remain with parents for multiple years, are not always detected, and cannot be aged with certainty. Here we describe a Bayesian multievent mark‐resight modelling framework that uses all available adult and adult‐offspring sightings (including sightings with older offspring of uncertain age) to estimate reproductive rates and survival rates of adults and juveniles. We extend existing multievent mark‐resight models that typically only incorporate adult breeding state uncertainty by additionally accounting for age uncertainty in unmarked offspring and uncertainty in the duration of the mother‐offspring association. We describe our model in general terms and with a simple illustrative example, then apply it in a more complex empirical setting using 13 years of photo‐ID data from a critically endangered population of beluga whales Delphinapterus leucas. We evaluated model performance using simulated data under a range of sample sizes, and adult and offspring detection rates. Applying our model to the beluga data yielded precise estimates for all demographic rates of interest (despite substantial uncertainty in calf ages), including nonbreeder survival and reproductive rates lower than in other beluga populations. Simulations suggested our model yields asymptotically unbiased parameter estimates with good precision and low bias even with moderate sample sizes and detection rates. This work represents an important new development in multievent mark‐resight modelling, allowing estimation of reproductive and juvenile survival rates for populations with extended adult—offspring ... Article in Journal/Newspaper Beluga Beluga whale Beluga* Delphinapterus leucas Directory of Open Access Journals: DOAJ Articles Methods in Ecology and Evolution 14 2 631 642 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Bayesian analysis endangered Cook Inlet beluga whale extended parental care juvenile survival rate multievent mark‐recapture model photo‐ID data Ecology QH540-549.5 Evolution QH359-425 |
spellingShingle |
Bayesian analysis endangered Cook Inlet beluga whale extended parental care juvenile survival rate multievent mark‐recapture model photo‐ID data Ecology QH540-549.5 Evolution QH359-425 Gina K. Himes Boor Tamara L. McGuire Amanda J. Warlick Rebecca L. Taylor Sarah J. Converse John R. McClung Amber D. Stephens Estimating reproductive and juvenile survival rates when offspring ages are uncertain: A novel multievent mark‐resight model with beluga whale case study |
topic_facet |
Bayesian analysis endangered Cook Inlet beluga whale extended parental care juvenile survival rate multievent mark‐recapture model photo‐ID data Ecology QH540-549.5 Evolution QH359-425 |
description |
Abstract Understanding the survival and reproductive rates of a population is critical to determining its long‐term dynamics and viability. Mark‐resight models are often used to estimate these demographic rates, but estimation of survival and reproductive rates is challenging, especially for wide‐ranging, patchily distributed, or cryptic species. In particular, existing mark‐resight models cannot accommodate data from populations in which offspring remain with parents for multiple years, are not always detected, and cannot be aged with certainty. Here we describe a Bayesian multievent mark‐resight modelling framework that uses all available adult and adult‐offspring sightings (including sightings with older offspring of uncertain age) to estimate reproductive rates and survival rates of adults and juveniles. We extend existing multievent mark‐resight models that typically only incorporate adult breeding state uncertainty by additionally accounting for age uncertainty in unmarked offspring and uncertainty in the duration of the mother‐offspring association. We describe our model in general terms and with a simple illustrative example, then apply it in a more complex empirical setting using 13 years of photo‐ID data from a critically endangered population of beluga whales Delphinapterus leucas. We evaluated model performance using simulated data under a range of sample sizes, and adult and offspring detection rates. Applying our model to the beluga data yielded precise estimates for all demographic rates of interest (despite substantial uncertainty in calf ages), including nonbreeder survival and reproductive rates lower than in other beluga populations. Simulations suggested our model yields asymptotically unbiased parameter estimates with good precision and low bias even with moderate sample sizes and detection rates. This work represents an important new development in multievent mark‐resight modelling, allowing estimation of reproductive and juvenile survival rates for populations with extended adult—offspring ... |
format |
Article in Journal/Newspaper |
author |
Gina K. Himes Boor Tamara L. McGuire Amanda J. Warlick Rebecca L. Taylor Sarah J. Converse John R. McClung Amber D. Stephens |
author_facet |
Gina K. Himes Boor Tamara L. McGuire Amanda J. Warlick Rebecca L. Taylor Sarah J. Converse John R. McClung Amber D. Stephens |
author_sort |
Gina K. Himes Boor |
title |
Estimating reproductive and juvenile survival rates when offspring ages are uncertain: A novel multievent mark‐resight model with beluga whale case study |
title_short |
Estimating reproductive and juvenile survival rates when offspring ages are uncertain: A novel multievent mark‐resight model with beluga whale case study |
title_full |
Estimating reproductive and juvenile survival rates when offspring ages are uncertain: A novel multievent mark‐resight model with beluga whale case study |
title_fullStr |
Estimating reproductive and juvenile survival rates when offspring ages are uncertain: A novel multievent mark‐resight model with beluga whale case study |
title_full_unstemmed |
Estimating reproductive and juvenile survival rates when offspring ages are uncertain: A novel multievent mark‐resight model with beluga whale case study |
title_sort |
estimating reproductive and juvenile survival rates when offspring ages are uncertain: a novel multievent mark‐resight model with beluga whale case study |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1111/2041-210X.14032 https://doaj.org/article/d836121caf97427c8501d39958923b34 |
genre |
Beluga Beluga whale Beluga* Delphinapterus leucas |
genre_facet |
Beluga Beluga whale Beluga* Delphinapterus leucas |
op_source |
Methods in Ecology and Evolution, Vol 14, Iss 2, Pp 631-642 (2023) |
op_relation |
https://doi.org/10.1111/2041-210X.14032 https://doaj.org/toc/2041-210X 2041-210X doi:10.1111/2041-210X.14032 https://doaj.org/article/d836121caf97427c8501d39958923b34 |
op_doi |
https://doi.org/10.1111/2041-210X.14032 |
container_title |
Methods in Ecology and Evolution |
container_volume |
14 |
container_issue |
2 |
container_start_page |
631 |
op_container_end_page |
642 |
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1775349582390099968 |