Data from: An integrated approach to historical population assessment of the great whales: case of the New Zealand southern right whale
Accurate estimation of historical abundance provides an essential baseline for judging the recovery of the great whales. This is particularly challenging for whales hunted prior to twentieth century modern whaling, as population-level catch records are often incomplete. Assessments of whale recovery...
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fttriple:oai:gotriple.eu:50|dedup_wf_001::4bfa6ec6e07f385bf06075f5bf8b7618 2023-05-15T14:03:58+02:00 Data from: An integrated approach to historical population assessment of the great whales: case of the New Zealand southern right whale Jackson, Jennifer A. Carroll, Emma L. Smith, Tim D. Zerbini, Alex N. Patenaude, Nathalie J. Baker, C. Scott 2020-07-03 https://doi.org/10.5061/dryad.c3s62 undefined unknown http://dx.doi.org/10.5061/dryad.c3s62 https://dx.doi.org/10.5061/dryad.c3s62 lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:92737 10.5061/dryad.c3s62 oai:easy.dans.knaw.nl:easy-dataset:92737 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Life sciences medicine and health care whaling historical abundance bottleneck Eubalaena recovery 200 years southern right whale population dynamics Southwest Pacific New Zealand Sub-Antarctic Auckland Islands envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2020 fttriple https://doi.org/10.5061/dryad.c3s62 2023-01-22T17:16:15Z Accurate estimation of historical abundance provides an essential baseline for judging the recovery of the great whales. This is particularly challenging for whales hunted prior to twentieth century modern whaling, as population-level catch records are often incomplete. Assessments of whale recovery using pre-modern exploitation indices are therefore rare, despite the intensive, global nature of nineteenth century whaling. Right whales (Eubalaena spp.) were particularly exploited: slow swimmers with strong fidelity to sheltered calving bays, the species made predictable and easy targets. Here, we present the first integrated population-level assessment of the whaling impact and pre-exploitation abundance of a right whale, the New Zealand southern right whale (E. australis). In this assessment, we use a Bayesian population dynamics model integrating multiple data sources: nineteenth century catches, genetic constraints on bottleneck size and individual sightings histories informing abundance and trend. Different catch allocation scenarios are explored to account for uncertainty in the population's offshore distribution. From a pre-exploitation abundance of 28 800–47 100 whales, nineteenth century hunting reduced the population to approximately 30–40 mature females between 1914 and 1926. Today, it stands at less than 12% of pre-exploitation abundance. Despite the challenges of reconstructing historical catches and population boundaries, conservation efforts of historically exploited species benefit from targets for ecological restoration. Southern right whale population modelThis is the R script used to conduct the population assessments. Two example calls are also given.SRW_SIR_pop_model_REV.rSouthern right whale catch series for New Zealand and Southeast PacificCatch series data, as described in Carroll et al. 2014 (PLoS One 9:e93789), for input into population assessment model.Catch_inputs.csv Dataset Antarc* Antarctic Auckland Islands Southern Right Whale Unknown Antarctic Pacific New Zealand Carroll ENVELOPE(-78.750,-78.750,-73.000,-73.000) |
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Open Polar |
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fttriple |
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topic |
Life sciences medicine and health care whaling historical abundance bottleneck Eubalaena recovery 200 years southern right whale population dynamics Southwest Pacific New Zealand Sub-Antarctic Auckland Islands envir geo |
spellingShingle |
Life sciences medicine and health care whaling historical abundance bottleneck Eubalaena recovery 200 years southern right whale population dynamics Southwest Pacific New Zealand Sub-Antarctic Auckland Islands envir geo Jackson, Jennifer A. Carroll, Emma L. Smith, Tim D. Zerbini, Alex N. Patenaude, Nathalie J. Baker, C. Scott Data from: An integrated approach to historical population assessment of the great whales: case of the New Zealand southern right whale |
topic_facet |
Life sciences medicine and health care whaling historical abundance bottleneck Eubalaena recovery 200 years southern right whale population dynamics Southwest Pacific New Zealand Sub-Antarctic Auckland Islands envir geo |
description |
Accurate estimation of historical abundance provides an essential baseline for judging the recovery of the great whales. This is particularly challenging for whales hunted prior to twentieth century modern whaling, as population-level catch records are often incomplete. Assessments of whale recovery using pre-modern exploitation indices are therefore rare, despite the intensive, global nature of nineteenth century whaling. Right whales (Eubalaena spp.) were particularly exploited: slow swimmers with strong fidelity to sheltered calving bays, the species made predictable and easy targets. Here, we present the first integrated population-level assessment of the whaling impact and pre-exploitation abundance of a right whale, the New Zealand southern right whale (E. australis). In this assessment, we use a Bayesian population dynamics model integrating multiple data sources: nineteenth century catches, genetic constraints on bottleneck size and individual sightings histories informing abundance and trend. Different catch allocation scenarios are explored to account for uncertainty in the population's offshore distribution. From a pre-exploitation abundance of 28 800–47 100 whales, nineteenth century hunting reduced the population to approximately 30–40 mature females between 1914 and 1926. Today, it stands at less than 12% of pre-exploitation abundance. Despite the challenges of reconstructing historical catches and population boundaries, conservation efforts of historically exploited species benefit from targets for ecological restoration. Southern right whale population modelThis is the R script used to conduct the population assessments. Two example calls are also given.SRW_SIR_pop_model_REV.rSouthern right whale catch series for New Zealand and Southeast PacificCatch series data, as described in Carroll et al. 2014 (PLoS One 9:e93789), for input into population assessment model.Catch_inputs.csv |
format |
Dataset |
author |
Jackson, Jennifer A. Carroll, Emma L. Smith, Tim D. Zerbini, Alex N. Patenaude, Nathalie J. Baker, C. Scott |
author_facet |
Jackson, Jennifer A. Carroll, Emma L. Smith, Tim D. Zerbini, Alex N. Patenaude, Nathalie J. Baker, C. Scott |
author_sort |
Jackson, Jennifer A. |
title |
Data from: An integrated approach to historical population assessment of the great whales: case of the New Zealand southern right whale |
title_short |
Data from: An integrated approach to historical population assessment of the great whales: case of the New Zealand southern right whale |
title_full |
Data from: An integrated approach to historical population assessment of the great whales: case of the New Zealand southern right whale |
title_fullStr |
Data from: An integrated approach to historical population assessment of the great whales: case of the New Zealand southern right whale |
title_full_unstemmed |
Data from: An integrated approach to historical population assessment of the great whales: case of the New Zealand southern right whale |
title_sort |
data from: an integrated approach to historical population assessment of the great whales: case of the new zealand southern right whale |
publishDate |
2020 |
url |
https://doi.org/10.5061/dryad.c3s62 |
long_lat |
ENVELOPE(-78.750,-78.750,-73.000,-73.000) |
geographic |
Antarctic Pacific New Zealand Carroll |
geographic_facet |
Antarctic Pacific New Zealand Carroll |
genre |
Antarc* Antarctic Auckland Islands Southern Right Whale |
genre_facet |
Antarc* Antarctic Auckland Islands Southern Right Whale |
op_source |
oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:92737 10.5061/dryad.c3s62 oai:easy.dans.knaw.nl:easy-dataset:92737 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
http://dx.doi.org/10.5061/dryad.c3s62 https://dx.doi.org/10.5061/dryad.c3s62 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.c3s62 |
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1766274892616957952 |