Appendix 1-Demography of an ice-obligate mysticete in a region of rapid environmental change.pdf
Antarctic minke whales ( Balaenoptera bonaerensis , AMW) are an abundant, ice-dependent species susceptible to rapid climatic changes occurring in parts of the Antarctic. Here, we used remote biopsy samples and estimates of length derived from unoccupied aircraft system (UAS) to characterize for the...
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ftroysocietyfig:oai:figshare.com:article/21476794 2023-05-15T13:58:26+02:00 Appendix 1-Demography of an ice-obligate mysticete in a region of rapid environmental change.pdf L. Pallin K. C. Bierlich J. Durban H. Fearnbach O. Savenko C. S. Baker E. Bell M. C. Double W. de la Mare J. Goldbogen D. Johnston N. Kellar R. Nichols D. Nowacek A. J. Read D. Steel A. Friedlaender 2022-11-02T16:31:00Z https://doi.org/10.6084/m9.figshare.21476794.v3 https://figshare.com/articles/journal_contribution/Antarctic_minke_deomographics_Appendix_revision-clean-12Oct2022_docx_from_Demography_of_an_ice-obligate_mysticete_in_a_region_of_rapid_environmental_change/21476794 unknown doi:10.6084/m9.figshare.21476794.v3 https://figshare.com/articles/journal_contribution/Antarctic_minke_deomographics_Appendix_revision-clean-12Oct2022_docx_from_Demography_of_an_ice-obligate_mysticete_in_a_region_of_rapid_environmental_change/21476794 CC BY 4.0 CC-BY Genetics Molecular Biology Ecology antarctic minke whale progesterone demography pregnancy climate change photogrammetry Text Journal contribution 2022 ftroysocietyfig https://doi.org/10.6084/m9.figshare.21476794.v3 2022-11-24T00:04:58Z Antarctic minke whales ( Balaenoptera bonaerensis , AMW) are an abundant, ice-dependent species susceptible to rapid climatic changes occurring in parts of the Antarctic. Here, we used remote biopsy samples and estimates of length derived from unoccupied aircraft system (UAS) to characterize for the first time the sex ratio, maturity, and pregnancy rates of AMWs around the Western Antarctic Peninsula (WAP). DNA profiling of 82 biopsy samples (2013–2020) identified 29 individual males and 40 individual females. Blubber progesterone levels indicated 59% of all sampled females were pregnant, irrespective of maturity. When corrected for sexual maturity, the median pregnancy rate was 92.3%, indicating that most mature females become pregnant each year. We measured 68 individuals by UAS (mean = 8.04 m) and estimated that 66.5% of females were mature. This study provides the first data on the demography of AMWs along the WAP and represents the first use of non-lethal approaches to studying this species. Furthermore, these results provide baselines against which future changes in population status can be assessed in this rapidly changing marine ecosystem. Other Non-Article Part of Journal/Newspaper Antarc* Antarctic Antarctic Minke whale Antarctic Peninsula Balaenoptera bonaerensis minke whale The Royal Society: Figshare Antarctic The Antarctic Antarctic Peninsula |
institution |
Open Polar |
collection |
The Royal Society: Figshare |
op_collection_id |
ftroysocietyfig |
language |
unknown |
topic |
Genetics Molecular Biology Ecology antarctic minke whale progesterone demography pregnancy climate change photogrammetry |
spellingShingle |
Genetics Molecular Biology Ecology antarctic minke whale progesterone demography pregnancy climate change photogrammetry L. Pallin K. C. Bierlich J. Durban H. Fearnbach O. Savenko C. S. Baker E. Bell M. C. Double W. de la Mare J. Goldbogen D. Johnston N. Kellar R. Nichols D. Nowacek A. J. Read D. Steel A. Friedlaender Appendix 1-Demography of an ice-obligate mysticete in a region of rapid environmental change.pdf |
topic_facet |
Genetics Molecular Biology Ecology antarctic minke whale progesterone demography pregnancy climate change photogrammetry |
description |
Antarctic minke whales ( Balaenoptera bonaerensis , AMW) are an abundant, ice-dependent species susceptible to rapid climatic changes occurring in parts of the Antarctic. Here, we used remote biopsy samples and estimates of length derived from unoccupied aircraft system (UAS) to characterize for the first time the sex ratio, maturity, and pregnancy rates of AMWs around the Western Antarctic Peninsula (WAP). DNA profiling of 82 biopsy samples (2013–2020) identified 29 individual males and 40 individual females. Blubber progesterone levels indicated 59% of all sampled females were pregnant, irrespective of maturity. When corrected for sexual maturity, the median pregnancy rate was 92.3%, indicating that most mature females become pregnant each year. We measured 68 individuals by UAS (mean = 8.04 m) and estimated that 66.5% of females were mature. This study provides the first data on the demography of AMWs along the WAP and represents the first use of non-lethal approaches to studying this species. Furthermore, these results provide baselines against which future changes in population status can be assessed in this rapidly changing marine ecosystem. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
L. Pallin K. C. Bierlich J. Durban H. Fearnbach O. Savenko C. S. Baker E. Bell M. C. Double W. de la Mare J. Goldbogen D. Johnston N. Kellar R. Nichols D. Nowacek A. J. Read D. Steel A. Friedlaender |
author_facet |
L. Pallin K. C. Bierlich J. Durban H. Fearnbach O. Savenko C. S. Baker E. Bell M. C. Double W. de la Mare J. Goldbogen D. Johnston N. Kellar R. Nichols D. Nowacek A. J. Read D. Steel A. Friedlaender |
author_sort |
L. Pallin |
title |
Appendix 1-Demography of an ice-obligate mysticete in a region of rapid environmental change.pdf |
title_short |
Appendix 1-Demography of an ice-obligate mysticete in a region of rapid environmental change.pdf |
title_full |
Appendix 1-Demography of an ice-obligate mysticete in a region of rapid environmental change.pdf |
title_fullStr |
Appendix 1-Demography of an ice-obligate mysticete in a region of rapid environmental change.pdf |
title_full_unstemmed |
Appendix 1-Demography of an ice-obligate mysticete in a region of rapid environmental change.pdf |
title_sort |
appendix 1-demography of an ice-obligate mysticete in a region of rapid environmental change.pdf |
publishDate |
2022 |
url |
https://doi.org/10.6084/m9.figshare.21476794.v3 https://figshare.com/articles/journal_contribution/Antarctic_minke_deomographics_Appendix_revision-clean-12Oct2022_docx_from_Demography_of_an_ice-obligate_mysticete_in_a_region_of_rapid_environmental_change/21476794 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Minke whale Antarctic Peninsula Balaenoptera bonaerensis minke whale |
genre_facet |
Antarc* Antarctic Antarctic Minke whale Antarctic Peninsula Balaenoptera bonaerensis minke whale |
op_relation |
doi:10.6084/m9.figshare.21476794.v3 https://figshare.com/articles/journal_contribution/Antarctic_minke_deomographics_Appendix_revision-clean-12Oct2022_docx_from_Demography_of_an_ice-obligate_mysticete_in_a_region_of_rapid_environmental_change/21476794 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.21476794.v3 |
_version_ |
1766266754053439488 |