Defining management units for cetaceans by combining genetics, morphology, acoustics and satellite tracking
Managing animal units is essential in biological conservation and requires spatial and temporal identification of such units. Since even neighbouring populations often have different conservation status and face different levels of anthropogenic pressure, detailed knowledge of population structure,...
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Online Access: | http://nbn-resolving.de/urn:nbn:de:bsz:352-2-11s80suk92oak1 https://doi.org/10.1016/j.gecco.2015.04.002 |
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ftubkonstanz:oai:kops.uni-konstanz.de:123456789/50987 2024-02-11T10:04:33+01:00 Defining management units for cetaceans by combining genetics, morphology, acoustics and satellite tracking Sveegaard, Signe Galatius, Anders Dietz, Rune Kyhn, Line Koblitz, Jens C. Amundin, Mats Nabe-Nielsen, Jacob Sinding, Mikkel-Holger S. Andersen, Liselotte W. Teilmann, Jonas 2015 application/pdf http://nbn-resolving.de/urn:nbn:de:bsz:352-2-11s80suk92oak1 https://doi.org/10.1016/j.gecco.2015.04.002 eng eng http://nbn-resolving.de/urn:nbn:de:bsz:352-2-11s80suk92oak1 http://dx.doi.org/10.1016/j.gecco.2015.04.002 1733605045 http://creativecommons.org/licenses/by-nc-nd/4.0/ Global Ecology and Conservation. Elsevier. 2015, 3, pp. 839-850. ISSN 2351-9894. Available under: doi:10.1016/j.gecco.2015.04.002 Abundance estimate Harbour porpoise Phocoena phocoena Population separation Population structure Passive acoustic monitoring ddc:570 doc-type:article doc-type:Text 2015 ftubkonstanz https://doi.org/10.1016/j.gecco.2015.04.002 2024-01-21T23:53:12Z Managing animal units is essential in biological conservation and requires spatial and temporal identification of such units. Since even neighbouring populations often have different conservation status and face different levels of anthropogenic pressure, detailed knowledge of population structure, seasonal range and overlap with animals from neighbouring populations is required to manage each unit separately. Previous studies on genetic structure and morphologic separation suggests three distinct populations of harbour porpoises with limited geographic overlap in the North Sea (NS), the Belt Sea (BS) and the Baltic Proper (BP) region. In this study, we aim to identify a management unit for the BS population of harbour porpoises. We use Argos satellite data and genetics from biopsies of tagged harbour porpoises as well as acoustic data from 40 passive acoustic data loggers to determine management areas with the least overlap between populations and thus the least error when abundance and population status is estimated. Discriminant analysis of the satellite tracking data from the BS and NS populations showed that the best fit of the management unit border during the summer months was an east–west line from Denmark to Sweden at latitude 56.95°N. For the border between BS and BP, satellite tracking data indicate a sharp decline in population density at 13.5°E, with 90% of the locations being west of this line. This was supported by the acoustic data with the average daily detection rate being 27.5 times higher west of 13.5°E as compared to east of 13.5°E. By using this novel multidisciplinary approach, we defined a management unit for the BS harbour porpoise population. We recommend that these boundaries are used for future monitoring efforts of this population under the EU directives. The boundaries may also be used for conservation efforts during the summer months, while seasonal movements of harbour porpoises should be considered during winter. published published Article in Journal/Newspaper Harbour porpoise Phocoena phocoena KOPS - The Institutional Repository of the University of Konstanz Global Ecology and Conservation 3 839 850 |
institution |
Open Polar |
collection |
KOPS - The Institutional Repository of the University of Konstanz |
op_collection_id |
ftubkonstanz |
language |
English |
topic |
Abundance estimate Harbour porpoise Phocoena phocoena Population separation Population structure Passive acoustic monitoring ddc:570 |
spellingShingle |
Abundance estimate Harbour porpoise Phocoena phocoena Population separation Population structure Passive acoustic monitoring ddc:570 Sveegaard, Signe Galatius, Anders Dietz, Rune Kyhn, Line Koblitz, Jens C. Amundin, Mats Nabe-Nielsen, Jacob Sinding, Mikkel-Holger S. Andersen, Liselotte W. Teilmann, Jonas Defining management units for cetaceans by combining genetics, morphology, acoustics and satellite tracking |
topic_facet |
Abundance estimate Harbour porpoise Phocoena phocoena Population separation Population structure Passive acoustic monitoring ddc:570 |
description |
Managing animal units is essential in biological conservation and requires spatial and temporal identification of such units. Since even neighbouring populations often have different conservation status and face different levels of anthropogenic pressure, detailed knowledge of population structure, seasonal range and overlap with animals from neighbouring populations is required to manage each unit separately. Previous studies on genetic structure and morphologic separation suggests three distinct populations of harbour porpoises with limited geographic overlap in the North Sea (NS), the Belt Sea (BS) and the Baltic Proper (BP) region. In this study, we aim to identify a management unit for the BS population of harbour porpoises. We use Argos satellite data and genetics from biopsies of tagged harbour porpoises as well as acoustic data from 40 passive acoustic data loggers to determine management areas with the least overlap between populations and thus the least error when abundance and population status is estimated. Discriminant analysis of the satellite tracking data from the BS and NS populations showed that the best fit of the management unit border during the summer months was an east–west line from Denmark to Sweden at latitude 56.95°N. For the border between BS and BP, satellite tracking data indicate a sharp decline in population density at 13.5°E, with 90% of the locations being west of this line. This was supported by the acoustic data with the average daily detection rate being 27.5 times higher west of 13.5°E as compared to east of 13.5°E. By using this novel multidisciplinary approach, we defined a management unit for the BS harbour porpoise population. We recommend that these boundaries are used for future monitoring efforts of this population under the EU directives. The boundaries may also be used for conservation efforts during the summer months, while seasonal movements of harbour porpoises should be considered during winter. published published |
format |
Article in Journal/Newspaper |
author |
Sveegaard, Signe Galatius, Anders Dietz, Rune Kyhn, Line Koblitz, Jens C. Amundin, Mats Nabe-Nielsen, Jacob Sinding, Mikkel-Holger S. Andersen, Liselotte W. Teilmann, Jonas |
author_facet |
Sveegaard, Signe Galatius, Anders Dietz, Rune Kyhn, Line Koblitz, Jens C. Amundin, Mats Nabe-Nielsen, Jacob Sinding, Mikkel-Holger S. Andersen, Liselotte W. Teilmann, Jonas |
author_sort |
Sveegaard, Signe |
title |
Defining management units for cetaceans by combining genetics, morphology, acoustics and satellite tracking |
title_short |
Defining management units for cetaceans by combining genetics, morphology, acoustics and satellite tracking |
title_full |
Defining management units for cetaceans by combining genetics, morphology, acoustics and satellite tracking |
title_fullStr |
Defining management units for cetaceans by combining genetics, morphology, acoustics and satellite tracking |
title_full_unstemmed |
Defining management units for cetaceans by combining genetics, morphology, acoustics and satellite tracking |
title_sort |
defining management units for cetaceans by combining genetics, morphology, acoustics and satellite tracking |
publishDate |
2015 |
url |
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-11s80suk92oak1 https://doi.org/10.1016/j.gecco.2015.04.002 |
genre |
Harbour porpoise Phocoena phocoena |
genre_facet |
Harbour porpoise Phocoena phocoena |
op_source |
Global Ecology and Conservation. Elsevier. 2015, 3, pp. 839-850. ISSN 2351-9894. Available under: doi:10.1016/j.gecco.2015.04.002 |
op_relation |
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-11s80suk92oak1 http://dx.doi.org/10.1016/j.gecco.2015.04.002 1733605045 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1016/j.gecco.2015.04.002 |
container_title |
Global Ecology and Conservation |
container_volume |
3 |
container_start_page |
839 |
op_container_end_page |
850 |
_version_ |
1790601190725124096 |