Density-dependent changes in the distribution of Southern Right Whales (Eubalaena australis) in the breeding ground Peninsula Valdés
Background The Southern Right Whale (Eubalaena australis) population of the South–western Atlantic Ocean is recovering. In the breeding ground of Peninsula Valdés, as a consequence of the population growth, expansion to new areas by some types of groups and a change in the habitat use patterns at th...
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ftdoajarticles:oai:doaj.org/article:e49d8050287f4afda45539c0b93883e2 2024-01-07T09:46:50+01:00 Density-dependent changes in the distribution of Southern Right Whales (Eubalaena australis) in the breeding ground Peninsula Valdés Nicolas Sueyro Enrique Alberto Crespo Magdalena Arias Mariano Alberto Coscarella 2018-12-01T00:00:00Z https://doi.org/10.7717/peerj.5957 https://doaj.org/article/e49d8050287f4afda45539c0b93883e2 EN eng PeerJ Inc. https://peerj.com/articles/5957.pdf https://peerj.com/articles/5957/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.5957 2167-8359 https://doaj.org/article/e49d8050287f4afda45539c0b93883e2 PeerJ, Vol 6, p e5957 (2018) Southern Right Whales Density-dependent Distribution change Peninsula Valdés Eubalaena australis Medicine R Biology (General) QH301-705.5 article 2018 ftdoajarticles https://doi.org/10.7717/peerj.5957 2023-12-10T01:50:00Z Background The Southern Right Whale (Eubalaena australis) population of the South–western Atlantic Ocean is recovering. In the breeding ground of Peninsula Valdés, as a consequence of the population growth, expansion to new areas by some types of groups and a change in the habitat use patterns at the coastal area were recorded. Methods We analysed information gathered from aerial surveys conducted along the coast of Peninsula Valdés in 15 years of effective sampling in a 19-year span. These surveys were divided into four periods (1999–2000; 2004–2007; 2008–2012 and 2013–2016) and estimated the density of whales in a 620 km of coast divided into segments of five km. Results The density of the whales increased to near three whales per km2 (averaged over each period) in the high-density areas. When this mean number was reached, the significant changes in density in the adjacent areas were detected in the following period. These changes were a decrease in density in the high-density areas and an increase of density in the low-density areas. Discussion We propose that a threshold in density elicits a response in habitat use, with the Mother-calf pairs remaining in the area, while the other groups are displaced to new areas. Article in Journal/Newspaper Southern Right Whale Directory of Open Access Journals: DOAJ Articles PeerJ 6 e5957 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Southern Right Whales Density-dependent Distribution change Peninsula Valdés Eubalaena australis Medicine R Biology (General) QH301-705.5 |
spellingShingle |
Southern Right Whales Density-dependent Distribution change Peninsula Valdés Eubalaena australis Medicine R Biology (General) QH301-705.5 Nicolas Sueyro Enrique Alberto Crespo Magdalena Arias Mariano Alberto Coscarella Density-dependent changes in the distribution of Southern Right Whales (Eubalaena australis) in the breeding ground Peninsula Valdés |
topic_facet |
Southern Right Whales Density-dependent Distribution change Peninsula Valdés Eubalaena australis Medicine R Biology (General) QH301-705.5 |
description |
Background The Southern Right Whale (Eubalaena australis) population of the South–western Atlantic Ocean is recovering. In the breeding ground of Peninsula Valdés, as a consequence of the population growth, expansion to new areas by some types of groups and a change in the habitat use patterns at the coastal area were recorded. Methods We analysed information gathered from aerial surveys conducted along the coast of Peninsula Valdés in 15 years of effective sampling in a 19-year span. These surveys were divided into four periods (1999–2000; 2004–2007; 2008–2012 and 2013–2016) and estimated the density of whales in a 620 km of coast divided into segments of five km. Results The density of the whales increased to near three whales per km2 (averaged over each period) in the high-density areas. When this mean number was reached, the significant changes in density in the adjacent areas were detected in the following period. These changes were a decrease in density in the high-density areas and an increase of density in the low-density areas. Discussion We propose that a threshold in density elicits a response in habitat use, with the Mother-calf pairs remaining in the area, while the other groups are displaced to new areas. |
format |
Article in Journal/Newspaper |
author |
Nicolas Sueyro Enrique Alberto Crespo Magdalena Arias Mariano Alberto Coscarella |
author_facet |
Nicolas Sueyro Enrique Alberto Crespo Magdalena Arias Mariano Alberto Coscarella |
author_sort |
Nicolas Sueyro |
title |
Density-dependent changes in the distribution of Southern Right Whales (Eubalaena australis) in the breeding ground Peninsula Valdés |
title_short |
Density-dependent changes in the distribution of Southern Right Whales (Eubalaena australis) in the breeding ground Peninsula Valdés |
title_full |
Density-dependent changes in the distribution of Southern Right Whales (Eubalaena australis) in the breeding ground Peninsula Valdés |
title_fullStr |
Density-dependent changes in the distribution of Southern Right Whales (Eubalaena australis) in the breeding ground Peninsula Valdés |
title_full_unstemmed |
Density-dependent changes in the distribution of Southern Right Whales (Eubalaena australis) in the breeding ground Peninsula Valdés |
title_sort |
density-dependent changes in the distribution of southern right whales (eubalaena australis) in the breeding ground peninsula valdés |
publisher |
PeerJ Inc. |
publishDate |
2018 |
url |
https://doi.org/10.7717/peerj.5957 https://doaj.org/article/e49d8050287f4afda45539c0b93883e2 |
genre |
Southern Right Whale |
genre_facet |
Southern Right Whale |
op_source |
PeerJ, Vol 6, p e5957 (2018) |
op_relation |
https://peerj.com/articles/5957.pdf https://peerj.com/articles/5957/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.5957 2167-8359 https://doaj.org/article/e49d8050287f4afda45539c0b93883e2 |
op_doi |
https://doi.org/10.7717/peerj.5957 |
container_title |
PeerJ |
container_volume |
6 |
container_start_page |
e5957 |
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1787428749576241152 |