Foraging Behavior of Subantarctic Fur Seals Supports Efficiency of a Marine Reserve's Design.
Foraging behaviour of marine top predators is increasingly being used to identify areas of ecological importance. This is largely enabled by the ability of many such species to forage extensively in search of prey that is often concentrated in oceanographically productive areas. To identify importan...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2016-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC4862747?pdf=render |
| _version_ | 1818927491453026304 |
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| author | Stephen P Kirkman Dawit G Yemane Tarron Lamont Michael A Meÿer Pierre A Pistorius |
| author_facet | Stephen P Kirkman Dawit G Yemane Tarron Lamont Michael A Meÿer Pierre A Pistorius |
| author_sort | Stephen P Kirkman |
| collection | DOAJ |
| description | Foraging behaviour of marine top predators is increasingly being used to identify areas of ecological importance. This is largely enabled by the ability of many such species to forage extensively in search of prey that is often concentrated in oceanographically productive areas. To identify important habitat in the Southern Indian Ocean within and around South Africa's Prince Edward Islands' Marine Protected Area (MPA), satellite transmitters were deployed on 12 lactating Subantarctic fur seals Arctocephalus tropicalis at Prince Edward Island (PEI) itself. Switching state space models were employed to correct ARGOS tracks and estimate behavioural states for locations along predicted tracks, namely travelling or area restricted search (ARS). A random forest model showed that distance from the study colony, longitude and distance from the Subantarctic Front were the most important predictors of suitable foraging habitat (inferred from ARS). Model-predicted suitable habitat occurred within the MPA in relatively close access to the colony during summer and autumn, but shifted northwards concurrently with frontal movements in winter and spring. The association of ARS with the MPA during summer-autumn was highly significant, highlighting the effectiveness of the recently declared reserve's design for capturing suitable foraging habitat for this and probably other marine top predator species. |
| first_indexed | 2024-12-20T03:13:51Z |
| format | Article |
| id | doaj.art-d75c702907224ebc8c621793db678666 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-20T03:13:51Z |
| publishDate | 2016-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-d75c702907224ebc8c621793db6786662022-12-21T19:55:24ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01115e015237010.1371/journal.pone.0152370Foraging Behavior of Subantarctic Fur Seals Supports Efficiency of a Marine Reserve's Design.Stephen P KirkmanDawit G YemaneTarron LamontMichael A MeÿerPierre A PistoriusForaging behaviour of marine top predators is increasingly being used to identify areas of ecological importance. This is largely enabled by the ability of many such species to forage extensively in search of prey that is often concentrated in oceanographically productive areas. To identify important habitat in the Southern Indian Ocean within and around South Africa's Prince Edward Islands' Marine Protected Area (MPA), satellite transmitters were deployed on 12 lactating Subantarctic fur seals Arctocephalus tropicalis at Prince Edward Island (PEI) itself. Switching state space models were employed to correct ARGOS tracks and estimate behavioural states for locations along predicted tracks, namely travelling or area restricted search (ARS). A random forest model showed that distance from the study colony, longitude and distance from the Subantarctic Front were the most important predictors of suitable foraging habitat (inferred from ARS). Model-predicted suitable habitat occurred within the MPA in relatively close access to the colony during summer and autumn, but shifted northwards concurrently with frontal movements in winter and spring. The association of ARS with the MPA during summer-autumn was highly significant, highlighting the effectiveness of the recently declared reserve's design for capturing suitable foraging habitat for this and probably other marine top predator species.http://europepmc.org/articles/PMC4862747?pdf=render |
| spellingShingle | Stephen P Kirkman Dawit G Yemane Tarron Lamont Michael A Meÿer Pierre A Pistorius Foraging Behavior of Subantarctic Fur Seals Supports Efficiency of a Marine Reserve's Design. PLoS ONE |
| title | Foraging Behavior of Subantarctic Fur Seals Supports Efficiency of a Marine Reserve's Design. |
| title_full | Foraging Behavior of Subantarctic Fur Seals Supports Efficiency of a Marine Reserve's Design. |
| title_fullStr | Foraging Behavior of Subantarctic Fur Seals Supports Efficiency of a Marine Reserve's Design. |
| title_full_unstemmed | Foraging Behavior of Subantarctic Fur Seals Supports Efficiency of a Marine Reserve's Design. |
| title_short | Foraging Behavior of Subantarctic Fur Seals Supports Efficiency of a Marine Reserve's Design. |
| title_sort | foraging behavior of subantarctic fur seals supports efficiency of a marine reserve s design |
| url | http://europepmc.org/articles/PMC4862747?pdf=render |
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