Minimum population size estimates demonstrate an increase in southern elephant seals (Mirounga leonina) on Livingston Island, maritime Antarctica
Southern elephant seals ( Mirounga leonina ) are apex predators of marine Antarctic food webs, and variations in their populations have been linked to environmental changes. Consequently, measuring and reporting the status of elephant seal populations provide insights into the environmental status o...
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| Veröffentlicht in: | Polar biology 2013-04, Vol.36 (4), p.607-610 |
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| creator | Gil-Delgado, J. A. Villaescusa, J. A. Diazmacip, M. E. Velazquez, D. Rico, E. Toro, M. Quesada, A. Camacho, A. |
| description | Southern elephant seals (
Mirounga leonina
) are apex predators of marine Antarctic food webs, and variations in their populations have been linked to environmental changes. Consequently, measuring and reporting the status of elephant seal populations provide insights into the environmental status of Antarctica. Here, we present new information on the size of the elephant seal subpopulation on Byers Peninsula (Livingston Island, South Shetland Islands, maritime Antarctica). Based on a total count of 1,510 pups, we estimated a total subpopulation size of 5,530 individuals by using a conversion factor of 3.5. This represents an increase of 150 % since the subpopulation was first counted 30 years ago. Based on this finding, we hypothesize that the overall South Georgia stock, to which the subpopulation we estimated on Byers Peninsula belongs, could be increasing instead of remaining stable as previously thought. |
| doi_str_mv | 10.1007/s00300-012-1280-6 |
| format | Article |
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Mirounga leonina
) are apex predators of marine Antarctic food webs, and variations in their populations have been linked to environmental changes. Consequently, measuring and reporting the status of elephant seal populations provide insights into the environmental status of Antarctica. Here, we present new information on the size of the elephant seal subpopulation on Byers Peninsula (Livingston Island, South Shetland Islands, maritime Antarctica). Based on a total count of 1,510 pups, we estimated a total subpopulation size of 5,530 individuals by using a conversion factor of 3.5. This represents an increase of 150 % since the subpopulation was first counted 30 years ago. Based on this finding, we hypothesize that the overall South Georgia stock, to which the subpopulation we estimated on Byers Peninsula belongs, could be increasing instead of remaining stable as previously thought.</description><identifier>ISSN: 0722-4060</identifier><identifier>EISSN: 1432-2056</identifier><identifier>DOI: 10.1007/s00300-012-1280-6</identifier><identifier>CODEN: POBIDP</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Animal and plant ecology ; Animal populations ; Animal, plant and microbial ecology ; Aquatic mammals ; Biological and medical sciences ; Biomedical and Life Sciences ; Ecology ; Environmental changes ; Food chains ; Food webs ; Fundamental and applied biological sciences. Psychology ; Life Sciences ; Mammalia ; Marine mammals ; Microbiology ; Oceanography ; Particular ecosystems ; Plant Sciences ; Population number ; Predation ; Predators ; Seals ; Short Note ; Statistics ; Synecology ; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution ; Zoology</subject><ispartof>Polar biology, 2013-04, Vol.36 (4), p.607-610</ispartof><rights>Springer-Verlag Berlin Heidelberg 2012</rights><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2013 Springer</rights><rights>Springer-Verlag Berlin Heidelberg 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c385t-d6c8e9d1f88fb86d4016c28269124a3c07b8aea46bf028f9de64564780034f8d3</citedby><cites>FETCH-LOGICAL-c385t-d6c8e9d1f88fb86d4016c28269124a3c07b8aea46bf028f9de64564780034f8d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00300-012-1280-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00300-012-1280-6$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27575398$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Gil-Delgado, J. A.</creatorcontrib><creatorcontrib>Villaescusa, J. A.</creatorcontrib><creatorcontrib>Diazmacip, M. E.</creatorcontrib><creatorcontrib>Velazquez, D.</creatorcontrib><creatorcontrib>Rico, E.</creatorcontrib><creatorcontrib>Toro, M.</creatorcontrib><creatorcontrib>Quesada, A.</creatorcontrib><creatorcontrib>Camacho, A.</creatorcontrib><title>Minimum population size estimates demonstrate an increase in southern elephant seals (Mirounga leonina) on Livingston Island, maritime Antarctica</title><title>Polar biology</title><addtitle>Polar Biol</addtitle><description>Southern elephant seals (
Mirounga leonina
) are apex predators of marine Antarctic food webs, and variations in their populations have been linked to environmental changes. Consequently, measuring and reporting the status of elephant seal populations provide insights into the environmental status of Antarctica. Here, we present new information on the size of the elephant seal subpopulation on Byers Peninsula (Livingston Island, South Shetland Islands, maritime Antarctica). Based on a total count of 1,510 pups, we estimated a total subpopulation size of 5,530 individuals by using a conversion factor of 3.5. This represents an increase of 150 % since the subpopulation was first counted 30 years ago. Based on this finding, we hypothesize that the overall South Georgia stock, to which the subpopulation we estimated on Byers Peninsula belongs, could be increasing instead of remaining stable as previously thought.</description><subject>Animal and plant ecology</subject><subject>Animal populations</subject><subject>Animal, plant and microbial ecology</subject><subject>Aquatic mammals</subject><subject>Biological and medical sciences</subject><subject>Biomedical and Life Sciences</subject><subject>Ecology</subject><subject>Environmental changes</subject><subject>Food chains</subject><subject>Food webs</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Life Sciences</subject><subject>Mammalia</subject><subject>Marine mammals</subject><subject>Microbiology</subject><subject>Oceanography</subject><subject>Particular ecosystems</subject><subject>Plant Sciences</subject><subject>Population number</subject><subject>Predation</subject><subject>Predators</subject><subject>Seals</subject><subject>Short Note</subject><subject>Statistics</subject><subject>Synecology</subject><subject>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><subject>Zoology</subject><issn>0722-4060</issn><issn>1432-2056</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1UcGOFCEUJEYTx9EP8EZiTDSxV6Bpmj5ONupuMhsveiYM_Zhl0w0t0JvoX_jHvk1vjBfDgQe8qldUEfKaswvOWP-xMNYy1jAuGi40a9QTsuOyFY1gnXpKdqwXopFMsefkRSl3jPFeyWFHft-EGOZ1pkta1snWkCIt4RdQKDXMtkKhI8wplprxQG2kIboMtgAWtKS13kKOFCZYbm2stICdCn13E3Ja49nSCVIM0b6nyHsM9yGeS8Xyukw2jh_obHPAOUAPsdrsanD2JXnmkQNePe578v3zp2-XV83x65fry8Oxca3uajMqp2EYudfan7QaJePKCS3UwIW0rWP9SVuwUp08E9oPIyjZKdlrNEp6PbZ78mbjXXL6seJ3zV1ac8SRhre8G3Tb6Q67Lraus53AhOgTGuFwoSvBpQg-4P2h510n214OCOAbwOVUSgZvloxG5p-GM_MQldmiMhiVeYjKKMS8fZRii7OTzza6UP4CRd_1XYuC9kRsfQWf4hnyP5L_S_4HLZOlTw</recordid><startdate>20130401</startdate><enddate>20130401</enddate><creator>Gil-Delgado, J. 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A.</au><au>Villaescusa, J. A.</au><au>Diazmacip, M. E.</au><au>Velazquez, D.</au><au>Rico, E.</au><au>Toro, M.</au><au>Quesada, A.</au><au>Camacho, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Minimum population size estimates demonstrate an increase in southern elephant seals (Mirounga leonina) on Livingston Island, maritime Antarctica</atitle><jtitle>Polar biology</jtitle><stitle>Polar Biol</stitle><date>2013-04-01</date><risdate>2013</risdate><volume>36</volume><issue>4</issue><spage>607</spage><epage>610</epage><pages>607-610</pages><issn>0722-4060</issn><eissn>1432-2056</eissn><coden>POBIDP</coden><abstract>Southern elephant seals (
Mirounga leonina
) are apex predators of marine Antarctic food webs, and variations in their populations have been linked to environmental changes. Consequently, measuring and reporting the status of elephant seal populations provide insights into the environmental status of Antarctica. Here, we present new information on the size of the elephant seal subpopulation on Byers Peninsula (Livingston Island, South Shetland Islands, maritime Antarctica). Based on a total count of 1,510 pups, we estimated a total subpopulation size of 5,530 individuals by using a conversion factor of 3.5. This represents an increase of 150 % since the subpopulation was first counted 30 years ago. Based on this finding, we hypothesize that the overall South Georgia stock, to which the subpopulation we estimated on Byers Peninsula belongs, could be increasing instead of remaining stable as previously thought.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1007/s00300-012-1280-6</doi><tpages>4</tpages></addata></record> |
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| ispartof | Polar biology, 2013-04, Vol.36 (4), p.607-610 |
| issn | 0722-4060 1432-2056 |
| language | eng |
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| source | SpringerNature Journals |
| subjects | Animal and plant ecology Animal populations Animal, plant and microbial ecology Aquatic mammals Biological and medical sciences Biomedical and Life Sciences Ecology Environmental changes Food chains Food webs Fundamental and applied biological sciences. Psychology Life Sciences Mammalia Marine mammals Microbiology Oceanography Particular ecosystems Plant Sciences Population number Predation Predators Seals Short Note Statistics Synecology Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution Zoology |
| title | Minimum population size estimates demonstrate an increase in southern elephant seals (Mirounga leonina) on Livingston Island, maritime Antarctica |
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