Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/3204 |
Resumo: | We report on a wintering area off the Pacific coast of Central America for humpback whales (Megaptera novaeangliae) migrating from feeding areas off Antarctica. We document seven individuals, including a mother/calf pair, that made this migration (approx. 8300 km), the longest movement undertaken by any mammal. Whales were observed as far north as 118N off Costa Rica, in an area also used by a boreal population during the opposite winter season, resulting in unique spatial overlap between Northern and Southern Hemisphere populations. The occurrence of such a northerly wintering area is coincident with the development of an equatorial tongue of cold water in the eastern South Pacific, a pattern that is repeated in the eastern South Atlantic. A survey of location and water temperature at the wintering areas worldwide indicates that they are found in warm waters (21.1–28.38C), irrespective of latitude. We contend that while availability of suitable reproductive habitat in the wintering areas is important at the fine scale, water temperature influences whale distribution at the basin scale. Calf development in warm water may lead to larger adult size and increased reproductive success, a strategy that supports the energy conservation hypothesis as a reason for migration. |
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Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migrationHumpback whaleMegaptera novaeangliaeMigrationCentral AmericaAntarcticaSea-surface temperatureWe report on a wintering area off the Pacific coast of Central America for humpback whales (Megaptera novaeangliae) migrating from feeding areas off Antarctica. We document seven individuals, including a mother/calf pair, that made this migration (approx. 8300 km), the longest movement undertaken by any mammal. Whales were observed as far north as 118N off Costa Rica, in an area also used by a boreal population during the opposite winter season, resulting in unique spatial overlap between Northern and Southern Hemisphere populations. The occurrence of such a northerly wintering area is coincident with the development of an equatorial tongue of cold water in the eastern South Pacific, a pattern that is repeated in the eastern South Atlantic. A survey of location and water temperature at the wintering areas worldwide indicates that they are found in warm waters (21.1–28.38C), irrespective of latitude. We contend that while availability of suitable reproductive habitat in the wintering areas is important at the fine scale, water temperature influences whale distribution at the basin scale. Calf development in warm water may lead to larger adult size and increased reproductive success, a strategy that supports the energy conservation hypothesis as a reason for migration.2013-04-12T04:08:18Z2013-04-12T04:08:18Z2007info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfRASMUSSEN, Kristin et al. Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration. Biology Letters , v. 3, p. 302-305, 2007. Disponível em: <http://rsbl.royalsocietypublishing.org/content/3/3/302.full.pdf+html>. Acesso em: 19 fev. 2013.http://repositorio.furg.br/handle/1/320410.1098/rsbl.2007.0067engRasmussen, KristinPalacios, DanielCalambokidis, JohnSaborío, Marco TulioDalla Rosa, LucianoSecchi, Eduardo ResendeSteiger, GretchenAllen, JudithStone, Gregoryinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2014-09-22T12:57:03Zoai:repositorio.furg.br:1/3204Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2014-09-22T12:57:03Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration |
title |
Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration |
spellingShingle |
Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration Rasmussen, Kristin Humpback whale Megaptera novaeangliae Migration Central America Antarctica Sea-surface temperature |
title_short |
Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration |
title_full |
Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration |
title_fullStr |
Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration |
title_full_unstemmed |
Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration |
title_sort |
Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration |
author |
Rasmussen, Kristin |
author_facet |
Rasmussen, Kristin Palacios, Daniel Calambokidis, John Saborío, Marco Tulio Dalla Rosa, Luciano Secchi, Eduardo Resende Steiger, Gretchen Allen, Judith Stone, Gregory |
author_role |
author |
author2 |
Palacios, Daniel Calambokidis, John Saborío, Marco Tulio Dalla Rosa, Luciano Secchi, Eduardo Resende Steiger, Gretchen Allen, Judith Stone, Gregory |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Rasmussen, Kristin Palacios, Daniel Calambokidis, John Saborío, Marco Tulio Dalla Rosa, Luciano Secchi, Eduardo Resende Steiger, Gretchen Allen, Judith Stone, Gregory |
dc.subject.por.fl_str_mv |
Humpback whale Megaptera novaeangliae Migration Central America Antarctica Sea-surface temperature |
topic |
Humpback whale Megaptera novaeangliae Migration Central America Antarctica Sea-surface temperature |
description |
We report on a wintering area off the Pacific coast of Central America for humpback whales (Megaptera novaeangliae) migrating from feeding areas off Antarctica. We document seven individuals, including a mother/calf pair, that made this migration (approx. 8300 km), the longest movement undertaken by any mammal. Whales were observed as far north as 118N off Costa Rica, in an area also used by a boreal population during the opposite winter season, resulting in unique spatial overlap between Northern and Southern Hemisphere populations. The occurrence of such a northerly wintering area is coincident with the development of an equatorial tongue of cold water in the eastern South Pacific, a pattern that is repeated in the eastern South Atlantic. A survey of location and water temperature at the wintering areas worldwide indicates that they are found in warm waters (21.1–28.38C), irrespective of latitude. We contend that while availability of suitable reproductive habitat in the wintering areas is important at the fine scale, water temperature influences whale distribution at the basin scale. Calf development in warm water may lead to larger adult size and increased reproductive success, a strategy that supports the energy conservation hypothesis as a reason for migration. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007 2013-04-12T04:08:18Z 2013-04-12T04:08:18Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
RASMUSSEN, Kristin et al. Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration. Biology Letters , v. 3, p. 302-305, 2007. Disponível em: <http://rsbl.royalsocietypublishing.org/content/3/3/302.full.pdf+html>. Acesso em: 19 fev. 2013. http://repositorio.furg.br/handle/1/3204 10.1098/rsbl.2007.0067 |
identifier_str_mv |
RASMUSSEN, Kristin et al. Southern Hemisphere humpback whales wintering off Central America: insights from water temperature into the longest mammalian migration. Biology Letters , v. 3, p. 302-305, 2007. Disponível em: <http://rsbl.royalsocietypublishing.org/content/3/3/302.full.pdf+html>. Acesso em: 19 fev. 2013. 10.1098/rsbl.2007.0067 |
url |
http://repositorio.furg.br/handle/1/3204 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
_version_ |
1807384409064603648 |