Variation in δ 13 C and δ 15 N values of mothers and their calves across southern right whale nursery grounds:the effects of nutritional stress?
Southern right whales (SRW) are capital breeders that use stored energy reserves to sustain themselves and their calves on nursery areas. With successful calving events declining in some SRW populations, it has been hypothesized that nutritional stress in adult females causes reproductive failure or...
Published in: | Marine Mammal Science |
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Main Authors: | , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2021
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/variation-in-13c-and-15n-values-of-mothers-and-their-calves-across-southern-right-whale-nursery-grounds(c4cf751d-cdbd-4df7-b5cb-7de295be4a80).html https://doi.org/10.1111/mms.12871 https://research-repository.st-andrews.ac.uk/bitstream/10023/25997/1/Carroll_Accepted_MMS_CowCalfPairSIOffset_AAM.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/c4cf751d-cdbd-4df7-b5cb-7de295be4a80 2023-05-15T18:26:16+02:00 Variation in δ 13 C and δ 15 N values of mothers and their calves across southern right whale nursery grounds:the effects of nutritional stress? Carroll, Emma L. Dunshea, Glenn Ott, Paulo H. Valenzuela, Luciano O. Baker, C. Scott Childerhouse, Simon J. Gaggiotti, Oscar E. Flores, Paulo A. C. Groch, Karina Gröcke, Darren R. Hindell, Mark A. Lundquist, David Oliveira, Larissa R. Rowntree, Victoria Sironi, Mariano Newsome, Seth D. 2021-09-13 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/variation-in-13c-and-15n-values-of-mothers-and-their-calves-across-southern-right-whale-nursery-grounds(c4cf751d-cdbd-4df7-b5cb-7de295be4a80).html https://doi.org/10.1111/mms.12871 https://research-repository.st-andrews.ac.uk/bitstream/10023/25997/1/Carroll_Accepted_MMS_CowCalfPairSIOffset_AAM.pdf eng eng info:eu-repo/semantics/openAccess Carroll , E L , Dunshea , G , Ott , P H , Valenzuela , L O , Baker , C S , Childerhouse , S J , Gaggiotti , O E , Flores , P A C , Groch , K , Gröcke , D R , Hindell , M A , Lundquist , D , Oliveira , L R , Rowntree , V , Sironi , M & Newsome , S D 2021 , ' Variation in δ 13 C and δ 15 N values of mothers and their calves across southern right whale nursery grounds : the effects of nutritional stress? ' , Marine Mammal Science , vol. Early View . https://doi.org/10.1111/mms.12871 Capital breeder Eubalaena australis Maternal investment Physiology Southern right whale Stable isotope article 2021 ftunstandrewcris https://doi.org/10.1111/mms.12871 2022-10-13T15:26:47Z Southern right whales (SRW) are capital breeders that use stored energy reserves to sustain themselves and their calves on nursery areas. With successful calving events declining in some SRW populations, it has been hypothesized that nutritional stress in adult females causes reproductive failure or death of calves shortly after birth. Here we compared offsets in carbon and nitrogen isotope values of mothers and their offspring (Δ 13 C calf-cow and Δ 15 N calf-cow ) among three SRW populations. SRW from Aotearoa New Zealand, with high population growth rates and body conditions scores, have negative Δ 13 C calf-cow suggesting calves are utilizing 13 C-depleted lipid carbon in milk to fuel the synthesis of nonessential amino acids used to build new tissues and rapidly grow. In contrast, a significantly positive Δ 13 C calf-cow offset previously reported for SRW from Argentina during a mass die-off event was hypothesized to be due to calves consuming milk with low lipid content. Patterns in Δ15Ncalf-cow were more difficult to interpret and highlight the complexity in nitrogen transfer between mother and offspring. When combined with similar data collected from Brazil and during a low mortality year in Argentina, we hypothesize this approach provides a way to retrospectively compare nutritional condition of breeding adult female SRW across nursery areas. Article in Journal/Newspaper Southern Right Whale University of St Andrews: Research Portal Argentina New Zealand Marine Mammal Science 38 2 486 499 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Capital breeder Eubalaena australis Maternal investment Physiology Southern right whale Stable isotope |
spellingShingle |
Capital breeder Eubalaena australis Maternal investment Physiology Southern right whale Stable isotope Carroll, Emma L. Dunshea, Glenn Ott, Paulo H. Valenzuela, Luciano O. Baker, C. Scott Childerhouse, Simon J. Gaggiotti, Oscar E. Flores, Paulo A. C. Groch, Karina Gröcke, Darren R. Hindell, Mark A. Lundquist, David Oliveira, Larissa R. Rowntree, Victoria Sironi, Mariano Newsome, Seth D. Variation in δ 13 C and δ 15 N values of mothers and their calves across southern right whale nursery grounds:the effects of nutritional stress? |
topic_facet |
Capital breeder Eubalaena australis Maternal investment Physiology Southern right whale Stable isotope |
description |
Southern right whales (SRW) are capital breeders that use stored energy reserves to sustain themselves and their calves on nursery areas. With successful calving events declining in some SRW populations, it has been hypothesized that nutritional stress in adult females causes reproductive failure or death of calves shortly after birth. Here we compared offsets in carbon and nitrogen isotope values of mothers and their offspring (Δ 13 C calf-cow and Δ 15 N calf-cow ) among three SRW populations. SRW from Aotearoa New Zealand, with high population growth rates and body conditions scores, have negative Δ 13 C calf-cow suggesting calves are utilizing 13 C-depleted lipid carbon in milk to fuel the synthesis of nonessential amino acids used to build new tissues and rapidly grow. In contrast, a significantly positive Δ 13 C calf-cow offset previously reported for SRW from Argentina during a mass die-off event was hypothesized to be due to calves consuming milk with low lipid content. Patterns in Δ15Ncalf-cow were more difficult to interpret and highlight the complexity in nitrogen transfer between mother and offspring. When combined with similar data collected from Brazil and during a low mortality year in Argentina, we hypothesize this approach provides a way to retrospectively compare nutritional condition of breeding adult female SRW across nursery areas. |
format |
Article in Journal/Newspaper |
author |
Carroll, Emma L. Dunshea, Glenn Ott, Paulo H. Valenzuela, Luciano O. Baker, C. Scott Childerhouse, Simon J. Gaggiotti, Oscar E. Flores, Paulo A. C. Groch, Karina Gröcke, Darren R. Hindell, Mark A. Lundquist, David Oliveira, Larissa R. Rowntree, Victoria Sironi, Mariano Newsome, Seth D. |
author_facet |
Carroll, Emma L. Dunshea, Glenn Ott, Paulo H. Valenzuela, Luciano O. Baker, C. Scott Childerhouse, Simon J. Gaggiotti, Oscar E. Flores, Paulo A. C. Groch, Karina Gröcke, Darren R. Hindell, Mark A. Lundquist, David Oliveira, Larissa R. Rowntree, Victoria Sironi, Mariano Newsome, Seth D. |
author_sort |
Carroll, Emma L. |
title |
Variation in δ 13 C and δ 15 N values of mothers and their calves across southern right whale nursery grounds:the effects of nutritional stress? |
title_short |
Variation in δ 13 C and δ 15 N values of mothers and their calves across southern right whale nursery grounds:the effects of nutritional stress? |
title_full |
Variation in δ 13 C and δ 15 N values of mothers and their calves across southern right whale nursery grounds:the effects of nutritional stress? |
title_fullStr |
Variation in δ 13 C and δ 15 N values of mothers and their calves across southern right whale nursery grounds:the effects of nutritional stress? |
title_full_unstemmed |
Variation in δ 13 C and δ 15 N values of mothers and their calves across southern right whale nursery grounds:the effects of nutritional stress? |
title_sort |
variation in δ 13 c and δ 15 n values of mothers and their calves across southern right whale nursery grounds:the effects of nutritional stress? |
publishDate |
2021 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/variation-in-13c-and-15n-values-of-mothers-and-their-calves-across-southern-right-whale-nursery-grounds(c4cf751d-cdbd-4df7-b5cb-7de295be4a80).html https://doi.org/10.1111/mms.12871 https://research-repository.st-andrews.ac.uk/bitstream/10023/25997/1/Carroll_Accepted_MMS_CowCalfPairSIOffset_AAM.pdf |
geographic |
Argentina New Zealand |
geographic_facet |
Argentina New Zealand |
genre |
Southern Right Whale |
genre_facet |
Southern Right Whale |
op_source |
Carroll , E L , Dunshea , G , Ott , P H , Valenzuela , L O , Baker , C S , Childerhouse , S J , Gaggiotti , O E , Flores , P A C , Groch , K , Gröcke , D R , Hindell , M A , Lundquist , D , Oliveira , L R , Rowntree , V , Sironi , M & Newsome , S D 2021 , ' Variation in δ 13 C and δ 15 N values of mothers and their calves across southern right whale nursery grounds : the effects of nutritional stress? ' , Marine Mammal Science , vol. Early View . https://doi.org/10.1111/mms.12871 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/mms.12871 |
container_title |
Marine Mammal Science |
container_volume |
38 |
container_issue |
2 |
container_start_page |
486 |
op_container_end_page |
499 |
_version_ |
1766208221156999168 |