Allosuckling in southern right whale calves
Allosuckling, the suckling of milk from a non-biological mother, occurs in some species of mammals. Allosuckling has not been quantified in baleen whale calves; therefore, we examine allosuckling in southern right whales (SRWs; Eubalaena australis) off Australia. SRWs are listed as Endangered under...
Published in: | Mammalian Biology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2024
|
Subjects: | |
Online Access: | https://pure.au.dk/portal/en/publications/d640eb8f-5992-4073-a5f3-11099676dccd https://doi.org/10.1007/s42991-023-00392-1 |
id |
ftuniaarhuspubl:oai:pure.atira.dk:publications/d640eb8f-5992-4073-a5f3-11099676dccd |
---|---|
record_format |
openpolar |
spelling |
ftuniaarhuspubl:oai:pure.atira.dk:publications/d640eb8f-5992-4073-a5f3-11099676dccd 2024-04-28T08:14:07+00:00 Allosuckling in southern right whale calves Sprogis, Kate R. Christiansen, Fredrik 2024-02 https://pure.au.dk/portal/en/publications/d640eb8f-5992-4073-a5f3-11099676dccd https://doi.org/10.1007/s42991-023-00392-1 eng eng https://pure.au.dk/portal/en/publications/d640eb8f-5992-4073-a5f3-11099676dccd info:eu-repo/semantics/openAccess Sprogis , K R & Christiansen , F 2024 , ' Allosuckling in southern right whale calves ' , Mammalian Biology , vol. 104 , no. 1 , pp. 91-99 . https://doi.org/10.1007/s42991-023-00392-1 Allomaternal care Allonursing Capital breeder Nonfilial nursing Offspring investment Unmanned aerial vehicle article 2024 ftuniaarhuspubl https://doi.org/10.1007/s42991-023-00392-1 2024-04-10T23:49:23Z Allosuckling, the suckling of milk from a non-biological mother, occurs in some species of mammals. Allosuckling has not been quantified in baleen whale calves; therefore, we examine allosuckling in southern right whales (SRWs; Eubalaena australis) off Australia. SRWs are listed as Endangered under the Australian Environment Protection and Biodiversity Conservation Act as their numbers remain below the estimated historical abundance. On a small aggregation area, where there were three mother–calf pairs present, we aimed to quantify the proportion of time that calves allosuckled relative to the time spent filial suckling. To achieve this, we conducted unmanned aerial vehicle focal follows on mother–calf pairs and video recorded all interactions among pairs (n = 22 interactions, 3 h total observation time). During interactions, allosuckling occurred in seven interactions, and filial nursing occurred in 11 interactions. One of the calves performed allosuckling, and it was the largest calf with the largest mother. The calf allosuckled from both of the non-biological mothers present. The average proportion of time allosuckling per interaction was 4% (95% CI = ± 0.01, range = 0–0.25), whilst filial nursing for the same calf was 8% (95% CI = ± 0.02, range = 0–0.37). It is important to understand the frequency of allosuckling, and to quantify the energetic benefits for allosuckling calves and the energetic cost incurred by targeted non-biological mothers. This is particularly pertinent for capital breeders who do not replenish lost energy reserves until they migrate to their feeding grounds. Article in Journal/Newspaper baleen whale Southern Right Whale Aarhus University: Research Mammalian Biology 104 1 91 99 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Allomaternal care Allonursing Capital breeder Nonfilial nursing Offspring investment Unmanned aerial vehicle |
spellingShingle |
Allomaternal care Allonursing Capital breeder Nonfilial nursing Offspring investment Unmanned aerial vehicle Sprogis, Kate R. Christiansen, Fredrik Allosuckling in southern right whale calves |
topic_facet |
Allomaternal care Allonursing Capital breeder Nonfilial nursing Offspring investment Unmanned aerial vehicle |
description |
Allosuckling, the suckling of milk from a non-biological mother, occurs in some species of mammals. Allosuckling has not been quantified in baleen whale calves; therefore, we examine allosuckling in southern right whales (SRWs; Eubalaena australis) off Australia. SRWs are listed as Endangered under the Australian Environment Protection and Biodiversity Conservation Act as their numbers remain below the estimated historical abundance. On a small aggregation area, where there were three mother–calf pairs present, we aimed to quantify the proportion of time that calves allosuckled relative to the time spent filial suckling. To achieve this, we conducted unmanned aerial vehicle focal follows on mother–calf pairs and video recorded all interactions among pairs (n = 22 interactions, 3 h total observation time). During interactions, allosuckling occurred in seven interactions, and filial nursing occurred in 11 interactions. One of the calves performed allosuckling, and it was the largest calf with the largest mother. The calf allosuckled from both of the non-biological mothers present. The average proportion of time allosuckling per interaction was 4% (95% CI = ± 0.01, range = 0–0.25), whilst filial nursing for the same calf was 8% (95% CI = ± 0.02, range = 0–0.37). It is important to understand the frequency of allosuckling, and to quantify the energetic benefits for allosuckling calves and the energetic cost incurred by targeted non-biological mothers. This is particularly pertinent for capital breeders who do not replenish lost energy reserves until they migrate to their feeding grounds. |
format |
Article in Journal/Newspaper |
author |
Sprogis, Kate R. Christiansen, Fredrik |
author_facet |
Sprogis, Kate R. Christiansen, Fredrik |
author_sort |
Sprogis, Kate R. |
title |
Allosuckling in southern right whale calves |
title_short |
Allosuckling in southern right whale calves |
title_full |
Allosuckling in southern right whale calves |
title_fullStr |
Allosuckling in southern right whale calves |
title_full_unstemmed |
Allosuckling in southern right whale calves |
title_sort |
allosuckling in southern right whale calves |
publishDate |
2024 |
url |
https://pure.au.dk/portal/en/publications/d640eb8f-5992-4073-a5f3-11099676dccd https://doi.org/10.1007/s42991-023-00392-1 |
genre |
baleen whale Southern Right Whale |
genre_facet |
baleen whale Southern Right Whale |
op_source |
Sprogis , K R & Christiansen , F 2024 , ' Allosuckling in southern right whale calves ' , Mammalian Biology , vol. 104 , no. 1 , pp. 91-99 . https://doi.org/10.1007/s42991-023-00392-1 |
op_relation |
https://pure.au.dk/portal/en/publications/d640eb8f-5992-4073-a5f3-11099676dccd |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s42991-023-00392-1 |
container_title |
Mammalian Biology |
container_volume |
104 |
container_issue |
1 |
container_start_page |
91 |
op_container_end_page |
99 |
_version_ |
1797580325196398592 |