Files in this item
Effect of kelp gull harassment on southern right whale calf survival : a long-term capture–recapture analysis
Item metadata
dc.contributor.author | Agrelo, Macarena | |
dc.contributor.author | Marón, Carina F. | |
dc.contributor.author | Daura-Jorge, Fábio G. | |
dc.contributor.author | Rowntree, Victoria J. | |
dc.contributor.author | Sironi, Mariano | |
dc.contributor.author | Hammond, Philip S. | |
dc.contributor.author | Ingram, Simon N. | |
dc.contributor.author | Vilches, Florencia O. | |
dc.contributor.author | Seger, Jon | |
dc.contributor.author | Simões-Lopes, Paulo C. | |
dc.date.accessioned | 2023-06-29T11:30:01Z | |
dc.date.available | 2023-06-29T11:30:01Z | |
dc.date.issued | 2023-06-07 | |
dc.identifier | 287743024 | |
dc.identifier | 034d9652-134c-4637-8d75-e21a06413c9a | |
dc.identifier | 85161183046 | |
dc.identifier.citation | Agrelo , M , Marón , C F , Daura-Jorge , F G , Rowntree , V J , Sironi , M , Hammond , P S , Ingram , S N , Vilches , F O , Seger , J & Simões-Lopes , P C 2023 , ' Effect of kelp gull harassment on southern right whale calf survival : a long-term capture–recapture analysis ' , Biology Letters , vol. 19 , no. 6 , 20230119 . https://doi.org/10.1098/rsbl.2023.0119 | en |
dc.identifier.issn | 1744-9561 | |
dc.identifier.other | RIS: urn:DCF52ACAAD7FE71B22EEB70D6D18CF25 | |
dc.identifier.other | ORCID: /0000-0002-2381-8302/work/137089269 | |
dc.identifier.uri | https://hdl.handle.net/10023/27849 | |
dc.description | Funding: The authors thank the Coordination of Superior Level Staff Improvement (CAPES) from Brazil for providing a doctoral scholarship and grant CAPES-PRINT (grant no. 88887.370641/2019-00) to M.A. The National Council for Technological and Scientific Development (CNPq) from Brazil provided research grants to F.G.D.-J. (grant no. 308867/2019-0), and P.C.S.-L. (grant no. 305573/2013-6). | en |
dc.description.abstract | Kelp gulls (Larus dominicanus) commonly feed on the skin and blubber of surfacing southern right whales (SRW, Eubalaena australis) in the near shore waters of Península Valdés (PV), Argentina. Mothers and especially calves respond to gull attacks by changing their swimming speeds, resting postures and overall behaviour. Gull-inflicted wounds per calf have increased markedly since the mid-1990s. Unusually high mortality of young calves occurred locally after 2003, and increasing evidence points to gull harassment as a factor contributing to the excess deaths. After leaving PV, calves undertake a long migration with their mothers to summer feeding areas; their health during this strenuous exertion is likely to affect their probabilities of first-year survival. To explore the effects of gull-inflicted wounds on calf survival, we analysed 44 capture–recapture observations between 1974 and 2017, for 597 whales photo-identified in their years of birth between 1974 and 2011. We found a marked decrease in first-year survival associated with an increase in wound severity over time. Our analysis supports recent studies indicating that gull harassment at PV may impact SRW population dynamics. | |
dc.format.extent | 7 | |
dc.format.extent | 949467 | |
dc.language.iso | eng | |
dc.relation.ispartof | Biology Letters | en |
dc.subject | Eubalaena australis | en |
dc.subject | Gull-inflicted lesions | en |
dc.subject | Mortality | en |
dc.subject | Population dynamics | en |
dc.subject | QL Zoology | en |
dc.subject | QA Mathematics | en |
dc.subject | DAS | en |
dc.subject | MCC | en |
dc.subject | AC | en |
dc.subject.lcc | QL | en |
dc.subject.lcc | QA | en |
dc.title | Effect of kelp gull harassment on southern right whale calf survival : a long-term capture–recapture analysis | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Biology | en |
dc.contributor.institution | University of St Andrews. Sea Mammal Research Unit | en |
dc.contributor.institution | University of St Andrews. Scottish Oceans Institute | en |
dc.contributor.institution | University of St Andrews. Centre for Research into Ecological & Environmental Modelling | en |
dc.contributor.institution | University of St Andrews. Marine Alliance for Science & Technology Scotland | en |
dc.identifier.doi | https://doi.org/10.1098/rsbl.2023.0119 | |
dc.description.status | Peer reviewed | en |
This item appears in the following Collection(s)
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.