Too Close for Comfort? Isotopic Niche Segregation in New Zealand's Odontocetes

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dc.citation.issue8
dc.citation.volume11
dc.contributor.authorPeters KJ
dc.contributor.authorBury SJ
dc.contributor.authorHinton B
dc.contributor.authorBetty EL
dc.contributor.authorCasano-Bally D
dc.contributor.authorParra GJ
dc.contributor.authorStockin KA
dc.contributor.editorCalizza E
dc.contributor.editorCareddu G
dc.contributor.editorCostantini ML
dc.coverage.spatialSwitzerland
dc.date.accessioned2023-11-29T18:43:00Z
dc.date.accessioned2024-07-25T06:51:40Z
dc.date.available2022-08-05
dc.date.available2023-11-29T18:43:00Z
dc.date.available2024-07-25T06:51:40Z
dc.date.issued2022-08-05
dc.description.abstractSpecies occurring in sympatry and relying on similar and limited resources may partition resource use to avoid overlap and interspecific competition. Aotearoa, New Zealand hosts an extraordinarily rich marine megafauna, including 50% of the world's cetacean species. In this study, we used carbon and nitrogen stable isotopes as ecological tracers to investigate isotopic niche overlap between 21 odontocete (toothed whale) species inhabiting neritic, mesopelagic, and bathypelagic waters. Results showed a clear niche separation for the bathypelagic Gray's beaked whales (Mesoplodon grayi) and sperm whales (Physeter macrocephalus), but high isotopic niche overlap and potential interspecific competition for neritic and mesopelagic species. For these species, competition could be reduced via temporal or finer-scale spatial segregation or differences in foraging behaviour. This study represents the first insights into the coexistence of odontocetes in a biodiverse hotspot. The data presented here provide a critical baseline to a system already ongoing ecosystem change via ocean warming and subsequent effects on prey abundance and distributions.
dc.description.confidentialfalse
dc.edition.editionAugust 2022
dc.format.pagination1179-
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/36009806
dc.identifier.citationPeters KJ, Bury SJ, Hinton B, Betty EL, Casano-Bally D, Parra GJ, Stockin KA. (2022). Too Close for Comfort? Isotopic Niche Segregation in New Zealand's Odontocetes.. Biology (Basel). 11. 8. (pp. 1179-).
dc.identifier.doi10.3390/biology11081179
dc.identifier.eissn2079-7737
dc.identifier.elements-typejournal-article
dc.identifier.issn2079-7737
dc.identifier.number1179
dc.identifier.piibiology11081179
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/71045
dc.languageeng
dc.publisherMDPI (Basel, Switzerland)
dc.publisher.urihttps://www.mdpi.com/2079-7737/11/8/1179
dc.relation.isPartOfBiology (Basel)
dc.rights(c) 2022 The Author/s
dc.rightsCC BY
dc.rights.urihttps://creativecommons.org/
dc.subjectSGD14
dc.subjectcarbon
dc.subjectdiet
dc.subjectdolphins
dc.subjectfeeding ecology
dc.subjectnitrogen
dc.subjectstable isotopes
dc.subjecttrophic relationships
dc.titleToo Close for Comfort? Isotopic Niche Segregation in New Zealand's Odontocetes
dc.typeJournal article
pubs.elements-id455705
pubs.organisational-groupOther
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