Invader or resident? Ancient-DNA reveals rapid species turnover in New Zealand little penguins
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The expansion of humans into previously unoccupied parts of the globe is thought to have driven the decline and extinction of numerous vertebrate species. In New Zealand, human settlement in the late thirteenth century AD led to the rapid demise of a distinctive vertebrate fauna, and also a number of 'turnover' events where extinct lineages were subsequently replaced by closely related taxa. The recent genetic detection of an Australian little penguin (Eudyptula novaehollandiae) in southeastern New Zealand may potentially represent an additional ‘cryptic’ invasion. Here we use ancient-DNA (aDNA) analysis and radiocarbon dating of pre-human, archaeological and historical Eudyptula remains to reveal that the arrival of E. novaehollandiae in New Zealand probably occurred between AD 1500 and 1900, following the anthropogenic decline of its sister taxon, the endemic Eudyptula minor. This rapid turnover event, revealed by aDNA, suggests that native species decline can be masked by invasive taxa, and highlights the potential for human-mediated biodiversity shifts.
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There are two congeneric taxa of little penguins; Eudyptula novaehollandiae occurring in Australia and south east New Zealand (Otago) and Eudyptula minor occurring in all other parts of New Zealand.
“Research has suggested that there are two congeneric taxa of little penguins; Eudyptula novaehollandiae being little penguins occurring in Australia and south east New Zealand (Otago) and Eudyptula minor being little penguins occurring in all other parts of New Zealand (Peucker et al. 2009;Grosser et al. 2015Grosser et al. , 2016Grosser et al. , 2017)).”
From Effects of the presence of zoo visitors on zoo‐housed little penguins ( <i>Eudyptula minor</i> ) (2022) · cites this paper as Grosser et al. 2016
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“By contrast, in regions where human settlement occurred during the relative climatic stability of the Holocene, it seems clear that anthropogenic factors do indeed explain major extinction events [8,9].”
BackgroundCampos, P. F., Willerslev, E., Sher, A., Orlando, L., Axelsson, E., Tikhonov, A., Aaris-Sørensen, K., Greenwood, A. D., Kahlke, R.-D., Kosintsev, P., et al. (2010) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0907189107 · Cited by 239 · see citing works
Coalescent Modelling Suggests Recent Secondary-Contact of Cryptic Penguin Species
Grosser, S., Burridge, C. P., Peucker, A. J., & Waters, J. M. (2015) · PLOS ONE · doi:10.1371/journal.pone.0144966 · Cited by 53 · see citing works
Self-citationPeucker, A. J., Dann, P., & Burridge, C. P. (2009) · The Auk · doi:10.1525/auk.2009.08055 · Cited by 45 · see citing works
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Cited by
Sorted by citations
Effects of the presence of zoo visitors on zoo‐housed little penguins ( <i>Eudyptula minor</i> )
Chiew, S. J., Butler, K. L., Fanson, K. V., Eyre, S., Coleman, G. J., Sherwen, S. L., Melfi, V., & Hemsworth, P. H. (2022) · New Zealand Journal of Zoology · doi:10.1080/03014223.2021.1896560 · Cited by 9 · see citing works
- Authors
- Grosser, S., Rawlence, N. J., Anderson, C. N. K., Smith, I. W. G., Scofield, R. P., & Waters, J. M.
- Affiliations
- Allan Wilson Centre (NZ)
- Scripps Institution of Oceanography (US)
- University of Otago (NZ)
- Canterbury Museum (NZ)
- Corresponding author
- Grosser, Stefanie
- ORCID
- Venue
- Proceedings of the Royal Society B: Biological Sciences
- Publisher
- The Royal Society
- Published
- 2016-02-10
- Volume
- 283
- Issue
- 1824
- Pages
- 20152879
- ISSN
- 0080-4649 (ISSN-L)
- 0962-8452
- 1471-2954
- PMC
- PMC4760177
- OpenAlex
- W2289682228
- Cited by
- 37
- References
- 4
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 1 · 2023: 4 · 2022: 5 · 2021: 2 · 2020: 3 · 2019: 3 · 2018: 6 · 2017: 6 · 2016: 3
- FWCI
- 4.85
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Proceedings of the Royal Society B Biological Sciences (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Innovative Research Group Project of the National Natural Science Foundation of China
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
- Physical Sciences › Environmental Science › Ecology › Animal Ecology and Behavior Studies
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Forensic and Genetic Research
- Keywords
- little penguin, Eudyptula minor, species turnover, cryptic invasion, extinction, ancient DNA, radiocarbon dating, New Zealand
- MeSH terms
- Animals, DNA, Mitochondrial, Fossils, Molecular Sequence Data, New Zealand, Phylogeny, Sequence Analysis, DNA, Spheniscidae, Radiometric Dating, Animal Distribution
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