Ancient crested penguin constrains timing of recruitment into seabird hotspot
Ancient crested penguin constrains timing of recruitment into seabird hotspot
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古代冠企鹅限制了海鸟热点地区的招募时间
DOI:
10.1098/rspb.2020.1497
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Ksepka, Daniel T.
中科院分区:
文献类型:
--
作者:
Thomas, Daniel B.;Tennyson, Alan J.;Scofield, R. Paul;Heath, Tracy A.;Pett, Walker;Ksepka, Daniel T.
New Zealand is a globally significant hotspot for seabird diversity, but the sparse fossil record for most seabird lineages has impeded our understanding of how and when this hotspot developed. Here, we describe multiple exceptionally well-preserved specimens of a new species of penguin from tightly dated (3.36–3.06 Ma) Pliocene deposits in New Zealand. Bayesian and parsimony analyses placeEudyptes atatusp. nov. as the sister species to all extant and recently extinct members of the crested penguin genusEudyptes. The new species has a markedly more slender upper beak and mandible compared with otherEudyptespenguins. Our combined evidence approach reveals that deep bills evolved in both crested and stiff-tailed penguins (Pygoscelis) during the Pliocene. That deep bills arose so late in the greater than 60 million year evolutionary history of penguins suggests that dietary shifts may have occurred as wind-driven Pliocene upwelling radically restructured southern ocean ecosystems. Ancestral area reconstructions using BioGeoBEARS identify New Zealand as the most likely ancestral area for total-group penguins, crown penguins and crested penguins. Our analyses provide a timeframe for recruitment of crown penguins into the New Zealand avifauna, indicating this process began in the late Neogene and was completed via multiple waves of colonizing lineages.
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影响因子:
3.7
作者:
Chávez Hoffmeister M;Carrillo Briceño JD;Nielsen SN
通讯作者:
Nielsen SN
影响因子:
1.4
作者:
Degrange, Federico J.;Ksepka, Daniel T.;Tambussi, Claudia P.
通讯作者:
Tambussi, Claudia P.
影响因子:
1.4
作者:
Ksepka, Daniel T.;Fordyce, R. Ewan;Jones, Craig M.
通讯作者:
Jones, Craig M.
DOI:
10.2307/4084061
发表时间:
1972
期刊:
The Auk
影响因子:
--
作者:
J. Warham
通讯作者:
J. Warham
影响因子:
2.2
作者:
T. Naish;Florian Wehland;G. Wilson;G. Browne;R. Cook;H. Morgans;M. Rosenberg;P. King;D. Smale;C. Nelson;P. Kamp;B. Ricketts
通讯作者:
B. Ricketts