Evolution and Diversification of Delphinid Skull Shapes

Research output: Contribution to journal › Journal article › Research › peer-review

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Evolution and Diversification of Delphinid Skull Shapes. / Galatius, Anders; Racicot, Rachel; McGowen, Michael; Olsen, Morten Tange.

In: iScience, Vol. 23, No. 10, 101543, 2020.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Galatius, A, Racicot, R, McGowen, M & Olsen, MT 2020, 'Evolution and Diversification of Delphinid Skull Shapes', iScience, vol. 23, no. 10, 101543. https://doi.org/10.1016/j.isci.2020.101543

APA

Galatius, A., Racicot, R., McGowen, M., & Olsen, M. T. (2020). Evolution and Diversification of Delphinid Skull Shapes. iScience, 23(10), [101543]. https://doi.org/10.1016/j.isci.2020.101543

Vancouver

Galatius A, Racicot R, McGowen M, Olsen MT. Evolution and Diversification of Delphinid Skull Shapes. iScience. 2020;23(10). 101543. https://doi.org/10.1016/j.isci.2020.101543

Author

Galatius, Anders ; Racicot, Rachel ; McGowen, Michael ; Olsen, Morten Tange. / Evolution and Diversification of Delphinid Skull Shapes. In: iScience. 2020 ; Vol. 23, No. 10.

Bibtex

@article{b81068fec7c545bb9898899c1032514d,
title = "Evolution and Diversification of Delphinid Skull Shapes",
abstract = "The diversity of the dolphin family was established during a short window of time. We investigated delphinid skull shape evolution, mapping shapes on an up-to-date nuclear phylogeny. In this model, the common ancestor was similar to Lagenorhynchus albirostris. Initial diversification occurred in three directions: toward specialized raptorial feeders of small prey with longer, narrower beaks, e.g., Delphinus; toward wider skulls with downward-oriented rostra and reduced temporal fossae, exemplified by suction feeders, e.g., Globicephala; and toward shorter and wider skulls/rostra and enlarged temporal fossae, e.g., Orcinus. Skull shape diversity was established early, the greatest later developments being adaptation of Steno to raptorial feeding on large prey and the convergence of Pseudorca toward Orcinus, related to handling large prey. Delphinid skull shapes are related to feeding mode and prey size, whereas adaptation to habitat is not marked. Over a short period, delphinid skulls have evolved a diversity eclipsing other extant odontocete clades.",
keywords = "FINNED PILOT WHALES, STENELLA-CLYMENE, DIVING BEHAVIOR, TURSIOPS-TRUNCATUS, FEEDING MORPHOLOGY, GRAMPUS-GRISEUS, DOLPHIN CETACEA, SPOTTED DOLPHIN, TOOTHED WHALES, ATLANTIC",
author = "Anders Galatius and Rachel Racicot and Michael McGowen and Olsen, {Morten Tange}",
year = "2020",
doi = "10.1016/j.isci.2020.101543",
language = "English",
volume = "23",
journal = "iScience",
issn = "2589-0042",
publisher = "Elsevier",
number = "10",

}

RIS

TY - JOUR

T1 - Evolution and Diversification of Delphinid Skull Shapes

AU - Galatius, Anders

AU - Racicot, Rachel

AU - McGowen, Michael

AU - Olsen, Morten Tange

PY - 2020

Y1 - 2020

N2 - The diversity of the dolphin family was established during a short window of time. We investigated delphinid skull shape evolution, mapping shapes on an up-to-date nuclear phylogeny. In this model, the common ancestor was similar to Lagenorhynchus albirostris. Initial diversification occurred in three directions: toward specialized raptorial feeders of small prey with longer, narrower beaks, e.g., Delphinus; toward wider skulls with downward-oriented rostra and reduced temporal fossae, exemplified by suction feeders, e.g., Globicephala; and toward shorter and wider skulls/rostra and enlarged temporal fossae, e.g., Orcinus. Skull shape diversity was established early, the greatest later developments being adaptation of Steno to raptorial feeding on large prey and the convergence of Pseudorca toward Orcinus, related to handling large prey. Delphinid skull shapes are related to feeding mode and prey size, whereas adaptation to habitat is not marked. Over a short period, delphinid skulls have evolved a diversity eclipsing other extant odontocete clades.

AB - The diversity of the dolphin family was established during a short window of time. We investigated delphinid skull shape evolution, mapping shapes on an up-to-date nuclear phylogeny. In this model, the common ancestor was similar to Lagenorhynchus albirostris. Initial diversification occurred in three directions: toward specialized raptorial feeders of small prey with longer, narrower beaks, e.g., Delphinus; toward wider skulls with downward-oriented rostra and reduced temporal fossae, exemplified by suction feeders, e.g., Globicephala; and toward shorter and wider skulls/rostra and enlarged temporal fossae, e.g., Orcinus. Skull shape diversity was established early, the greatest later developments being adaptation of Steno to raptorial feeding on large prey and the convergence of Pseudorca toward Orcinus, related to handling large prey. Delphinid skull shapes are related to feeding mode and prey size, whereas adaptation to habitat is not marked. Over a short period, delphinid skulls have evolved a diversity eclipsing other extant odontocete clades.

KW - FINNED PILOT WHALES

KW - STENELLA-CLYMENE

KW - DIVING BEHAVIOR

KW - TURSIOPS-TRUNCATUS

KW - FEEDING MORPHOLOGY

KW - GRAMPUS-GRISEUS

KW - DOLPHIN CETACEA

KW - SPOTTED DOLPHIN

KW - TOOTHED WHALES

KW - ATLANTIC

U2 - 10.1016/j.isci.2020.101543

DO - 10.1016/j.isci.2020.101543

M3 - Journal article

C2 - 33083714

VL - 23

JO - iScience

JF - iScience

SN - 2589-0042

IS - 10

M1 - 101543

ER -

ID: 254997776