Skull shape variation in extant pangolins (Pholidota: Manidae): allometric patterns and systematic implications
| Autor: | Guillaume Billet, Lionel Hautier, Philippe Gaubert, Sérgio Ferreira-Cardoso, Frédéric Delsuc |
|---|---|
| Přispěvatelé: | Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UR226, Centre de Recherche en Paléontologie - Paris (CR2P), Muséum national d'Histoire naturelle (MNHN)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
food.ingredient [SDV]Life Sciences [q-bio] 010603 evolutionary biology 01 natural sciences 03 medical and health sciences cryptic lineages food Manis systematic [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology allometry medicine Ecology Evolution Behavior and Systematics Phataginus 030304 developmental biology 0303 health sciences biology [SDV.BA]Life Sciences [q-bio]/Animal biology Pangolin conservation Pholidota biology.organism_classification Skull medicine.anatomical_structure ontogeny Evolutionary biology Manis tricuspis Molecular phylogenetics Animal Science and Zoology Allometry [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
| Zdroj: | Zoological Journal of the Linnean Society Zoological Journal of the Linnean Society, Linnean Society of London, 2019, 188, pp.255-275. ⟨10.1093/zoolinnean/zlz096⟩ Zoological Journal of the Linnean Society, Linnean Society of London, 2019, pp.1-21. ⟨10.1093/zoolinnean/zlz096/5618763⟩ Zoological Journal of the Linnean Society, 2019, 188, pp.255-275. ⟨10.1093/zoolinnean/zlz096⟩ |
| ISSN: | 1096-3642 0024-4082 |
| Popis: | Pangolins are among the most endangered groups of mammals, comprising eight extant species delineated into three genera. Despite several studies dedicated to their skeletal anatomy, the potential taxonomic insight from cranial morphological variation in extant Pholidota is yet to be assessed with modern geometric morphometric methods. We present the first comprehensive study on the cranial morphology of extant pangolins and discuss its implications for the taxonomy and evolution of the group. We performed landmark-based morphometric analyses on 241 museum specimens to describe the variation in skull shape in seven of the eight extant species. Our analyses revealed genus- and species-level morphological discrimination, with Asian species (Manis spp.) being grouped together, whereas African pangolins present distinct skull shapes between small (Phataginus spp.) and large (Smutsia spp.) species. Analyses of allometry also identified a set of traits whose allometric trajectories distinguish Asian from African specimens. Finally, we uncovered intraspecific variation in skull shape in white-bellied pangolins (Phataginus tricuspis) that partly corroborates recent DNA-based differentiation among biogeographically distinct populations. Overall, our results shed light on the morphological diversity of the skull of these enigmatic myrmecophagous mammals and confirm the genus-level classification and cryptic diversity within the white-bellied pangolin revealed by molecular phylogenetics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|