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2017-09-12 - Article/Dans un journal avec peer-review - Anglais - 31 page(s)

Dehon Manuel , Perrard Adrien, Engel M.S., Nel A., Michez Denis , "Antiquity of cleptoparasitism among bees revealed by morphometric and phylogenetic analysis of a Paleocene fossil nomadine (Hymenoptera: Apidae)" in Systematic Entomology, 42, 3, 543-554, 10.1111/syen.12230

  • Edition : Blackwell Publishing
  • Codes CREF : Entomologie (DI3163), Biologie (DI3100), Paléontologie et paléoécologie [zoologie] (DI312E), Systématique des espèces [zoologie] (DI312A), Morphologie des espèces [zoologie] (DI3129)
  • Unités de recherche UMONS : Zoologie (S869)
  • Instituts UMONS : Institut des Biosciences (Biosciences)
Texte intégral :

Abstract(s) :

(Anglais) Cleptoparasitism is a way of life involving the theft of resources by one animal from another. This behavior occurs in many bee tribes but its origin and evolution remain obscure, particularly owing to the relative scarcity of bees in the fossil record. Hitherto, no fossil evidence has been previously recorded to trace the origin of cleptoparasitim among bees. In the current study, we present the first cleptoparasitic bee fossil, providing analyses of its taxonomic affinities and a complete description. The specimen happens to also be one of the earliest bee fossils, having been discovered in the spongo-diatomitic volcanic paleolake of Menat (Paleocene) in France. We employed geometric morphometrics of the forewing shape to assess the taxonomic affinities of the fossil with modern apoid tribes. Our data set included 979 specimens representing 50 tribes and 226 extant species. Based on linear and geometric morphometrics, we demonstrate that the fossil’s forewing shape is similar to Apidae, and particularly to the tribe Epeolini (Nomadinae). The fossil is described as Paleoepeolus micheneri gen.n., sp.n. and provides the first direct evidence on the antiquity of cleptoparasitism among bees. This published work has been registered on Zoobank. URL: http://zoobank.org/References/BBBE2217-6CAE-48F9-851F-716B813DFEBF.