6 Works

Exceptional multifunctionality in the feeding apparatus of a mid-Cambrian radiodont

Joseph Moysiuk & Jean-Bernard Caron
Radiodonts (stem Euarthropoda) were ecologically diverse, but species generally displayed limited functional specialization of appendages along the body axis compared to crown group euarthropods. This is puzzling because such functional specialization is considered to have been an important driver of euarthropod ecological diversification. One way to circumvent this constraint could have been the functional specialization of different parts of the frontal appendages, known to have been ecologically important in radiodonts. This hypothesis has yet to...

Foraging strategies, craniodental traits and interaction in the bite force of Neotropical frugivorous bats (Phyllostomidae: Stenodermatinae)

Leidy Viviana García Herrera, Leidy Azucena Ramírez Fráncel, Giovany Guevara Cardona, Gladys Reinoso Flórez, Alfonso Sánchez Hernández, Burton K. Lim & Sergio Losada Prado
1. Bats in the family Phyllostomidae exhibit great diversity in skull size and morphology that reflects the degree of resource division and ecological overlap in the group. In particular, the subfamily Stenodermatinae has high morphological diversification associated with cranial and mandibular traits that is associated with the ability to consume the full range of available fruits (soft and hard). 2. Was analyzed craniodental traits and their relationship to the bite force in 343 specimens distributed...

Interrogating discordance resolves relationships in the rapid radiation of Old World fruit bats (Chiroptera: Pteropodidae)

Nicolas Nesi, Stephen Rossiter, Michael McGowen, Georgia Tsagkogeorga, Burton Lim, Susan Tsang, Violaine Nicolas, Aude Lalis, Silke Riesle Sbarbaro, Sigit Wiantoro, Alan Hitch, Javier Juste, Corinna Pinzari, Frank Bonaccorso, Nancy Simmons, Annette Scanlon & Christopher Todd
The family Pteropodidae (Old World fruit bats) comprises >200 species distributed across the Old World tropics and subtropics. Most pteropodids feed on fruit, suggesting an early origin of frugivory, although several lineages have shifted to nectar-based diets. Pteropodids are of exceptional conservation concern with >50% of species considered threatened, yet the systematics of this group has long been debated, with uncertainty surrounding early splits attributed to an ancient rapid diversification. Resolving the relationships among the...

Size-driven preservational and macroecological biases in the latest Maastrichtian terrestrial vertebrate assemblages of North America

Caleb Brown, Nicolas Campione, Gregory Wilson Mantilla & David Evans
The end-Cretaceous (K/Pg) mass-extinction event is the most recent and well-understood of the “Big Five” and triggered establishment of modern terrestrial ecosystem structure. Despite the depth of research into this event, our knowledge of upper Maastrichtian terrestrial deposits globally relies primarily on assemblage-level data limited to a few well-sampled formations in North America, the Hell Creek and Lance formations. These assemblages disproportionally affect our interpretations of this important interval. Multiple investigations have quantified diversity patterns...

The relationship between sternum variation and mode of locomotion in birds

Talia M. Lowi-Merri, Roger B. J. Benson, Santiago Claramunt & David C. Evans
Background: The origin of powered avian flight was a locomotor innovation that expanded the ecological potential of maniraptoran dinosaurs, leading to remarkable variation in modern birds (Neornithes). The avian sternum is the anchor for the major flight muscles and, despite varying widely in morphology, has not been extensively studied from evolutionary or functional perspectives. We quantify sternal variation across a broad phylogenetic scope of birds using 3D geometric morphometrics methods. Using this comprehensive dataset, we...

Anchored phylogenomics and a revised classification of the Planidial Larva Clade of Jewel Wasps (Hymenoptera: Chalcidoidea)

JUNXIA ZHANG, John Heraty, Christopher Darling, Robert Kresslein, Austin Baker, Javier Torréns, Jean-Yves Rasplus, Alan Lemmon & Emily Lemmon
Planidia are free-living, mobile first-instar larvae that are notable in their ability to transition on a single host between different larval stadia, and for completing their development on the host prepupa as ectoparasitoids, effectively acting as larval-pupal external koinobionts. Within Chalcidoidea, a mega-diverse superfamily of parasitoid wasps, taxa with a planidium form a monophyletic group, the Planidial-Larva-Clade (PLC), which has been comprised of three recognized groups: Eutrichosomatinae (Pteromalidae), Perilampidae (Chrysolampinae, Perilampinae, Philomidinae and the unplaced...

Registration Year

  • 2021
    6

Resource Types

  • Dataset
    6

Affiliations

  • Royal Ontario Museum
    6
  • University of Toronto
    2
  • Estación Biológica de Doñana
    1
  • University of Washington
    1
  • University of Tolima
    1
  • Robert Koch Institute
    1
  • Hebei University
    1
  • University of South Australia
    1
  • Queen Mary University of London
    1
  • University of Hawaii at Hilo
    1