2 Works

Data from: Reduced mitochondrial respiration in hybrid asexual lizards

Randy L. Klabacka, Hailey A. Parry, Kang Nian Yap, Ryan A. Cook, Victoria A. Herron, L. Miles Horne, Jose A. Maldonado, Jamie R. Oaks, Andreas N. Kavazis, Matthew K. Fujita, Tonia S. Schwartz & Matthew E. Wolak
The scarcity of asexual reproduction in vertebrates alludes to an inherent cost. Several groups of asexual vertebrates exhibit lower endurance capacity (a trait predominantly sourced by mitochondrial respiration) compared to congeneric sexual species. Here we measure endurance capacity in five species of Aspidoscelis lizards and examine mitochondrial respiration between sexual and asexual species using mitochondrial respirometry. Our results show reduced endurance capacity, mitochondrial respiration, and phenotypic variability in asexual species compared to parental sexual species...

Spatiotemporal variation in hatching success and nestling sex ratios track rapid movement of a songbird hybrid zone

Robert Driver, Valentina Ferretti, Emily S. Burton, Michael W. McCoy, Kerri C. Duerr & Robert L. Curry
Hybridization often occurs at the parapatric range interface between closely related species, but fitness outcomes vary: hybrid offspring exhibit diverse rates of viability and reproduction when compared to their parental species. The mobile hybrid zone between two chickadee congeners ( Poecile atricapillus x P. carolinensis ) has been well studied behaviorally and genetically but the viability of hybrids, as well as the underlying mechanisms contributing to hybrid fitness, have remained unclear. To better characterize the...

Registration Year

  • 2022
    2

Resource Types

  • Dataset
    2

Affiliations

  • Villanova University
    2
  • The University of Texas at Arlington
    1
  • East Carolina University
    1
  • Auburn University
    1
  • University of Missouri
    1
  • The University of Texas at El Paso
    1