8 Works

Data from: Explosive diversification of marine fishes at the Cretaceous-Paleogene boundary

Michael E. Alfaro, Brant C. Faircloth, Richard C. Harrington, Laurie Sorenson, Matt Friedman, Christine E. Thacker, Carl H. Oliveros, David Černý & Thomas J. Near
The Cretaceous–Palaeogene (K–Pg) mass extinction is linked to the rapid emergence of ecologically divergent higher taxa (for example, families and orders) across terrestrial vertebrates, but its impact on the diversification of marine vertebrates is less clear. Spiny-rayed fishes (Acanthomorpha) provide an ideal system for exploring the effects of the K–Pg on fish diversification, yet despite decades of morphological and molecular phylogenetic efforts, resolution of both early diverging lineages and enormously diverse subclades remains problematic. Recent...

Data from: Differential introgression of a female competitive trait in a hybrid zone between sex-role reversed species

Sara E. Lipshutz, Joana I. Meier, Matthew J. Miller, Graham Derryberry, Ole Seehausen & Elizabeth Perrault Derryberry
Mating behavior between recently diverged species in secondary contact can impede or promote reproductive isolation. Traditionally, researchers focus on the importance of female mate choice and male-male competition in maintaining or eroding species barriers. Although female-female competition is widespread, little is known about its role in the speciation process. Here, we investigate a case of interspecific female competition and its influence on patterns of phenotypic and genetic introgression between species. We examine a hybrid zone...

Data from: The effects of skeletal asymmetry on interpreting biological variation and taphonomy in the fossil record

Brandon P. Hedrick, Emma R. Schachner, Gabriel Rivera, Peter Dodson & Stephanie E. Pierce
Biological asymmetry is present in all bilaterally symmetric organisms as a result of normal developmental instability. However, fossilized organisms, which have undergone distortion due to burial, may have additional asymmetry as a result of taphonomic processes. To investigate this issue, we evaluated the magnitude of shape variation resulting from taphonomy on vertebrate bone using a novel application of fluctuating asymmetry. We quantified the amount of total variance attributed to asymmetry in a taphonomically distorted fossil...

Data from: Resolving deep nodes in an ancient radiation of neotropical fishes in the presence of conflicting signals from incomplete lineage sorting

Fernando Alda, Victor A. Tagliacollo, Maxwell J. Bernt, Brandon T. Waltz, William B. Ludt, Brant C. Faircloth, Michael E. Alfaro, James S. Albert & Prosanta Chakrabarty
Resolving patterns of ancient and rapid diversifications is one of the most challenging tasks in evolutionary biology. These difficulties arise from confusing phylogenetic signals that are associated with the interplay of incomplete lineage sorting and homoplasy. Phylogenomic analyses of hundreds, or even thousands, of loci offer the potential to resolve such contentious relationships. Yet, how much useful phylogenetic information these large data sets contain remains uncertain and often goes untested. Here, we assess the utility...

Data from: Phenotypic and transcriptomic responses to salinity stress across genetically and geographically divergent Tigriopus californicus populations

Melissa B. De Biasse, Yasmeen Kawji, Morgan W. Kelly & Melissa B. DeBiasse
Species inhabiting the North American west coast intertidal must tolerate an extremely variable environment, with large fluctuations in both temperature and salinity. Uncovering the mechanisms for this tolerance is key to understanding species’ persistence. We tested for differences in salinity tolerance between populations of Tigriopus californicus copepods from locations in northern (Bodega Reserve) and southern (San Diego) California known to differ in temperature, precipitation, and humidity. We also tested for differences between populations in their...

Data from: Bottom-up trait-mediated indirect effects decrease pathogen transmission in a tritrophic system

Bret D. Elderd
A plant's induction of secondary defenses helps to decrease herbivore damage by changing resource quality. While these chemical or physical defenses may directly decrease herbivory, they can also have indirect consequences. In a tritrophic system consisting of a plant, an insect herbivore, and an insect pathogen, plant based trait-mediated indirect effects (TMIEs) can alter host-pathogen interactions and, thereby, indirectly affect disease transmission. In a series of field experiments, individual soybean plants (Glycine max) were sprayed...

Data from: Light stabilizers added to the shell of coextruded wood-high density polyethylene composites to improve mechanical and anti-UV aging properties

Chaozheng Liu, Changtong Mei, Bing Xu, Weimin Chen, Cheng Yong, Ke Wang & Qinglin Wu
Weathering of wood-plastic composite (WPC) leads to discoloration and cracks, which greatly limits its outdoor application. In this study, light stabilizers (including UV-327, HS-944, and Nano-SiO2) were added to the shell of coextruded high-density polyethylene (HDPE) based WPC to improve its anti-ultraviolet (UV) aging property and simultaneously to maintain its good mechanical property. The obtained results showed that the UV-327 was the most effective light stabilizer on improving the mechanical and anti-UV aging properties of...

Data from: Transcriptomics reveal transgenerational effects in purple sea urchin embryos: adult acclimation to upwelling conditions alters the response of their progeny to differential pCO2 levels

Juliet M. Wong, Kevin M. Johnson, Morgan W. Kelly & Gretchen E. Hofmann
Understanding the mechanisms with which organisms can respond to a rapidly changing ocean is an important research priority in marine sciences, especially in light of recent predictions regarding the pace of ocean change in the coming decades. Transgenerational effects, in which the experience of the parental generation can shape the phenotype of their offspring, may serve as such a mechanism. In this study, adult purple sea urchins, Strongylocentrotus purpuratus, were conditioned to regionally and ecologically...

Registration Year

  • 2018
    8

Resource Types

  • Dataset
    8

Affiliations

  • Louisiana State University
    8
  • Louisiana State University of Alexandria
    3
  • University of California Los Angeles
    2
  • University of Pennsylvania
    1
  • University of Tennessee at Chattanooga
    1
  • Natural History Museum of Los Angeles County
    1
  • Louisiana State University Agricultural Center
    1
  • University of Louisiana at Lafayette
    1
  • University of Bern
    1
  • University of California, Santa Barbara
    1