7 Works

Data from: Out of the Andes: patterns of diversification in clearwing butterflies

Marianne Elias, Mathieu Joron, Keith Willmott, Vera Kaiser, Karina Silva-Brandão, Carlos Arias, Luz Miryam Gomez Piñeres, Sandra Uribe, Andrew Brower, André Freitas & Chris Jiggins
Global biodiversity peaks in the tropical forests of the Andes, a striking geological feature that has likely been instrumental in generating biodiversity by providing opportunities for both vicariant and ecological speciation. However, the role of these mountains in the diversification of insects, which dominate biodiversity, has been poorly explored using phylogenetic methods. Here we study the role of the Andes in the evolution of a diverse Neotropical insect group, the clearwing butterflies. We used dated...

Data from: Contrasting patterns of genetic diversity at three different genetic markers in a marine mammal metapopulation

Joseph I Hoffman, Kanchon Dasmahapatra, William Amos, Caleb Phillips, Tom Gelatt & John Bickham
Many studies use genetic markers to explore population structure and variability within species. However, only a minority use more than one type of marker and, despite increasing evidence of a strong link between heterozygosity and individual fitness, few ask whether diversity correlates with population trajectory. To address these issues, we analysed data from the Steller's sea lion, Eumetiopias jubatus, where three stocks are distributed over a vast geographic range and where both genetic samples and...

Data from: Geographic variation of the major histocompatibility complex in Eastern Atlantic grey seals (Halichoerus grypus)

Kristina Cammen, Joe I Hoffman, Leslie A Knapp, John Harwood & William Amos
Pathogen-driven balancing selection maintains high genetic diversity in many vertebrates, particularly in the major histocompatibility complex (MHC) immune system gene family, which is often associated with disease susceptibility. In large natural populations where subpopulations face different pathogen pressures, the MHC should show greater genetic differentiation within a species than neutral markers. We examined genetic diversity at the MHC-DQB locus and nine putatively neutral microsatellite markers in grey seals (Halichoerus grypus) from eight United Kingdom colonies,...

Data from: Linked morphological changes during palate evolution in early tetrapods

Charles B. Kimmel, Brian Sidlauskas & Jennifer A. Clack
We examined the shapes and sizes of dermal bones of the palate of selected Palaeozoic tetrapods in order to identify the ancestral states of palatal bone morphologies in the earliest tetrapods, to learn how the composition of the palate varies within and among early tetrapod radiations, and recognize evolutionary correlations among the size and shapes of skeletal elements in this important group of animals. We find that whereas the palatal bones themselves and their arrangements...

Data from: Towards a worldwide wood economics spectrum

Amy E. Zanne, G. Lopez-Gonzalez, David A. Coomes, Jugo Ilic, Steven Jansen, Simon L. Lewis, Regis B. Miller, Nathan G. Swenson, Michael C. Wiemann & Jerome Chave
Wood performs several essential functions in plants, including mechanically supporting aboveground tissue, storing water and other resources, and transporting sap. Woody tissues are likely to face physiological, structural and defensive trade-offs. How a plant optimizes among these competing functions can have major ecological implications, which have been under-appreciated by ecologists compared to the focus they have given to leaf function. To draw together our current understanding of wood function, we identify and collate data on...

Data from: Exploring the mechanisms underlying a heterozygosity-fitness correlation for canine size in the Antarctic fur seal Arctocephalus gazella

Joseph I Hoffman, Jaume Forcada & William Amos
Although heterozygosity-fitness correlations (HFCs) are widely reported in the literature, most studies use too few markers to allow the proximate mechanisms to be convincingly resolved. Two competing hypotheses have been proposed: the general effects hypothesis, in which marker heterozygosity correlates with genome-wide heterozygosity and hence the inbreeding coefficient f, and the local effects hypothesis, in which one or more of the markers by chance exhibit associative overdominance. To explore the relative contributions of general and...

Data from: Angiosperm wood structure: global patterns in vessel anatomy and their relationship to wood density and potential conductivity

Amy E. Zanne, Mark Westoby, Daniel S Falster, David D Ackerly, Scott R Loarie, Sarah E J Arnold, David A. Coomes, David D. Ackerly, Sarah E. J. Arnold & Daniel S. Falster
Woody stems comprise a large biological carbon fraction and determine water transport between roots and leaves; their structure and function can influence both carbon and hydrological cycles. While angiosperm wood anatomy and density determine hydraulic conductivity and mechanical strength, little is known about interrelations across many species. We compiled a global dataset comprising two anatomical traits for 3005 woody angiosperms: mean vessel lumen area ( ) and number per unit area (N). From these, we...

Registration Year

  • 2010
    7

Resource Types

  • Dataset
    7

Affiliations

  • University of Cambridge
    7
  • National Evolutionary Synthesis Center
    1
  • Royal Botanic Gardens
    1
  • University of California, Berkeley
    1
  • University of Melbourne
    1
  • University of Edinburgh
    1
  • Macquarie University
    1
  • University of Leeds
    1
  • Queen Mary University of London
    1
  • University of Oregon
    1