3 Works

Data from: Actuarial senescence in a long-lived orchid challenges our current understanding of ageing

Johan Petter Dahlgren, Fernando Colchero, Owen R. Jones, Dag-Inge Øien, Asbjørn Moen & Nina Sletvold
The dominant evolutionary theory of actuarial senescence—an increase in death rate with advancing age—is based on the concept of a germ cell line that is separated from the somatic cells early in life. However, such a separation is not clear in all organisms. This has been suggested to explain the paucity of evidence for actuarial senescence in plants. We used a 32 year study of Dactylorhiza lapponica that replaces its organs each growing season, to...

Data from: Geographic variation in advertisement calls of a Microhylid frog—testing the role of drift and ecology

Ko-Huan Lee, Pei-Jen L. Shaner, Yen-Po Lin & Si-Min Lin
Acoustic signals for mating are important traits that could drive population differentiation and speciation. Ecology may play a role in acoustic divergence through direct selection (e.g., local adaptation to abiotic environment), constraint of correlated traits (e.g., acoustic traits linked to another trait under selection), and/or interspecific competition (e.g., character displacement). However, genetic drift alone can also drive acoustic divergence. It is not always easy to differentiate the role of ecology versus drift in acoustic divergence....

Data from: Euglossine bees mediate only limited long-distance gene flow in a tropical vine

Øystein H. Opedal, Mohsen Falahati-Anbaran, Elena Albertsen, W. Scott Armbruster, Rocío Pérez-Barrales, Hans K. Stenøien & Christophe Pélabon
Euglossine bees (Apidae: Euglossini) have long been hypothesized to act as long-distance pollinators of many low-density tropical plants. We tested this hypothesis by the analysis of gene flow and genetic structure within and among populations of the euglossine bee-pollinated vine Dalechampia scandens. Using microsatellite markers, we assessed historical gene flow by the quantification of regional-scale genetic structure and isolation by distance among 18 populations, and contemporary gene flow by the estimation of recent migration rates...

Registration Year

  • 2016
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Affiliations

  • National Taiwan Normal University
    3
  • Norwegian University of Science and Technology
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  • University of Alaska System
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  • University of Portsmouth
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  • University of Southern Denmark
    1
  • Uppsala University
    1
  • University of Tehran
    1