5 Works

Data from: Compositional and functional shifts in arctic fungal communities in response to experimentally increased snow depth

Tatiana A. Semenova, Luis N. Morgado, Jeffrey M. Welker, Marilyn D. Walker, Erik Smets & József Geml
Climate warming leads to more intensive evaporation from the Arctic sea resulting in increased precipitation in the low Arctic, e.g., higher snowfall during winter. Deeper snow keeps the arctic soils warmer and alters soil attributes and vegetation, e.g., increase in nitrogen availability, expansion of shrubs and decline in shade-intolerant lichens and bryophytes. Changes in soil properties and vegetation are expected to influence on saprotrophic and plant-symbiotic fungi, but how increased snow depth affects their community...

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...

Data from: Effect of pyric herbivory on source-sink dynamics in grassland birds

Craig A. Davis, Roy T. Churchwell, Samuel D. Fuhlendorf, David M. Engle & Torre J. Hovick
Grasslands world-wide provide a host of ecosystem services. In particular, these grasslands serve as biodiversity repositories for a myriad of imperilled animal species. One such group is grassland birds, which have experienced significant declines, predominantly caused by extensive loss and degradation of native grasslands. Rangeland management that promotes increasing and sustaining livestock production through reducing the inherent, disturbance-driven variability that historically occurred in grasslands is considered a major contributing factor to these declines. An alternative...

Data from: Evolutionary consequences of ecological factors: pollinator reliability predicts mating-system traits of a perennial plant

Øystein H. Opedal, Elena Albertsen, W. Scott Armbruster, Rocio Perez-Barrales, Mohsen Falahati-Anbaran & Christophe Pelabon
The reproductive-assurance hypothesis predicts that mating-system traits will evolve towards increased autonomous self-pollination in plant populations experiencing unreliable pollinator service. We tested this long-standing hypothesis by assessing geographic covariation among pollinator reliability, outcrossing rates, heterozygosity, and relevant floral traits across populations of Dalechampia scandens in Costa Rica. Mean outcrossing rates ranged from 0.16 to 0.49 across four populations, and covaried with the average rates of pollen arrival on stigmas, a measure of pollinator reliability. Across...

Data from: Potentially adaptive mitochondrial haplotypes as a tool to identify divergent nuclear loci

Michael R. Garvin, William D. Templin, Anthony J. Gharrett, Nick DeCovich, Christine M. Kondzela, Jeffrey R. Guyon & Megan V. McPhee
1. Genetic tools are commonly used for conservation and management of at-risk species. Individuals are often sampled from mixtures composed of many populations, which creates a need to assign individuals to their source. This can be problematic when the genetic divergence among source populations is weak but can be improved using adaptive genetic loci, which should show stronger levels of divergence. 2. We previously reported a signature of positive selection in the mitochondrial-encoded ND5 subunit...

Registration Year

  • 2016
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Resource Types

  • Dataset
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Affiliations

  • University of Alaska System
    5
  • University of Portsmouth
    2
  • University of Tehran
    2
  • Norwegian University of Science and Technology
    2
  • Oregon State University
    1
  • Oklahoma State University
    1
  • Alaska Fisheries Science Center
    1
  • Leiden University
    1
  • Alaska Department of Fish and Game
    1
  • Naturalis Biodiversity Center
    1