3 Works

Collective decision-making appears more egalitarian in populations where group fission costs are higher

James Herbert-Read, Amy Wade, Indar Ramnarine & Christos Ioannou
Collective decision-making is predicted to be more egalitarian in conditions where the costs of group fission are higher. Here we ask whether Trinidadian guppies (Poecilia reticulata) living in high or low predation environments, and thereby facing differential group fission costs, make collective decisions in line with this prediction. Using a classic decision-making scenario, we found that fish from high predation environments switched their positions within groups more frequently than fish from low predation environments. Because...

Data from: Evidence for contemporary and historical gene flow between guppy populations in different watersheds, with a test for associations with adaptive traits

Léa Blondel, Lyndsey Baillie, Jessica Quinton, Jahson B. Alemu, Ian Paterson, Andrew P. Hendry & Paul Bentzen
In dendritic river systems, gene flow is expected to occur primarily within watersheds. Yet, rare cross‐watershed transfers can also occur, whether mediated by (often historical) geological events or (often contemporary) human activities. We explored these events and their potential evolutionary consequences by analyzing patterns of neutral genetic variation (microsatellites) and adaptive phenotypic variation (male color) in wild guppies (Poecilia reticulata) distributed across two watersheds in northern Trinidad. We found the expected signatures of within‐watershed gene...

Data from: Biodiversity assessment of tropical shelf eukaryotic communities via pelagic eDNA metabarcoding

Owen S. Wangensteen, Judith Bakker, Stefano Mariani, Charles Baillie, Dayne Buddo, Demian D. Chapman, Austin J. Gallagher, Tristan L. Guttridge & Heidi Hertler
Our understanding of marine communities and their functions in an ecosystem relies on the ability to detect and monitor species distributions and abundances. Currently, the use of environmental DNA (eDNA) metabarcoding is increasingly being applied for the rapid assessment and monitoring of aquatic species. Most eDNA metabarcoding studies have either focused on the simultaneous identification of a few specific taxa/groups or have been limited in geographical scope. Here we employed eDNA metabarcoding to compare beta...

Registration Year

  • 2019
    3

Resource Types

  • Dataset
    3

Affiliations

  • University of the West Indies
    3
  • The Arctic University of Norway
    1
  • University of Cambridge
    1
  • Dalhousie University
    1
  • McGill University
    1
  • University of Salford
    1
  • Florida International University
    1
  • Thousand Waves Foundation
    1
  • Bimini Biological Field Station Foundation
    1
  • University of British Columbia
    1