7 Works

Data from: Social learning in a high-risk environment: incomplete disregard for the ‘minnow that cried pike’ results in culturally transmitted neophobia

Adam L. Crane, Anthony G. E. Mathiron & Maud C. O. Ferrari
Many prey species rely on conspecifics to gather information about unknown predation threats, but little is known about the role of varying environmental conditions on the efficacy of social learning. We examined predator-naive minnows that had the opportunity to learn about predators from experienced models that were raised in either a low- or high-risk environment. There were striking differences in behaviour among models; high-risk models showed a weaker response to the predator cue and became...

Data from: The phylogenetics of succession can guide restoration: an example from abandoned mine sites in the subarctic

Stephanie Shooner, Chelsea Chisholm & Thomas Jonathan Davies
1. Phylogenetic tools have increasingly been used in community ecology to describe evolutionary relationships among co-occurring species. In studies of succession, such tools may allow us to identify evolutionary lineages most suited for particular stages of succession and habitat rehabilitation. However, to date these two applications have been largely separate. Here, we suggest that information on phylogenetic community structure might help inform community restoration strategies following major disturbance. 2. Our study examined phylogenetic patterns of...

Data from: Despite introgressive hybridization, North American birches (Betula spp.) maintain strong differentiation at nuclear microsatellite loci

Ashley M. Thomson, Christopher W. Dick, Ana L. Pascoini & Selvadurai Dayanandan
Extensive chloroplast introgression has been documented in polyploid Betula species of eastern North America. However, the extent to which the nuclear genomes of these species are differentiated is unknown. Therefore, we evaluated genetic differentiation among largely sympatric Betula papyrifera, B. alleghaniensis, and B. lenta using nuclear microsatellite markers. Principal components analysis (PCA) and analysis of molecular variation (AMOVA) were used to evaluate genetic differentiation. Bayesian model-based clustering was used to identify putatively admixed individuals. Despite...

Data from: The interaction between the spatial distribution of resource patches and population density: consequences for intra-specific growth and morphology

Bailey Jacobson, James W.A. Grant, Pedro R. Peres-Neto & James W. A. Grant
1. How individuals within a population distribute themselves across resource patches of varying quality has been an important focus of ecological theory. The ideal free distribution predicts equal fitness amongst individuals in a 1 : 1 ratio with resources, whereas resource defence theory predicts different degrees of monopolization (fitness variance) as a function of temporal and spatial resource clumping and population density. 2. One overlooked landscape characteristic is the spatial distribution of resource patches, altering...

Data from: The evolution of morphological diversity in continental assemblages of Passerine birds

Knud Andreas Jønsson, Jean Philippe Lessard, Robert E. Ricklefs & Jean-Philippe Lessard
Understanding geographic variation in the species richness and lineage composition of regional biotas is a long standing goal in ecology. Why do some evolutionary lineages proliferate while others do not, and how do new colonists fit into an established fauna? Here, we analyse the morphological structure of assemblages of passerine birds in four biogeographic regions to examine the relative influence of colonization history and niche-based processes on regional communities of passerine birds. Using morphological traits...

Data from: Climate mediates the effects of disturbance on ant assemblage structure

Heloise Gibb, Nathan J. Sanders, Robert R. Dunn, Simon Watson, Manoli Photakis, Silvia Abril, Alan N. Andersen, Elena Angulo, Inge Armbrecht, Xavier Arnan, Fabricio B. Baccaro, Tom R. Bishop, Raphael Boulay, Cristina Castracani, Israel Del Toro, Thibaut Delsinne, Mireia Diaz, David A. Donoso, Martha L. Enríquez, Tom M. Fayle, Donald H. Feener, Matthew C. Fitzpatrick, Crisanto Gómez, Donato A. Grasso, Sarah Groc … & C. Gomez
Many studies have focused on the impacts of climate change on biological assemblages, yet little is known about how climate interacts with other major anthropogenic influences on biodiversity, such as habitat disturbance. Using a unique global database of 1128 local ant assemblages, we examined whether climate mediates the effects of habitat disturbance on assemblage structure at a global scale. Species richness and evenness were associated positively with temperature, and negatively with disturbance. However, the interaction...

Data from: Population size is weakly related to quantitative genetic variation and trait differentiation in a stream fish

Jacquelyn Lee Ann Wood, Defne Tezel, Destin Joyal & Dylan John Fraser
How population size influences quantitative genetic variation and differentiation among natural, fragmented populations remains unresolved. Small, isolated populations might occupy poor quality habitats and lose genetic variation more rapidly due to genetic drift than large populations. Genetic drift might furthermore overcome selection as population size decreases. Collectively, this might result in directional changes in additive genetic variation (VA) and trait differentiation (QST) from small to large population size. Alternatively, small populations might exhibit larger variation...

Registration Year

  • 2015
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Resource Types

  • Dataset
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Affiliations

  • Concordia University
    7
  • McGill University
    3
  • University of Quebec at Montreal
    1
  • Estación Biológica de Doñana
    1
  • University of Massachusetts Amherst
    1
  • Stanford University
    1
  • University of Michigan-Ann Arbor
    1
  • Field Museum of Natural History
    1
  • University of Saskatchewan
    1
  • La Trobe University
    1