Data from: Adaptive and neutral markers both show continent-wide population structure of mountain pine beetle (Dendroctonus ponderosae)Philip D. Batista, Jasmine K. Janes, Celia K. Boone, Brent W. Murray & Felix A. H. Sperling
Assessments of population genetic structure and demographic history have traditionally been based on neutral markers while explicitly excluding adaptive markers. In this study, we compared the utility of putatively adaptive and neutral single-nucleotide polymorphisms (SNPs) for inferring mountain pine beetle population structure across its geographic range. Both adaptive and neutral SNPs, and their combination, allowed range-wide structure to be distinguished and delimited a population that has recently undergone range expansion across northern British Columbia and...
Data from: Influence of landscape features on the microgeographic genetic structure of a resident songbird.Rachael V. Adams, Stefanie E. LaZerte, Ken A. Otter & Theresa M. Burg
Landscape features influence individual dispersal and as a result can affect both gene flow and genetic variation within and between populations. The landscape of British Columbia, Canada, is already highly heterogeneous due to natural ecological and geological transitions, but disturbance from human-mediated processes has further fragmented continuous habitat, particularly in the central plateau region. In this study, we evaluated the effects of landscape heterogeneity on the genetic structure of a common resident songbird, the black-capped...
Data from: Learning to cope: vocal adjustment to urban noise is correlated with prior experience in black-capped chickadeesStefanie E. LaZerte, Hans Slabbekoorn & Ken A. Otter
Urban noise can interfere with avian communication through masking, but birds can reduce this interference by altering their vocalizations. Although several experimental studies indicate that birds can rapidly change their vocalizations in response to sudden increases in ambient noise, none have investigated whether this is a learned response that depends on previous exposure. Black-capped chickadees (Poecile atricapillus) change the frequency of their songs in response to both fluctuating traffic noise and experimental noise. We investigated...
Data from: Age-related prenatal maternal effects and postnatal breeding experience have different influences on nestling development in an altricial passerinePierre-Paul Bitton & Russell D. Dawson
Reproductive success and nestling performance are related to the age of parents across several vertebrate taxa. However, because breeding experience and prenatal maternal investment in reproduction often covary, the source of these age-related differences can be difficult to determine. In this study, we evaluated the influence of prenatal maternal effects and postnatal breeding experience on the performance of nestling tree swallows Tachycineta bicolor by conducting a carefully controlled partial cross-fostering experiment. We swapped half-broods of...
Remotely-sensed and bottom-up survey information were compiled on eight variables measuring the direct and indirect human pressures on the environment globally in 1993 and 2009. This represents not only the most current information of its type, but also the first temporally-consistent set of Human Footprint maps. Data on human pressures were acquired or developed for: 1) built environments, 2) population density, 3) electric infrastructure, 4) crop lands, 5) pasture lands, 6) roads, 7) railways, and...
Data from: Refuge or predation risk? Alternate ways to perceive hiker disturbance based on maternal state of female caribouFrederic Lesmerises, Chris J. Johnson & Martin-Hugues St-Laurent
Human presence in natural environments is often a source of stress that is perceived by large ungulates as an increased risk of predation. Alternatively, disturbance induced by hikers creates a relatively predator-free space that may serve as a refuge. We measured the behavioral responses of female caribou to disturbance associated with the presence of hikers during summer in the Gaspésie National Park. We used those data to determine whether caribou responded negatively to human activity...
University of Northern British Columbia6
City College of New York1
University of Alberta1
Centre of Excellence for Environmental Decisions1
Center for Northern Studies1
Université Libre de Bruxelles1
Wildlife Conservation Society1
University of New England1