A5032390640- Avian ecology and behavior
- Wildlife Ecology and Conservation
- Isotope Analysis in Ecology
- Rangeland and Wildlife Management
- Species Distribution and Climate Change
- Marine animal studies overview
- Fire effects on ecosystems
- Animal Ecology and Behavior Studies
- Wildlife-Road Interactions and Conservation
- Ecology and Vegetation Dynamics Studies
- Animal Behavior and Reproduction
- Plant and animal studies
- Fish Ecology and Management Studies
- Mercury impact and mitigation studies
- Bird parasitology and diseases
- Peatlands and Wetlands Ecology
- Animal Vocal Communication and Behavior
- Marine and fisheries research
- Freshwater macroinvertebrate diversity and ecology
- Ecology and biodiversity studies
- Turtle Biology and Conservation
- Land Use and Ecosystem Services
- Indigenous Studies and Ecology
- Archaeology and ancient environmental studies
- Atmospheric and Environmental Gas Dynamics
Environment and Climate Change Canada
2016-2025
University of Saskatchewan
2008-2023
Populations of most North American aerial insectivores have undergone steep population declines over the past 40 years but relative importance factors operating on breeding, wintering, or stopover sites remains unknown. We used archival light-level geolocators to track phenology, movements and winter locations barn swallows (Hirdundo rustica; n = 27) from populations across America determine their migratory connectivity. identified an east-west continental divide for with birds western...
Van Wilgenburg, S. L., P. Sólymos, K. J. Kardynal, and M. D. Frey. 2017. Paired sampling standardizes point count data from humans acoustic recorders. Avian Conservation Ecology 12(1):13. https://doi.org/10.5751/ACE-00975-120113
Knowledge of spatial connectivity between breeding and non-breeding locations migratory birds their site fidelity are important for avian conservation. Ruby-throated Hummingbirds (RTHU, Archilochus colubris ) breed in eastern Canada west to the Rocky Mountains USA east Mississippi River spend period Mexico, Central America, southern Florida, USA. We measured hydrogen oxygen stable isotopic compositions adult RTHU tailfeathers (fourth rectrix) from three North America estimate grounds where...
1. Many important insect pests undertake seasonal migrations at continental scales in response to changes resource quality and availability. The frequency timing of these events could be influenced by the impact climate change on suitability different sites exploited throughout year, yet, many cases, little is known about origin populations, as tracking movements extremely challenging due their small body size. 2. use stable isotope measurements tissues combined with development...
Targeting bird migration connectivity adressed a pressing conservation policy question to save ortolan buntings.
We investigated movements of a western population Veeries (Catharus fuscescens) breeding in the Okanagan region British Columbia, Canada, 2013–2014 using light-level geolocators. tracked 9 individuals and incorporated state-space Kalman filter model approach to estimate movement parameters. During migration, traversed Rocky Mountains, Great Plains, Gulf Mexico, Caribbean Sea with stopovers generally closer shorter orthodromic (great circle) route than loxodromic (straight line) between first...
Identifying strategies that offer co-benefits for biodiversity protection, forest restoration and human well-being are important successful conservation outcomes. In this study, we identified opportunities where rehabilitation programs in Colombia also align with priority areas the of Neotropical migratory birds. We used citizen science eBird-based abundance estimates to define regions highest richness birds concern at montane elevations aligned these high domestic initiatives protection...
The discovery of spatial patterns in naturally occurring isotopes (e.g., δ2H, δ13C) at continental scales has been tremendously important providing a method to infer potential breeding and wintering origins migratory animals through assignment tissue-specific isoscapes. Single-isotope (i.e. δ2H) assignments birds molting South America have limited by the lack strong gradients precipitation δ2H there. We integrated an mvnpdf (multivariate normal probability density function) approach using...
Wellicome, T. I., K. J. Kardynal, R. Franken, and C. S. Gillies. 2014. Off-road sampling reveals a different grassland bird community than roadside sampling: implications for survey design estimates to guide conservation. Avian Conservation Ecology 9(1): 4.http://dx.doi.org/10.5751/ACE-00624-090104
Machtans, C. S., K. J. Kardynal, and P. A. Smith. 2014. How well do regional or national Breeding Bird Survey data predict songbird population trends at an intact boreal site? Avian Conservation Ecology 9(1): 5.http://dx.doi.org/10.5751/ACE-00649-090105
Wide-ranging apex predators are among the most challenging of all fauna to conserve and manage. This is especially true polar bear (Ursus maritimus), an iconic predator that hunted in Canada threatened by global climate change. We used combinations stable isotopes (13C,15N,2H,18O) hair from > 1000 individuals, sampled across much Canadian Arctic sub-Arctic, test ability isotopic profiles 'assign' bears (1) predefined managed subpopulations, (2) subpopulations defined similarities isotope...
The measurement of naturally occurring stable hydrogen (δ2H) and carbon (δ13C) isotopes in wings the eastern North American monarch butterflies (Danaus plexippus) have proven useful to infer natal origins individuals overwintering Mexico. This approach has provided a breakthrough for conservation because it is only viable means inferring at continental scales. Recently, routine simultaneous analyses tissue δ2H δ18O organic materials emerged leading questions whether dual these could be used...
Abstract Migratory bottlenecks concentrate individuals and populations of Nearctic–Neotropical migrants from across vast breeding areas. The extent to which such concentrations occur has important ramifications for interpreting migratory connectivity the vulnerability throughout annual cycle but investigations phenomena are rare. We inferred origins 11 species captured during fall migration in Darién region, northwestern Colombia, using feather stable-hydrogen isotope values (δ 2Hf). Our...
Monarch butterflies (Danaus plexippus) fuel their migration and overwinter energy needs through accumulated fat stores derived from plant nectars. Determining origins of these fuels is crucial to effective conservation programs. We used stable-hydrogen (δ2H) carbon (δ13C) isotope measurements in stored lipids monarchs raised under laboratory conditions as a proof principle for the isotopic spatial sourcing lipids. then applied this approach wild specimens collected 2015 2018 infer...
Understanding spatial connectivity of long-distance migrants is important for effective management and conservation both game nongame species. Hunting Nearctic-breeding shorebirds occurs in the Caribbean northern South America; however, origins harvested individuals are generally unknown. We used stable hydrogen isotopes (δ2H) feathers juvenile to infer birds at 2 sites Barbados using probabilistic assignments based on a terrestrial–freshwater δ2H isoscape. tissue δ13C δ15N values filter...
Conventional management of shoreline forest in harvested boreal landscapes involves retention treed buffer strips to provide habitat for wildlife species and protect aquatic habitats from deleterious effects harvesting. With forests being considered harvest several jurisdictions, it is important determine the potential impacts this disturbance on birds. In study, responses riparian- upland-nesting birds three levels (0%–50%, 50%–75%, 75%–100% within 100 m water) around wetlands were assessed...
Nebel, S., J. Casey, M.-A. Cyr, K. Kardynal, E. A. Krebs, F. Purves, M. Bélisle, R. Brigham, C. Knight, Morrissey, and G. Clark. 2020. Falling through the policy cracks: implementing a roadmap to conserve aerial insectivores in North America. Avian Conservation Ecology 15(1):23. https://doi.org/10.5751/ACE-01618-150123