5 Works

Rapid recovery by fat- and muscle-depleted Blackpoll Warblers following trans-oceanic migration is driven by time-minimization

Nicholas J. Bayly, Kenneth V. Rosenberg, Ryan Norris, Philip D. Taylor & Keith A. Hobson
Non-stop endurance flights are a defining characteristic of many long-distance migratory birds but subsequent recovery phases are not typically distinguished from fueling phases (collectively ‘stopovers’), despite endurance flights inducing marked physiological changes including flight muscle atrophy and gastrointestinal tract reductions. Here, we hypothesize that recovery requires unique behavioral adaptations, leading to departures from the predictions of optimal migration theory for time-minimizing migrants. We predict that recovering birds will 1) select (moist) food-rich habitats on arrival;...

Processed GPS tracks for breeding Herring Gulls from four colonies in the eastern Gulf of Maine, Canada

Sarah Gutowsky
Opportunist gulls use anthropogenic food subsidies, which can bolster populations, but negatively influence sensitive local ecosystems and areas of human settlement. In the eastern Gulf of Maine, Canada, breeding herring gulls Larus argentatus have access to resources from aquaculture, fisheries, and mink farms, but the relative influence of industry on local gull populations is unknown. In 2014, 2015, and 2019, we acquired and processed tracking data from GPS devices on 39 incubating herring gulls at...

Sympatrically-breeding congeneric seabirds (Stercorarius spp.) from Arctic Canada migrate to four oceans

Autumn-Lynn Harrison, Paul Woodard, Mark Mallory & Jennie Rausch
Polar systems of avian migration remain unpredictable. For seabirds nesting in the Nearctic, it is often difficult to predict which of the world’s oceans birds will migrate to after breeding. Here we report on three related seabird species that migrated across four oceans following sympatric breeding at a central Canadian high Arctic nesting location. Using telemetry we tracked pomarine jaeger (Stercorarius pomarinus, n=1) to the Arctic Ocean to the western Pacific Ocean; parasitic jaeger (S....

American black duck PTT data from Atlantic Canada

Matthew English, Liam Peck, Gregory Robertson, Shawn Craik & Mark Mallory
American black ducks, native to eastern North America, have been the focus of significant international conservation and management programs. The combined USA and Canadian population has traditionally been managed as a single population; however black duck demographics may vary by region. To help understand potential regional differences in black ducks, we used satellite telemetry to assess migratory chronology and movements of black ducks wintering near Windsor, Nova Scotia, Canada, near the northern limits of their...

GIS data for mapping the Leigh Fermors' journey through the southern Mani Peninsula, Greece, in 1951

Rebecca Seifried & Chelsea Gardner
GIS data created by mapping Patrick (Paddy) and Joan Leigh Fermor's journey through the Mani peninsula in 1951. The zip file contains 6 layers (in GeoJSON format) that can be used to display least-cost models of portions of their route, the hikes we carried out to recreate them, and our final interpretation of their route from start to finish.

Registration Year

  • 2021

Resource Types

  • Dataset


  • Acadia University
  • University of Massachusetts Amherst
  • Smithsonian Institution
  • University of Guelph
  • Western University
  • Université Sainte-Anne
  • Cornell University