Nicholas A. Cairns
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View article: Overwintering Behavior and Predation in Common Musk Turtles (Sternotherus odoratus)
Overwintering Behavior and Predation in Common Musk Turtles (Sternotherus odoratus) Open
We studied the overwintering behavior of common musk turtles (Sternotherus odoratus) near the northern edge of the species' range using radiotelemetry. The turtles (n = 6) were found under the ice in winter in shallow (< 2 m) water, above …
View article: Cytonuclear discordance in the crowned-sparrows, Zonotrichia atricapilla and Zonotrichia leucophrys
Cytonuclear discordance in the crowned-sparrows, Zonotrichia atricapilla and Zonotrichia leucophrys Open
The golden-crowned (Zonotrichia atricapilla) and white-crowned (Z. leucophrys) sparrows have been presented as a compelling case for rapid speciation. They display divergence in song and plumage with overlap in their breeding ranges implyi…
View article: Cytonuclear discordance in the crowned-sparrows,<i>Zonotrichia atricapilla</i>and<i>Zonotrichia leucophrys</i>: a mitochondrial selective sweep?
Cytonuclear discordance in the crowned-sparrows,<i>Zonotrichia atricapilla</i>and<i>Zonotrichia leucophrys</i>: a mitochondrial selective sweep? Open
The golden-crowned ( Zonotrichia atricapilla ) and white-crowned ( Z. leucophrys ) sparrows have been presented as a compelling case for rapid speciation. They display divergence in song and plumage with overlap in their breeding ranges im…
View article: MORPHOLOGY, REPRODUCTION, SEASONAL ACTIVITY AND HABITAT USE OF A NORTHERN POPULATION OF THE SMOOTH GREENSNAKE (OPHEODRYS VERNALIS)
MORPHOLOGY, REPRODUCTION, SEASONAL ACTIVITY AND HABITAT USE OF A NORTHERN POPULATION OF THE SMOOTH GREENSNAKE (OPHEODRYS VERNALIS) Open
The Smooth Greensnake (Opheodrys vernalis) is a small, slender, oviparous, colubrid snake that is widely distributed in North America. Nonetheless, there have been few studies on this species, and little is known about Canadian populations…
View article: High and dry: Trade-off in arboreal calling in a treefrog mediated by local environment
High and dry: Trade-off in arboreal calling in a treefrog mediated by local environment Open
Trade-offs shaping behavioral variation are often influenced by the environment. We investigated the role that the environment plays in mediating trade-offs using a widespread frog with a conspicuous mating display, Pseudacris crucifer. We…
View article: Morphology, reproduction, habitat use, and hibernation of Red-bellied Snake (<i>Storeria occipitomaculata</i>) near its northern range limit
Morphology, reproduction, habitat use, and hibernation of Red-bellied Snake (<i>Storeria occipitomaculata</i>) near its northern range limit Open
Northern regions limit ectotherms to relatively short periods of feeding and breeding interrupted by long periods of inactivity. This may force cool-climate ectotherms into different ecological or demographic trade-offs than their southern…
View article: Using Behavioral Observations to Develop Escape Devices for Freshwater Turtles Entrapped in Fishing Nets
Using Behavioral Observations to Develop Escape Devices for Freshwater Turtles Entrapped in Fishing Nets Open
The drowning of freshwater turtles following incidental capture in fishing gear has the potential to cause population declines. Fyke nets can be equipped with bycatch reduction devices that enable the escape of turtles before they drown. W…