Browsing Department of Biology by Title
Now showing items 1-20 of 34
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Activation of Innate Immune-Response Genes in Little Brown Bats (Myotis lucifugus) Infected with the Fungus Pseudogymnoascus destructans
(PLoS ONE, 2014-11-12)Recently bats have been associated with the emergence of diseases, both as reservoirs for several new viral diseases in humans and other animals and, in the northern Americas, as hosts for a devastating fungal disease that ... -
Aquatic Angiosperms at Unusual Depths in Shoal Lake, Manitoba-Ontario
(The Ottawa Field-Naturalists' Club, 1986)Shoal Lake (elevation 323 m) was found to contain extensive macrophyte communities growing at depths of 12-14 m and consisting of the angiosperms Elodea canadensis, Najas flexilis, Potamogeton foliosus, P. zosteriformis, ... -
An assessment of prairie management practices for maintaining habitat quality for the endangered Poweshiek skipperling butterfly in Canada
(University of Notre Dame, 2022-08-10)The Poweshiek skipperling (Oarisma poweshiek) was once a common prairie butterfly in central North America, but is now critically endangered in Canada and the United States. The Poweshiek skipperling is confined to the ... -
Changes in Body Condition of Hibernating Bats Support the Thrifty Female Hypothesis and Predict Consequences for Populations with White-Nose Syndrome
(2011-06-22)White-nose syndrome (WNS) is a new disease of bats that has devastated populations in eastern North America. Infection with the fungus, Geomyces destructans, is thought to increase the time bats spend out of torpor during ... -
Chill out: physiological responses to winter ice-angling in two temperate freshwater fishes
(Society for Experimental Biology, 2017-04-17)A large body of research has documented the stress response of fish following angling capture. Nearly all of these studies have taken place during the open-water season, with almost no work focused on the effects of capture ... -
Context-dependent conservation responses to emerging wildlife diseases
(Ecological Society of America, 2015)Emerging infectious diseases pose an important threat to wildlife. While established protocols exist for combating outbreaks of human and agricultural pathogens, appropriate management actions before, during, and after the ... -
Could localized warm areas inside cold caves reduce mortality of hibernating bats affected by white-nose syndrome?
(2009-03-05)White-nose syndrome (WNS) is a mysterious condition affecting populations of hibernating bats in the northeastern US. Little is known about its physiological effects on bats and no intervention has so far been proposed to ... -
Egg Laying Behaviour and Larval Shelter-Construction Patterns of the endangered Mottled Duskywing (Erynnis martialis) in Canada
(The Lepidopterists' Society, 2022-03-09)The Mottled duskywing (Erynnis martialis) butterfly is endangered, living in pine forests and oak barrens in Canada and the eastern United States of America. While host plants and larval behaviour is documented in Mottled ... -
Endangered Oarisma poweshiek butterfly larval foraging and adult habitat interactions in Manitoba, Canada
(University of WinnipegUniversity of Winnipeg, 2021-10-29)The Poweshiek skipperling (Oarisma poweshiek) is endemic to the tall grass prairie in North America, and is now critically endangered globally. Existing populations are scattered amongst tall grass prairie remnants. However, ... -
Endangered Oarisma poweshiek larvae vary their graminoid forage in Manitoba, Canada
(Cambridge University Press, 2022)The Poweshiek skipperling (Oarisma poweshiek) is endemic to the tall grass prairie in North America and is now critically endangered globally. Existing populations are scattered among tall grass prairie remnants. However, ... -
Endemism and Conservation of Sticklebacks in the Queen Charlotte Islands
(The Ottawa Field-Naturalists' Club, 1973) -
Energetic benefits of enhanced summer roosting habitat for little brown bats (Myotis lucifugus) recovering from white-nose syndrome
(2016)Habitat modification can improve outcomes for imperilled wildlife. Insectivorous bats in North America face a range of conservation threats, including habitat loss and white-nose syndrome (WNS). Even healthy bats face ... -
An Energy-Based Body Temperature Threshold between Torpor and Normothermia for Small Mammals
(The University of Chicago, 2007-09-05)Field studies of use of torpor by heterothermic endotherms suffer from the lack of a standardized threshold differentiating torpid body temperatures (T_b) from normothermic T_b's. This threshold can be more readily observed ... -
Evidence of Late-Summer Mating Readiness and Early Sexual Maturation in Migratory Tree-Roosting Bats Found Dead at Wind Turbines
(2012-10)Understanding animal mating systems is an important component of their conservation, yet the precise mating times for many species of bats are unknown. The aim of this study was to better understand the details and timing ... -
Feasting, fasting and freezing: energetic effects of meal size and temperature on torpor expression by little brown bats Myotis lucifugus
(Company of Biologists, 2010)Torpor is an adaptation for energy conservation employed by many species of small-bodied endotherms. However, surprisingly little is known regarding proximate factors influencing day-to-day variation in torpor expression ... -
Glycerophospholipid Profiles of Bats with White-Nose Syndrome
(The University of Chicago, 2015)Pseudogymnoascus destructans is an ascomycetous fungus responsible for the disease dubbed white-nose syndrome (WNS) and massive mortalities of cave-dwelling bats. The fungus infects bat epidermal tissue, causing damage to ... -
Hibernation energetics of free-ranging little brown bats
(Company of Biologists, 2012)Hibernation physiology and energy expenditure have been relatively well studied in large captive hibernators, especially rodents, but data from smaller, free-ranging hibernators are sparse. We examined variation in the ... -
The influence of dissolved oxygen on winter habitat selection by largemouth bass: an integration of field biotelemetry studies and laboratory experiments
(University of Chicago Press, 2009-01-20)In this study, field biotelemetry and laboratory physiology approaches were coupled to allow understanding of the behavioral and physiological responses of fish to winter hypoxia. The biotelemetry study compared dissolved ... -
Injecting youth into peer-review to increase its sustainability: a case study of ecology journals
(Queen's University, 2010-02-15)The "tragedy of the reviewer commons", where the referee pool is being drained by an influx of manuscript submissions, is becoming an increasing problem for journals. To mitigate this growing concern, we suggest that there ... -
Long-term effects of surgically implanted telemetry tags on the nutritional physiology and condition of wild freshwater fish
(Inter-Research, 2009-03-09)Little is known about the long-term consequences of surgically implanted telemetry devices on wild fish, as they are rarely recaptured. We used wild largemouth bass Micropterus salmoides as a model to evaluate the long-term ...
