A5084454359- Bat Biology and Ecology Studies
- Marine animal studies overview
- Effects of Environmental Stressors on Livestock
- Viral Infections and Vectors
- Animal Vocal Communication and Behavior
- Physiological and biochemical adaptations
- Avian ecology and behavior
- Wildlife Ecology and Conservation
- Bone Tumor Diagnosis and Treatments
- Ichthyology and Marine Biology
- Mercury impact and mitigation studies
- Bone Metabolism and Diseases
Bat Conservation International
2023-2024
University of Northern British Columbia
2024
Western University
2014-2019
University of Winnipeg
2011-2017
University of Calgary
2012
White-nose syndrome (WNS) is a new disease of bats that has devastated populations in eastern North America. Infection with the fungus, Geomyces destructans, thought to increase time spend out torpor during hibernation, leading starvation. Little known about hibernation healthy, free-ranging and more data are needed help predict consequences WNS. Trade-offs presumably exist between energetic benefits physiological/ecological costs torpor, prediction relative importance spring energy reserves...
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 the hibernation patterns of little brown bats (Myotis lucifugus) using temperature-sensitive radio-transmitters. First, we aimed to test hypothesis that age, sex body condition affect expression torpor during hibernation. Second, skin temperature assess whether qualitative...
Mammalian hibernation consists of energy-saving torpor bouts (periods controlled reduction in body temperature [Tb]) interspersed with brief arousals to normothermic Tb. Frequency and duration can affect winter survival are thought be influenced by an optimization balancing the energetic benefits prolonged against physiological ecological costs (e.g., accumulation metabolic wastes). Female little brown bats (Myotis lucifugus) spend their fat reserves more slowly than males during winter,...
Bats and birds must balance time energy budgets during migration. Migrating bats face similar physiological challenges to birds, but nocturnality creates special for bats, such as a conflict between travelling refueling, which many avoid by feeding in daylight flying at night. As endothermic animals, alike expend substantial amounts of maintain high body temperatures. For migratory refueling stopovers, remaining euthermic inactive periods reduces the net refuelling rate, thereby prolonging...
Researchers often use simple body condition indices (BCI) to estimate the relative size of fat stores in bats. Animals determined be better are assumed more successful and have higher fitness. The most common BCI used bat research ratio index (body mass divided by forearm length) or residual (residuals mass-forearm length regression) size-corrected mass. We data from previous ongoing studies where composition (fat wet lean mass) was measured quantitative magnetic resonance test basic...
Abstract Emerging infectious diseases in wildlife can threaten vulnerable host populations. Actions targeting habitat improvements to aid population resilience and recovery may be beneficial long‐term strategies, yet testing the efficacy of such strategies before major conservation investments are made challenging. The disease white‐nose syndrome (WNS) has caused severe declines several species North American hibernating bats. We tested a novel approach targeted at improving foraging...
Although the phenology of bat migration has been investigated at population level, timing and energy management individual bats is poorly understood. Early arrival on summering grounds with ample stores may give a fitness advantage to females preparing raise pups. In contrast, there no such gain for males because they invest in mating during autumn. We use 3 years capture data investigate sex differences spring passage date body composition Lasionycteris noctivagans. predicted that would...
Migrating animals must acquire sufficient fuel to sustain migratory movement, but how time is allocated achieve this can vary greatly. The strategies used by migrating bats are not well understood and have been investigated during the spring when insectivorous face low food abundance. silver-haired (Lasionycteris noctivagans (Le Conte, 1831)) were captured at a stopover site in Long Point, Ontario, Canada, April May of 2012–2014. We followed movements 40 outfitted with radio transmitters...
Abstract Considerable advances and breakthroughs in wildlife tracking technology have occurred recent years, allowing researchers to gain insights into the movements behaviours of a broad range animals. Considering accessibility increase use devices studies, it is important better understand effects on these Our endeavour revisits guideline established 1988, which proposes that bats may encounter body condition or health problems alter their behaviour when carrying tags weighing more than 5%...
Abstract The persistence of the notochord into skeletally mature life stage is characteristic gekkotans, but otherwise rare occurrence among amniotes. taxonomic diversity Gekkota affords opportunity to investigate structure and development this phylogenetically ancestral component skeleton, determine its basic characteristics. gekkotan spans almost entire postcranial long axis characterized by a moniliform morphology with regularly alternating zones chordoid chondroid tissue. Chordoid tissue...
Abstract Millions of bats are killed at wind energy facilities worldwide, yet the behavioural mechanisms underlying why vulnerable to turbines remain unclear. Anthropogenic stimuli that alter perceptions environment, known as sensory pollution, could create ecological traps and cause bat mortality farms. We review abilities evaluate potential associated with farms examine role spatial scale on perceptual pollutants facilities. Audition, vision, somatosensation olfaction modalities use...