Now showing items 11-20 of 255
Correlates of alternative migratory strategies in western bluebirds
Partial migration occurs when only some animals in a population migrate. While evidence suggests that migratory strategies are partially controlled by genes, individual and environmental conditions which alter the cost-benefit ...
Rapid cold hardening and octopamine modulate chill tolerance in Locusta migratoria
Temperature has profound effects on the neural function and behaviour of insects. When exposed to low temperature, chill-susceptible insects enter chill coma, a reversible state of neuromuscular paralysis. Despite the ...
EDTP/MTMR14: A novel target for improved survivorship to prolonged anoxia and cellular protein aggregates
Drosophila egg-derived tyrosine phosphatase (EDTP), a lipid phosphatase that removes 3-position phosphate at the inositol ring, has dual functions in oogenesis and muscle performance in adults. A mammalian homologous gene ...
Breeding eider ducks strongly influence subarctic coastal pond chemistry
Arctic freshwater ponds are typically pristine and oligotrophic, however, seabird biovectors can markedly alter 29 water quality via enrichment with marine-derived nutrients and bioaccumulated metals. These ornithogenic ...
Will empathy save us?
Recent prescriptions for rescuing civilization from collapse involve extending our human capacity for empathy to a global scale. This is a worthy goal, but several indications leave grounds for cautious optimism at best. ...
Mercury biotransport via migratory birds and food web biomagnification influenced by geospatial patterns
Intrinsic physico-chemical characteristics, trophic transfer and preexisting mercury (Hg) in aquatic ecosystems are ultimate drivers influencing accumulation and mercury concentrations ([Hg]) in organisms in a food web. ...
High-Latitude Responses of Diatom and Chironomid Assemblages to Regional Climate Changes and Other Environmental Stressors
High-latitude freshwater ecosystems are amongst the most vulnerable to climate change impacts. However, the response to warming is rarely straightforward and may be modulated by local or regional factors, producing variability ...
Genetic Evidence for Differential Activities of Goa Isoforms in Drosophila Melanogaster
Mental illness is prevalent in our population and has been studied for decades but is still poorly understood. Understanding the genetic and biological mechanisms underlying these disorders can lead to significant improvements ...
From Genes to Genomes: Local Adaptation and Adaptive Potential in Two Arctic Seabirds
By investigating the mechanisms underlying the evolution and the maintenance of local adaptations we can help predict how species will adapt to future environmental change. In this thesis I investigate local adaptation and ...