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Spatial And Temporal Activity Of Migratory Bats At Landscape Features, Rachel M. Hamilton
Spatial And Temporal Activity Of Migratory Bats At Landscape Features, Rachel M. Hamilton
Electronic Thesis and Dissertation Repository
Geographical landmarks may be important features for navigation of migrating bats although spatial and temporal activity may depend on species-specific migration strategies. I predicted that latitudinal migrating bats would have higher activity along north-south oriented linear landscape features, especially during late-seasonal migration periods, compared to bat species that migrate within a regional area. I acoustically sampled four species of bats classified as latitudinal and regional migrants. I monitored twelve sites located in southwestern Ontario at four landscape features between May and October 2011. I found that specific landscape features may have greater importance to specific species rather than their migration …
Bats And The Landscape: The Influence Of Edge Effects And Forest Cover On Bat Activity, Meredith K. Jantzen
Bats And The Landscape: The Influence Of Edge Effects And Forest Cover On Bat Activity, Meredith K. Jantzen
Electronic Thesis and Dissertation Repository
The habitats in which bat species may most effectively forage are often determined by species-specific differences in wing morphology and echolocation call structure. Habitat edges are important for bat navigation and foraging, but no study to date has examined the depth of edge influence (DEI--the extent of quantifiable change in activity with distance from an edge) for bats. I predicted that DEI would vary with species-specific differences in wing structure and echolocation call characteristics. Additionally, because different habitats may be required to fulfill species’ foraging and roost requirements, I predicted that bat activity would be highest in areas with a …