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Ecology and Evolutionary Biology Commons™
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- Acclimatization (1)
- Activity levels (1)
- Animals (1)
- Bat detectors (1)
- Bats (1)
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- Cold Temperature (1)
- Cold-Shock Response (1)
- Echolocation (1)
- Ecomorphology (1)
- Food resource partitioning (1)
- Insect cold tolerance (1)
- Introduced Species (1)
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- Nectarivory (1)
- Niveaphasma annulata (1)
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- Phasmatodea (1)
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Articles 1 - 4 of 4
Full-Text Articles in Ecology and Evolutionary Biology
The Role Of Morphology In Diet And Flower Visitation By Five Species Of Cuban Flower-Visiting Bats, Lindsey Clairmont
The Role Of Morphology In Diet And Flower Visitation By Five Species Of Cuban Flower-Visiting Bats, Lindsey Clairmont
Electronic Thesis and Dissertation Repository
Pollinator and flower morphology are important factors in structuring the plant-pollinator relationship. A pollinator’s morphology may influence aspects of its diet. Flower-visiting bats are an important pollinator group but very little is known about what influences their interactions with food plants. I examined the role of morphology in the partitioning of food resources for five species of flower-visiting Cuban bats. I analyzed cranial traits and body size to examine differences among species and to determine the degree of morphological specialization for flower-feeding for each species. I also collected dietary data from guano and used acoustic monitoring to assess bat activity …
Cold Tolerance Of The Eastern Subterranean Termite, Reticulitermes Flavipes (Isoptera: Rhinotermitidae), In Ontario., Matthew W. Clarke, Graham J. Thompson, Brent J Sinclair
Cold Tolerance Of The Eastern Subterranean Termite, Reticulitermes Flavipes (Isoptera: Rhinotermitidae), In Ontario., Matthew W. Clarke, Graham J. Thompson, Brent J Sinclair
Biology Publications
We characterized the cold tolerance of natural populations of the Eastern subterranean termite (Reticulitermes flavipes (Kollar) [Isoptera, Rhinotermitidae]) in southwestern Ontario, Canada. We measured cold tolerance in workers from six colonies of termites established from Pelee Island in Lake Erie, and Point Pelee National Park. The mean critical thermal minimum, at which termites entered chill coma, ranged from 8.1 to 5.7°C. Mean supercooling points (SCP, the temperature at which individuals freeze) ranged from -4 to -4.6°C, and did not differ significantly between colonies, nor was SCP dependent on body size. Individuals survived brief exposure to low temperatures, as long as …
Assessing And Analyzing Bat Activity With Acoustic Monitoring: Challenges And Interpretations, Amanda M. Adams
Assessing And Analyzing Bat Activity With Acoustic Monitoring: Challenges And Interpretations, Amanda M. Adams
Electronic Thesis and Dissertation Repository
Acoustic monitoring is a powerful technique for learning about the ecology of bats, but understanding sources of variation in the data collected is important for unbiased interpretation. The objectives of this dissertation were to investigate sources of variation in acoustic monitoring and make recommendations for acoustic survey design and analysis. I addressed this goal in three ways: i) variation resulting from differences in bat detectors, ii) methods for objective identification of peak activity, and iii) the use of stationary transects to address within-site spatial variation.
First, I compared variation of detection of echolocation calls among commonly available bat detectors and …
Overwintering In New Zealand Stick Insects, Alice B. Dennis, Luke T. Dunning, Christopher J. Dennis, Brent J. Sinclair, Thomas R. Buckley
Overwintering In New Zealand Stick Insects, Alice B. Dennis, Luke T. Dunning, Christopher J. Dennis, Brent J. Sinclair, Thomas R. Buckley
Biology Publications
Stick insects are found in a variety of habitats throughout New Zealand, including at least four species that occur at high altitudes. Here they face physiological challenges that differ from their typically warmer lowland habitats, but their strategies to deal with harsh winter conditions are not known. Autumn and winter field surveys, coupled with caging experiments, were conducted to determine which life stages are overwintering in montane and lowland habitats. Data loggers were placed for approximately one year at each site to measure the leaf litter and canopy microhabitat temperatures. From this, we have found that alpine and lowland stick …