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Ant Community Dynamics And The Effects Of Global Warming, Katharine Lisa Stuble
Ant Community Dynamics And The Effects Of Global Warming, Katharine Lisa Stuble
Doctoral Dissertations
This dissertation seeks to provide an understanding of how species coexist and, further, how climate change may alter communities by acting on the mechanisms that promote coexistence. Specifically, I examined coexistence among ant species in eastern deciduous forests and the effects that warming may have on foraging activity. Through a series of field observations, I sought evidence for the importance of four of the most commonly cited mechanisms for coexistence among ant species: the dominance – discovery tradeoff, the dominance – thermal tolerance tradeoff, spatial segregation, and niche partitioning. In this system, I did not find evidence for any of …
Phylogenetic Analysis Of The Nearctic Blepharicera Macquart (Diptera: Blephariceridae) With An Emphasis On The Eastern Blepharicera Tenuipes Group Hogue, Amanda Jane Jacobson
Phylogenetic Analysis Of The Nearctic Blepharicera Macquart (Diptera: Blephariceridae) With An Emphasis On The Eastern Blepharicera Tenuipes Group Hogue, Amanda Jane Jacobson
Doctoral Dissertations
The eastern Nearctic fauna of Blepharicera Macquart (Diptera: Blephariceridae) is revised to include twenty-three species, six of which are new to science. Descriptions of the larvae, pupae, and adults of B. amnicula n. sp., B. conifera n. sp., B. crista n. sp., B. enoristera n. sp., B. hillabee n. sp., and B. opistera n. sp. are presented. Keys to instar IV larvae, pupae, and adults of all eastern Blepharicera (except B. caudata Courtney) are provided. Phylogenetic studies were conducted to determine the relationships between eastern and western Nearctic Blepharicera and among species within these groups. Larvae, pupae, and adults were …
Some Environmental Features Of Hallett Station, Antarctica, With Special Reference To Soil Arthropods, Madison E. Pryor
Some Environmental Features Of Hallett Station, Antarctica, With Special Reference To Soil Arthropods, Madison E. Pryor
Doctoral Dissertations
Introduction: Since Cook's voyage of 1772-1775, numerous expeditions, nationally and independently supported, have explored coastal and inland areas of Antarctica. The primary purpose of most early scientific expeditions was directed toward a study of the physical nature of the continent. In most instances, biologists were not included as expedition personnel and a large portion of the information concerning the flora and fauna of the continent has been contributed by investigators trained in a variety of scientific disciplines. A very few systematic investigations of land flora and soil fauna have been made. In spite of the obvious inadequacy of such investigations, …