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Full-Text Articles in Biology

Scaling Of Feeding Performance In Panther Grouper, Cromileptes Altivelis, Candace R. Read May 2010

Scaling Of Feeding Performance In Panther Grouper, Cromileptes Altivelis, Candace R. Read

Mahurin Honors College Capstone Experience/Thesis Projects

Fishes demonstrate the greatest change throughout ontogeny in body size of all vertebrates, some becoming twelve times their original length. Panther groupers, Cromileptes altivelis, are no exception. This vast size change influences other aspects of their lives including their feeding behavior, the prey they consume, and the capabilities of the mechanisms they use to capture prey. The change in the feeding performance of the panther grouper, Cromileptes altivelis, was quantified through buccal pressure recordings and high-speed videography. From this data, we can deduce that the larger juvenile was able to generate greater negative pressure within the mouth. It appears that …


Energetic Basis Of Colonial Living In Social Insects, Chen Hou, Michael Kaspari, Hannah B. Vander Zanden, James F. Gillooly Feb 2010

Energetic Basis Of Colonial Living In Social Insects, Chen Hou, Michael Kaspari, Hannah B. Vander Zanden, James F. Gillooly

Biological Sciences Faculty Research & Creative Works

Understanding the ecology and evolution of insect societies requires greater knowledge of how sociality affects the performance of whole colonies. Metabolic scaling theory, based largely on the body mass scaling of metabolic rate, has successfully predicted many aspects of the physiology and life history of individual (or unitary) organisms. Here we show, using a diverse set of social insect species, that this same theory predicts the size dependence of basic features of the physiology (i.e., metabolic rate, reproductive allocation) and life history (i.e., survival, growth, and reproduction) of whole colonies. The similarity in the size dependence of these features in …


Integrating Spatial And Temporal Approaches To Understanding Species Richness, Ethan P. White, S. K. Morgan Ernest, Peter B. Adler, Allen H. Hurlbert, S. Kathleen Lyons Jan 2010

Integrating Spatial And Temporal Approaches To Understanding Species Richness, Ethan P. White, S. K. Morgan Ernest, Peter B. Adler, Allen H. Hurlbert, S. Kathleen Lyons

School of Biological Sciences: Faculty Publications

Understanding species richness patterns represents one of the most fundamental problems in ecology. Most research in this area has focused on spatial gradients of species richness, with a smaller area of emphasis dedicated to understanding the temporal dynamics of richness. However, few attempts have been made to understand the linkages between the spatial and temporal patterns related to richness. Here, we argue that spatial and temporal richness patterns and the processes that drive them are inherently linked, and that our understanding of richness will be substantially improved by considering them simultaneously. The species–time–area relationship provides a case in point: successful …