Open Access. Powered by Scholars. Published by Universities.®
- Institution
Articles 1 - 3 of 3
Full-Text Articles in Life Sciences
The Roles Of Inter- And Intra-Sexual Selection In Behavioral Isolation Between Native And Invasive Pupfishes, Cory Becher, Jennifer M. Gumm
The Roles Of Inter- And Intra-Sexual Selection In Behavioral Isolation Between Native And Invasive Pupfishes, Cory Becher, Jennifer M. Gumm
Faculty Publications
Male-male competition and female mate choice may both play important roles in driving and maintaining reproductive isolation between species. When previously allopatric species come into secondary contact with each other due to introductions, they provide an opportunity to evaluate the identity and strength of reproductive isolating mechanisms. If reproductive isolation is not maintained, hybridization may occur. We examined how reproductive isolating mechanisms mediate hybridization between endemic populations of the Red River pupfish Cyprinodon rubrofluviatilis and the recently introduced sheepshead minnow C. variegatus. In lab-based dominance trials, males of both species won the same number of competitions. However, male C. rubrofluviatilis …
Survival, Growth And Reproduction Of Non-Native Nile Tilapia Ii: Fundamental Niche Projections And Invasion Potential In The Northern Gulf Of Mexico, Michael R. Lowe, Wei Wu, Mark S. Peterson, Nancy J. Brown-Peterson, William T. Slack, Pamela J. Schofield
Survival, Growth And Reproduction Of Non-Native Nile Tilapia Ii: Fundamental Niche Projections And Invasion Potential In The Northern Gulf Of Mexico, Michael R. Lowe, Wei Wu, Mark S. Peterson, Nancy J. Brown-Peterson, William T. Slack, Pamela J. Schofield
Faculty Publications
Understanding the fundamental niche of invasive species facilitates our ability to predict both dispersal patterns and invasion success and therefore provides the basis for better-informed conservation and management policies. Here we focus on Nile tilapia (Oreochromis niloticus Linnaeus, 1758), one of the most widely cultured fish worldwide and a species that has escaped local aquaculture facilities to become established in a coastal-draining river in Mississippi (northern Gulf of Mexico). Using empirical physiological data, logistic regression models were developed to predict the probabilities of Nile tilapia survival, growth, and reproduction at different combinations of temperature (14 and 30°C) and salinity …
Biological Invasions And Biocultural Diversity: Linking Ecological And Cultural Systems, Jeanine Pfeiffer, Robert Voeks
Biological Invasions And Biocultural Diversity: Linking Ecological And Cultural Systems, Jeanine Pfeiffer, Robert Voeks
Faculty Publications
Study of the ecological and economic effects of invasive species has paralleled their progressively pervasive influence worldwide, yet their cultural impacts remain largely unexamined and therefore unrecognized. Unlike biological systems, where the ecological consequences of biological invasions are primarily negative, from an ethnoscientific standpoint, invasive species' impacts on cultural systems span a range of effects. Biological invasions affect cultural groups in myriad, often unpredictable and at times contradictory ways. This review groups case studies into a conceptual matrix suggesting three categorically different cultural impacts of invasive species. Culturally impoverishing invasive species precipitate the loss or replacement of culturally important native …