Master of Science (MS)
First Advisor's Name
Jennifer S. Rehage
First Advisor's Committee Title
Second Advisor's Name
Joseph J. Parkos III
Third Advisor's Name
Fourth Advisor's Name
Joel T. Heinen
fish community structure, Everglades, canals, connectivity, non-native species, novel environmental gradients
Date of Defense
Novel ecosystems emerge from alterations to historic abiotic regimes and contain new species combinations. Everglades canals offer an opportunity to understand the function of novel habitat for native and non-native fishes and how novel conditions in turn influence distribution, abundance and assembly patterns. I examined native and non-native fish assemblages collected across a gradient in novelty, defined by the loss of wetland connectivity and habitat complexity. As novelty increased, native species richness and abundance strongly declined, and the contribution of non-natives increased. Community structure vastly differed among canals and was strongly influenced by spatial factors and secondarily by hydrological factors. Natives and non-natives had opposing responses to key hydrologic and habitat parameters. This study represents the first comprehensive assessment of Everglades canal fishes, providing insight into the factors influencing native and non-native abundance and assembly patterns and contributing to our understanding of this novel but permanent habitat.
Gandy, David A., "Examining Gradients in Novelty: Native and Non-native Fish Assemblages in Everglades Canals" (2013). FIU Electronic Theses and Dissertations. 951.
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).