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Full-Text Articles in Biology
Current Status Of American Bullfrog, Lithobates Catesbeianus, Invasion In Uruguay And Exploration Of Chytrid Infection, Gabriel Laufer, Noelia Gobel, Claudio Borteiro, Alvaro Soutullo, Claudio Martinez-Debat, Rafael O. De Sá
Current Status Of American Bullfrog, Lithobates Catesbeianus, Invasion In Uruguay And Exploration Of Chytrid Infection, Gabriel Laufer, Noelia Gobel, Claudio Borteiro, Alvaro Soutullo, Claudio Martinez-Debat, Rafael O. De Sá
Biology Faculty Publications
The American bullfrog Lithobates catesbeianus is an invasive species that can strongly affect native amphibian communities through competition, predation, or introduction of diseases. This frog has invaded multiple areas in South America, for which niche models predict suitable environments across much of the continent. This paper reveals the state of the invasion of this species in Uruguay and its possible relationship with the chytrid pathogenic fungus, Batrachochytrium dendrobatidis. Surveys at invaded sites were conducted from 2007 to 2015, identified two populations undergoing recent range expansion (one of them exponential), two populations that failed to establish, and a new record …
The Effect Of Beaver Dams On Macroinvertebrate Communities, Anna Shampain
The Effect Of Beaver Dams On Macroinvertebrate Communities, Anna Shampain
Summer Research
Impacts of habitat alterations caused by beaver presence on the composition and disturbance tolerance of local macroinvertebrate communities were studied. Beavers act as ecosystem engineers by altering water flow, temperature, nutrient, organic carbon and groundwater storage, and by increasing the overall geomorphic complexity of river systems through dam construction. Macroinvertebrates are widespread across freshwater habitats, they act as primary processers of organic materials serve as a food source for various freshwater species. Samples of macroinvertebrate communities were collected in the streams within the Methow River Watershed in North-Central Washington. Streams with known beaver presence (n= 4) and without beaver activity …