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Can Diet Affect Coloration In Tiger Salamanders?, Katherine Novak Apr 2018

Can Diet Affect Coloration In Tiger Salamanders?, Katherine Novak

Undergraduate Research Symposium 2018

Amphibians are the fastest known declining taxonomic group in the world with 48% of populations in decline (Stuart et. al. 2004). These declines in amphibian populations are partially due to the lack of basic life history data (Semlitsch 2003). For example, amphibians are known for their bright coloration and ability to rapidly change color. Coloration is key to amphibian survival in terms of defense (as camouflage or a warning sign to predators), thermoregulation (darker skin warms faster), and communication (primarily mating displays) (Rudh and Qvanstrom 2013). One aspect of amphibian coloration that is poorly understood is how much the environment …


Tracking Movements Of Ambystoma Tigrinum Using Radio Telemetry, Heather L. Waye, Kirsten T. Sharpe Apr 2014

Tracking Movements Of Ambystoma Tigrinum Using Radio Telemetry, Heather L. Waye, Kirsten T. Sharpe

Undergraduate Research Symposium 2014

The eastern tiger salamander (Ambystoma tigrinum) is a widely distributed amphibian ranging from Northern Minnesota, down to Florida, and over to the east coast of the United States (Oldfield and Moriarty, 1994). As populations within the species are diverse and seldom studies have been done in the area of radio telemetry in tiger salamanders, there is a need for information in this field. This project was the first of its kind to be implemented in Minnesota.

In an effort to more fully understand the ecology of this species, this research attempts to provide vital information that will allow a better …