2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/23/2018 | 9:30 AM - 9:45 AM | INCREASED TEMPERATURE INFLUENCED GROWTH AND DEVELOPMENT OF LITHOBATES PIPIENS TADPOLES EXPOSED TO INVASIVE PLANT LEACHATES AND A TRICLOPYR HERBICIDE | 410 B
INCREASED TEMPERATURE INFLUENCED GROWTH AND DEVELOPMENT OF LITHOBATES PIPIENS TADPOLES EXPOSED TO INVASIVE PLANT LEACHATES AND A TRICLOPYR HERBICIDE
Multiple factors including habitat loss, pollutants, invasive species, and disease have contributed to the global decline of amphibians and continued declines can be expected as a result of climate change. Global warming temperatures may allow for range expansion of invasive plants, and because herbicides are the primary method to control invasive plants, chemical use may increase. A laboratory experiment was performed to examine the effects of two temperature regimes (20°C and 25°C) as well as individual and combined effects of European buckthorn (Rhamnus cathartica) leachates and a triclopyr herbicide (Renovate® 3), on the survival, growth and morphology of northern leopard frog (Lithobates pipiens) tadpoles. The presence of R. cathartica leachates resulted in increased tadpole growth (i.e., increased mass and length), although mostly in the higher temperature treatment (25°C). Further, tadpoles raised in the warmer temperature were smaller, but at a more developmentally advanced stage after eight weeks. The herbicide triclopyr appeared to have minimal effects on tadpole growth or survival at the concentration used in this experiment. These results encourage further examination of potential effects of global climate changes in combination with other environmental factors that may impact amphibian populations.
- Climate Change
- Ecotoxicology
- Invasive
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Presenters/Authors
Amanda Curtis
(), University of Illinois, Urbana-Champaign, amandac3@illinois.edu;
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M. Gabriela Bidart
(), Bowling Green State University, gbidart@bgsu.edu;
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