Journal
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
Volume -, Issue 170, Pages -Publisher
JOURNAL OF VISUALIZED EXPERIMENTS
DOI: 10.3791/61858
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Funding
- James Madison University (JMU) [15-7412-1155-CA, 16-7412-1269CA, 17-7412-1318-CA]
- USDA Animal and Plant Health Inspection Service [15-7412-1155-CA, 16-7412-1269CA, 17-7412-1318-CA]
- JMU [P18AC00760]
- National Park Service [P18AC00760]
- U.S. Geological Survey (USGS) Greater Everglades Priority Ecosystem Science Program, National Park Service [P18PG00352]
- USGS Invasive Species Program
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This article describes two Y-maze apparatuses tailored to different invasive reptile species, outlining their operation and cleaning procedures. Additionally, it summarizes the variety of data produced, experimental drawbacks and solutions, as well as suggested data analysis frameworks.
Reptiles utilize a variety of environmental cues to inform and drive animal behavior such as chemical scent trails produced by food or conspecifics. Decrypting the scenttrailing behavior of vertebrates, particularly invasive species, enables the discovery of cues that induce exploratory behavior and can aid in the development of valuable basic and applied biological tools. However, pinpointing behaviors dominantly driven by chemical cues versus other competing environmental cues can be challenging. Y-mazes are common tools used in animal behavior research that allow quantification of vertebrate chemosensory behavior across a range of taxa. By reducing external stimuli, Y-mazes remove confounding factors and present focal animals with a binary choice. In our Y-maze studies, a scenting animal is restricted to one arm of the maze to leave a scent trail and is removed once scent-laying parameters have been met. Then, depending on the trial type, either the focal animal is allowed into the maze, or a competing scent trail is created. The result is a record of the focal animal's choice and behavior while discriminating between the chemical cues presented. Here, two Y-maze apparatuses tailored to different invasive reptile species: Argentine black and white tegu lizards (Salvator merianae) and Burmese pythons (Python bivittatus) are described, outlining the operation and cleaning of these Y-mazes. Further, the variety of data produced, experimental drawbacks and solutions, and suggested data analysis frameworks have been summarized.
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