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Full-Text Articles in Physical Sciences and Mathematics
Repellents: Integrating Sensory Modalities, Michael L. Avery
Repellents: Integrating Sensory Modalities, Michael L. Avery
National Wildlife Research Center Repellents Conference 1995
Recommendations for managing wildlife damage situations often involve application of multiple methods or techniques. The basis for such recommendations is unclear as there is little evidence that such combinations of methods work more effectively than the individual methods alone. In order to improve beyond hit or miss repellent applications, we should adopt principles exhibited in nature and develop repellent treatments based on the design of signals used in animal communications. In particular, characteristics that increase detectability, discriminability, and memorability should be identified and incorporated into repellent design. To do so, the sensory capabilities of the target species need to be …
Norway Rats' Communication About Foods And Feeding Sites, Bennett G. Galef Jr.
Norway Rats' Communication About Foods And Feeding Sites, Bennett G. Galef Jr.
National Wildlife Research Center Repellents Conference 1995
After interacting with a recently fed "demonstrator" rat (Rattus norvegicus), a naive "observer" rat exhibits substantial enhancement of its preference for whatever food its demonstrator ate. Such social effects on food preference in rats are surprisingly robust and able to reverse both congenital flavor preferences and poison-induced, learned flavor aversions. Analysis of the pheromonal signals emitted by demonstrator rats that alter the food preferences of their observers indicates that experience of CS2 (a substance present in rat breath) together with the odor of a food is sufficient to enhance an observer rat's subsequent preference for the food. …