248 pages, illus
By presenting an abundance of scientific evidence on olfaction and olfactory concealment theory throughout the text, "Predator-Prey Dynamics" reshapes the way that scientists view animal behavior. Olfaction is an effective method to locate prey because animals constantly release a stream of odorants, but this theory suggests that high wind speeds, updrafts, and turbulence (all predictable in time and space) can reduce the ability of olfactory predators to locate prey. Using published literature to test predictions, this book will help biologists and wildlife professionals to manage olfactory predators and their prey.
The book is logically organized to describe the mechanics of olfaction and the physics of airflow before discussing species of predators and prey and their ecology. This may sound like dry reading at the outset. but Conover employs animal attributes or behaviors to keep the reader along for the ride. -- Timothy D. Smith, Slippery Rock University, in Journal of Mammalogy, 2008 "Predator-prey dynamics covers a subject that has not received enough attention by animal behavior and ecology researchers. ...Conover's book has laid the foundation for future research on olfactory predators and their prey." -- Barbara Clucas, University of California-Davis, writing in Ecology, 2007
Olfactory Predators and OdorantsOlfactory organs of vertebratesComparing the olfactory ability of humans to other mammalsUse of olfaction by birds to locate foodWhich modality is most important to snakes in locating prey?Which modality is most important to predatory mammals in locating prey?Characteristics of odorantsPerception of odor mixturesSources of odorants from mammals and birdsUsing odors to detect differences between species or individualsCan animals hide from olfactory predators by changing their odor?Can animals hide from olfactory predators by masking their odor with another, overpowering one?Factors influencing the evaporation rate of odorantsMovement of odorants through the atmosphereThe olfactory concealment theoryDetecting and Locating Prey Through Depositional Odor TrailsCreation of depositional odor trailsDetermining how long ago a trail was createdDetermining the direction of an odor trailImpact of environmental conditions on depositional odor trailsHow good are predators at following a depositional odor trail?Behavioral tactics used by deer and hares to escape from tracking dogsLocating home ranges using olfactory cuesWhat prey can do to minimize their risk from depositional odor trailsWhat olfactory predators can do to maximize the usefulness of depositional odor trailsUsing Airborne Odorants to Detect the Presence of PreyThe challenge of using airborne odorants to detect the presence of preyImpact of a steady wind on a predator's ability to detect an odor plumeHow far can predators detect prey by sensing the quarry through its odor plume?Can prey reduce their odorant emission rate?Impact of wind velocity on odorant concentrationImpact of turbulence on odorant concentrationDifferences in time-averaged and instantaneous views of odor plumesImpact of lateral and vertical turbulence on the size of instantaneous odor plumesMeasurements of turbulenceSpatial and temporal structure of odor plumesEffect of atmospheric instability on the vertical dispersion of odorantsDiurnal changes in atmospheric stabilityImpact of atmospheric instability on olfactory predators and their preyUsing Odor Plumes to Locate Prey and the Impact of ConvectionLocating prey through airborne odorantsPotential methods animals can use to locate an odor sourceHow moths locate sources of odor plumesHow tsetse flies use odor plumes to find their hostsDo predators develop olfactory search images of their prey?Impact of wind velocity on the ability of predators to locate prey using odor plumesImpact of wind velocity of olfactory predators and their preyEffect of variable wind speed and direction on use of odor plumes to locate preyConvective turbulence caused by local topographyImpact of local convective currents on olfactory predators and their preyExperimental Evidence that Updrafts and Turbulence Hinder the Ability of Predato
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Utah State University, Wildlife Resources Department, Logan,