Foraging Time and Vigilance in Rock Hyrax (Procavia capensis), a Social Forager
MetadataShow full item record
Numerous factors affect the foraging ecology of animals, of which group size and foraging habitat have been the most extensively researched. Our study, conducted in Tsavo West National Park, Kenya, examined how different factors alter the foraging behavior of rock hyraxes, Procavia capensis. The main factors investigated were group size, distance from nearest shelter, vegetation cover, and period of the day (morning, midday, afternoon). Our data were collected by observing a hyrax for at least two minutes and tape recording all of the actions performed within that time span, primarily foraging, vigilance, and watching (handling food while scanning for predators). The tapes were later replayed and timed, thereby providing the data needed to calculate the percent time allocated to each activity and the average length of each activity (bout). Of all the variables, we found that group size exhibited the most significant relationships, correlating positively with percent time foraging and negatively with percent time vigilant and watching. Distance from nearest shelter and vegetation cover also had significant relationships with foraging behavior and watching behavior, although not vigilance behavior. Other variables that were recorded (foraging patch, date of observation, size of hyrax, and time of day) were negligible in their correlations, although they did reveal some interesting trends discussed in the paper.
Showing items related by title, author, creator and subject.
A Complex Foraging Polymorphism in a Multi-niched Habitat as Demonstrated by Differences in Foraging Efficiencies in Lepomis Macrochirus (The Bluegill Sunfish) Judy, Kathleen (Kalamazoo College, 1987)The Bluegill Sunfish, Leoomts macrochlrus, is capable of exploiting. two distinct niches within one lake, the openwater, or limnetic, and the vegetation, or llttoral. The demands of these two environments in terms of ...
Moon, Miranda J. (Kalamazoo College, 1998)Polybia occidentalis has proven to be an excellent wasp species to work with in developing a deeper understanding of sociality. A good example of emergent behavior in wasps is nest construction, and today much is known ...
Bat Foraging in Tamarisk and Willow: A Survey of Species Richness along the Lower Owens River in California Beverwyk, Jessica (Kalamazoo College, 2004)Invasion by tamarisk (Tamarix spp.) has contributed to a host of problems along riparian systems in the American southwest. This non-native invasive plant originally from Eurasia has been implicated with increased ...