Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Belant, Jerrold L.

Committee Member

Leopold, Bruce D.

Committee Member

Beyer Jr., Dean E.

Committee Member

Wang, Guiming

Date of Degree

1-1-2013

Document Type

Graduate Thesis - Open Access

Abstract

Long-distance vocalizations by canids play an important role in communication among individuals. I evaluated efficacy of broadcasted coyote (Canis latrans) group-yip calls and gray wolf (C. lupus) lone howls to elicit vocal responses from 18 GPS-collared coyotes on 144 occasions. I concluded that eliciting coyote vocalizations where wolves are present will not bias responses, and recommend eliciting coyote vocalizations using recorded coyote group-yip howls during July–September to estimate species’ presence or density. From foraging theory, generalist predators should increase consumption of prey if prey availability increases. I estimated densities for coyotes, adult deer, and fawns, and collected coyote scat to estimate occurrence and biomass of adult and fawn deer consumed by coyotes during 2 periods. I suggest that consumption rates of coyotes was associated positively with increases in fawn density, and fawn consumption by coyotes follows predictions of foraging theory during this pulsed resource event.

URI

https://hdl.handle.net/11668/19807

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