Interference Competition Between Coyotes ( Canis Latrans ) And Raccoons

1245 Words Sep 18th, 2016 5 Pages
Nicholas Chancey
Cellular Processes, University of South Florida, 140 7th Ave S, St. Petersburg, FL 33701
Submitted September 20, 2016
Behavioral Ecology (2007) 18 (1): 204-214. doi: 10.1093/beheco/arl075
First published online: November 28, 2006

Interference Competition Between Coyotes (Canis latrans) and Raccoons (Procyon lotor): a Test of the Mesopredator Release Hypothesis Observations: The authors, Stanley D. Gehrt and Suzanne Prange noted that raccoon (Procyon lotor) populations were growing in areas where there was a lack of a dominant carnivore. Coyotes (Canis latrans) play a role as a top predator by controlling smaller to medium sized mammals that share the same home range (where an animal regularly travels for food) as they do. Ghent and Prange believed there was a hierarchy of predators based on size, particularly amongst the coyote and raccoon populations at the Max McGraw Wildlife Foundation located in Kane Country, Illinois. This hierarchy was based on the mesopredator release hypothesis which states that the when the population of large carnivores decreases in one area, the mesopredators (middle trophic level predator) populations increase in the same area.
Objectives:
To gather more data regarding the mesopredator release hypothesis between canid (coyote) and noncanid (raccoon) predators.

To determine whether smaller species strictly avoid areas where larger predatory species are present.
How carnivore species interact can have important implications…

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