Relative prey abundance and predator preference predict individual diet variation in prey‐switching experiments

Ecology ◽  
2019 ◽  
Vol 101 (1) ◽  
Author(s):  
Kyle E. Coblentz
Keyword(s):  
Prey Abundance ◽  
Prey Switching ◽  
Diet Variation ◽  
Predator Preference

scholarly journals Prey Switching of Sympatric Canids in Response to Variable Prey Abundance

2009 ◽  
Vol 90 (3) ◽  
pp. 594-603 ◽  
Author(s):  
Lynda A. Randa ◽  
Douglass M. Cooper ◽  
Peter L. Meserve ◽  
John A. Yunger
Keyword(s):  
Prey Abundance ◽  
Prey Switching

Functional feeding responses of coyotes, Canis latrans, to fluctuating prey abundance in the Curlew Valley, Utah, 1977–1993

2005 ◽  
Vol 83 (4) ◽  
pp. 569-578 ◽  
Author(s):  
Rebecca A Bartel ◽  
Frederick F Knowlton
Keyword(s):  
Canis Latrans ◽  
Information Criterion ◽  
Small Sample ◽  
Prey Consumption ◽  
Prey Abundance ◽  
Feeding Response ◽  
Prey Switching ◽  
Consumption Rates ◽  
Lepus Californicus ◽  
Small Sample Sizes

We investigated interactions between coyotes (Canis latrans Say, 1823) and prey in the Curlew Valley, Utah, by comparing prey abundances with prey consumption rates. Previous studies reported a cyclic trend in black-tailed jackrabbit (Lepus californicus Gray, 1837) density with a period of 10 years and >150-fold amplitude, as well as short-term fluctuations among some rodent species that exceeded an 8-fold difference in amplitude over 2 years. Our results suggest changes in coyote diets mainly reflect the fluctuations in jackrabbit abundance. Prey switching to rodents during periods of low jackrabbit abundance also was evident. We used the initial feeding pattern analysis to compare prey consumption rates to prey abundance. Coyotes demonstrated a type II (hyperbolic) functional feeding response to changes in jackrabbit abundance. Functional feeding responses to rodent abundances were more difficult to assess because of the strong influence of jackrabbits. In most comparisons, we visually detected a linear functional feeding response to varying rodent abundances; yet this was not statistically supported by Akaike's Information Criterion corrected for small sample sizes (AICc) to assess different models.

scholarly journals Among‐individual diet variation within a lake trout ecotype: Lack of stability of niche use

2021 ◽  
Vol 11 (3) ◽  
pp. 1457-1475
Author(s):  
Louise Chavarie ◽  
Kimberly L. Howland ◽  
Les N. Harris ◽  
Colin P. Gallagher ◽  
Michael J. Hansen ◽  
...  
Keyword(s):  
Lake Trout ◽  
Diet Variation

Does prey abundance affect prey size selection by the Eagle Owl (Bubo bubo)?

2021 ◽  
Author(s):  
Jorge Tobajas ◽  
Carlos Rouco ◽  
Javier Fernandez-de-Simon ◽  
Francisco Díaz-Ruiz ◽  
Francisca Castro ◽  
...  
Keyword(s):  
Prey Size ◽  
Prey Abundance ◽  
Bubo Bubo ◽  
Size Selection ◽  
Eagle Owl

The response of lions (Panthera leo) to changes in prey abundance on an enclosed reserve in South Africa

2012 ◽  
Vol 57 (3) ◽  
pp. 225-231 ◽  
Author(s):  
Charlene Bissett ◽  
Ric T. F. Bernard ◽  
Daniel M. Parker
Keyword(s):  
South Africa ◽  
Prey Abundance ◽  
Panthera Leo

scholarly journals Tigers and their prey: Predicting carnivore densities from prey abundance

2004 ◽  
Vol 101 (14) ◽  
pp. 4854-4858 ◽  
Author(s):  
K. U. Karanth ◽  
J. D. Nichols ◽  
N. S. Kumar ◽  
W. A. Link ◽  
J. E. Hines
Keyword(s):  
Prey Abundance

The geography of diet variation in Neotropical Carnivora

Mammal Review ◽  
2021 ◽  
Author(s):  
Lívia R. Cruz ◽  
Renata L. Muylaert ◽  
Mauro Galetti ◽  
Mathias M. Pires
Keyword(s):  
Diet Variation

Prey Switching: A Case Study from New Guinea

10.2307/3982 ◽  
1982 ◽  
Vol 51 (2) ◽  
pp. 529 ◽  
Author(s):  
Peter D. Dwyer
Keyword(s):  
New Guinea ◽  
Prey Switching
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