Date of Award
5-3-2013
Document Type
Thesis
Degree Name
Biology, MS
First Advisor
Thomas Risch
Committee Members
Cheryl Dykstra; Richard Grippo; Virginie Rolland
Abstract
I used video monitoring to quantify egg-laying intervals, partial incubation, hatching asynchrony, feeding rates, sibling aggression, and causes of mortality or nest failure in a suburban population of Red-shouldered Hawks (Buteo lineatus). The egg-laying interval and parents' partial incubation behavior during egg-laying resulted in a significant correlation between the sum of incubation time during egg-laying and the hatching span (r2 = 0.83, p <0.0001). Hatch rank was the most significant predictor for both the amount of food consumed and the number of aggressive acts displayed by a nestling. First-hatched senior nestlings received significantly more food and were significantly more aggressive than junior nestlings. Broods of three displayed significantly more aggression than broods of two, and aggression decreased significantly from week two to three. There was no significant relationship between the total amount of food consumed and the total amount of aggression in each nest, which rejects the food amount hypothesis.
Rights Management
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Miller, Sara Johnson, "Partial Incubation, Hatching Asynchrony, and Sibling Aggression in the Red-shouldered Hawk (Buteo lineatus)" (2013). Student Theses and Dissertations. 800.
https://arch.astate.edu/all-etd/800
