Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Life Sciences
Environmental Correlates Of Breeding In The Crested Caracara (Caracara Cheriway), Joan L. Morrison, Kyle E. Pias, Jonathan B. Cohen, Daniel H. Catlin
Environmental Correlates Of Breeding In The Crested Caracara (Caracara Cheriway), Joan L. Morrison, Kyle E. Pias, Jonathan B. Cohen, Daniel H. Catlin
Faculty Scholarship
We evaluated the influence of weather on reproduction of the Crested Caracara (Caracara cheriway) in an agricultural landscape in south-central Florida. We used a mixed logistic-regression modeling approach within an information-theoretic framework to examine the influence of total rainfall, rainfall frequency, and temperature on the number of breeding pairs, timing of breeding, nest success, and productivity of Crested Caracaras during 1994–2000. The best models indicated an influence of rainfall frequency and laying period on reproduction. More individuals nested and more pairs nested earlier during years with more frequent rainfall in late summer and early fall. Pairs that nested …
Environmental Correlates Of Nesting Success In Red-Shouldered Hawks, Joan L. Morrison, Michael Mcmillian, Jonathan B. Cohen, Daniel H. Catlin
Environmental Correlates Of Nesting Success In Red-Shouldered Hawks, Joan L. Morrison, Michael Mcmillian, Jonathan B. Cohen, Daniel H. Catlin
Faculty Scholarship
We evaluated the influence of weather on reproduction of the Red-shouldered Hawk (Buteo lineatus) in an agricultural landscape in south-central Florida where we found relatively high densities of successfully nesting hawks. We used a generalized linear modeling approach within an information-theoretic framework to examine the influence of total rainfall, rainfall frequency, and temperature on the timing of nesting, nesting success, and productivity of hawks during 1995-2000. The best models indicated an influence of rainfall frequency and laying period on hawk reproduction. During years with less frequent rainfall in the summer and fall months prior to the beginning of the breeding …