Robert E. Hegner, Ph.D.

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"Robert Hegner"
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Wingfield JC, Ramenofsky M, Hegner RE, et al. (2019) Whither the challenge hypothesis? Hormones and Behavior. 104588
Hegner RE, Wingfield JC. (2010) Social Status and Circulating Levels of Hormones in Flocks of House Sparrows, Passer domesticus Ethology. 76: 1-14
Wingfield JC, Hegner RE, Lewis DM. (1992) Hormonal responses to removal of a breeding male in the cooperatively breeding white-browed sparrow weaver, Plocepasser mahali. Hormones and Behavior. 26: 145-55
Wingfield JC, Hegner RE, Lewis DM. (1991) Circulating levels of luteinizing hormone and steroid hormones in relation to social status in the cooperatively breeding white-browed sparrow weaver,Plocepasser mahali Journal of Zoology. 225: 43-58
Wingfield JC, Hegner RE, Lewis DM. (1991) Circulating levels of luteinizing hormone and steroid hormones in relation to social status in the cooperatively breeding white-browed sparrow weaver, Plocepasser mahali Journal of Zoology. 225: 43-58
Wingfield JC, Hegner RE, Dufty AM, et al. (1990) The "challenge hypothesis': theoretical implications for patterns of testosterone secretion, mating systems, and breeding strategies American Naturalist. 136: 829-846
Hegner RE, Wingfield JC. (1987) Effects of Brood-Size Manipulations on Parental Investment, Breeding Success, and Reproductive Endocrinology of House Sparrows The Auk. 104: 470-480
Hegner RE, Wingfield JC. (1987) Effects of Experimental Manipulation of Testosterone Levels on Parental Investment and Breeding Success in Male House Sparrows The Auk. 104: 462-469
Hegner RE, Wingfield JC. (1986) Behavioral and endocrine correlates of multiple brooding in the semicolonial house sparrow Passer domesticus. II. Females. Hormones and Behavior. 20: 313-26
Hegner RE, Wingfield JC. (1986) Behavioral and endocrine correlates of multiple brooding in the semicolonial house sparrow Passer domesticus. I. Males. Hormones and Behavior. 20: 294-312
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