Charles Ziegenfus

Testosterone and Avian Life Histories: Effects of Experimentally Elevated Testosterone on Behavior and Correlates of Fitness in the Dark-Eyed Junco (Junco hyemalis)

Ellen D. Ketterson, Val Nolan, Licia Wolf et al. · The American Naturalist · 1992 · 424 citations

Breeding Behavior, Testosterone Treatment, Fitness +22

Phenotypic engineering: using hormones to explore the mechanistic and functional bases of phenotypic variation in nature

Ellen D. Ketterson, Val Nolan, Michelle Cawthorn et al. · Ibis · 1996 · 225 citations

Phenotypic Variation, Experimental Evolution, Fitness +21

Testosterone and avian life histories: The effect of experimentally elevated testosterone on corticosterone and body mass in dark-eyed juncos

Ellen D. Ketterson, Val Nolan, Licia Wolf et al. · Hormones and Behavior · 1991 · 211 citations

Animal Physiology, Dark-eyed Juncos, Developmental Biology +13

Testosterone affects reproductive success by influencing extra–pair fertilizations in male dark–eyed juncos (Aves:<i>Junco hyemalis</i>)

Samrrah A. Raouf, Patricia G. Parker, Ellen D. Ketterson et al. · Proceedings of the Royal Society B Biological Sciences · 1997 · 190 citations · Full text

Breeding Behavior, Fertility, Fitness +22

Effects of testosterone on spatial activity in free-ranging male dark-eyed juncos, Junco hyemalis

C. Ray Chandler, Ellen D. Ketterson, Val Nolan et al. · Animal Behaviour · 1994 · 144 citations

Biology, Junco Hyemalis, Fitness +8