Abstract
Male red-winged blackbirds were given implants of testosterone or flutamide in order to manipulate the level of androgen reaching receptor sites. Implants of cholesterol were given as controls. Radioimmunoassay showed higher levels of testosterone and DHT in the plasma of testosterone-implanted birds than in the plasma of the pooled flutamide-implanted and cholesterol-implanted birds. Dominance was significantly correlated with effective androgen level. Androgen level was not correlated with rates of supplantations per subordinate but was correlated with rates of escalated attacks per subordinate. Thus androgen level influences dominance in male red-winged blackbirds by influencing one component of aggressiveness.
| Original language | English |
|---|---|
| Pages (from-to) | 126-135 |
| Number of pages | 10 |
| Journal | Hormones and Behavior |
| Volume | 14 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 1 1980 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Endocrinology
- Behavioral Neuroscience
- Neurology
- Psychology(all)
Cite this
The effects of androgen and antiandrogen on dominance and aggressiveness in male red-winged blackbirds. / Searcy, William; Wingfield, John C.
In: Hormones and Behavior, Vol. 14, No. 2, 01.01.1980, p. 126-135.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The effects of androgen and antiandrogen on dominance and aggressiveness in male red-winged blackbirds
AU - Searcy, William
AU - Wingfield, John C.
PY - 1980/1/1
Y1 - 1980/1/1
N2 - Male red-winged blackbirds were given implants of testosterone or flutamide in order to manipulate the level of androgen reaching receptor sites. Implants of cholesterol were given as controls. Radioimmunoassay showed higher levels of testosterone and DHT in the plasma of testosterone-implanted birds than in the plasma of the pooled flutamide-implanted and cholesterol-implanted birds. Dominance was significantly correlated with effective androgen level. Androgen level was not correlated with rates of supplantations per subordinate but was correlated with rates of escalated attacks per subordinate. Thus androgen level influences dominance in male red-winged blackbirds by influencing one component of aggressiveness.
AB - Male red-winged blackbirds were given implants of testosterone or flutamide in order to manipulate the level of androgen reaching receptor sites. Implants of cholesterol were given as controls. Radioimmunoassay showed higher levels of testosterone and DHT in the plasma of testosterone-implanted birds than in the plasma of the pooled flutamide-implanted and cholesterol-implanted birds. Dominance was significantly correlated with effective androgen level. Androgen level was not correlated with rates of supplantations per subordinate but was correlated with rates of escalated attacks per subordinate. Thus androgen level influences dominance in male red-winged blackbirds by influencing one component of aggressiveness.
UR - http://www.scopus.com/inward/record.url?scp=0018935235&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0018935235&partnerID=8YFLogxK
U2 - 10.1016/0018-506X(80)90004-5
DO - 10.1016/0018-506X(80)90004-5
M3 - Article
C2 - 7191404
AN - SCOPUS:0018935235
VL - 14
SP - 126
EP - 135
JO - Hormones and Behavior
JF - Hormones and Behavior
SN - 0018-506X
IS - 2
ER -