Moore M C
J Comp Physiol A. 1986 Feb;158(2):159-63. doi: 10.1007/BF01338559.
In many vertebrates, seasonal activation of sexual and territorial behaviors coincides with seasonal gonadal activation and is caused by the increase in sex steroid hormones. Both male and female Sceloporus jarrovi are territorial, but in this species territorial behavior is seasonally activated in late April, months before seasonal gonadal maturation, which occurs in August prior to the fall mating season. Measurements of seasonal changes in circulating levels of the sex steroid hormones testosterone, progesterone, and estradiol indicated that testosterone levels in both sexes are elevated when territorial behavior is expressed, even during the period of nonbreeding-season territoriality during the summer. This suggests that a nonbreeding season behavior is activated by a sex steroid hormone in this species.
在许多脊椎动物中，性行为和领地行为的季节性激活与性腺的季节性激活同时发生，且由性类固醇激素的增加引起。雄性和雌性雅罗蜥（Sceloporus jarrovi）都具有领地意识，但在该物种中，领地行为在四月下旬季节性激活，这比性腺季节性成熟提前数月，性腺季节性成熟发生在秋季交配季节之前的八月。对性类固醇激素睾酮、孕酮和雌二醇循环水平的季节性变化测量表明，当表现出领地行为时，两性的睾酮水平都会升高，即使在夏季非繁殖季节的领地行为期间也是如此。这表明该物种的一种非繁殖季节行为是由性类固醇激素激活的。
