کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2844455 1166335 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Differences induced by incubation temperature, versus androgen manipulation, in male leopard geckos (Eublepharis macularius)
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی فیزیولوژی
پیش نمایش صفحه اول مقاله
Differences induced by incubation temperature, versus androgen manipulation, in male leopard geckos (Eublepharis macularius)
چکیده انگلیسی

A fundamental tenet of sexual selection is that in sexually dimorphic traits, there is variation within a sex. In leopard geckos (Eublepharis macularius), a species with temperature-dependent sex determination, embryonic temperature contributes both to sex determination and polymorphisms within each sex. In this study we report that males from different incubation temperatures, one hitherto untested, exhibit significant differences in behavior even when castrated. Further, treatment with dihydrotestosterone increases scent marking, a territorial behavior. This supports previous results indicating that temperature has a direct organizing action on brain and sociosexual behavior independent of gonadal hormones.


► Temperature polymorphisms exist among castrated males in time spent with conspecifics.
► Castrated males from different incubation temperatures do not differ in scent marking.
► DHT treatment increases scent marking behavior in castrated males.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physiology & Behavior - Volume 107, Issue 1, 20 August 2012, Pages 121–124
نویسندگان
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