Incubation temperature affects the behavior of adult leopard geckos (Eublepharis macularius)
| Autor: | Alan Tousignant, David Crews, Deborah Flores |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Male
medicine.medical_specialty Sex Determination Analysis Sex Differentiation media_common.quotation_subject Experimental and Cognitive Psychology Eublepharis Behavioral Neuroscience chemistry.chemical_compound Sexual Behavior Animal Internal medicine Agonistic behaviour medicine Animals Gonadal Steroid Hormones Social Behavior Incubation media_common biology Temperature-dependent sex determination Ecology Temperature Lizards biology.organism_classification Aggression Endocrinology chemistry Leopard gecko Ovariectomized rat Estradiol benzoate Female Reproduction |
| Zdroj: | Physiologybehavior. 55(6) |
| ISSN: | 0031-9384 |
| Popis: | The leopard gecko has temperature-dependent sex determination (TSD); females are predominantly produced when incubated at 26 degrees C (100%), 30 degrees C (70%), and 34 degrees C (95%), whereas males are predominantly produced at 32.5 degrees C (75%). Exogenous estradiol can override the effect of temperature on sex determination. To compare temperature-determined females with hormone-determined females, eggs from the male-biased temperature were treated with estradiol benzoate during incubation. As adults, animals from a male-biased incubation temperature were more likely to exhibit aggression than animals from female-biased incubation temperatures. Furthermore, females from a male-biased incubation temperature tended to be less attractive than females from female-biased temperatures. Hormone-determined females were both attractive and aggressive. This suggests that incubation temperature is an important development determinant of adult aggressiveness and attractiveness. The 26 degrees C animals ovariectomized on the day of hatch exhibited more frequent aggression and were unreceptive to males, indicating that postnatal ovarian hormones also play a role in adult sociosexual behaviors. The parallel between incubation temperature and intrauterine position in laboratory mammals is discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|