Hormones, Reproductive Behavior, and Speciation
نویسندگان
چکیده
منابع مشابه
Reproductive Biology of the Coyote (canis Latrans): Integration of Mating Behavior, Reproductive Hormones, and Vaginal Cytology
The reproductive biology of wild Canis species is often described as unique among mammals because an unusual combination of behavioral and physiological characteristics including a seasonally monestrous cycle, copulatory lock or tie, obligatory pseudopregnancy, social monogamy, and biparental care of the young. We investigated social behavior, endocrine profiles, and vaginal cytology of female ...
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OBJECTIVES : Decreased libido and a decline in morning serum testosterone levels were reported in men with obstructive sleep apnea (OSA). Our study aimed to evaluate the pituitary-gonadal axis in middle age men with OSA before and after treatment with nasal continuous positive airway pressure (CPAP). MATERIAL AND METHODS : Measurement of the nocturnal serum luteinizing hormone (LH) and testoste...
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The success of conception in buffalo is greatly dependent on precise estrus detection and time of artificial insemination (AI). Various visual, behavioral, biochemical and gyneco-clinical parameters have been tracked closely and a cost-effective combinatorial model has been developed to detect estrus in buffaloes. Pheromones play pivotal roles in reproduction and behavior of mammals. Urine, an ...
متن کاملGenetic Divergence, Reproductive Isolation, and Marine Speciation
In marine species, high dispersal is often associated with only mild genetic differentiation over large spatial scales. Despite this generalization, there are numerous reasons for the accumulation of genetic differences between large, semi-isolated marine populations. A suite of well-known evolutionary mechanisms can operate within and between populations to result in genetic divergence, and th...
متن کاملEffects of carbamazepine on male reproductive hormones
Background :Reproductive endocrine disorders and sexual dysfunction are common among men with epilepsy. We investigated sexual hormone serum levels among men with newly diagnosed epilepsy, before starting any antiepileptic drug (AED), and then after starting carbamazepine (CBZ), to determine the role and effects of epilepsy versus CBZ in creating reproductive endocrine disorders. Methods : ...
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ژورنال
عنوان ژورنال: American Zoologist
سال: 1977
ISSN: 0003-1569
DOI: 10.1093/icb/17.1.271