Avian ecologists and physiologists have different sexual preferences.
نویسنده
چکیده
Seasonal timing is studied by ecologists and physiologists alike and it is now widely recognized that further integration of these fields is needed for a full understanding of phenology. This is especially true in the light of the impact of global climate change on living organisms. In studies of avian reproduction, one obstacle to this integration is that ecologists and physiologists do not allocate their research efforts equally to males and females. The physiological orchestration of breeding stages has been studied almost exclusively in males, while in avian ecology and evolutionary biology females are more often considered. This sex bias has severe implications: sexes differ in the way they use external cues to organize their life cycles, but often cue in on each other's physiology and behavior. The simultaneous investigation of both males and females within single studies is thus essential. In this review, I begin by illustrating the sex-bias in studies and attempt to explain its origin. I then provide a number of examples in which focusing on a single sex would have resulted in misleading conclusions. Finally, I review some classical studies of female reproductive physiology that have promoted and developed research on the "forgotten-sex".
منابع مشابه
WHO IS AN ECOLOGIST? An Ecologists is a Physiologists - as such ecology may be interpreted as EXTERNAL PHYSIOLOGY of an organism and physiology as INTERNAL ECOLOGY of an organism
متن کامل
Phenology, seasonal timing and circannual rhythms: towards a unified framework.
Phenology refers to the periodic appearance of life-cycle events and currently receives abundant attention as the effects of global change on phenology are so apparent. Phenology as a discipline observes these events and relates their annual variation to variation in climate. But phenology is also studied in other disciplines, each with their own perspective. Evolutionary ecologists study varia...
متن کاملCharacterization of Production and Reproduction Performances in Rhode Island Red-White Strain Chicken
This study aimed to characterize production and reproduction performances in Rhode Island Red-White strain chicken developed and maintained at the Central Avian Research Institute, Izatnagar. Three hundred and forty six fertile eggs were set in automated electric incubation and 234 chicks were investigated in three hatches. The performance data was analyzed by least squares analysis of variance...
متن کاملMechanisms of avian imprinting: a review.
Filial imprinting is the process through which early social preferences become restricted to a particular object or class of objects. Evidence is presented showing that filial preferences are formed not only as a result of learning through exposure to an object, but also under the influence of visual and auditory predispositions. The development of these predispositions is dependent upon certai...
متن کاملS 18 - 5 Sexual signals , learning processes and evolution
Examples are given of how the widespread learning processes of sexual imprinting, song learning and song preference learning may affect the evolutionary processes of sexual selection and speciation in birds. They show that sexual imprinting may occur together with perceptual biases, giving rise to preferences for mates with exaggerated traits. Sexual imprinting may also give rise to exaggeratio...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- General and comparative endocrinology
دوره 176 1 شماره
صفحات -
تاریخ انتشار 2012