Morphological sexual maturity, sexual dimorphism and heterochely in Aegla manuinflata (Anomura)
نویسندگان
چکیده
منابع مشابه
Sexual Dimorphism
S Vertebrates ” ( J. G. M. Thewissen , and S. Nummela , eds ) , pp. 211 – 224 . University of California Press , Berkeley . Pihlström , H. ( 2008 ). Comparative anatomy and physiology of chemical senses in aquatic mammals . In “ Sensory Evolution on the Threshold Adaptations in Secondarily Aquatic Vertebrates ” ( J. G. M. Thewissen , and S. Nummela , eds ) , pp. 95 – 109 . University of Califor...
متن کاملSexual Dimorphism in Bite Performance Drives Morphological Variation in Chameleons
Phenotypic performance in different environments is central to understanding the evolutionary and ecological processes that drive adaptive divergence and, ultimately, speciation. Because habitat structure can affect an animal's foraging behaviour, anti-predator defences, and communication behaviour, it can influence both natural and sexual selection pressures. These selective pressures, in turn...
متن کاملMorphological classification and sexual dimorphism of hyoid bone: new approach.
Hyoid bone is a part of viscerocranium placed between the tongue root and thyroid cartilage to which it is connected by thyrohyoid membrane. Widely accepted morphological classification does not exist. Sexual dimorphism was analysed in this study and new guidelines for anatomical classification of hyoid bones based on anthropometric parameters were given. Total number of analysed bones was 70. ...
متن کاملSexual dimorphism and human enhancement.
Robert Sparrow argues that because of women's longer life expectancy philosophers who advocate the genetic modification of human beings to enhance welfare rather than merely supply therapy are committed to favouring the selection of only female embryos, an implication he deems sufficiently implausible to discredit their position. If Sparrow's argument succeeds, then philosophers who advocate bi...
متن کاملWnt Signaling in Sexual Dimorphism.
The embryonic gonad of Drosophila melanogaster begins to display sexually dimorphic traits soon after its formation. Here we demonstrate the involvement of a wnt family ligand, wnt-2, in the induction of these sex-specific differences. We show that wnt-2 contributes to the survival of a male-specific population of somatic gonadal precursor cells (SGPs), the male-specific SGPs that are located a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Crustacean Biology
سال: 2012
ISSN: 0278-0372,1937-240X
DOI: 10.1163/193724012x635944