Nephila female gigantism attained through post-maturity molting
نویسندگان
چکیده
منابع مشابه
SHORT COMMUNICATION Nephila female gigantism attained through post-maturity molting
Nephila are known for the greatest degrees of sexual size dimorphism among orb weaving spiders (Araneoidea) and thus among terrestrial animals. However, a meaningful quantification of the dimorphism is lacking and the proximate developmental mechanisms of female gigantism are poorly understood, being attributed solely to female delayed maturation. Here we show that females in the giant wood spi...
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While molting occurs in the development of many animals especially in arthropods, postmaturity molting (PMM, organisms continue to molt after sexual maturity) has received little attention. Mechanism of molting has been studied intensively, however, the mechanism of PMM remains unknown although it is suggested to be crucial for the development of body size. In this study, we investigated factor...
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BACKGROUND More than 41,000 spider species are known with about 400-500 added each year, but for some well-known groups, such as the giant golden orbweavers, Nephila, the last valid described species dates from the 19(th) century. Nephila are renowned for being the largest web-spinning spiders, making the largest orb webs, and are model organisms for the study of extreme sexual size dimorphism ...
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A 28-year-old male patient presented to us with the history of swelling over the left foot, the proximal left leg, and another separate swelling over the left greater trochanteric region since birth. The rate of enlargement of digits was disproportionate to age. For the last 2 years, he started complaining of decreased sensation over the dorsum of the left foot and sole. The physical examinatio...
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ژورنال
عنوان ژورنال: Journal of Arachnology
سال: 2012
ISSN: 0161-8202,1937-2396
DOI: 10.1636/b12-03.1