Author
John Yu-Lin Yu
Bio: John Yu-Lin Yu is an academic researcher from Academia Sinica. The author has contributed to research in topics: Estradiol benzoate & Lordosis. The author has an hindex of 2, co-authored 2 publications receiving 39 citations.
Topics: Estradiol benzoate, Lordosis, Lesion, Bufo melanostictus
Papers
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TL;DR: Combined data from spermatogenic activity, plasma androgen levels, and changes in the weights of testes, fat bodies, and livers revealed that B. melanostictus is a continuous breeder.
Abstract: The male reproductive cycle of the toad, Bufo melanostictus, was studied with emphasis on spermatogenic activity, plasma androgen, and changes in the weights of testes, liver, and fat bodies. A total of 98 toads were collected between March 1990 and March 1991 in central Taiwan. Histological evidence indicated that the spermatogenic cycle of this toad is of a fluctuating continuous type. Although cell nests of all spermatogenic types were present every month of the year, the greatest intensity of spermatogenic activity, as expressed by the presence of sperm bundles, occurred in March. Both testicular weight and plasma androgen levels peaked in March. The weights of fat bodies peaked in July, which was not coincident with the beginning of breeding. Combined data from spermatogenic activity, plasma androgen levels, and changes in the weights of testes, fat bodies, and livers revealed that B. melanostictus is a continuous breeder. However, its annual reproductive cycle could be divided into 4 period...
38 citations
TL;DR: The results indicate that an enhanced lordosis response in aged rats is partly due to high circulating E2 levels and part due to disinhibition of the septal region on lordosis.
4 citations
Cited by
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TL;DR: Research into the relationships between testicular androgens and male behaviors, mainly using castration/steroid treatment studies, generally supports the conclusion that androgens are necessary but not sufficient to enhance male behaviors.
161 citations
TL;DR: It is suggested that the lateral septum exerts not only a facilitatory influence on masculine sexual behavior but also an inhibitory influence on feminine sexual behavior in male rats.
116 citations
TL;DR: The results suggest that the septum exerts a lordosis-inhibiting influence, and that the ventrolateral outputs play a critical role in sending this inhibitory signal.
39 citations
TL;DR: The results suggest that these species present the reproductive pattern typical of desert anurans, consisting of opportunistic breeders that reproduce when triggered by a rain stimulus.
37 citations
TL;DR: Social surveys indicate that the Asian toad may have already been present for some years and potentially introduced prior to 2010, with the site of its introduction likely south of Toamasina near National Route 2 and the Ambatovy Plant.
Abstract: In March 2014, the Asian toad Duttaphrynus melanostictus was reported from Madagascar's second largest city and main port Toamasina, raising immediate concerns about the invasive nature of the newl...
26 citations