Otro
Seasonal testicular changes in Dendropsophus minutus Peters, 1872 (Anura, Hylidae)
Registro en:
Biocell. Mendoza: Inst Histol Embriol-conicet, v. 36, n. 2, p. 57-62, 2012.
0327-9545
S0327-95452012000200002
WOS:000309621800002
S0327-95452012000200002.pdf
Autor
Ferreira, Adelina
Mehanna, Mahmoud
Resumen
The reproductive cycle in anurans may be either continuous or discontinuous. These differences may be connected to seasonal climate changes and/or to anthropic activity. Forty adult male individuals of the Dendropsophus minutus species were collected during one year, in the municipality of Chapada dos Guimaraes (Mato Grosso, Brazil). The testicles were studied under light and transmission electron microscopy. No variations were observed when the diameter of the seminiferous tubules and the thickness of the interstitial tissue were studied. However, changes in spermatogenesis were conspicuous and indicated that the reproductive cycle of D. minutus in Chapada dos Guimaraes is discontinuous and seems related to variations in air temperature and rainfall.