DANTAS, A. P.; http://lattes.cnpq.br/9364663283519898; DANTAS, Alexandre Pereira.
Resumo:
The control of reproductive cycles requires that bodies be able to detect changes in
the environment and adjust the parameters according to the requirements. Being
mediated by the interaction between the endogenous rhythms of the animal and the
influence of environmental factors, therefore, in open areas physical environment
conditions such as temperature and precipitation are the main factors influencing the
standards anuran reproductive. Therefore, the objective of this work was to
characterize the histological and morphometric aspects of testicles of Pithecopus
nordestinus (CARAMASHI, 2006) as well as to assess the influence of precipitation
and temperature on the parameters tested. The collections were made in the
ecological station of Tapacurá-TSE, is a remnant of mata atlantica seasonal
semideciduous forests. 23 males were collected from Pithecopus nordestinus
distributed between the months of February through November 2018. The monthly
figures show that only significant relationships between rainfall and the density of
spermatids primary (Esp I) (r = 0.04; p = 0.02), while the secondary Spermatids (Esp
II) and Sperm (Z) did not show any relationship significant. Already the monthly
variation of the temperature of the TSE showed no significant relations with the density
of spermatids primary (Esp I), spermatids (Esp II) and sperm (Z). The results of this
study support with the KEYS et al. (2016), which emphasizes that the spermatogenesis
in Anurans in General is with cell organization always cystic on a same stage of
differentiation. Individuals collected in this work presented the testicles as pairs, oval
structures and compact, varying your color with yellowish, whitish. This work has
complied with the objectives proposed, in which the monthly values of the density of
primary, secondary and spermatids spermatids sperm showed significant variations
over the months demonstrating collection too, dependence with the variation of rainfall
in the region.