Reproduction of the greater bulldog bat Noctilio leporinus (Chiroptera: Noctilionidae) in a mangrove area in southern Brazil

Bordignon, Marcelo Oscar; França, Adriana de Oliveira

doi:10.1590/s1676-06032012000400006

Cited by 3 publications

(2 citation statements)

References 18 publications

(22 reference statements)

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“…Thus, studies performing testicular histomorphometric analysis become relevant to establish the reproductive dynamics of bats (Morais et al 2013a, 2014a, 2014b, Lima Junior et al 2014. Associated with this information, histology of Carollia perspicillata testis presents morphological characteristics similar to those described for other bat species (Beguelini et al 2009, 2011, Bordignon & França 2012.…”

Section: Discussionsupporting

confidence: 69%

Seasonal influence on testicular morphophysiological parameters of bat Carollia perspicillata in fragments of the Atlantic Forest, northeastern Brazil

Arandas

Teixeira

et al. 2019

Pesq. Vet. Bras.

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ISSN 0100-736X (Print) ISSN 1678-5150 (Online) RESUMO.-[Influência sazonal sobre os parâmetros morfofisiológicos testiculares de Carollia perspicillata (Chiroptera: Phyllostomidae) em fragmentos florestais de Mata Atlântica, Nordeste do Brasil.] Os morcegos pertencem a ordem Chiroptera, família Phyllostomidae, e apresentam ampla diversidade de estratégias reprodutivas.Entretanto, as informações relacionadas à biologia reprodutiva dos machos são escassas, principalmente no Nordeste do Brasil. Dessa forma, o trabalho avaliou a histomorfometria sazonal testicular de Carollia perspicillata em fragmentos de Mata Atlântica de Pernambuco. Para tanto, os machos adultos foram coletados, eutanasiados para a remoção dos testículos, e posteriormente submetidos à técnica histológica de rotina. As análises histomorfométricas avaliaram as áreas de ocupação do compartimento tubular e intertubular, assim como a quantificação dos espermatócitos, espermátides arredondadas, espermátides alongadas, células de Sertoli e de Leydig. Os resultados indicaram que a espécie apresenta sazonalidade reprodutiva, visto que maiores médias significativas dos parâmetros testiculares foram encontradas na estação chuvosa, que é um período de maior disponibilidade de recursos alimentares. Tais ABSTRACT.-Arandas M.Bats belong to the order Chiroptera, family Phyllostomidae, and present a wide diversity of reproductive strategies. However, information on the reproductive biology of male bats is scarce, mainly in the Northeast Region of Brazil. Thus, this study evaluated the seasonal testicular histomorphometry of the bat Carollia perspicillata in fragments of the Atlantic Forest in Pernambuco state. To this end, adult males were collected, euthanized for removal of the testicles, and later submitted to a routine histological technique. Histomorphometric analysis included assessment of the areas of tubular and intertubular compartment occupation, as well as quantification of spermatocytes, rounded spermatids, elongated spermatids, and Sertoli and Leydig cells. Results indicated that this bat species presents reproductive seasonality, because significantly higher averages of the testicular parameters were observed in the rainy season, which is a period of greater availability of food resources. Such inferences indicate that there is a synchrony between peak spermatogenesis and hormonal inversion in the months of high precipitation; furthermore, a higher carrying capacity of the Sertoli cells is noted. C. perspicillata males possibly present greater sperm and androgenic activity in the rainy season, associated with increased tubular area and number of spermatogenic cells, as well as with the intertubular area and number of Leydig cells, respectively.

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Section: Discussionsupporting

confidence: 69%

Seasonal influence on testicular morphophysiological parameters of bat Carollia perspicillata in fragments of the Atlantic Forest, northeastern Brazil

Arandas

Teixeira

et al. 2019

Pesq. Vet. Bras.

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“…For this reason, it is very important to associate these findings with the histological and morphometric analysis of the gonads (Paula et al 2002, Morais et al 2013c, 2014a. In Brazilian territory, it is verified that there are no studies either about histology or ovarian morphometry related to the different species of bats, so that only a few investigations based on external morphology characteristics were carried out (Duarte & Talamoni 2010, Bordignon & França 2012.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the reproductive stage and ovarian histomorphometry of Dermanura cinerea (Chiroptera: Phyllostomidae) in an Atlantic Forest fragment of Pernambuco, northeastern Brazil

et al. 2018

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This study aimed to analyze the reproductive stage, histology and morphometry of the ovary of Dermanura cinerea in an Atlantic Forest fragments in the Biological Reserve of Saltinho, Pernambuco, Brazil. Adult females were captured monthly by mist net, during two consecutive nights from June/2014 to November/2015. The meteorological data were provided by the National Institute of Meteorology and grouped together with the reproductive data, in six periods: period I (June to August/2014), period II (September to November/2014), period III (December/2014 to February/2015), period IV (March to May/2015), period V (June to August/2015) and period VI (September to November/2015). The females were classified according to their reproductive stages in: Inactive, pregnant, lactating and postlactating. Among the 25 females caught, 10 inactive females were selected for the histomorphometric analysis of the ovaries and then they were euthanized. After that, the specimens had their ovaries removed, fixed, processed and included in Paraplast. The organs were cut and stained by Hematoxylin - Eosin and the histological slides produced were submitted to the appropriate optical microscope analysis. Each type of ovarian follicle was estimated according to the histological characteristics evidenced for other mammals. In the morphometric analysis, it was considered: The area of the ovary (measured in square millimeter), Quantification of different types of ovarian follicles (unilaminar and multilaminar primary follicles, antral and matures) and corpus luteum, as well as the area of each by those different follicles (measured in square micrometer) The results indicated that 16 females were inactive, 5 were lactating, 4 were pregnant and no post-lactating. The histological analysis revealed that the ovaries of D. cinerea exhibit characteristics, structures and cellular types similar to other mammals. The morphometric data of the study area were statistically evaluated using the Student’s t-test. Therefore, ovarian histomorphometric analysis are very important to infer with greater certainty about the reproduction of a species. Thus, it was observed that females of D. cinerea exhibit two reproductive peaks, that is, they can give birth either at the end of dry periods or from the beginning to the middle of the rainy season. The main feature observed in the ovary of this species, found in the Atlantic Forest area of the state of Pernambuco, is the preparation of the ovarian cortex to ovulate in months of high rainfall throughout the year. Therefore, this species tries to adjust its reproductive period with the variations of the environmental conditions, so that the reproduction might occur during the period more favorable for the maintenance of their offspring.

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Natural history of the fishing batNoctilio leporinus(Chiroptera: Noctilionidae) in the Gulf of Mexico

et al. 2022

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We report feeding behaviour, dates of peak reproduction, and sexual size dimorphism of the fishing bat, Noctilio leporinus, in the Gulf of Mexico. For the first time we document the size of cheek pouches in N. leporinus and fish species consumed in the water bodies of southern Mexico and analyse differences in wing morphology and biomechanical flight descriptors between the sexes. We found sexual dimorphism in size for most of the external measurements but not in wing characters. This species can consume prey up to a third of its size. We confirmed the presence of N. leporinus in localities in Tabasco, Mexico 60 years after the first report.

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Reproduction of the greater bulldog bat Noctilio leporinus (Chiroptera: Noctilionidae) in a mangrove area in southern Brazil

Cited by 3 publications

References 18 publications

Seasonal influence on testicular morphophysiological parameters of bat Carollia perspicillata in fragments of the Atlantic Forest, northeastern Brazil

Seasonal influence on testicular morphophysiological parameters of bat Carollia perspicillata in fragments of the Atlantic Forest, northeastern Brazil

Analysis of the reproductive stage and ovarian histomorphometry of Dermanura cinerea (Chiroptera: Phyllostomidae) in an Atlantic Forest fragment of Pernambuco, northeastern Brazil

Natural history of the fishing batNoctilio leporinus(Chiroptera: Noctilionidae) in the Gulf of Mexico

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