Reproductive biology of the Green Ground Snake Erythrolamprus poecilogyrus sublineatus (Serpentes: Dipsadidae) in Subtropical Brazil
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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2017
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| author | FERNANDO M. QUINTELA |
| author_facet | FERNANDO M. QUINTELA |
| contents | Reproductive biology of the Green Ground Snake Erythrolamprus poecilogyrus sublineatus (Serpentes: Dipsadidae) in Subtropical Brazil FERNANDO M. QUINTELA WILIAM C. MARQUES DANIEL LOEBMANN Multidisciplinaria (Ciencias Naturales y Exactas) Ecology Squamata neotropics Pampa Biome reproduction We investigated reproductive features of the dipsadid snake Erythrolamprus poecilogyrus sublineatus in the southernmost Brazilian coast, a subtropical region characterized by well-marked seasons. Females are significantly smaller than males, have a shorter tail, and reach sexual maturity at later times along their development. In contrast to tropical subspecies, E. p. sublineatus females presented a seasonal pattern, with secondary follicles occurring from late winter to early autumn and egg production restricted to the whole spring and early summer. Males presented seasonal variation in testes volume (increase in autumn and decrease in winter) while no significant seasonal variation was found in ductus deferens width. The number of oviductal eggs varied from two to nine, thus, real fecundity is also inferior than that observed in tropical E. poecilogyrus forms. Considering the thermal requirements for reproduction, it is possible that the colder climatic conditions of the southern Brazilian coast have shaped the seasonal reproductive pattern in E. p. sublineatus. The shorter body size of this subspecies may also represent a conditioning factor of low fecundity. 2017 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32753602021 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.3 Vol.89 |
| format | Artículo científico |
| id | redalyc_32753602021 |
| institution | Redalyc |
| language | en |
| publishDate | 2017 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Reproductive biology of the Green Ground Snake Erythrolamprus poecilogyrus sublineatus (Serpentes: Dipsadidae) in Subtropical Brazil FERNANDO M. QUINTELA Multidisciplinaria (Ciencias Naturales y Exactas) Ecology Squamata neotropics Pampa Biome reproduction Reproductive biology of the Green Ground Snake Erythrolamprus poecilogyrus sublineatus (Serpentes: Dipsadidae) in Subtropical Brazil FERNANDO M. QUINTELA WILIAM C. MARQUES DANIEL LOEBMANN Multidisciplinaria (Ciencias Naturales y Exactas) Ecology Squamata neotropics Pampa Biome reproduction We investigated reproductive features of the dipsadid snake Erythrolamprus poecilogyrus sublineatus in the southernmost Brazilian coast, a subtropical region characterized by well-marked seasons. Females are significantly smaller than males, have a shorter tail, and reach sexual maturity at later times along their development. In contrast to tropical subspecies, E. p. sublineatus females presented a seasonal pattern, with secondary follicles occurring from late winter to early autumn and egg production restricted to the whole spring and early summer. Males presented seasonal variation in testes volume (increase in autumn and decrease in winter) while no significant seasonal variation was found in ductus deferens width. The number of oviductal eggs varied from two to nine, thus, real fecundity is also inferior than that observed in tropical E. poecilogyrus forms. Considering the thermal requirements for reproduction, it is possible that the colder climatic conditions of the southern Brazilian coast have shaped the seasonal reproductive pattern in E. p. sublineatus. The shorter body size of this subspecies may also represent a conditioning factor of low fecundity. 2017 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32753602021 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.3 Vol.89 |
| title | Reproductive biology of the Green Ground Snake Erythrolamprus poecilogyrus sublineatus (Serpentes: Dipsadidae) in Subtropical Brazil |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) Ecology Squamata neotropics Pampa Biome reproduction |
| url | https://www.redalyc.org/articulo.oa?id=32753602021 |