| Journal: | Revista brasileira de zoologia |
| Database: | PERIÓDICA |
| System number: | 000281085 |
| ISSN: | 0101-8175 |
| Authors: | Peruquetti, Rui Carlos1 |
| Institutions: | 1Universidade Federal de Vicosa, Departamento de Biologia Geral, Vicosa, Minas Gerais. Brasil |
| Year: | 2003 |
| Season: | Jun |
| Volumen: | 20 |
| Number: | 2 |
| Pages: | 207-212 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | It was compared body size (measured as intertegular span) variance of trapped-males of Eulaema nigrita Lepeletier, 1841 sampled in dry (July, August and September) and wet (December, January and February) seasons of the years 1988/89 and 1994/95 in Viçosa (Minas Gerais, Brazil). It was also compared the body size variance between males and females sampled in three nests found in São Carlos (São Paulo, Brazil) and between these males and trapped ones. The smaller male (6.4 mm) was sampled in June and the bigger (8.9 mm) in July 1994, but the majority (32.3%) showed an intertegular span ranging from 7.8 to 8.0mm. The observed variance in body size was similar between males sampled in nests and trapped-males and the variance found inside a nest was similar between the sexes. However, males sampled in 1988/89 were bigger than 1994/95 males and males sampled in nests were smaller than trapped-males. The variance of the body size of males did differ between 1988/89 and 1994/95. In the first period differences between males sampled in dry or wet season was not observed, but in 1994/95 period the males sampled in dry season showed significantly greater variance in body size than males sampled in wet season. The body size variance did not differ between the wet seasons of 1988/89 and 1994/95. The body size variation, measured as the coefficient of variation in intertegular span, did not differ between males of E. nigrita (CV = 4.3%) and ground-nesting bees. These results show that the variation in body size of males of E. nigrita reflects |
| Disciplines: | Biología |
| Keyword: | Anatomía e histología, Ecología, Insectos, Apidae, Talla corporal, Machos, Proporción sexual, Estrategias reproductivas, Eulaema nigrita, Brasil |
| Keyword: | Biology, Anatomy and histology, Ecology, Insects, Apidae, Body size, Males, Sex ratio, Reproductive strategies, Eulaema nigrita, Brazil |
| Full text: | Texto completo (Ver HTML) |
