Abundância e fenologia de Cryptocellus simonis Hansen & Sorensen, 1904 (Ricinulei, Arachnida) na serapilheira do Bosque Rodrigues Alves, Belém, Pará, Brasil, com a comparação de três técnicas de coleta.
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Centro de Referência em Informação Ambiental, CRIA, (Reference Center for Environmental Information), São Paulo
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The abundance and phenology of a population of Cryptocellus simonis from Rodrigues Alves Park, Belém, Pará
State, Brazil was studied. A total of 159 concentrated litter samples (each one with 1 m2) were obtained, 53 manually sorted,
53 processed in a Berlese-Tullgren apparatus and 53 processed in a Winkler apparatus. These three techniques produced
111 individuals (11 males, 15 females, 61 nymphs and 24 larvae). The median and highest densities were 0.7 and 18 ind./m2,
respectively. During the rainy season (March to May) the juveniles represented 78% of all collected individuals (eight
larvae, 16 protonymphs, seven deutonymphs, eight tritonymphs and 11 adults), while during the dry season (September to
November) the juveniles represented 75% of the total catch (16 larvae, nine protonymphs, 11 deutonymphs, 10 tritonymphs
and 15 adults). No significant differences in the abundance of C. simonis were detected comparing the rainy and dry
seasons. The development stages showed a significant positive correlation between the carapace and femur III lengths.
Winkler bags represented 63% of all catches and were the best collecting technique for ricinuleid sampling.
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BARREIROS, José Augusto P.; ROCHA, R. P.; BONALDO, Alexandre Bragio. Abundância e fenologia de Cryptocellus simonis Hansen & Sorensen, 1904 (Ricinulei, Arachnida) na serapilheira do Bosque Rodrigues Alves, Belém, Pará, Brasil, com a comparação de três técnicas de coleta. Biota Neotropica, v. 5, n. 1a, 2005. Disponível em: <http://www.scielo.br/scielo.php?script=sci_ arttext&pid=S1676-06032005000200006&lng=en&nrm=iso>. Acesso em: 14 Feb 2008. doi: 10.1590/S1676-06032005000200006