Data/hora: 11/06/2024 08:17:58

Provedor de dados: | 82
País: | Brazil
Título: | Temporal and spatial variation of Stenoma cathosiota Meyrick (Lepidoptera: Elachistidae) caterpillar abundance in the cerrado of Brasilia, Brazil
Autores: | Morais,Helena C.; Cabral,Bérites C.; Mangabeira,Jacimary A.; Diniz,Ivone R.
Data: | 2007-12-01
Ano: | 2007
Palavras-chave: | Braconidae; Stenomatinae; Fire; Host plant; Parasitism.
Resumo: | The caterpillars of Stenoma cathosiota Meyrick feed on Roupala montana Aubl. (Proteaceae) in the cerrado of the Distrito Federal, Brazil. They construct shelters by joining leaves of the plant where they feed and pupate. The caterpillars are parasitized by a wasp (Hymenoptera: Brachonidae), which emerges from the pupae. Caterpillar abundance and parasitism frequency were associated in an area of frequently burned cerrado (biennial fire) and in another area that burns sporadically (1987 and 1994). For S. cathosiota, the variation among years in a single area, with sporadic fires, was greater than the variation among areas with different fire regimes. Caterpillar abundance among years was significantly different in the area that burns sporadically (chi² = 24.06; df. = 1; P = 0.000). However, there were no significant differences on caterpillar abundance between areas for the same period (chi² = 3.45; df. = 1; P = 0.063). Parasitism frequency was high, reaching 29% of the collected caterpillars, and did not differ among areas. The great temporal variation in abundance of lepidopteran caterpillars in the cerrado makes it difficult to determine the effects that fire exerts over this fauna.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000600004
Editor: | Sociedade Entomológica do Brasil
Relação: | 10.1590/S1519-566X2007000600004
Formato: | text/html
Fonte: | Neotropical Entomology  v.36 n.6 2007
Fonte: | info:eu-repo/semantics/openAccess