Mite diversity on plants of different families found in the Brazilian Atlantic Forest
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Data
2007-10-01
Autores
Castro, Tatiane M.M.G. de [UNESP]
Moraes, Gilberto J. de
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Editor
Sociedade Entomológica do Brasil
Resumo
Este trabalho relata a ocorrência de ácaros predominantemente predadores, fitófagos e de hábitos alimentares variados em plantas encontradas na Mata Atlântica. O objetivo foi estimar o possível papel da vegetação da Mata Atlântica como reservatório desses grupos de ácaros que são também encontrados em plantas de importância agrícola. Foram tomadas amostras de 187 espécies de plantas pertencentes a 73 famílias em três tipos de vegetação da Mata Atlântica, de fevereiro de 2001 a outubro de 2002, obtendo-se o total de 2.887 ácaros pertencentes a 163 morfo-espécies de 16 famílias. A diversidade de ácaros foi alta, especialmente dos predadores; estes corresponderam a 1.562 espécimes de 92 morfo-espécies. Dentro desse grupo, Phytoseiidae representou 71% dos espécimes e 62% das morfo-espécies. Os ácaros fitófagos corresponderam a 836 espécimes de 36 espécies. Nesse grupo, a maior proporção de espécimes (61%) correspondeu aos Tenuipalpidae, enquanto a maior proporção de espécies (64%) correspondeu aos Tetranychidae. Os ácaros com hábitos alimentares variados corresponderam a 491 espécimes de 36 morfo-espécies. Dentro desse grupo, a maior proporção de espécimes (52%) correspondeu aos Ascidae e a maior proporção de morfo-espécies (42%) correspondeu aos Tydeinae (família Tydeidae). Alta abundância e riqueza de morfo-espécies de ácaros predominantemente predadores, fitófagos e de hábitos alimentares variados foram observados em 17, cinco e nove espécies de plantas, respectivamente. Os resultados obtidos sugerem a importância das plantas da vegetação estudada como reservatório de ácaros predadores.
This work reports the occurrence of mites predominantly predatory, phytophagous and with varied feeding habits on plants of the Atlantic Forest vegetation type of the State of São Paulo. The objective was to estimate the possible role of the Atlantic Forest vegetation as reservoir of these groups of mites which are also found on plants of agricultural importance. Samples were taken from 187 plant species belonging to 73 families in three vegetation types of the Atlantic Forest from February of 2001 to October of 2002. A total of 2,887 mites belonging to 163 morpho-species of 16 families were collected. Mite diversity was high, especially of predatory mites; these corresponded to 1,562 specimens of 92 morpho-species. Within this group, Phytoseiidae comprised 71% of the specimens and 62% of the morpho-species. Phytophagous mites comprised 836 specimens of 36 morpho-species. Within this group, Tenuipalpidae comprised the larger proportion of specimens (61%) whereas Tetranychidae corresponded to the larger proportion of morpho-species (64%). Mites with varied feeding habits corresponded to 491 specimens of 36 morpho-species. In this group, the larger proportion of specimens (52%) consisted of Ascidae and the larger proportion of morpho-species (42%) consisted of Tydeinae (family Tydeidae). High abundance and high morpho-species richness of mites of predominantly predatory, phytophagous and variable feeding habits were observed on 17, five and nine plant species, respectively. The results obtained suggest the importance of plants of the studied vegetation as reservoirs of predatory mites.
This work reports the occurrence of mites predominantly predatory, phytophagous and with varied feeding habits on plants of the Atlantic Forest vegetation type of the State of São Paulo. The objective was to estimate the possible role of the Atlantic Forest vegetation as reservoir of these groups of mites which are also found on plants of agricultural importance. Samples were taken from 187 plant species belonging to 73 families in three vegetation types of the Atlantic Forest from February of 2001 to October of 2002. A total of 2,887 mites belonging to 163 morpho-species of 16 families were collected. Mite diversity was high, especially of predatory mites; these corresponded to 1,562 specimens of 92 morpho-species. Within this group, Phytoseiidae comprised 71% of the specimens and 62% of the morpho-species. Phytophagous mites comprised 836 specimens of 36 morpho-species. Within this group, Tenuipalpidae comprised the larger proportion of specimens (61%) whereas Tetranychidae corresponded to the larger proportion of morpho-species (64%). Mites with varied feeding habits corresponded to 491 specimens of 36 morpho-species. In this group, the larger proportion of specimens (52%) consisted of Ascidae and the larger proportion of morpho-species (42%) consisted of Tydeinae (family Tydeidae). High abundance and high morpho-species richness of mites of predominantly predatory, phytophagous and variable feeding habits were observed on 17, five and nine plant species, respectively. The results obtained suggest the importance of plants of the studied vegetation as reservoirs of predatory mites.
Descrição
Palavras-chave
Acari, Predator, Biological control, Acari, Predador, Controle biológico, Floresta
Como citar
Neotropical Entomology. Sociedade Entomológica do Brasil, v. 36, n. 5, p. 774-782, 2007.