Gafanhotos (Orthoptera, Acridoidea) em áreas de cerrados e lavouras na Chapada dos Parecis, Estado de Mato Grosso, Brasil

Revista Brasileira de Entomologia

Wanderlei Dias Guerra²  Patrícia Carla De Oliveira¹  José Roberto Pujol-luz¹ 

[1] ,Universidade de Brasília Instituto de Ciências Biológicas Departamento de ZoologiaBrasília DF ,Brasil

关键词: Brazilian savanna;    community structure;    composition;    Melanoplinae;    pest;    richness;    Cerrado;    composição;    estrutura de comunidade;    Melanoplinae;    praga;    riqueza;   

DOI  :  10.1590/S0085-56262012005000027

来源: SciELO

【 摘 要 】

Grasshoppers (Orthoptera, Acridoidea) in native savanna and crop areas in Chapada dos Parecis, Mato Grosso State, Brazil. We determined the composition and abundance of grasshoppers using sweep net sampling during three years at the Parecis Plateau, State of Mato Grosso, Brazil. The survey was done in areas with crops and native vegetation (savanna) with, respectively, 56 and 59 sites available in each environment. 3.031 individuals of grasshoppers were collected from 64 species distributed among the following families and subfamilies: Acrididae (49): Gomphocerinae (21), Ommatolampinae (10), Melanoplinae (6), Acridinae (4) Leptysminae (3), Copiocerinae (3), Proctolabinae (1) and Cyrtacanthacridinae (1); Romaleidae (1): Romaleinae (13) and Ommexechidae (1): Ommexechinae (2) and 1550 nymphs. The differences were significant between the number of species found in the savannas (61) and in cultived areas (16). However, the abundance of Acridoidea was significantly higher in crops than in savannas areas which was influenced mainly by two Acrididae's species: Baeacris punctulatus (Thunberg, 1824) and Orphulella punctata (De Geer, 1773) which accounted for 49.5% of the total individuals collected across the Parecis Plateau and, together, they account for 78.8% of recorded abundance in the cultived areas, both species being potential pests.

【 授权许可】

CC BY-NC-ND   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License