Avaliação rápida da diversidade de formigas em sistemas de uso do solo no sul da Bahia / Rapid evaluation of ant diversity in land use systems in southern Bahia, Brazil
Neotrop. entomol
; 39(4): 464-469, July-Aug. 2010. ilus, graf, tab
Article
em Pt
| LILACS
| ID: lil-558829
Biblioteca responsável:
BR1.1
ABSTRACT
We aimed to compare the soil ant diversity in different land use systems from Atlantic Forest area, in Southern Bahia state, Brazil. The ants were sampled in 16 sites two primary forest sites (un-logged forest); three young secondary forests (<8 years old); three intermediate secondary forests (8-20 years old); three old secondary forests (>20 years old); three Eucalyptus grandis plantations (3-7 years old), and two introduced pastures. Each site was sampled in three sampling points 15 m apart, and distant over 50 m from the site edge. In each sampling point we gathered the litter from a 1 m² and extracted the ants with Winkler extractors during 48h. We found 103 ant species from 29 genera and eight subfamilies. The five richest genera were Pheidole (19 species), Solenopsis (8), Apterostigma (10), Hypoponera (7) e Paratrechina (5). The highest ant richness density was found in the primary forest (7.4 species/sample; S = 37; n = 5); followed by the old secondary forest (5.33 species/sample; S = 48; n = 9); young secondary forest (5.25 species/sample; S = 42, n = 8); eucalyptus plantation (4.22 species/sample; S = 38, n = 9), intermediate secondary forest (3.5 species/sample; S = 35, n = 10, and introduced pasture (2.67 species/sample; S = 16, n = 6). The ecosystems with higher structural complexity showed the highest ant richness density by sample. Therefore, in the Atlantic Forest region, the eucalyptus plantation is a better alternative of land use to conserve the ant biodiversity than pastures, and quite similar to native secondary forests in ant community characteristics.
Palavras-chave
Texto completo:
1
Base de dados:
LILACS
Assunto principal:
Formigas
/
Comportamento Animal
Limite:
Animals
País como assunto:
America do sul
/
Brasil
Idioma:
Pt
Ano de publicação:
2010
Tipo de documento:
Article