Drosophilidae (Diptera) associated to fungi: differential use of resources in anthropic and Atlantic Rain Forest areas

Iheringia. Série Zoologia

Marco S Gottschalk²  Luís Bizzo¹  Jonas S Döge²  Marcos S Profes¹  Paulo R. P Hofmann¹  Vera L. S Valente² 

[1] ,Universidade Federal do Rio Grande do Sul Instituto de Biociências Departamento de GenéticaPorto Alegre RS ,Brazil

关键词: Drosophila;    mycophagous insects;    feeding sites;    breeding sites;    Drosophila;    insetos micófagos;    sítios de alimentação;    sítios de oviposição;   

DOI  :  10.1590/S0073-47212009000400016

来源: SciELO

【 摘 要 】

This study investigates the Drosophilidae species associated to fruiting bodies of fungi in forested and anthropized environments of the Atlantic Rain Forest Biome, in south and southeastern Brazil. We collected samples of imagoes flying over and emerging from fruiting bodies of species of five fungi families, in six collection sites. We obtained 18 samples, from which emerged 910 drosophilids of 31 species from the genera Drosophila Fallen, 1823, Hirtodrosophila Duda, 1923, Leucophenga Mik, 1886, Mycodrosophila Oldenberg, 1914, Scaptomyza Hardy, 1849, Zaprionus Coquillett, 1901 and Zygothrica Wiedemann, 1830. The Drosophila species collected on fungi, as well as Zaprionus indianus Gupta, 1970, had previously been recorded colonizing fruits, demonstrating their versatility in resource use. Most of these species belong to the immigrans-tripunctata radiation of Drosophila. Our records expands the mycophagous habit (feeding or breeding on fungi) to almost all species groups of this radiation in the Neotropical region, even those supposed to be exclusively frugivorous. Assemblages associated to fungi of forested areas were more heterogeneous in terms of species composition, while those associated to fungi of anthropized areas were more homogeneous. The drosophilids from anthropized areas were also more versatile in resource use.

【 授权许可】

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