Host specialization and species richness of fruit flies (Diptera : Tephritidae) in a New Guinea rain forest

0001226 - ENTU-I 2006 RIV GB eng J - Journal Article
Novotný, Vojtěch - Clarke, A. R. - Drew, R. A. I. - Balagawi, S. - Clifford, B.
Host specialization and species richness of fruit flies (Diptera : Tephritidae) in a New Guinea rain forest.
[Hostitelská specializace a druhová rozmanitost vrtulí (Diptera: Tephritidae) v novoguinejském deštném lese.]
Journal of Tropical Ecology. Roč. 21, - (2005), s. 67-77. ISSN 0266-4674. E-ISSN 1469-7831
R&D Projects: GA AV ČR(CZ) IAA6007106; GA ČR(CZ) GD206/03/H034; GA ČR(CZ) GA206/04/0725; GA MŠMT(CZ) ME 646
Grant - others:Australian Centre for International Agricultural Research(AU) CS2/1996/225; US National Science Foundation(US) DEB-02-11591
Institutional research plan: CEZ:AV0Z50070508
Keywords : beta-diversity * fruits * herbivore communities
Subject RIV: EG - Zoology
Impact factor: 1.013, year: 2005

Frugivorous dacine fruit flies were studied in a lowland tropical rain forest in PapuaNewGuinea to determine their host specificity, abundance, and the number of species attacking various plant species. Plant species hosted 0–3 fruit fly species at median (1–3 quartile) densities of 1 (0–17) fruit flies per 100 fruits. Fruit flies were mostly specialized to a single plant family (83% species) and within each family to a single genus (88% species), while most of the species (66%) were able to feed on >1 congeneric plant species. The local species pool was estimated at 152±32 (±SE) fruit fly species. Forty per cent of all taxonomically described species known from Papua New Guinea were reared or trapped in our study area. Such a high proportion indicates low beta-diversity of fruit flies. Steiner traps were highly efficient in sampling the lure-responsive fruit fly species as they re-collected 84% of all species trapped in the same area 5 years before.

Tato práce studovala hostitelskou specializaci a druhovou rozmanitost plodožravých much (vrtulí) v tropickém deštném lese na Nové Guineji. Většina druhů byla specializována na rostlinné rody, nikoliv druhy. Lokální diverzita byla stanovena na 152 druhů, což je značný podíl všech druhů známých z Nové Guineje. To ukazuje na nízkou beta diverzitu této skupiny v tropických lesích.
Permanent Link: http://hdl.handle.net/11104/0109586