Taxonomic composition of Scarabaeinae dung beetles (Coleoptera: Scarabaeidae) inhabiting fluvial islands in the southern Brazilian Amazon

Autor:	Marcela Soares Gigliotti de Carvalho, Thiago J. Izzo, Wesley Dáttilo, Rafael V. Nunes, Fernando Z. Vaz-de-Mello
Rok vydání:	2014
Předmět:	Scarabaeidae geography geography.geographical_feature_category biology Ecology Amazon rainforest Fauna Biogeography biology.organism_classification Old-growth forest Insect Science Biological dispersal Scarabaeinae Ecology Evolution Behavior and Systematics Dung beetle
Zdroj:	Annales de la Société entomologique de France (N.S.). 50:407-413
ISSN:	2168-6351 0037-9271
DOI:	10.1080/00379271.2014.984955
Popis:	SummaryWe evaluated the taxonomic composition of Scarabaeinae dung beetles inhabiting fluvial islands in Juruena River, southern Brazilian Amazon. We sampled seven islands and two localities on each side of the mainland. We collected 41 species, all of which are widely distributed in the Amazon rainforest. Nine of these were exclusive to the islands, 24 were exclusively found on the mainland while eight species were found in both the islands and the mainland. The insular dung beetle fauna is mainly composed of typical species of varzea forest or edge forest/gap with the absence of Eurysternus and elements of primary forest in the Amazon. This result suggests that three main processes are shaping these communities: flooding and associated disturbance events, resource competition (presence of primates) and differential dispersal power among species. Depending on the context and age of island formation all these processes could have different levels of importance. Specific questions regarding these processes...
Databáze:	OpenAIRE
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