Document Detail

Feeding habits of chironomid larvae (Insecta: Diptera) from a stream in the Floresta da Tijuca, Rio de Janeiro, Brazil.
MedLine Citation:
PMID:  14509849     Owner:  NLM     Status:  MEDLINE    
Chironomids larvae are frequently one of the most abundant and diverse groups of insects in several kinds of aquatic environments. Also, they play a major role in the aquatic food webs, representing a major link among producers and secondary consumers. This work investigates the feeding behavior of the chironomid larvae present in the Rio da Fazenda, situated in the Parque Nacional da Tijuca, Rio de Janeiro, Brazil, between August 1994 and May 1995. Algae, fungi, pollen, leaf and wood fragments, animal remains, detritus and silt were the main gut contents found in the larvae studied. The main food item ingested by the larvae was detritus, except for the Stenochironomus whose main food source was leaf and wood fragments. Tanypodinae exhibited a large quantity of animal remains of several kinds in the diet. During the period studied it was observed that the diet of 16 genera (out of 24 studied) varied. Tanypodinae had mainly coarse particulate organic matter (> 1 mm) in the gut contents, while Chironominae and Orthocladiinae had fine particulate organic matter (< 1 mm).
A L Henriques-Oliveira; J L Nessimian; L F Dorvillé
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2003-08-15
Journal Detail:
Title:  Brazilian journal of biology = Revista brasleira de biologia     Volume:  63     ISSN:  1519-6984     ISO Abbreviation:  Braz J Biol     Publication Date:  2003 May 
Date Detail:
Created Date:  2003-09-26     Completed Date:  2003-12-23     Revised Date:  2007-09-06    
Medline Journal Info:
Nlm Unique ID:  101129542     Medline TA:  Braz J Biol     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  269-81     Citation Subset:  IM    
Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
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MeSH Terms
Chironomidae / physiology*
Food Habits*
Gastrointestinal Contents*
Larva / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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