2006
Trophic levels and functional feeding groups of macroinvertebrates in neotropical streams
TOMANOVÁ, Sylvie; Edgar GOITIA and Jan HELEŠICBasic information
Original name
Trophic levels and functional feeding groups of macroinvertebrates in neotropical streams
Name in Czech
Trofické úroveň a funkční skupiny bezobratlých v neotropických tocích
Authors
TOMANOVÁ, Sylvie (203 Czech Republic, guarantor); Edgar GOITIA (68 Plurinational State of Bolivia) and Jan HELEŠIC (203 Czech Republic)
Edition
Hydrobiologia, Netherlands, Kluwer Academic Publishers, 2006, 0018-8158
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10600 1.6 Biological sciences
Country of publisher
Netherlands
Confidentiality degree
is not subject to a state or trade secret
Impact factor
Impact factor: 1.049
RIV identification code
RIV/00216224:14310/06:00015591
Organization unit
Faculty of Science
UT WoS
000234198800020
Keywords in English
neotropical aquactic insect; gut contents analysis; functional groups; fuzzy coding
Tags
International impact, Reviewed
Changed: 14/5/2007 15:42, Mgr. Sylvie Tomanová, Ph.D.
In the original language
Feeding strategies are typical traits reflecting the adaptation of species to environmental conditions. This concept is currently developed in some water quality systems (e.g. Index of Trophic completeness) and the structure of functional feeding groups (FFGs) could form part of a unified measure across communities differing in taxonomic composition. However, in South America, information about the FFG classification of invertebrates in streams is almost absent and existing studies using FFG structure follows classification from North America. But even taxonomically related species may have different diets in tropical and temperate areas and therefore, studies about FFG structure in neotropics could be biased. For this reason, we determined diet composition, trophic level and FFGs, using gut contents analysis and mouthpart observations of 49 macroinvertebrate taxa (mostly at genus level) from neotropical streams. We observed that practically all macroinvertebrates fed upon fine detritus which indicates the importance of this food resource in neotropical streams. As the assignment to a single FFG does not accurately reflect the functional profile of taxa, we transcribed the affinity of taxa to each FFG using fuzzy codes. Finally, we published the coding of diet composition and FFG of the taxa examined, which could be used in future community analyses of lotic ecosystems in the Neotropical zone.
In Czech
Potravní strategie jsou typické vlastnosti odrážející adaptaci organismů na podmínky prostředí. V článku jsou publikována první souhrná data o zařazení vodních bezobratlých neotropické oblasti do trofických skupin.
Links
| GA206/02/0902, research and development project |
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| MSM0021622416, plan (intention) |
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