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dc.contributor.authorBasset, Yvesen_US
dc.contributor.authorF. Mavoungou, jaquesen_US
dc.contributor.authorMikissa, Jean Brunoen_US
dc.contributor.authorMissa, Oliveren_US
dc.contributor.authorE. Miller, Scotten_US
dc.contributor.authorKitching, Rogeren_US
dc.contributor.authorAlonso, Alfonsoen_US
dc.description.abstractArthropods were monitored by local parataxonomists at 12 sites of increasing anthropogenic disturbance (old and young secondary forests, savanna and cultivated gardens) at Gamba, Gabon. We report on the discriminatory power of different data sets with regard to the classification of sites along the disturbance gradient, using preliminary data accounting for 13 surveys and 142425 arthropods collected by Malaise, pitfall and yellow-pan traps. We compared the performance of different data sets. These were based upon ordinal, familial and guild composition, or upon 22 target taxa sorted to morphospecies and either considered in toto or grouped within different functional guilds. Finally we evaluated lsquopredictor setsrsquo made up of a few families or other target taxa, selected on the basis of their indicator value index. Although the discriminatory power of data sets based on ordinal categories and guilds was low, that of target taxa belonging to chewers, parasitoids and predators was much higher. The data sets that best discriminated among sites of differing degrees of disturbance were the restricted sets of indicator families and target taxa. This validates the concept of predictor sets for species-rich tropical systems. Including or excluding rare taxa in the analyses did not alter these conclusions. We conclude that calibration studies similar to ours are needed elsewhere in the tropics and that this strategy will allow to devise a representative and efficient biotic index for the biological monitoring of terrestrial arthropod assemblages in the tropics.en_US
dc.publisherKluwer Academic Publishersen_US
dc.publisher.placeDordrecht, NLen_US
dc.relation.ispartofjournalBiodiversity and Conservationen_US
dc.subject.fieldofresearchHISTORY AND ARCHAEOLOGYen_US
dc.titleDiscriminatory power of different arthropod data sets for the biological monitoring of anthropogenic disturbance in tropical forestsen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright Kluwer 2004. The original publication is available at www.springerlink.comen_US
gro.hasfulltextNo Full Text

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