Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1111/aje.12437
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Title (Primary) Converting forests to agriculture decreases body size of Carabid assemblages in Zambia
Author Chungu, D.; Stadler, J.; Brandl, R.
Source Titel African Journal of Ecology
Year 2018
Department BZF
Volume 56
Issue 2
Page From 216
Page To 224
Language englisch
Keywords abundance; body length; disturbances; ground beetles; size structure; Zambia
UFZ wide themes RU1;
Abstract Body size affects both intraspecific and interspecific competition. Land-use affects such interactions within assemblages of species and should, therefore, also change the size structure of these assemblages. In particular one expects a decrease of mean body size with disturbances. We compared interspecific size structure of carabid assemblages between agricultural fields (frequent disturbances) and forests in Zambia using pitfall traps operated across 1 year. Mean body length across species co-occurring within sites in agricultural fields was significantly smaller than in natural forests. Furthermore, in both habitats, we found evidence for ecological clustering in respect to body size, although in forests, body size differences between adjacent-sized species tended to be overdispersed. We also found a positive relationship between log10-transformed body length and log10-transformed activity abundance in forests, suggesting competitive asymmetries between large and small species. Overall, these observations suggest that the size structure of carabid assemblages depends on disturbances as well as competitive interactions. Such interactions seem to be, however, of lower importance within agricultural fields.
Persistent UFZ Identifier
Chungu, D., Stadler, J., Brandl, R. (2018):
Converting forests to agriculture decreases body size of Carabid assemblages in Zambia
Afr. J. Ecol. 56 (2), 216 - 224 10.1111/aje.12437