Visiting communities of extrafloral nectaries in a subtropical Chinese forest
Aktivität: Vorträge und Gastvorlesungen › Konferenzvorträge › Forschung
Michael Staab - Ko-Autor*in
Extrafloral nectaries (EFNs) are found in a wide range of plant species, particularly in the tropics and subtropics. Extrafloral nectar (EF) attracts a diverse community of consuming insects. Particularly ants are well known to feed on EF. Up to now, only few studies compared diversity, abundance and structure of visiting communities between different plant species bearing EFN.
We observed the overall insect community visiting EFN of five tree species in an early successional subtropical forest in South‐East China from April to June 2012. The field sites are part of the BEF‐China tree biodiversity experiment. Altogether, 224 hours of observation time, 140 minutes for every of the 96 trees, revealed a diverse insect community, with over 50 species visiting EFNs. In general, ants made up about 70% of individuals, but a high species diversity of Diptera, Coleoptera, and other Hymenoptera were also visiting EFNs. There were profound differences in the visiting communities between the tree species, both in abundance, diversity and community composition.
We are currently analysing if these insect community responses are mainly driven by morphological traits or the composition of various sugars and amino acids of the EF. Our results will help to answer the question what traits structure visiting communities on EFN plants in general.
We observed the overall insect community visiting EFN of five tree species in an early successional subtropical forest in South‐East China from April to June 2012. The field sites are part of the BEF‐China tree biodiversity experiment. Altogether, 224 hours of observation time, 140 minutes for every of the 96 trees, revealed a diverse insect community, with over 50 species visiting EFNs. In general, ants made up about 70% of individuals, but a high species diversity of Diptera, Coleoptera, and other Hymenoptera were also visiting EFNs. There were profound differences in the visiting communities between the tree species, both in abundance, diversity and community composition.
We are currently analysing if these insect community responses are mainly driven by morphological traits or the composition of various sugars and amino acids of the EF. Our results will help to answer the question what traits structure visiting communities on EFN plants in general.
10.09.2012 → 14.09.2012
Veranstaltung
42. Jahresversammlung der Gesellschaft für Ökologie - GfÖ 2012: From Basic Ecology to the Challenges of Modern Society
10.09.12 → 14.09.12
Lüneburg , DeutschlandVeranstaltung: Konferenz
- Ökosystemforschung