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Kindlmann, Pavel ; Hullé, Maurice ; Stadler, Bernhard:
Timing of dispersal: effects of ants on aphids.
In: Oecologia.
Bd. 152
(2007)
Heft 4
.
- S. 625-631.
ISSN 1432-1939
DOI: https://doi.org/10.1007/s00442-007-0684-4
Abstract
Mutualists can affect many life history traits of their partners, but it is unclear, how this translates into population dynamics of the latter. Ant-aphid associations are ideal for studying this question, as ants affect aphids, both positively (e.g., protection against natural enemies) and negatively (e.g., reduction of potential growth rates). The unresolved question is whether these effects, which were observed at the level of individuals and under controlled environmental conditions, have consequences at the population level. On estimating aerial aphid populations by using weekly suction trap data spanning up to 22 years from different locations in France we show that in ant-attended aphid species long distance dispersal occurs significantly later, but the year-to-year changes in the peak number of migrants are not significantly lower compared to non-attended aphids. Host alternation had the same retarding effect on dispersal like ant attendance. We discuss the delay in the timing of dispersal in ant attended aphids and potential costs that arise in mutualistic systems.
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER39464 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 07 Aug 2015 06:59 |
| Letzte Änderung: | 07 Aug 2015 06:59 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/17778 |