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Stadler, Bernhard ; Dixon, Anthony F. G. ; Kindlmann, Pavel:
Relative fitness of aphids : effects of plant quality and ants.
In: Ecology Letters.
Bd. 5
(2002)
Heft 2
.
- S. 216-222.
ISSN 1461-0248
DOI: https://doi.org/10.1046/j.1461-0248.2002.00300.x
Abstract
We investigated the response of four species of aphids (Metopeurum fuscoviride, Brachycaudus cardui, Aphis fabae, and Macrosiphoniella tanacetaria) on tansy (Tanacetum vulgare) to plant quality and attendance by an ant, Lasius niger. The aphids experienced one of four different environments for two consecutive generations. Ant attendance significantly affected the time needed to reach maximum fecundity only in M. fuscoviride and plant quality in M. fuscoviride and B. cardui. Maximum daily fecundity was positively affected by plant quality and the magnitude of the effect was inversely associated with the degree of myrmecophily. Ant-attendance only had a positive effect on maximum fecundity in the obligate myrmecophile, M. fuscoviride. The intrinsic rate of population increase, rm, on high quality plants, was lowest for the obligate myrmecophile, intermediate for the facultative myrmecophiles and highest for the unattended species. On high quality plants the fitness of M. fuscoviride was more adversely affected by the developmental stage of the plant and absence of ants than that of A. fabae or M. tanacetaria, which were able to maintain a high relative fitness in all the environments. The implications for aphids experiencing different degrees of ant-attendance and seasonal changes in plant quality are discussed.Neue Seite 1(pdf)
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER7543 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Forschungseinrichtungen Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 27 Nov 2015 07:30 |
| Letzte Änderung: | 31 Mai 2023 07:03 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/23284 |