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| Content Provider | Springer Nature Link |
|---|---|
| Author | Soares, António O. Serpa, André |
| Copyright Year | 2006 |
| Abstract | Cage experiments were used to determine the minimum number of Aphis fabae Scopoli that females of the Azorean native ladybird beetle Coccinella undecimpunctata L. require per day to achieve maximum fecundity and to assess the effects of interference competition from conspecific and heterospecific [Harmonia axyridis (Pallas)] adult ladybirds on its growth and reproduction. The number of A. fabae at which females of C. undecimpunctata ate most aphids, achieved maximum reproduction and maintained their body weight, was 200. The presence of H. axyridis adults, unlike the presence of C. undecimpunctata, significantly affected the reproductive numerical response of C. undecimpunctata even though the resource was not in short supply. The results suggest that interference competition with heterospecifics may adversely affect the reproductive capacity of C. undecimpunctata. Based on previous results and those reported here, we suggest that the introduction of H. axyridis could endanger the population abundance and/or result in the competitive displacement of C. undecimpunctata from the Azorean ecosystem. |
| Starting Page | 37 |
| Ending Page | 43 |
| Page Count | 7 |
| File Format | |
| ISSN | 14383896 |
| Journal | Population Ecology |
| Volume Number | 49 |
| Issue Number | 1 |
| e-ISSN | 1438390X |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2006-11-16 |
| Publisher Place | Tokyo |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Coccinellidae Coccinella undecimpunctata Harmonia axyridis Growth Reproductive capacity Interference competition Forestry Behavioural Sciences Evolutionary Biology Plant Sciences Zoology Ecology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology, Evolution, Behavior and Systematics |
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