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| Content Provider | Springer Nature Link |
|---|---|
| Author | Andersson, Petter Hambäck, Peter A. |
| Copyright Year | 2011 |
| Abstract | Herbivorous insects are commonly faced with host plants being distributed in scattered patches across a landscape. Immigration rates into habitat patches may strongly depend on the sensory cues used in the patch location process, and immigration rates of insects can be predicted based on the scaling of sensory cues. Here, we tested recent estimates of the scaling of olfactory information to patch size, which predicts a scaling coefficient ζ ≈ −0.5 (A $^{ ζ }$, where A = patch size, ζ = scaling coefficient). We predicted that immigration rates of olfactory searching insects into patches of different sizes should scale according to the estimated slope. We investigated attraction of the weevils Cionus tuberculosus and Cionus scrophulariae to odors from figwort Scrophularia nodosa and quantified immigration rates of weevils into differently sized patches. We also investigated oviposition rates of the sawfly Tenthredo scrophulariae. The slope in the regression between density and patch size for herbivores was then compared with the predicted scaling coefficient. Using olfactometers, we found that weevils were attracted to figwort odors. Weevil densities were significantly affected by patch size, and the slope in the relationship between density and patch size was ζ = −0.53. The slope in the relationship between larval densities of sawflies and patch size was less negative with a slope of ζ = −0.15, indicating differences in search behavior compared with the weevils. The density–patch size relationship for the weevils closely matched the predicted slope and supported the previous estimations of the scaling of olfactory information to patch size. |
| Starting Page | 269 |
| Ending Page | 277 |
| Page Count | 9 |
| File Format | |
| ISSN | 18728855 |
| Journal | Arthropod-Plant Interactions |
| Volume Number | 5 |
| Issue Number | 4 |
| e-ISSN | 18728847 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2011-07-08 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Olfactory search Density–patch size relationships Patch size Cionus Species traits Scrophularia nodosa Ecology Entomology Plant Pathology Plant Sciences Invertebrates Behavioural Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Ecology, Evolution, Behavior and Systematics Insect Science Agronomy and Crop Science |
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