Can monophagous specialists mediate host plant choices in generalist planthoppers (Hemiptera: Delphacidae)?

Dittrich, Alex D. K. and Helden, Alvin J. (2020) Can monophagous specialists mediate host plant choices in generalist planthoppers (Hemiptera: Delphacidae)? Ecological Entomology, 45 (6). pp. 1509-1512. ISSN 1365-2311

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Official URL: http://dx.doi.org/10.1111/een.12929

Abstract

1. A preference experiment was set up with two planthopper species (Hemiptera: Delphacidae) to test the influence of competition on host plant choice. 2. The delphacid Javesella pellucida was chosen as a generalist and the rarer Ribautodelphax imitans as a monophagous specialist, which feeds on the grass, tall fescue Schedonorus arundinaceus. 3. In the absence of the specialist, the generalist showed a marked preference for tall fescue. In some experiments, however, the introduction of the specialist resulted in a shift of preference to an alternative plant if the specialist was established prior to the introduction of the generalist. 4. This experiment supports the hypothesis that specialist herbivores can potentially alter the host plant choices of generalists, which may lead to differing host plant use patterns in insect communities.

Item Type: Journal Article
Keywords: Auchenorrhyncha, competition, insect–plant interactions, planthopper, rarity
Faculty: Faculty of Science & Engineering
SWORD Depositor: Symplectic User
Depositing User: Symplectic User
Date Deposited: 24 Aug 2020 10:34
Last Modified: 09 Sep 2021 18:52
URI: https://arro.anglia.ac.uk/id/eprint/705787

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