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Community Ecology

, Volume 7, Issue 1, pp 13–22 | Cite as

Pre-dispersal seed predation by Bruchidius villosus (Coleoptera, Bruchidae) in Laburnum anagyroides (Fabaceae, Genisteae)

  • Á. SzentesiEmail author
Article

Abstract

The pre-dispersal seed predator, Bruchidius villosus (Coleoptera, Bruchidae) destroyed ca. 8% of seeds of its major host-plant, Laburnum anagyroides (Fabaceae, Genisteae), a tree-like legume, in Hungary. However, almost 40% of the pods were infested by the beetle. Females did not show a resource concentration response: with increasing number of seeds per pod, the number of uninfested seeds also increased. A high seed abortion rate of 75% left an average of two full-grown seeds per pod. Females laid three-four times more eggs on pods than the number of full-grown seeds present in a pod. Despite this, a high level (ca. 15%) of egg parasitism and pod abortion that reached levels up to 50% on pods which already bore bruchid eggs, decreased the infestation level. Larval parasitisation rate of B. villosus by chalcids and braconids exceeded 30%.

Keywords

Bionomics Body size Bruchid Golden rain Hungary Oviposition Seed size Seed destruction 

Nomenclature for plants follows

Tutin et al. (1968) 

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© Akadémiai Kiadó, Budapest 2006

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Department of Systematic Zoology and EcologyEötvös Loránd UniversityBudapestHungary
  2. 2.Zoology Department, Plant Protection InstituteHungarian Academy of SciencesBudapestHungary

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