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The structure of feeding behavior in a phytophagous insect (Hylobius abietis)

Fedderwitz, Frauke and Björklund, Niklas and Ninkovic, Velemir and Nordlander, Göran (2015). The structure of feeding behavior in a phytophagous insect (Hylobius abietis). Entomologia experimentalis et applicata. 155, 229-239
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Official URL: http://dx.doi.org/10.1111/eea.12302

Abstract

Analysis of the feeding behavior of animals using such a high temporal resolution that meals can be defined may improve our understanding of the mechanisms regulating feeding. Meals can be distinguished in an ethologically meaningful manner by using the ‘meal criterion’, the shortest non-feeding interval between feeding bouts recognized as meals. However, such a criterion has only been determined for a few insect species. Applying a recent method developed for assessing meal criteria for vertebrates, we determined the meal criterion for Hylobius abietis (L.) (Coleoptera: Curculionidae) based on data from video recordings of single individuals feeding on seedlings of Norway spruce, Picea abies (L.) Karst. (Pinaceae). The pine weevil is an economically important pest insect because it feeds on the stem bark of planted conifer seedlings. Weevils had 4-5 meals per day. Each meal lasted about 24 min during which about 13 mm2 of bark per meal were removed. Females had longer total meal durations and longer non-feeding intervals within meals than males. Girdling seedlings did not affect the weevils’ feeding properties. The size of meals was significantly correlated to the duration of non-feeding intervals before and after them. This study is one of few describing the feeding behavior of an insect at a temporal resolution that allows individual meals to be distinguished. With more meal-related data from insects available, differences in meal properties may be interpreted based on phylogeny, ecology, and physiology. Our results may also assist in the setup and interpretation of studies of plant-insect interactions, and facilitate the evaluation and development of methods to protect plants against herbivores.

Authors/Creators:Fedderwitz, Frauke and Björklund, Niklas and Ninkovic, Velemir and Nordlander, Göran
Title:The structure of feeding behavior in a phytophagous insect (Hylobius abietis)
Series/Journal:Entomologia experimentalis et applicata (0013-8703)
Year of publishing :2015
Depositing date:22 May 2015
Volume:155
Page range:229-239
Publisher:The Netherlands Entomological Society; John Wiley & Sons, Inc.
ISSN:0013-8703
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Agris subject categories.:K Forestry > K01 Forestry - General aspects
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Behavioural Sciences Biology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Agrovoc terms:feeding frequency, food intake, herbivore, Picea abies, Curculionidae, Pinaceae
Keywords:feeding intervals, food intake, herbivore, prandial correlation, short-term feeding, Coleoptera, Curculionidae, Picea abies, Pinaceae
URN:NBN:urn:nbn:se:slu:epsilon-e-2685
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2685
ID Code:12263
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Crop Production Ecology
(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: Frauke Fedderwitz
Deposited On:03 Jun 2015 10:03
Metadata Last Modified:16 Apr 2016 23:15

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