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Agonistic interactions between nymphs of Lycorma delicatula (Hemiptera: Fulgoridae)

Title
Agonistic interactions between nymphs of Lycorma delicatula (Hemiptera: Fulgoridae)
Authors
Choi D.Kim K.-H.Jang Y.
Ewha Authors
장이권
SCOPUS Author ID
장이권scopus
Issue Date
2011
Journal Title
Journal of Asia-Pacific Entomology
ISSN
1226-8615JCR Link
Citation
vol. 14, no. 1, pp. 21 - 25
Indexed
SCIE; SCOPUS; KCI WOS scopus
Abstract
The nymphs of Lycorma delicatula typically aggregate on tree branches for feeding. We studied agonistic interactions between nymphs in the field and investigated the effects of prior residence and body size on contest outcome. Resident nymphs maintained positions on tree branches and engaged in feeding, whereas intruding nymphs moved along tree branches. When an intruder approached, the resident typically raised its front legs as a threat posture. The intruder would either move away or palpate the resident, and the resident often lowered its body when palpated. The intruder would then attempt to shake the resident back and forth, with the number of attempts varying from one to several. The resident either maintained its position or fled. After a contest, the winner was determined to be the one occupying the contested position on the branch. The resident nymphs won 84.2% of the agonistic encounters, and the nymphs with larger body size won 63.2% of the agonistic encounters. Logistic regression analysis revealed that prior residence was a significant factor for the contest outcome, but body size was not. We discuss the hypotheses for the dominance of the residents in agonistic interactions between nymphs of L. delicatula. © 2010 Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society.
DOI
10.1016/j.aspen.2010.11.010
Appears in Collections:
자연과학대학 > 생명과학전공 > Journal papers
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