Abstract:
:Adults of the leaf beetle Plagiodera versicolora Laich, avoided previously injured shoots of Salix alba 'Tristis' in favor of nearby uninjured ones. The response was rapid and persisted for five days of study. During brief periods of observation, the vast majority of beetles engaged in behaviors other than locomotion such as feeding and resting. Furthermore, the proportions of beetles walking were similar on injured and uninjured shoots. It appears that under these experimental conditions previous injury did not greatly increase searching behavior of the beetles. Leaves on previously injured shoots received less subsequent herbivory than uninjured ones. Findings of these experiments are consistent with patterns of herbivory observed in the field and known reproductive responses of beetles to diets of injured leaves. These results provide new information toward understanding relatively low levels of herbivory on individual willow leaves associated with the feeding of P. versicolora.
journal_name
Oecologiajournal_title
Oecologiaauthors
Raupp MJ,Sadof CSdoi
10.1007/BF00380144subject
Has Abstractpub_date
1989-08-01 00:00:00pages
154-157issue
2eissn
0029-8549issn
1432-1939pii
10.1007/BF00380144journal_volume
80pub_type
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