NDLI: Plant regrowth response to a stem-boring insect: a swift moth-willow system

Content Provider	Springer Nature Link
Author	Utsumi, Shunsuke Ohgushi, Takayuki
Copyright Year	2007
Abstract	To examine plastic willow regrowth response to herbivory, we studied the effect of a boring insect, the swift moth Endoclita excrescens (Hepialidae: Lepidoptera), which does not remove apical meristems, on shoot growth in three willow species—Salix gilgiana, S. eriocarpa, and S. serissaefolia−by direct observations and experiments in the field. We hypothesized that the stem-boring could initiate new lateral bud activation, and result in secondary shoot regrowth without the removal of the primary apical meristems. There were significantly more lateral shoots on naturally attacked than unattacked stems, and a significant positive correlation between lateral shoot density and the number of swift moth tunnels per tree was observed for all three willow species. Artificial boring, and larval infestation, resulted in an increase in the number of lateral shoots, but did not affect growth of current-year shoots. The length of lateral shoots differed between species, being significantly longer in S. gilgiana than S. eriocarpa and S. serissaefolia. The results of this study show that compensatory regrowth can result even if herbivory does not remove the apical meristem. We argue that this type of plant compensatory response is probably widespread, given that the stem-boring is a common feeding type of insect herbivores.
Starting Page	241
Ending Page	248
Page Count	8
File Format	PDF
ISSN	14383896
Journal	Population Ecology
Volume Number	49
Issue Number	3
e-ISSN	1438390X
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-03-29
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plant–animal interaction Compensatory regrowth Induced plant response Lateral shoot Salix Forestry Behavioural Sciences Evolutionary Biology Plant Sciences Zoology Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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