NDLI: Indirect effects mediated by compensatory shoot growth on subsequent generations of a willow spittlebug

Content Provider	Springer Nature Link
Author	zawa, A. Ohgushi, T.
Copyright Year	2002
Abstract	We investigated whether oviposition by the spittlebug Aphrophora pectoralis on Salix miyabeana and S. sachalinensis in fall 1998 affected shoot growth pattern and further oviposition by subsequent generations of the willow spittlebug in early September 1999 and 2000. Spittlebug oviposition enhanced the growth of current-year shoots on 1-year shoots with oviposition (O-shoots) compared to those without oviposition (N-shoots): the length of current-year shoots increased in 1999 and 2000, the number of current-year shoots increased in 2000 despite a decrease in 1999, and the shoot abscission rate decreased during the 1999 winter. The number of egg masses per current-year shoot was greater on O-shoots than on N-shoots in 1999, and this tendency was reinforced in 2000. The total number of egg masses was greater on O-shoots than on N-shoots in 2000, although there was no significant difference in 1999. There is thus a positive feedback system between spittlebug attack and compensatory growth on willow.
Starting Page	0235
Ending Page	0239
Page Count	5
File Format	PDF
ISSN	14383896
Journal	Population Ecology
Volume Number	44
Issue Number	3
e-ISSN	1438390X
Language	English
Publisher	Springer-Verlag
Publisher Date	2002-12-01
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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Indirect effects mediated by compensatory shoot growth on subsequent generations of a willow spittlebug