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Effect of forest stand type on host plant quality and direct and indirect effects on pine sawfly performance

Bellone, Davide and Björkman, Christer and Schmidt, Axel and Gershenzon, Jonathan and Klapwijk, Maartje (2021). Effect of forest stand type on host plant quality and direct and indirect effects on pine sawfly performance. Agricultural and Forest Entomology. 23 , 163-172
[Research article]

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Abstract

Observed lower levels of herbivory in mixed compared with monoculture stands have been hypothesized to depend on top-down forces, through higher predation pressure by natural enemies or through bottom-up mechanisms through plant quality effects on herbivore performance. In this study, we compared the performance measured as host plant induced mortality, cocoon weight, and predation mortality of the European pine sawflyNeodiprion sertifer(Geoffroy) (Hymenoptera, Diprionidae) in mixed and monoculture forest stands. We did not observe a difference in host plant induced mortality, cocoon weight, or predation mortality between mixed and monoculture forest stands. We did find an effect of local conditions around each experimental tree on pine sawfly performance. For example, the nitrogen content of pine needles is negatively affected by the proportion of pine around the experimental tree, which in turn increases the survival of sawfly larvae. The results suggest that local conditions around individual trees are more important for the performance of the European pine sawfly than stand type,i.e.mixed or monoculture plant stands. We conclude that the ongoing trend for diversification within commercial forestry calls for more research where the effects of both bottom-up and top-down effects are studied at several spatial scales.

Authors/Creators:Bellone, Davide and Björkman, Christer and Schmidt, Axel and Gershenzon, Jonathan and Klapwijk, Maartje
Title:Effect of forest stand type on host plant quality and direct and indirect effects on pine sawfly performance
Series Name/Journal:Agricultural and Forest Entomology
Year of publishing :2021
Volume:23
Page range:163-172
Number of Pages:10
Publisher:WILEY
ISSN:1461-9555
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:cocoon weight, herbivore performance, mixed forest, resin acid, secondary metabolites
URN:NBN:urn:nbn:se:slu:epsilon-p-108642
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108642
Additional ID:
Type of IDID
DOI10.1111/afe.12415
Web of Science (WoS)000579471900001
ID Code:22956
Faculty:S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:07 Apr 2021 08:23
Metadata Last Modified:07 Apr 2021 08:31

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