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|Appears in Collections:||Biological and Environmental Sciences Journal Articles|
|Peer Review Status: ||Refereed|
|Title: ||Wipfelkrankheit: Modification of host behaviour during baculoviral infection|
|Author(s): ||Goulson, Dave|
|Contact Email: ||email@example.com|
nuclear polyhedrosis virus
|Issue Date: ||Jan-1997|
|Citation: ||Goulson D (1997) Wipfelkrankheit: Modification of host behaviour during
baculoviral infection, Oecologia, 109 (2), pp. 219-228.|
|Abstract: ||Infection with an endoparasite frequently alters host behaviour. This study
provides the first quantification of larval behaviour in a baculovirus/
Lepidoptera system, and attempts to assess the ecological consequences of
behavioural modification during infection. Larvae of the moth Mamestra brassicae
(Lepidoptera: Noctuidae) exhibited higher rates of dispersal in the laboratory
and field when infected with Mamestra brassicae nuclear polyhedrosis virus
(MbNPV) than did uninfected larvae. They adopted positions at death which were
not characteristic of healthy larvae, climbing higher on the foodplant and onto
the top and edge of leaves. The horizontal and vertical distribution of virus
following larval lysis and the effects of rainfall on this distribution were
assessed for comparison with the distributions of healthy and infected larvae.
Exposure to rainfall increased the infectivity of vegetation in bioassays.
Alternative explanations for the evolutionary origins of behavioural
modification are considered. I suggest that the behavioural changes observed are
most likely to benefit the virus. In particular, climbing prior to death is
likely to result in contamination of more foliage with virus particles than
would otherwise occur by increasing exposure of cadavers to rainfall. Thus it
may profoundly influence horizontal transmission and the dynamics of the host-
|Type: ||Journal Article|
|DOI Link: ||http://dx.doi.org/10.1007/s004420050076|
|Rights: ||The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.|
|Affiliation: ||Biological and Environmental Sciences|
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