Dynamics of a host–parasitoid interaction clarified by modelling and DNA sequencing

Show full item record



Permalink

http://hdl.handle.net/10138/317021

Citation

Mutanen , M , Ovaskainen , O , Várkonyi , G , Itämies , J , Prosser , S W J , Hebert , P D N & Hanski , I 2020 , ' Dynamics of a host–parasitoid interaction clarified by modelling and DNA sequencing ' , Ecology Letters , vol. 23 , no. 5 , pp. 851-859 . https://doi.org/10.1111/ele.13486

Title: Dynamics of a host–parasitoid interaction clarified by modelling and DNA sequencing
Author: Mutanen, Marko; Ovaskainen, Otso; Várkonyi, Gergely; Itämies, Juhani; Prosser, Sean W. J.; Hebert, Paul D. N.; Hanski, Ilkka
Contributor: University of Helsinki, Organismal and Evolutionary Biology Research Programme
University of Helsinki, Ecology and Evolutionary Biology
Date: 2020-05
Language: eng
Number of pages: 9
Belongs to series: Ecology Letters
ISSN: 1461-023X
URI: http://hdl.handle.net/10138/317021
Abstract: Abstract It has been hypothesised that the 2-year oscillations in abundance of Xestia moths are mediated by interactions with 1-year Ophion parasitoid wasps. We tested this hypothesis by modelling a 35-year time series of Xestia and Ophion from Northern Finland. Additionally, we used DNA barcoding to ascertain the species diversity of Ophion and targeted amplicon sequencing of their gut contents to confirm their larval hosts. Modelling of the time-series data strongly supported the hypothesised host?parasitoid dynamics and that periodic occurrence of Xestia moths is mediated by Ophion. DNA barcodes revealed that Ophion included five species rather than just one while targeted amplicon sequencing verified that Ophion does parasitise Xestia. At least one Ophion species employs 1-year Syngrapha interrogationis as an alternate host, but it did not detectably affect Xestia?Ophion dynamics. We also demonstrate the previously unrecognised complexity of this system due to cryptic parasitoid diversity.
Subject: 1181 Ecology, evolutionary biology
DNA barcoding
MAPL
Ophion
periodic occurrence
population dynamics
Xestia
POPULATION
HYMENOPTERA
FLIES DIPTERA
LEPIDOPTERA
NOCTUIDAE
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
ele.13486.pdf 1017.Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record