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. 2017 Mar 27;10:162. doi: 10.1186/s13071-017-2097-5

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 4 — The effects of varying the control efficiency on the adult midge population at Preston. The midge model is run with varying values of control efficiency and the total annual adult (nulliparous and parous) population is plotted, using the graduated colour scale (a). The transect corresponding to when the control efficiency is zero corresponds to the red line in Fig. 3b. In b, the average of the total adult abundances for each value of control efficiency is shown