Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/20445
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: History and complexity in tick-host dynamics: discrepancies between 'real' and 'visible' tick populations
Authors: Dobson, Andrew
Contact Email: andrew.dobson@stir.ac.uk
Keywords: Ticks
Tick-host dynamics
Population modelling
Demography
Issue Date: 19-May-2014
Publisher: BioMed Central Ltd
Citation: Dobson A (2014) History and complexity in tick-host dynamics: discrepancies between 'real' and 'visible' tick populations, Parasites and Vectors, 7, Art. No.: 231.
Abstract: Background: Numerical responses of ticks to changes in densities of their hosts can be complex and apparently unpredictable. Manipulations even of deterministic models can produce counter-intuitive results, including tick populations that either rise or fall under increasing host densities, depending on initial conditions. Methods: In this paper I use an established simulation model to demonstrate a wide range of numerical responses to different scenarios of host changes, and to examine the basic mechanisms that drive them. Results: The rate and direction of change of host densities affects the extent to which questing tick numbers reflect those of their hosts. Numerical responses differ profoundly between dynamic tick-host systems and those allowed to reach equilibrium. Conclusions: The key to understanding tick-host dynamics is to understand the difference between ‘real' and ‘visible' tick populations. An appreciation of the implications of this difference - and of the conditions that influence it - will benefit the effective interpretation of field data.
Type: Journal Article
URI: http://hdl.handle.net/1893/20445
DOI Link: http://dx.doi.org/10.1186/1756-3305-7-231
Rights: © 2014 Dobson; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. 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.
Affiliation: Biological and Environmental Sciences

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