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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Environmental constraints influencing survival of an African parasite in a north temperate habitat: effects of temperature on development within the host
Author(s): Tinsley, Richard C
York, Jenny E
Stott, Lucy C
Everard, Amy L E
Chapple, Sara J
Tinsley, M C
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Keywords: Xenopus
alien species introductions
global warming
Host-parasite relationships.
Issue Date: Jul-2011
Date Deposited: 24-Aug-2011
Citation: Tinsley RC, York JE, Stott LC, Everard ALE, Chapple SJ & Tinsley MC (2011) Environmental constraints influencing survival of an African parasite in a north temperate habitat: effects of temperature on development within the host. Parasitology, 138 (8), pp. 1039-1052.
Abstract: The monogenean Protopolystoma xenopodis has been established in Wales for >40 years following introduction with Xenopus laevis from South Africa. This provides an experimental system for determining constraints affecting introduced species in novel environments. Parasite development post-infection was followed at 15, 20 and 25 °C for 15 weeks and at 10 °C for51 year and correlated with temperatures recorded inWales. Development was slowed/arrested at410 °C which reflects habitat conditions for >6 months/year. There was wide variation in growth at constant temperature (body size differing by >10 times) potentially attributable in part to genotype-specific host-parasite interactions. Parasite density had no effect on size but host sex did: worms in males were 1·8 times larger than in females. Minimum time to patency was 51 days at 25 °C and 73 days at 20 °C although some infections were still not patent at both temperatures by 105 days p.i. In Wales, fastest developing infections may mature within one summer (about 12 weeks), possibly accelerated by movements of hosts into warmer surface waters. Otherwise, development slows/stops in October–April, delaying patency to about 1 year p.i., while wide variation in developmental rates may impose delays of 2 years in some primary infections and even longer in secondary infections.
DOI Link: 10.1017/S0031182011000424
Rights: Published in Parasitology. Copyright © Cambridge University Press 2011.; This paper has been accepted for publication and will appear in a revised form, subsequent to editorial input by Cambridge University Press, in Parasitology, Volume 138, Issue 8, (July 2011), pp. 1039 - 1052, published by Cambridge University Press, Copyright © Cambridge University Press 2011.

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