Skip to main content

IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (0): add | show Print this page

Parasite escape through trophic specialization in a species flock
Hablützel, P. I.; Vanhove, M.P.M.; Deschepper, P.; Grégoir, A.F.; Roose, A.K.; Volckaert, F.A.M.; Raeymaekers, J.A.M. (2017). Parasite escape through trophic specialization in a species flock. J. Evolution. Biol. 30(7): 1437-1445. https://dx.doi.org/10.1111/jeb.13111
In: Journal of Evolutionary Biology. European Society for Evolutionary Biology (ESEB): Basel. ISSN 1010-061X; e-ISSN 1420-9101, more
Peer reviewed article  

Available in  Authors 

Keywords
    Acanthocephala [WoRMS]
    Fresh water
Author keywords
    Acanthocephala;adaptive radiation;fish;host–parasite interaction;Lake Tanganyika;speciation

Authors  Top 
  • Hablützel, P. I., more
  • Vanhove, M.P.M., more
  • Deschepper, P., more
  • Grégoir, A.F., more
  • Roose, A.K., more
  • Volckaert, F.A.M., more
  • Raeymaekers, J.A.M., more

Abstract
    Adaptive radiation occurs when species diversify rapidly to occupy an array of ecological niches. As opportunities for parasite infection and transmission may greatly vary among these niches, adaptive radiation is expected to be associated with a turnover of the parasite community. As major agents of natural and sexual selection, parasites may play a central role in host diversification. The study of parasite turnover may thus be of general relevance and could significantly improve our understanding of adaptive radiation. In this study, we examined the parasite faunas of eleven species belonging to the tribe Tropheini, one of several adaptive radiations of cichlid fishes in Lake Tanganyika. The most parsimonious ancestral foraging strategy among the Tropheini is relatively unselective substrate browsing of aufwuchs. Several lineages evolved more specialized foraging strategies, such as selective combing of microscopic diatoms or picking of macro-invertebrates. We found that representatives of these specialized lineages bear reduced infection with food-web-transmitted acanthocephalan helminths, but not with parasites with a direct life cycle. Possibly, the evolution of selective foraging strategies entailed reduced ingestion of intermediate invertebrate hosts of acanthocephalans. We conclude that some species belonging to the Tropheini virtually escape acanthocephalan infection as a by-product of trophic specialization.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors