The ecology and evolution of parasitism in terrestrial parasitengone mites (Actinotrichida: Prostigmata)
AbstractThe cohort Parasitengona is among the most diverse mite taxa and traditionally includes Hydrachnidia and Trombidia, the so-called terrestrial Parasitengona. Their protelean life style resulting from the different feeding strategies of their larvae and post-larval stages, combined with the heteromorphism of their developmental stages, favours describing new species on the basis of selected stages and represents a major obstacle when trying to unravel the phylogenetic relationships within the group. The number of nominal species vastly exceeds the number of actual ones because of the system of so-called double systematics, which is independent for the larval and heteromorphic post-larval stages; the great majority of species are known exclusively as larvae. The important apomorphies of Parasitengona include calyptostatic proto- and tritonymph and the switching of originally predatory larvae to parasitism. Due to their association with mobile hosts, the larvae of Parasitengona are the main stages prone to dispersal. Terrestrial Parasitengona include three distinct superfamilies: Calyptostomatoidea, Erythraeoidea and Trombidioidea; because of the great structural and ecological diversification, their representatives constitute good objects of evolutionary studies. The concept of phylogenetic relationships between family-level as well as subordinate taxa is in a state of flux. The contradictory nature of life history characters results in an array of evolutionary trade-offs, and renders phylogenic reconstruction difficult. The present study aims at a review of life strategies in terrestrial parasitengone mites, which facilitate the success of parasitism in an evolutionary sense.
|Journal series||Annals of Parasitology, ISSN 2299-0631, e-ISSN 2300-6706, (B 15 pkt)|
|Conference||XXIIIth Congress of the Polish Parasitological Society, 04-09-2013 - 07-09-2013, Szklarska Poręba-Piechowice, Polska|
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