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National Repository of Grey Literature 2 records found  Search took 0.09 seconds. 
The evolution of the social parasitism of Phengaris (Maculinea)
 PECH, Pavel
The presented thesis deals with the evolution of the social parasitism of Phengaris (Maculinea) butterflies. It consists of three related problems: I) The phylogeny of Glaucopsyche section (Lepidoptera: Lycaenidae: Polyommatinae) {--} the social parasitism occured only once in the Glaucopsyche section. II) The conditions in which the social parasitism of Phengaris evolved {--} the process was probably facilitated by unique species composition of the myrmecofauna of the biotopes inhabited by the ancestor of Phengaris. III) The host specificity of Phengaris {--} today{\crq}s view on the host specificity of Phengaris is poorly supported.
Detailed record
Host specificity of Large Blue (Phengaris arion) on Myrmica ants and its relation to habitat management in Valachia, east Czech Republic
 REJMAN, Adam
Large Blue butterfly (Phengaris arion) is one of the critically endangered species in Czech Republic and Europe. Its larvae spend only a short part of the life feeding on flower buds, the rest of the stage it live inside ant nests and feeds on ant broods. I studied preferences of the solely host ant genus Myrmica in Wallachia (eastern Czech Republic), where the butterfly is still abundant. At this sites I explored nests the ants in the time of full grown larvae and pupae (unfortunately I did not find any butterfly stadium), recorded environmental characteristics of the nest vicinity and sampled workers of the ants for further determination. Except some marginal effects I did not find a clear differences in the niche of individual ant species.
Detailed record

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