National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Cold tolerance of mountain and lowland butterflies
VRBA, Pavel
The thesis deals with ecophysiology of overwintering larvae of two butterfly genera, Colias and Erebia. It focuses on identification of supercooling point, survival of various low temperature regimes and composition of cryoprotective substances. Results are presented in the context of distributional limits of individual species, their habitat requirements and their potential endangerment due to environmental and habitat changes.
Demography of a large and common butterfly: Argynnis aglaja (Lepidoptera, Nymphalidae) studied by mark-recapture
ZIMMERMANN, Kamil
The population structure, demography parameters, dispersal and behaviour of the Dark Green Fritillary (Argynnis aglaja) butterfly were studied on the traditionaly managed submontane seminatural grasslands, in order to elucidate the relatively successful persistence of this species, if compared with other butterflies sharing the same habitat.

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