Learn More
Larssoniella duplicati n.sp. infects the midgut muscularis, the Malpighian tubules, and the ovaries of adult Ips duplicatus (Sahlb.) in the Czech Republic. The microsporidian attacks up to 50% of the population. Oval spores of two sizes, 3–3.5×1.5–2 and 2–2.5×1.5 μm have the polar filament coiled in 6/7 coils, representing primary and environmental spores,(More)
Pathogens of two important bark beetles, Ips typographus and Ips duplicatus, both in outbreaks connected with infestation of spruces by the fungus Armillaria ostoyae, were compared at four localities in the eastern Czech Republic. Low infestations of Chytridiopsis typographi, Nosema typographi, Menzbieria chalcographi, and Gregarina typographi were detected(More)
During a study of endophytic and saprotrophic fungi in the sapwood and phloem of broadleaf trees (Salix alba, Quercus robur, Ulmus laevis, Alnus glutinosa, Betula pendula) fungi belonging to an anamorphic coelomycetous genus not attributable to a described taxon were detected and isolated in pure culture. The new genus, Liberomyces, with two species, L.(More)
Xylariaceous endophytes are commonly encountered in plants, and it has recently been found out that insect vectors play a major role in their life cycle, as well as in the apparent host-specificity of the fungal stromata. In this study, a new insect-associated, endophytic anamorph species of Daldinia is recognised from a comparison of a) morphological and(More)
A checklist is presented of the Orthoptera of the Czech Republic. Based on the critical revision of published data and previous lists of species, which often contained only general or questionable data and which often inaccurately cited each other, we found 96 species of Orthoptera belonging to the fauna of the Czech Republic. We emphasize those changes(More)
The period between 2000 and 2002 repeated outbreaks of the web spinning sawfly Cephalcia lariciphila (Wachtl 1898) around the village of Větrný Jeníkov, Czech Republic. The impact of defoliation, caused by C. lariciphila feeding, on tree-ring formation of European larch (Larix decidua Mill.) was studied using dendrochronological methods. Heavy defoliation(More)
The northwestern distributions of several steppe species of Orthoptera extend to the southeastern part of the Czech Republic (Pannonia) and occupy more or less isolated fragments of optimal habitats. Their distributional limits are not conditioned by macroclimate in most cases but reflect landscape development (physical structure, plant community type and(More)
The ecological requirements and biology of the Tetrigidae are almost unknown. The aim of the present work is to contribute to the knowledge of Tetrix bolivari, one of the least studied species of European Tetrigidae, by investigating its seasonal and daily activity, food biology, and vibratory communication. Adults of T. bolivari were found from March to(More)
According to the International Union for the Conservation of Nature, taxa extinct within a region but extant in other parts of the world should be classified as Regionally Extinct (RE). A taxon is designated RE when there is no reasonable doubt that the last individual capable of reproduction within a region has died or disappeared. A taxon can also be(More)
The bush cricket Saga pedo is a critically endangered species in the EU and is included in Annex IV of Council Directive 92/43/EEC. This species is therefore subject to mandatory regular monitoring within all member countries where it occurs. Because its abundance is low and little information is available concerning its ecology, however, an effective(More)