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Monitoring of changes in distribution of amphibians in Novohradské Mountains and their piedmont
ŽALUD, Štěpán
The changes in the occurrence of amphibian were monitored in the region of Novohradske mountains and in its foothills in seasons 2009-2010. Observation was focused on the presence of 11 species of amphibian in 31 selected locations. The results confirmed a significant decrease in the frequency of the species: Smooth Newt (Lissotriton vulgaris), Alpine Newt (Mesotriton alpestris), Warty Newt (Triturus cristatus) and synklepton Pelophylax synklepton esculentus. A mild decrease by European Tree Frog (Hyla arborea) and Common Spadefood (Pelobates fuscus). The balanced condition was found out by Fired Bellied Toad (Bombina bombina) and Yellow Bellied Toad (Bombina variegata), Common Toad (Bufo bufo), Grass Frog (Rana temporaria), Moor Frog (Rana arvalis) and Agile Frog (Rana dalmatina). Species were determined according to morphological characters. Observed data were compared with results of surveys of monitored sites from years 1999-2004.
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Transformation of butterfly fauna on a middle scale: Situation in the South Bohemian Region.
ZAPLETAL, Michal
This thesis summarises historical and recent information on the distribution of butterflies in South Bohemian region, based on 130 records from literature, collections and recording reports, amassed during Mapping of Czech Republic butterflies. Historical and present distributions of each of 130 butterfly species found in their region are displayed on distribution maps. Out of the 130 species, 42,1 % is already extinct, while 24,1 % is threatened to some extend. Comparison with the situation in entire Czech Republic reveals a higher rate of extinctions, which is probably a function of smaller total area. Compared with the Czech Republic total, xerophilous species suffered higher losses in South Bohemia, whereas species of mesic habitats are relatively less endangered and for peat bogs specialists, the region represents a major refugium. Priorities for further research and active conservation measures are discussed.
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New records of Chironomus MEIGEN species (Diptera, Chironomidae) in the Novohradské Mountains (South Bohemia)
Matěna, Josef ; Matěnová, V.
C. longistylus Goetghebuer and C. sp. South Bohemia were found as new species for the Czech Republic. Karyotype of the new species is presented together with preliminary mapping of chromosomal arms A, C, D, E, F. C. cingulatus, melanescens, nuditarsis, uliginosus and C. (Camptochironomus) palidivittatus are recorded for the first time from Novohradské Mountains. Notes about distribution and ecology of these species are given.
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