South Moravian Museum in Znojmo

Znojmo, Czech Republic

South Moravian Museum in Znojmo

Znojmo, Czech Republic
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Burianek D.,Czech Geological Survey | Houzar S.,Moravian Museum | Krmicek L.,Brno University of Technology | Krmicek L.,Academy of Sciences of the Czech Republic | Smerda J.,South Moravian Museum in Znojmo
Journal of Geosciences (Czech Republic) | Year: 2017

The lower crustal Gföhl Unit (Moldanubian Zone of the Bohemian Massif) consists of various felsic orthogneisses to migmatites (the so-called Gföhl gneiss) that are commonly associated with the high-pressure felsic granulites, serpentinized garnet/spinel peridotites, garnet pyroxenites, eclogites and skarns. The relatively small skarn bodies at Vevčice in southern Moravia have the prevailing assemblage of medium- to coarse-grained granoblastic clinopyroxene + garnet ± amphibole ± epidote. The skarn is cut by narrow veins of diorite pegmatite (SiO2 = 46–56 wt. %) which is geochemically distinct from granitic melt generated by migmatization of surrounding orthogneisses. Major pegmatite minerals are plagioclase (An15–44), amphibole (K-rich hastingsite and potassic-hastingsite) and quartz, accompanied by minor K-feldspar, garnet, allanite–epidote, clinopyroxene, and accessory titanite. The pegmatites are characterized by high contents of Fe2O3tot (11.2–17.5 wt. %), CaO (7.5–10.1 wt. %), Na2O (2.9–3.3 wt. %) and low contents of MgO (1.4–1.6 wt. %), K2O (1.2–1.6 wt. %), Rb (43–86 ppm). Whole-rock and mineral chemistry of diorite pegmatites are consistent with their origin as a product of melt infiltration from surrounding migmatites and subsequent contamination by the country-rock skarn, with or without, fractional crystallization/crystal accumulation. Similarity in composition of amphiboles in the skarn and in the pegmatite can indicate formation under similar conditions, at c. 750°C and 0.7–0.8 GPa. © 2017, Czech Geological Society. All rights reserved.

Lucan R.K.,Charles University | Bartonicka T.,Masaryk University | Benda P.,Charles University | Bilgin R.,Istanbul Science University | And 9 more authors.
Journal of Mammalogy | Year: 2014

We collected and analyzed data on the annual course of reproduction of the Egyptian fruit bat (Rousettus aegyptiacus) in 2 climatically distinct areas, the Mediterranean and the Egyptian desert, located at the northern limits of the species' distribution. In both regions, reproductive seasonality was characterized by distinct bimodality in birth timing regardless of climatic differences. A low incidence of simultaneous pregnancy and lactation indicated that both seasonal bimodal polyestry with and without postpartum estrus may occur in both regions, with a possibly lower incidence of postpartum estrus in females from the Mediterranean population. Observed shifts in birth timing between the Mediterranean and the desert study area corresponded to regional differences in fruiting phenology of major dietary plants. The male reproductive cycle was synchronized with that of females. The period of testicular recrudescence occurred during the peak pregnancy period. Because testis size was related to body mass irrespective of body size, we hypothesize that food abundance is an important trigger of male sexual activity. R. aegyptiacus is the sole species with seasonal bimodal polyestry among Palearctic bats. © 2014 American Society of Mammalogists.

Vallo P.,Academy of Sciences of the Czech Republic | Benda P.,National Museum Natural History | Benda P.,Charles University | Reiter A.,South Moravian Museum in Znojmo
African Zoology | Year: 2011

The yellow-bellied Scotophilus dinganii is the only African house bat species reported to occur in the Arabian Peninsula. Formerly, the Arabian house bats were referred to similar-looking white-bellied S. leucogaster, which differs from S. dinganii mainly by the colour of ventral pelage. We reassessed the taxonomic status of house bats from southwestern Yemen using genetic and morphological analyses. The Yemeni specimens clustered within two distantly related mitochondrial lineages of African Scotophilus: East African S. aff. dinganii, which is a paraphyletic group to S. dinganii s.str. from South Africa, and West African S. leucogaster. This taxonomic assignation was based on published sequences of reference museum specimens. Differences in external and cranial measurements also indicated the presence of two distinct taxa in Yemen. The Yemeni and comparative Ethiopian populations of S. aff. dinganii showed close morphological similarity to the type specimen of S. nigrita colias from Kenya. Because the Yemeni and Ethiopian yellow-bellied house bats cannot be synonymized with S. dinganii, the designation S. colias is tentatively suggested for this particular East African and Yemeni lineage of the S. dinganii complex. However, final correspondence of this name with the respective populations or applicability of some of other available names must yet be explored. Based on environmental differences of the Yemeni localities of origin, S. colias appears to be ecologically delimited to mountainous habitats, while S. leucogaster to harsh lowland deserts. This is consistent with known habitats of African populations of both species.

Nemec R.,South Moravian Museum in Znojmo | Lososova Z.,Masaryk University | Drevojan P.,tr. Masarykova 179 | Zakova K.,Masaryk University
Biologia | Year: 2011

A synthesis of the alliance Eragrostion cilianensi-minoris in the Czech Republic is presented on the basis of 82 relevés including new unpublished data. A TWINSPAN classification and detrended correspondence analysis were used to identify the main vegetation types included in the alliance Eragrostion cilianensi-minoris. A syntaxonomic revision of the data set revealed five associations of the alliance: Digitario sanguinalis-Eragrostietum minoris, Portulacetum oleraceae, Eragrostio poaeoidis-Panicetum capillaris, Cynodontetum dactyli, and Hibisco trioni-Eragrostietum poaeoidis. The latter was recently found in several arable fields in Southern Moravia (Czech Republic) and was newly characterized. © 2011 Versita Warsaw and Springer-Verlag Wien.

Macat Z.,Palacky University | Jerabkova L.,Nature Conservation Agency of the Czech Republic | Reiter A.,South Moravian Museum in Znojmo | Rulik M.,Palacky University | Jablonski D.,Comenius University
Acta Herpetologica | Year: 2015

Morphological abnormalities occur frequently in wild amphibian populations. We analysed malformation and injuries in the hybrid zone of three crested newt species, in the Czech Republic. In total, 274 individuals from 35 localities in South Moravia (Czech Republic) were examined during the period 2010-2014. Malformations were found in eight newts (2.9%) from seven localities. Injuries were recorded on 59 newts (21.5%). Proportions of tail crest injuries was significantly higher (P ˂ 0.1) in males than in females and the probability of being injured was significantly higher (P ˂ 0.01) for adult individuals. We discuss gene mutation, parasitism and predation as possible explanations for our observations. © Firenze University Press.

Hajek J.,National Museum | Reiter A.,South Moravian Museum in Znojmo
Acta Entomologica Musei Nationalis Pragae | Year: 2014

Hyphydrus dioscoridis sp. nov. from Socotra Island is described and illustrated. The new species belongs to the H. signatus species group, and is similar to Hyphydrus pictus Klug, 1834 from the Arabian Peninsula, from which it differs in the signifi cantly coarser, deeper and denser punctation, broadly bordered clypeus, head between punctures microreticulated, tubercle on the apex of apical ventrite in male rounded, and microreticulate dorsal surface of the female. Adephagous water beetles of Yemen (including Socotra Island) and Dhofar region, southernmost Oman, are reviewed. Altogether eight species of Gyrinidae (of which one is not identifi ed to species level), one species of Haliplidae, one species of Noteridae, and 52 species of Dytiscidae are documented. New records of 48 species are presented, while two previously described species, Dineutus arabicus Régimbart, 1907 and Hydaticus arabicus Guignot, 1951, are diagnosed and illustrated. Four species of Dytiscidae are recorded from Oman for the fi rst time; twelve species (one Gyrinidae, 11 Dytiscidae) are recorded from Yemen for the fi rst time – eight from continental Yemen and four from Socotra; in addition two other Dytiscidae species are recorded from Socotra for the fi rst time, and the occurrence of another Gyrinidae species previously known from a doubtful record is confi rmed. Habitat information is provided for recently collected species. The zoogeographical patterns of the region are briefl y summarized. © 2014 Acta Entomologica Musei Nationalis Pragae All rights received.

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