Buchbesprechungen

Buchbesprechunge

Distribution and ecology of Carex secalina in the Czech Republic and Slovakia

Current and historical occurrence as well as coenotic affinity and ecology of Carex secalina in the Czech Republic and Slovakia are presented. The study is based on revision of herbarium specimens from 25 herbaria, literature data excerption and a field survey carried out during 2004-2010. Altogether, 168 sites were documented in the Czech Republic divided to two separate areas. Stabile occurrence trend was found in last decades, because 45 localities were documented in period 1975-1999 (27% of sites) and recent occurrence was confirmed at 42 localities (24% of sites). On the basis of our current knowledge the species was included into the IUCN threat category VU (vulnerable). In Slovakia, 19 localities of the species were recorded in total, but only 4 sites were confirmed recently (21% of sites recorded). However, only a small number of individuals was recorded there (less than 50 individuals in total) and half of this sites is acutely threatened by destruction (ploughing, secondary succession). Therefore, the C. secalina status in the Slovak Red List was changed to the IUCN category "critically endangered" (CR). Results of the study are summarised in the maps of historical and current species distribution. C. secalina usually occurred in halophytic grassland communities, especially in association Agrostio stoloniferae-Juncetum ranarii Vicherek 1962. However, it may occur in many other communities which suggest that the species had not well-defined coenotic relationships. On the basis of our knowledge, we consider C. secalina as an obligate halophyte

Les conditions de luminosité dans deux groupements rupicoles montpelliérains

par J. Braun-Blanquet, Montpellier, et H. Niklfeld, Wie

Contents

Abstract — VoiceXML offers the prospect of a streamlined deployment process of voice-interfaces for commercial applications, similar to the ease of web development. This in turn promises increased dynamism in the field of speech and language research. The aim of this work is to investigate opportunities and constraints for the integration of intelligent component technologies into VoiceXML-based systems: candidate tasks to be treated by such components include natural language understanding, natural language generation, multilinguality and natural language interfaces to applications and databases. What role will these fields originating from AI research play in the VoiceXML environment