Ábrahám Levente (szerk.): Válogatott tanulmányok VIII. - Natura Somogyiensis 23. (Kaposvár, 2013)
Salamon-Albert É.: Climatic conditions and habitats in Belső-Somogy, Külső-Somogy and Zselic as vegetation-based landscape regions IV. Precipitation envelopes of mesic deciduous woodlands
Salamon-Albert, É.: Climatic conditions and habitats 85 Discussion Previous analyses have resulted that precipitation variables could generally play a more significant role for mesic woody habitats distribution in the landscape region than temperature ones, but the exception of mean diurnal temperature range [BIOCLIM-2] for sessile oak hornbeam woodlands and mean temprerature of coldest quarter [BIOCLIM-11 ] for the beech woodlands (Salamon-Albert et al. 2010a,b, 2011, 2012). Among the eight studied precipitation variables all of them turned to be distinctive for the beech woodlands distribution having significant difference to semi-natural habitats (A-NER). According to annual precipitation [BIOCLIM-12], precipitation of wettest month [BIOCLIM-13] and precipitation of warmest quarter [BIOCLIM-18] beech woodlands are diverged from the totality of mesic deciduous woodlands (K) owing to their narrowest precipitation envelopes (see Fig. 3). A strong climate envelope differentiation with the sessile oak hornbeam woodlands (K2) was investigated by the precipitation of wettest month [BIOCLIM-13] only. Evaluating climate preference of beech woodlands (K5) described by the precipitation envelopes, all of variables become relevant for differentiation to semi-natural habitats as a whole (A-NER), owing to their narrow range. A strong separation with mesic deciduous woodlands as a whole (K) was revealed by the annual precipitation and the precipitation of wettest month as July. A strong and sharp differentiation with sessile oak hornbeam woodlands (K2) was detected by the precipitation of wettest month as July. Distinction of beech woodland habitats with pedunculate oak-hornbeam woodlands (Kla) was not established in any case of precipitation envelopes. Precipitation preference of sessile oak hornbeam woodlands (K2) was exhibited by precipitation of wettest and warmest quarter, and of pedunculate oak hornbeam woodlands (Kla) was manifested by precipitation of wettest quarter merely. As the result of climate envelope analysis, beech woodland habitats turned to have the most restricted distribution among studied mesic woody habitats by all of precipitation variables. Sessile and pedunculate oak-hombeam woodlands are climatically defined in the landscape by the precipitation of July. Regarding to functional group analysis, annual sum [BIOCLIM-12] and precipitation of warmest quarter [BIOCLIM-18] turned to be the most effective for niche segregation of mesic deciduous woodlands as a whole and the woody habitats each. In contrast with the latter, niche aggregation of mesic woody habitats leading to unity of climate specification was highly supported by the precipitation of wettest month [BIOCLIM-13] and the seasonality [BIOCLIM-15], Acknowledgements Vegetation and climatic data were available as requested by MÉTA workgroup, Institute of Ecology and Botany of the Hungarian Academy of Sciences (Vácrátót, Hungary). Research was financially supported by OM-NKFP/2002: „Magyarország természetes növényzeti örökségének felmérése és összehasonlító értékelése”. Field data were kindly contributed by Bauer N., Bódis J., Botta-Dukát Z., Börcsök Z., Csiky J., Dávid J., Filotás Z., Fridrich Á., Hegedős L., Horváth A., Juhász M., Kádár G., Király G., Kovács T., Lelkes A., Lőrincz R, Mányoki G., Pándi I., Pfeiffer N., Szabó A., Szalóky I., Szeglet R, Toldi M., Varga A., Wágner L., Zsidákovits J. Climate envelope analysis was sponsored by „TÁMOP 4.2.2.A-11/1/ KONV-2012-0004” research grant.
