Ábrahám Levente (szerk.): Válogatott tanulmányok VI. - Natura Somogyiensis 19. (Kaposvár, 2010)

SALAMON-ALBERT É., HORVÁTH F., & ORTMANN-AJKAI A.: Climatic conditions and habitats in Belső-Somogy, Külső-Somogy and Zselic as vegetation-based landscape regions II. Temperature and precipitation sensitivity of woodlands

SALAMON-ALBERT ET AL.: CLIMATIC CONDITIONS AND HABITATS 59 ables for driest and coldest quarter are similar due to the remarkable seasonal overlapping (see Material and Method). Analysing habitat distribution of woodlands occurrence by temperature variables, there are four peak pattern types, including 1, 2, 3 or 4 multipeaks (Figure 2, Table 2). BIOCLIM-1 has one bell-shaped distribution curve, the same as in regional climate and habitat envelopes, forming one regional climatic functional group. Among distribution curves riverine and swamp woodlands (J) has the narrowest width at half height with the highest relative proportion. Maximum frequency in occurrence all of woody habitats is manifested at exactly equalled mean annual temperature compared to the one of the regional climate envelope. BIOCL1M-4 has a four-peaked distribution as the regional climate envelope, containing two climate functional groups (ENV1-2, ENV3-4) in its range. All woody habitats completely seize the range of this bioclimatic variable, but the exception of riverine and swamp woodlands. Among habitats mesic deciduous woodlands (K) have a two-peaked distribution, assuming at the medium regional values. Riverine and swamp woodlands (J) has a three-peaked distribution at the lowest values of annual seasonality range. Closed dry deciduous woodlands (L) and other tree dominated habitats (R) both have a four-peaked distribution, properly fitted to multipeak of regional climate envelope by the annual temperature seasonality. BIOCLIM-8 has a significantly different two-peaked regional climate envelope, containing two regional climate functional groups (ENV1, ENV2). All woody habitats completely seize the range of this bioclimatic variable and they are also completely divided by the differentiation of regional climate envelope, resulting similar width and proportion within the groups. The only exception are the riverine and swamp woodlands, that have a narrowest width at lower temperatures and a higher proportion at higher temperatures of the mean temperature of wettest quarter. BIOCLIM-9 has a three-peaked regional climate envelope, showing only one climate functional group (ENV1-3) in its range. Most of woody habitats completely seize the range of this bioclimatic varible. Riverine and swamp woodlands (J) as an exception, having a two-peaked distribution and it is shifted toward the highest temperatures with the highest proportion at medium regional temperature range. Mesic deciduous woodlands (K) have also a two-peaked distribution, normally fitted to higher temperatures of regional climate envelope. Closed dry deciduous woodlands (L) and other tree dominated habitats (R) both have a three-peaked distribution, properly fitted to the multipeak of regional climate envelope by the mean temperature of driest quarter. Analysing habitat distribution of woodlands occurrence by precipitation variables, there were three peak pattern types, including 3, 4 or 5 multipeaks (Fig. 3, Table 2). BIOCLIM-1

2 has a four-peaked regional climate envelope, insisting two climate functional groups (ENV

1, ENV2-4). Most of woody habitats (K, L, R) completely seize the range of annual precipitation, but the exception of riverine and swamp woodlands. J habitats exclusively occur at high yearly precipitation (>650 mm), including two peaks as one habitat functional group. Mesic deciduous woodlands have a three-peaked distribution, by two significantly different habitat functional groups (ENV1 and 3, ENV2). Closed dry deciduous woodlands (L) and other tree dominated habitats (R) both have a four-peaked distribution, properly fitted to multipeak of regional climate envelope by the annual precipitation. BIOCLIM-1

7 displays a four-peaked regional climate envelope, containing two climate functional groups (ENV 1-3, ENV4). Some of woody habitats (L, R) completely seize the range of this variable, but the exception of riverine and swamp woodlands and mesic deciduous woodlands at the range of higher precipitation. J habitats exclusively