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Báo cáo lâm nghiệp: "How do lepidopteran seasonal guilds differ on some oaks (Quercus spp.) – A case study"

Tham khảo luận văn - đề án 'báo cáo lâm nghiệp: "how do lepidopteran seasonal guilds differ on some oaks (quercus spp.) – a case study"', luận văn - báo cáo phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | JOURNAL OF FOREST SCIENCE 55 2009 12 578-590 How do lepidopteran seasonal guilds differ on some oaks Quercus spp. - A case study M. Turcáni1 J. Patocka1 M. Kulfan2 1 Faculty of Forestry and Wood Sciences Czech University of Life Sciences in Prague Prague Czech Republic Department of Zoology Comenius University Mlynská dolina Bratislava Slovakia ABSTRACT The differences between oak lepidopteran communities were studied in Slovakia in 1993 and 1994. Sampling was undertaken between April and October on 3 oak species Quercus robur Q. petraea Q. rubra . Biological traits of larvae were examined in order to explain differences in seasonal guilds among oaks. Communities varied in structure and abundance. Species richness in four seasonal guilds flush late spring summer and autumn feeders had a similar pattern on each of the studied oak species. The guild of flush feeders had the richest species assemblage followed by the late spring feeder guild and both guilds were significantly richer than the summer feeder guild and autumn feeder guild. Keywords lepidopteran larvae communities Slovakia oaks seasonal guilds Oaks Quercus spp. are represented in Slovakia Central Europe by eight native and one introduced species they are distributed in the warmest part of the country from an altitude of about 100 m up to 1 000 m a.s.l. More than 250 lepidopteran species have been recorded feeding on Quercus spp. Patocka 1980 Patocka et al. 1999 . The life history traits of Lepidoptera in Central Europe and basic information about the species habitat preferences are relatively well known. Habitat preferences and community structure of Lepidoptera in Slovakia were studied earlier by Patocka 1980 and Patocka et al. 1962 1999 and Stolina et al. 1985 but their assessment relied mainly on direct observations and qualitative characteristics rather than on quantitative statistical analyses. Habitat preference was simplified and expressed by forest types units of forest taxonomy - areas where the .