tailieunhanh - Báo cáo lâm nghiệp: " The response of weevil communities (Coleoptera: Curculionoidea) to the altitudinal zones of beech stands"

Tuyển tập những bài báo cáo nghiên cứu khoa học hay nhất được đăng trên tạp chí JOURNAL OF FOREST SCIENCE đề tài: The response of weevil communities (Coleoptera: Curculionoidea) to the altitudinal zones of beech stands. | JOURNAL OF FOREST SCIENCE 54 2008 6 262-272 The response of weevil communities Coleoptera Curculionoidea to the altitudinal zones of beech stands J. Beránek Faculty of Forestry and Wood Technology Mendel University of Agriculture and Forestry in Brno Brno Czech Republic ABSTRACT Good knowledge of geobiocoenoses is one of the primary preconditions for biogeographical differentiation of the landscape protected territory tending and preservation of forest ecosystems. For deepening the knowledge of the complex geobiocoenological relations the study of curculiocoenoses was conducted. It was conducted in eighteen permanent research plots based in beech stands of the 3rd 4th and 5th altitudinal zone in the regions of South Moravia and East Bohemia. The relation of weevils to altitudinal zones was proved on the basis of some ecological index numbers and statistic methods DCA and CCA P . It was found out that curculiocoenoses of the investigated altitudinal zones overlapped and some species decreased or increased their dominance and abundance with increasing altitude. Characteristics of the beech stand curculiocoenoses have been proposed for the 3rd 4th and 5th altitudinal zone which can be used as an ancillary component of the geobiocoenological or typological system. For a more complex conclusion similar research of weevils should be carried out in the beech stands of other altitudinal zones and also in other forest stands. Keywords altitudinal zones beech stand geobiocoenology weevils Curculionoidea zoocoenosis Study of biocoenoses has been a problematic process for a long time its origins can be found already at the beginning of the AD era Klika 1948 . Although since the 1950s the specialists have been interested more deeply in the relations between phytocoenoses and zoocoenoses Schmolzer 1953 Heyde-mann 1955 Vasatko 1972 Povolný Sustek 1981 Sustek 1993 Mazur 2001 Holecova Sukupova 2002 Holecova Slastanova 2003 Brouat et al. 2004 Eyre et al. 2005 and others there

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