Hidrológiai Közlöny 2008 (88. évfolyam)
6. szám - IL. Hidrobiológus Napok: „A Balaton és vízrendszere – a Balaton-kutatás története” és „A Duna-kutatás története” Tihany, 2007. október 3–5.
139 1. táblázat. A gyűjtött taxonok és összesített egyedszámuk Gyűjtött taxonok Egyedszám Anacaena spp. 98 Chaetartria seminulum (Herbst, 1797) 1 Enochrus spp. 4 Graptodytes granulans (Linnaeus, 1767) 81 Haliplus spp. 422 Hydaticus seminiger (De Geer, 1774) 1 Hydraenidae 196 Hydrobius fuscipes (Linnaeus, 1758) 1 Hydrochus crenatus (Fabricius, 1792) 1 Hydroglyphus geminus (Fabricius, 1792) 17 Hydroporus angustatus Sturm, 1835 208 Hygrotus decoratus (Gyllenhal, 1810) 9 Hygrotus inaequalis (Fabricius, 1776) 188 Laccobius spp. 15 Rhantus spp. 17 Irodalom Csabai Z. 2000: Vízibogarak kishatározója I. (Coleoptera: Haliplidae, Hygrobiidae, Dytiscidae, Noteridae, Gyrinidae). - Vízi Természetés Környezetvédelem sor., 15. köt., Környezetgazdálkodási Intézet, Budapest, 277 pp. Csabai Z. 2003: Vízibogarak kishatározója III. (Kiegészítő kötet) - Vízi Természet és Környezetvédelem sor. 17. köt.. Környezetgazdálkodási Intézet, Budapest, 280 pp. Csabai Z. - Gidó Z. - Szél G. 2002: Vízibogarak kishatározója II. (Coleoptera: Georissidae, Spercheidae, Hydrochidae, Helophoridae, Hydrophilidae). - Vízi Természet- és Környezetvédelem sor. 16. köt., Környezetgazdálkodási Intézet, Budapest, 206 pp. Cuppen, J.G.M. 1983: On the habitats of three species of the genus Hygrotus Stephens (Coleoptera , Dytiscidae). - Freshwat. Biol. 13: 579-588. De Szalay, F. - Resh, V. 2000: Factors influencing macroinvertebrate colonization of seasonal wetlands: responses to emergent plant cover. - Freshwat. Biol. 45: 295-308. Fernando, C.H. - Galbraith, D. 1973: Seasonality and dynamics of aquatic insects colonizing small habitats. - Verh. Internat. Verein. Limnol. 18: 1562-1575. Flechtner, G. 1986: Association analysis of water beetle communities (Coleoptera: Dytiscidae et Haliplidae). Entomol. Bas. 11:297-308. Heino, J. 2000. Lentic macroinvertebrate assemblage structure along gradients in spatial heterogeneity, habitat size and water chemistry. - Hydrobiologia 418: 229-242. Nilsson, A. N. - H. Söderberg 1996: Abundance and species richness patterns of diving beetle (Coleoptera: Dytiscidae) from exposed and protected sites in 98 northern Swedish lakes. - Hydrobiologia 321: 83-88. R Development Core Team 2005: R: A language and environment for statistical computing. R Foundation for StatisticalComputing, Vienna, ISBN 3-900051-07-0, URL:http://www.R-proiect.orn StatSoft, Inc. 2006: Electronic Statistics Textbook. Tulsa, OK: StatSoft. http://www.statsoft.com/textbook/stathome.html Timmermann, T.K. — Margóczi, K. - Takács, G. — Vegelin, K. 2006. Restoration of peat forming vegetation by rewetting species-poor fen grasslands. — Appl. Veg. Sei. 9: 241-250. Tolonen, K. T. - Hamalainen, H. - Holopainen, I.J. - Mikkonen, K. Karjalainen, J. 2003: Body size and substrate association of littoral insects in relation to vegetation structure. - Hydrobiologia 499:179-190. Tóthmérész B. 1998: On the characterization of scale-dependent diversity. -Abstr. Bot. 22:149-156. Verberk.W.C.E.P- Esselink, H. 2005: Aggregation of water beetles: Mechanisms of dispersal. Proc. Neth. Entomol. Soc. Meet. 16: 51Experimental investigations on the colonization strategies of water beetles (Coleoptera) - the effects of macrophytes and substrate Molnár, A.', Molnár, M. 2, Farkas, J.' 'Eötvös Loránd University, Department of Systematic Zoology and Ecology, H-1117. Budapest, Pázmány Péter sétány 1/c., 2University of Köln, Botanical Institut, Department 1, 50931. Köln, Gyrhofstr. 15., Germany Abstract: In this study water beetle colonization strategies were examined in artificial ponds. Our questions related to the effects of the presence and type of macrophytes (submerged or emergent) and that of the ground substrate (plastic or soil covered) on the colonization of the beetles. Our hypotheses was that the presence of macrophytes and also of the soil has a positive effect on their occurence. The experiment was arranged in artificial tanks with a volume of approx. 100 1, in which we planted Lemna minor, Ceratophyllum demersum and layed soil, respectively. The settled water beetles were caught with hand net and determined immediately to genera- or species level, before readmitting them into the ponds. The number of individuals per pond was compared with non-parametric Friedman-Test, while the number of species in the different pond-types was analyzed with Rényi-diversity profiles. Our results showed significant differences between the particular pond-types: water beetles preferred to colonize ponds with Lemna minor and Ceratophyllum demersum , while ponds only with soil were less attractive. Ponds without macrophytes and soil were least colonized. Keywords: water beetles, colonization, artificial ponds, plantation. Klossy Irén alkotása
