Ábrahám Levente (szerk.): Válogatott tanulmányok X. - Natura Somogyiensis 25. (Kaposvár, 2014)
Cozma N. J. - Juhász P. - Müller Z. - Olajos P. - Kiss B.: The true bug (Heteroptera: Nepomorpha, Gerromorpha) fauna of some soda pans and sodic water bodies of Great Hungarian Plain
44 Natura Somogyiensis Results and Discussion Twenty-six aquatic and semiaquatic heteropteran species were recorded from 29 localities (see later and Table 2), which represent 45.6% of the Hungarian fauna. Based on our data and other quantitative data (Juhász et al. 1998a, Kiss et al. 2001), the most wide-spread six species in the natural or semi-natural soda pans (site 1-10, 14-16, 18, 21-22,24-26, 28-29) in rank order were: Sigara lateralis, Paracorixa concinna, Cymatia rogenhoferi, Sigara striata, Corixa affinis and Gerris odontogaster. True bug fauna of these habitats was dominated by halophilic, halotolerant and ubiquist species. Two water striders from Kelemen-szék, Gerris lacustris and Limnoporus rufoscutellatus are not typical in soda pans. The collected specimens were in macropterous form and we can strongly assume they only arrived in the pans by chance during dispersal. Furthermore, Corixa panzeri, Cymatia coleoptrata, Ilyocoris cimicoides, Micronecta scholtzi and Ranatra linearis were typical for the less characteristic soda pans (with low salinity, artificially modified water regime) with higher extent of vegetation (reed and submerged macrophytes) or for sodic marshes (site 12-13, 17, 19-20, 23). C. rogenhoferi, P. concinna and S. lateralis were previously found in Bába-szék, Büdös-szék (Szabadszállás), Kelemen-szék and Zab-szék by Csabai et al. (2010) and Petri et al. (2012). In addition to these species, C. affinis, G. argentatus, Gerris odontogaster, G. thoracicus, Notonecta glauca, Plea minutissima and S. striata were caught near to Kelemen-szék by light trap (Bakonyi and Vásárhelyi 1987). According to these results, there is no considerable change in the species composition of the water bug fauna of Kelemen-szék in the last decades. Petri et al. (2012) found Gerris lacustris, Micronecta scholtzi, Nepa cinerea and R. linearis in Kakasszéki-tó between 2007 and 2011, suggesting that this habitat started to lose its sodic character. They also found Hesperocorixa sahlbergi which do not inhabit soda pans or sodic water bodies, as it normally lives in oxbow lakes or in mires (Kiss et al. 2008), but it was found in the Lake Balaton (Vásárhelyi and Bakonyi 2005) and in streams e.g. Széplaki-patak or Szentjakabi-patak (Móra et al. 2008). Since our sampling, a new notonectid species, Anisops sardeus sardeus Herrich-Schaeffer, 1849 was discovered in some sodic waters such as Büdös-szék (Pusztaszer), Kakasszéki-tó, Csikóspusztai-tó (Királyhegyes) and Nagy-Széksóstó (Mórahalom), but this species was also found in other water body types (oxbows, fish ponds, lowland canals), and therefore, it cannot be considered as a typical soda water species (Soós et al. 2010, Petri et al. 2012). List of Heteroptera species and their occurences Aquarius paludum paludum (Fabricius, 1794) - Kelemen-szék Corixa affinis Leach, 1817 - Bába-szék; Bocskoros-szik; Bogárzó; Böddi-szék; Büdös-szék (Pusztaszer); Büdös-szék (Szabadszállás); Fehér-szék; Kakasszékhalmi- mocsár; Kakasszéki-tó; Kápolnás-tó; Kardoskúti Fehér-tó; Kelemen-szék; Kis-rét; Kis- sóstó; Partos-széki-anyaggödrök; Szappan-szék; Zab-szék Corixa panzeri (Fieber, 1848) - Kis-rét Corixa punctata (Illiger, 1807) - Bába-szék; Bocskoros-szik; Bogárzó; Büdös-szék (Pusztaszer); Fehér-szék; Fehér-tó; Kakasszékhalmi-mocsár; Kakasszéki-tó; Kápolnás- tó; Kardoskúti Fehér-tó; Kis-rét; Kis-sóstó; Nagy-szik; Partos-széki-anyaggödrök; Szappan-szék
