Hidrológiai Közlöny 2001 (81. évfolyam)

5-6. szám - XLII. Hidrobiológus Napok: „A magyar hidrobiológia időszerű kérdései az ezredfordulón” Tihany, 2000. október 4–6.

516. HIDROLÓGIAI KÖZLÖNY 2001. 81. ÉVF. 5-6. SZ. Carchini, G.. Chiarolli, F., Di Domenico, M„ Paganotti, G. (2000): Fluctuating asymmetiy, size and mating success in males o( Ischnura elegáns (Vander Linden) (Odonata: Coenagrionidae). Animal Behaviour 59: 177-182. Corbet, P.S. (1980): Biology of Odonata. Annual Review of Entomology 25: 189-221. Cordero, A. (1995): Reproductive allocation in different-sized adults Ischnura graellsii (Odonata: Coenagrionidae). Ecological Entomology 20: 213-222. Cordero, A., Sanlolomazza - Carbone, S., Ulzeri, C. (1997): Male mating success in a natural population of Ischnura elegáns (Vander Linden) (Zygoptera: Coenagrionidae). Odonatologica 26: 459-465. Córdoba-Aguilar, A. (1995): Fluctuating asymmetry in paired and unpaired damselfly males Ischnura denticollis (Burmeistcr) (Odonata: Coenagrionidae). Journal ofEthology 13/1: 129-132. Forbes, KI, Leung, B., Schalk, G. (1997): Fluctuating asymmetry in Coenagrion resolutum (Hagen) in relation to age and male pairing success (Zygoptera: Coenagrionidae). Odonatologica 26: 9-16. Harvey, I.

F., Walsh, KJ. (1993): Fluctuating asymmetry and lifetime mating success are correlated in males of the damselfly Coenagrion puella (Odonata: Coenagrionidae). Ecol. Entomology 18: 198-202. Lessells, CM., Boag, P.T. (1987): Unrepeatable repeatabilities: a common mistake. The Auk 104: 116-121. Leung, B., Forbes, M.R. (1997): Fluctuating asymmetry as an indicator of stress: implications for wildlife biology. Trends in Ecology and Evolution 4: 214-217. Miller, P.L. (1987): An examination of the prolonged copulations o( Ischnura elegáns (Vander Linden) (Zygoptera: Coenagrionidae). Odonatologica 16: 37-56. Moller, A.P. (1997): Developmental stability and fitness: a review. American Naturalist 149: 916-932. Palmer, A.R., Strobeck, C. (1986): Fluctuating asymmetry analysis: a primer. In: Markov, T.A. (ed.): Developmental instability: its origins and evolutionary implications, p. 335-364, Kluvcr, Amsterdam. Thompson, DJ., Banks M.J. (1989): Short-time mating success of male Coenagrion puella (L.) (Zygoptera: Coenagrionidae). Odonatologica 18: 65-73. Fluctuating asymmetry in paired and unpaired males of the damselfly Ischnura elegáns (Odonata: Coenagrionidae) N. Szállassy', E. Bárdosi', D.Z. Szabó

2, Gy. Dévai' ' Depui Inteni of Ecology, Unlveniiy of Debrecen, H-4032. Debrecen, Egysem tér /., Hungary 2Department of Evolutionär}' Zoology and Human Biology

, University of Debrecen, H-4032. Debrecen, Egyetem tér 1. Abstract: Fluctuating asymmetry (the absence of symmetry in bilateral traits) can be a measure of an individual's quality. Several authors relate reproductive success to wing asymmetry in odonates although the various and often contradictory results in the literature do not allow us to clear the role of symmetry and its implications. The damselfly of Ischnura elegáns was used in our experiment to test the hypothesis that the more symmetrical the wings are, the greater success the individuals achieve in pairing. Males of I. elegáns were collected three times during the reproductive period and separated as paired and unpaired in the field. The distance between arculus and proximal comer of the pterostigma was measured to determine the rate of fluctuating asymmetiy. Body size was also calculated. We found that neither reproductive success nor body size correlated significantly with wing asymmetry. The inadequate determination of reproductive succcss and major contradictions between long-term and short-term studies are discussed as possible explanations for the results. Keywords: Ischnura elegáns, fluctuating asymmetry, reproductive succes Ábrák a Hidrológiai Közlöny 1950. évi 3-4. számának 109. oldaláról: Abb. 3, a—J ábra. M. galcata különböző oldalról élő állat után, a. b..f rajzoló készülékkel (IV : 3), c, 1 szabadon, e keresztmetszet vázlatosan /-nek nvíllal jelölt hosszanti síkján. Cca 100 x._ M. galcata von verschiedene Seite her, a, b,J, mit Zeichenapparat (IV. 3) c und / nach freier Hand, e Längschnitt vom J in der Richtung des PJeiles. Cca 100-x. Gdei József: Szeged vidéke szikes tavainak Marynidái - Die Marynidae der Sodagewäesser in der Nähe von Szeged c. cikkéből