Comparison of mayfly (Ephemeroptera) taxocenes of permanent and intermittent Central European small streams via species traits

0355678 - BC 2011 RIV PL eng J - Článek v odborném periodiku
Řezníčková, P. - Soldán, Tomáš - Pařil, P. - Zahrádková, S.
Comparison of mayfly (Ephemeroptera) taxocenes of permanent and intermittent Central European small streams via species traits.
Biologia. Roč. 65, č. 4 (2010), s. 720-729. ISSN 0006-3088. E-ISSN 1336-9563
Grant CEP: GA ČR GA206/06/1133; GA AV ČR 1QS500070505
Grant ostatní: Ministry of the Environment of the Czech Republic(CZ) MZP0002071101
Výzkumný záměr: CEZ:AV0Z50070508
Klíčová slova: Ephemeroptera * drought survival * species traits
Kód oboru RIV: EH - Ekologie - společenstva
Impakt faktor: 0.609, rok: 2010

The recurrent drying out of small streams in past decades has shown an urgent need to pay attention to the impact of global climate change. The objectives of this study were to describe the effect of drying out on the composition of the mayfly taxocene and evaluate the relevance of individual species traits for survival of mayflies to drying out. The mayfly taxocenes of two model localities, one at an intermittent and one at a permanent brook, were investigated in 2002, 2003 and 2005. Compared with the permanent stream, the taxocene of the intermittent stream was short of nine species, foremost rheobionts and high oxygen demand species. To explain further differences between both stream types in survival and recolonisation ability, 15 species traits were evaluated. These included so-called "ecological traits" (e.g., habitat and substrate range, density, distribution, current velocity adaptation) and "biological traits" connected with life cycle and larval/adult adaptations.
Trvalý link: http://hdl.handle.net/11104/0194391