Community structure, life histories and secondary production of stoneflies in two small mountain streams with different degree of forest cover

  • Pavel Beracko | beracko@fns.uniba.sk Comenius University in Bratislava, Slovakia.
  • Andrea Kušnírová Comenius University in Bratislava, Slovakia.
  • Michaela Partlová Comenius University in Bratislava, Slovakia.
  • Jana Ciceková Comenius University in Bratislava, Slovakia.

Abstract

Our study examines community structure and nymphal biology (life cycles and secondary production) of stoneflies in two adjacent mountain streams with different degree of forest cover in the Prosiečanka River Basin (Chočské Vrchy Mts., West Carpathians). One of the streams has non-forested catchment, converted to meadows and pastures, while the other one has catchment with 60% covered by spruce forest. Differences in forest cover and in thermal regime of the streams were reflected by the difference of stonefly communities at their structural and functional level. Species Nemoura cinerea and Leuctra aurita created stonefly assemblage in non-forested stream, whereas Nemoura cinerea also occurred in naturally forested stream together with species Leuctra armata, Leuctra nigra, Leuctra prima, Siphonoperla neglecta and Arcynopteryx dichroa. All examined species had maximally annual life cycle and in eudominant species Nemoura cinerea one month shift was found in nymphal hatching and adult emergence between streams. Total secondary production of stoneflies in undisturbed stream (126.46 mg DW m-2 y-1) was more than two times higher than the production in non-forested stream (47.39 mg DW m-2 y-1). 

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Published
2015-10-13
Info
Issue
Section
Original Articles
Supporting Agencies
Slovak Grant Agency VEGA
Keywords:
Deforestation, Plecoptera, life cycle, secondary production, small stream.
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How to Cite
1.
Beracko P, Kušnírová A, Partlová M, Ciceková J. Community structure, life histories and secondary production of stoneflies in two small mountain streams with different degree of forest cover. J Limnol [Internet]. 2015Oct.13 [cited 2020Jul.11];75(1). Available from: https://www.jlimnol.it/index.php/jlimnol/article/view/jlimnol.2015.1262