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@article{1352225,
author = {Hubáčková, Lenka and Rádková, Vanda and Bojková, Jindřiška and Syrovátka, Vít and Polášková, Vendula and Schenková, Jana and Horsák, Michal},
article_number = {6},
doi = {http://dx.doi.org/10.1515/biolog-2016-0084},
keywords = {habitat contrast; spring fen; aquatic macroinvertebrates; habitat specialisation; environmental factors; habitat size},
language = {eng},
issn = {0006-3088},
journal = {Biologia},
title = {Diversity patterns of aquatic specialists and generalists: contrasts among two spring-fen mesohabitats and nearby streams},
volume = {71},
year = {2016}
}
TY - JOUR
ID - 1352225
AU - Hubáčková, Lenka - Rádková, Vanda - Bojková, Jindřiška - Syrovátka, Vít - Polášková, Vendula - Schenková, Jana - Horsák, Michal
PY - 2016
TI - Diversity patterns of aquatic specialists and generalists: contrasts among two spring-fen mesohabitats and nearby streams
JF - Biologia
VL - 71
IS - 6
SP - 678-687
EP - 678-687
SN - 00063088
KW - habitat contrast
KW - spring fen
KW - aquatic macroinvertebrates
KW - habitat specialisation
KW - environmental factors
KW - habitat size
N2 - Habitat specialists and generalists are known to differ in their width of environmental tolerance and their representation can vary along with the ecological contrast of habitats. In this study we explore factors shaping patterns of species richness and abundance of aquatic macroinvertebrate habitat specialists and generalists at isolated spring fens, separately for spring patch and spring brook mesohabitats at each site. We also examined habitat contrast of these unique island-like communities by the comparison of spring fen specialists and habitat generalists shared between the two spring fen mesohabitats and the nearest stream to each of 13 selects fen sites. Aquatic macroinvertebrates (Clitellata, Ephemeroptera, Plecoptera, Trichoptera, and Diptera) were investigated at 62 isolated spring fens, with 357 taxa identified in more than 172,000 individuals collected. We found that specialists experienced a stronger relation to local environmental conditions (i.e. the amount of dissolved oxygen and water conductivity) at both spring mesohabitats than generalists, primarily responding to fen habitat size. In contrast, responses of species abundances at spring patches and spring brooks differed as the abundances were controlled by the amount of oxygen in spring patches and by habitat size in spring brooks. Based on Trichoptera and Diptera assemblages we found a similar contrast between both spring fen sites and nearby streams. Our results suggest a higher resilience of specialist populations in well oxygenated sites and their competitive advantage over generalists at these sites, which stresses the importance to prevent any significant decrease of oxygenation (e.g., by eutrophication or drainage), especially in spring patches.
ER -
HUBÁČKOVÁ, Lenka, Vanda RÁDKOVÁ, Jindřiška BOJKOVÁ, Vít SYROVÁTKA, Vendula POLÁŠKOVÁ, Jana SCHENKOVÁ and Michal HORSÁK. Diversity patterns of aquatic specialists and generalists: contrasts among two spring-fen mesohabitats and nearby streams. \textit{Biologia}. vol.~71, No~6, p.~678-687. ISSN~0006-3088. doi:10.1515/biolog-2016-0084. 2016.
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