2017
Post-mining calcareous seepages as surrogate habitats for aquatic macroinvertebrate biota of vanishing calcareous spring fens
POLÁŠKOVÁ, Vendula, Jana SCHENKOVÁ, Martina BARTOŠOVÁ, Vanda ŠORFOVÁ, Michal HORSÁK et. al.Základní údaje
Originální název
Post-mining calcareous seepages as surrogate habitats for aquatic macroinvertebrate biota of vanishing calcareous spring fens
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Vydání
Symposium for European Freshwater Sciences, Olomouc, 2017
Další údaje
Typ výsledku
Konferenční abstrakt
Utajení
není předmětem státního či obchodního tajemství
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
seepages, spoil heaps, fens, Diptera, macroinvertebrates
Příznaky
Mezinárodní význam
Změněno: 6. 3. 2018 09:22, Mgr. Lucie Jarošová, DiS.
Anotace
V originále
We studied nine seepages (i.e. spring-fed habitats) located at two neighbouring spoil heaps in the North-Bohemian brown-coal basin (Czech Republic), characterised by basic water pH, calcium carbonate precipitation, high heavy metal and sulphate concentrations. Along with these nine artificial calcareous seepages, we also sampled macroinvertebrates at 15 natural and well-preserved calcareous spring fens to compare species richness and assemblage similarity between these two specific systems. Our study revealed that post-mining calcareous seepages harboured unusually taxa-rich macroinvertebrate assemblages (158 taxa), despite their harsh conditions related to extreme water chemistry. Diptera with 85 taxa were the most diverse group reaching comparable taxa richness as dipteran assemblages in natural calcareous spring fens. According to Sørensen pair-wise dissimilarity, dipteran assemblages of post-mining and natural sites were more similar in the composition of habitat specialists than that of generalists, showing a strict relation of specialist assemblages to specific environmental conditions of post-mining and natural sites. We can therefore conclude that calcareous post-mining seepages may provide biodiversity refuges for a high number of aquatic invertebrates, including spring habitat specialists and nationally threatened species.
Návaznosti
GA16-03881S, projekt VaV |
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MUNI/A/0788/2013, interní kód MU |
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