Detailed Information on Publication Record
2015
Drivers of aquatic macroinvertebrate richness in spring fens in relation to habitat specialization and dispersal mode
HORSÁK, Michal, Vanda RÁDKOVÁ, Vít SYROVÁTKA, Jindřiška BOJKOVÁ, Vendula POLÁŠKOVÁ et. al.Basic information
Original name
Drivers of aquatic macroinvertebrate richness in spring fens in relation to habitat specialization and dispersal mode
Authors
HORSÁK, Michal (203 Czech Republic, guarantor, belonging to the institution), Vanda RÁDKOVÁ (203 Czech Republic, belonging to the institution), Vít SYROVÁTKA (203 Czech Republic, belonging to the institution), Jindřiška BOJKOVÁ (203 Czech Republic, belonging to the institution), Vendula POLÁŠKOVÁ (203 Czech Republic, belonging to the institution), Jana SCHENKOVÁ (203 Czech Republic, belonging to the institution) and Jana ZAJACOVÁ (203 Czech Republic, belonging to the institution)
Edition
Journal of Biogeography, 2015, 0305-0270
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 3.997
RIV identification code
RIV/00216224:14310/15:00081139
Organization unit
Faculty of Science
UT WoS
000362833700008
Keywords in English
aquatic macroinvertebrates; Carpathian mountains; Central Europe; dispersal; abilities; fen habitats; habitat age; number of species; specialization; species sorting
Tags
International impact, Reviewed
Změněno: 19/1/2021 10:20, Mgr. Jindřiška Bojková, Ph.D.
Abstract
V originále
Aims The aim was to identify the main drivers of aquatic macroinvertebrate species richness in spring-fen habitats (i.e. groundwater seepage wetlands) because these habitats are among the most threatened temperate biodiversity hotspots. Location Isolated spring fens in the western Carpathian Mountains. Methods Assemblages of Tricladida, Clitellata, Mollusca, Ephemeroptera, Plecoptera, Trichoptera and Diptera were sampled at 48 fens distributed evenly along a gradient of water mineral richness and grouped according to habitat specialization and dispersal mode. Several physicochemical parameters that have been reported to be the main drivers of species distribution were recorded for each site, along with radiocarbon measurements of the absolute age of the sites. The numbers of species in the taxonomic groups analysed were modelled as a function of the predictors via multiple linear regressions. Results We achieved a notably higher sampling efficiency than had been used in previous spring aquatic macroinvertebrate studies. In total, we collected and identified 255 species within 331 taxa from > 235,000 individuals. The number of species in all taxonomic groups increased with water discharge but the highest predictive power was obtained with water redox potential, which explained as much as 55.7% of the specialist species richness variance. We found contrasting and systematic differences in the importance of predictors related mainly to the level of species habitat specialization. Species richness of springfen specialists was strongly determined by the main environmental gradient of change in groundwater chemistry, while generalists primarily reflected habitat stability linked to higher water discharge, habitat size and absolute age. Main conclusion Isolated island-like spring fens can harbour unusually species-rich assemblages of aquatic macroinvertebrates, the species richness of which is shaped by contrasting mechanisms dependent mainly on habitat specialization and also partly on dispersal mode. The richness of habitat specialist species seen at calcareous fens indicates their conservation priority.
Links
| GAP505/11/0779, research and development project |
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