Ecological diatom guilds are useful but not sensitive enough as indicators of extremely changing water regimes

Viktória B-Béres, Péter Török, Zsuzsanna Kókai, Eniko T. Krasznai, B. Tóthmérész, István Bácsi

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Classification of taxa into ecological guilds is based on the relation of respective taxa to nutrient enrichment and their resistance to physical disturbance. We hypothesized that ecological guild's proportion and their taxa composition were strongly effected both by extremely changing water regime and nutrient contents. Diatom composition, guild dynamics and the diatom-based ecological status assessment index were studied in the Sebes-Körös River (South-East Hungary) in a year with extremely changing water regimes. There were highly pronounced changes in species composition during the whole vegetation period including the formation of running and standing water segments in autumn. While the proportions of ecological guilds showed no significant correlations with the studied environmental parameters, they were more balanced in high water discharge period than in the low water discharge period. Taxa compositions of segments were mainly determined by the preferences and strategies of a respective species and/or genera, regardless to their guild affiliation. These results point out that ecological guild characterisation should be refined using ecological knowledge at the subgenus level. We suggest to establish several subdivisions within the guilds to consider the differences in life strategies (CSR model) and life forms, and to implement the accumulated knowledge of nutrient preferences/indication of a respective taxa.

Original languageEnglish
Pages (from-to)191-204
Number of pages14
JournalHydrobiologia
Volume738
Issue number1
DOIs
Publication statusPublished - 2014

Fingerprint

Bacillariophyceae
guild
diatom
water
food enrichment
Hungary
physical disturbance
nutrient content
nutrient enrichment
indicator
autumn
taxonomy
species diversity
vegetation
rivers
nutrients
nutrient
river

Keywords

  • Diatom species composition
  • Diversity
  • Ecological guilds
  • Medium-sized river
  • Water quality

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Ecological diatom guilds are useful but not sensitive enough as indicators of extremely changing water regimes. / B-Béres, Viktória; Török, Péter; Kókai, Zsuzsanna; Krasznai, Eniko T.; Tóthmérész, B.; Bácsi, István.

In: Hydrobiologia, Vol. 738, No. 1, 2014, p. 191-204.

Research output: Contribution to journalArticle

B-Béres, Viktória ; Török, Péter ; Kókai, Zsuzsanna ; Krasznai, Eniko T. ; Tóthmérész, B. ; Bácsi, István. / Ecological diatom guilds are useful but not sensitive enough as indicators of extremely changing water regimes. In: Hydrobiologia. 2014 ; Vol. 738, No. 1. pp. 191-204.
@article{627916c3bb044dc6a4ba766c0618196f,
title = "Ecological diatom guilds are useful but not sensitive enough as indicators of extremely changing water regimes",
abstract = "Classification of taxa into ecological guilds is based on the relation of respective taxa to nutrient enrichment and their resistance to physical disturbance. We hypothesized that ecological guild's proportion and their taxa composition were strongly effected both by extremely changing water regime and nutrient contents. Diatom composition, guild dynamics and the diatom-based ecological status assessment index were studied in the Sebes-K{\"o}r{\"o}s River (South-East Hungary) in a year with extremely changing water regimes. There were highly pronounced changes in species composition during the whole vegetation period including the formation of running and standing water segments in autumn. While the proportions of ecological guilds showed no significant correlations with the studied environmental parameters, they were more balanced in high water discharge period than in the low water discharge period. Taxa compositions of segments were mainly determined by the preferences and strategies of a respective species and/or genera, regardless to their guild affiliation. These results point out that ecological guild characterisation should be refined using ecological knowledge at the subgenus level. We suggest to establish several subdivisions within the guilds to consider the differences in life strategies (CSR model) and life forms, and to implement the accumulated knowledge of nutrient preferences/indication of a respective taxa.",
keywords = "Diatom species composition, Diversity, Ecological guilds, Medium-sized river, Water quality",
author = "Vikt{\'o}ria B-B{\'e}res and P{\'e}ter T{\"o}r{\"o}k and Zsuzsanna K{\'o}kai and Krasznai, {Eniko T.} and B. T{\'o}thm{\'e}r{\'e}sz and Istv{\'a}n B{\'a}csi",
year = "2014",
doi = "10.1007/s10750-014-1929-y",
language = "English",
volume = "738",
pages = "191--204",
journal = "Hydrobiologia",
issn = "0018-8158",
publisher = "Springer Netherlands",
number = "1",

}

TY - JOUR

T1 - Ecological diatom guilds are useful but not sensitive enough as indicators of extremely changing water regimes

AU - B-Béres, Viktória

AU - Török, Péter

AU - Kókai, Zsuzsanna

AU - Krasznai, Eniko T.

AU - Tóthmérész, B.

AU - Bácsi, István

PY - 2014

Y1 - 2014

N2 - Classification of taxa into ecological guilds is based on the relation of respective taxa to nutrient enrichment and their resistance to physical disturbance. We hypothesized that ecological guild's proportion and their taxa composition were strongly effected both by extremely changing water regime and nutrient contents. Diatom composition, guild dynamics and the diatom-based ecological status assessment index were studied in the Sebes-Körös River (South-East Hungary) in a year with extremely changing water regimes. There were highly pronounced changes in species composition during the whole vegetation period including the formation of running and standing water segments in autumn. While the proportions of ecological guilds showed no significant correlations with the studied environmental parameters, they were more balanced in high water discharge period than in the low water discharge period. Taxa compositions of segments were mainly determined by the preferences and strategies of a respective species and/or genera, regardless to their guild affiliation. These results point out that ecological guild characterisation should be refined using ecological knowledge at the subgenus level. We suggest to establish several subdivisions within the guilds to consider the differences in life strategies (CSR model) and life forms, and to implement the accumulated knowledge of nutrient preferences/indication of a respective taxa.

AB - Classification of taxa into ecological guilds is based on the relation of respective taxa to nutrient enrichment and their resistance to physical disturbance. We hypothesized that ecological guild's proportion and their taxa composition were strongly effected both by extremely changing water regime and nutrient contents. Diatom composition, guild dynamics and the diatom-based ecological status assessment index were studied in the Sebes-Körös River (South-East Hungary) in a year with extremely changing water regimes. There were highly pronounced changes in species composition during the whole vegetation period including the formation of running and standing water segments in autumn. While the proportions of ecological guilds showed no significant correlations with the studied environmental parameters, they were more balanced in high water discharge period than in the low water discharge period. Taxa compositions of segments were mainly determined by the preferences and strategies of a respective species and/or genera, regardless to their guild affiliation. These results point out that ecological guild characterisation should be refined using ecological knowledge at the subgenus level. We suggest to establish several subdivisions within the guilds to consider the differences in life strategies (CSR model) and life forms, and to implement the accumulated knowledge of nutrient preferences/indication of a respective taxa.

KW - Diatom species composition

KW - Diversity

KW - Ecological guilds

KW - Medium-sized river

KW - Water quality

UR - http://www.scopus.com/inward/record.url?scp=84905682264&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84905682264&partnerID=8YFLogxK

U2 - 10.1007/s10750-014-1929-y

DO - 10.1007/s10750-014-1929-y

M3 - Article

AN - SCOPUS:84905682264

VL - 738

SP - 191

EP - 204

JO - Hydrobiologia

JF - Hydrobiologia

SN - 0018-8158

IS - 1

ER -