Már online elérhető a legújabb cikkünk! A kovaalga-közösségek szélsőséges vízjárás melletti változásairól
szóló cikkünk a Hydrobiologia című tudományos folyóiratban jelent meg (B-Béres V., Török P., Kókai Zs., T Krasznai E., Tóthmérész B., Bácsi I.
(submitted): Ecological behaviour of diatom guilds during an extremely
changing water regime: empirical evidences from a lowland river of
Central-Europe. Hydrobiologia, DOI: 10.1007/s10750-014-1929-y).
A közlemény letölthető a folyóirat honlapjáról és saját használatra Török Péter honlapjáról is.
Az összefoglaló az alábbiakban olvasható:
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-Koros 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.
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