Diversity of Macroinvertebrate Communities as a Reflection of Habitat Heterogeneity in a Mountain River Subjected to Variable Human Impacts

Wyżga‬‬, Bartłomiej; Oglęcki, Paweł; Radecki‐Pawlik, Artur; Zawiejska, Joanna

doi:10.1029/2010gm000983

Cited by 12 publications

(24 citation statements)

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“…The river geometry has not been modified by human activities and particular low-flow channels vary in depth, width, slope and sinuosity. The cross-sections are typified by high spatial variability of hydraulic conditions; low-flow channels conveying most flow exhibit high velocities, whereas in lateral braids, frequently disconnected at their upstream end from the main water current and fed by groundwater, low discharge and slow velocities are recorded (Wyżga et al, 2009(Wyżga et al, , 2011. The cross-sections are typified by high spatial variability of hydraulic conditions; low-flow channels conveying most flow exhibit high velocities, whereas in lateral braids, frequently disconnected at their upstream end from the main water current and fed by groundwater, low discharge and slow velocities are recorded (Wyżga et al, 2009(Wyżga et al, , 2011.…”

Section: Reference Conditions and Hydromorphological Quality Of The Cmentioning

confidence: 99%

“…These factors have resulted in three major changes to the rivers and their ecosystems. Changes to hydromorphological quality of the rivers brought about by the channelization and channel incision have exerted significant negative effects on the river biota, reducing the abundance and diversity of fish fauna (Wyżga et al, 2009) as well as the taxonomic richness of benthic invertebrate communities (Wyżga et al, 2011) in the modified river sections. A considerable increase in the flood hazard to downstream reaches of the Carpathian rivers has been recorded following their incision and the resultant reduction of the potential for flood water storage in the floodplain areas (Wyżga, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…The high cross-sectional variability in physical habitat parameters, recorded in the section, results in high heterogeneity of the habitat conditions for aquatic biota, including fish (Wyżga et al, 2009) and benthic invertebrate communities (Wyżga et al, 2011). The section retains considerable quantities of large wood contributing to the diversity of physical and biotic processes .…”

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Environmental change, hydromorphological reference conditions and the restoration of Polish Carpathian rivers

Wyżga‬‬

Zawiejska

Radecki‐Pawlik

et al. 2012

Earth Surf Processes Landf

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In the twentieth century Polish Carpathian rivers were considerably modified by channelization and gravel mining, with significant detrimental effects to their ecological integrity, vertical stability of the streambeds and flood hazard to downstream river reaches. Restoration of the rivers is thus necessary to improve their ecological status and re‐establish geomorphic dynamic equilibrium conditions. Various approaches to defining hydromorphological reference conditions, proposed to date in river restoration literature, have serious deficiencies. In particular, environmental changes that took place in the catchments of Carpathian rivers during the twentieth century invalidate the historical state of the rivers as reference for their restoration. This is illustrated by a change from bar‐braided to island‐braided channel pattern that occurred in the past century in unmanaged sections of the Czarny Dunajec in response to a reduction in flow and sediment dynamics of the river. We indicate that reference conditions should be defined as those which exist or would exist under present environmental conditions in the catchment but without human influence on the channel, riparian zone and floodplain of the river which is to be restored. This assumption was tested through the evaluation of hydromorphological river quality of the Czarny Dunajec according to the European Standard EN‐14614. The evaluation confirmed a high‐status hydromorphological quality in an unmanaged channel section, which can thus be used as a reference for restoration of impacted river sections. Copyright © 2012 John Wiley & Sons, Ltd.

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Section: Reference Conditions and Hydromorphological Quality Of The Cmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Environmental change, hydromorphological reference conditions and the restoration of Polish Carpathian rivers

Wyżga‬‬

Zawiejska

Radecki‐Pawlik

et al. 2012

Earth Surf Processes Landf

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“…However, they have an influence on a number of abiotic and biotic factors, e.g. the volume and velocity of flow, debris transport, bottom/channel shape (Wyżga et al, 2011). These changes affect in various ways particular assemblages of organisms, including benthos (Dukowska, Grzybkowska, 2007;Kukuła, Bylak, 2011) and constitute, among other things, an obstacle to the migration on aquatic organisms, cause depletion of biocenoses (Wyżga et al, 2008;Błachuta et al, 2011) and affect the drifting of invertebrates (Brittain, Eikeland, 1988).…”

Section: Introductionmentioning

confidence: 99%

Assemblages of stonefly larvae (Plecoptera) in the area of small hydrological structures, in the streams of the Kamienica Nawojowska river basin (The Beskid Sądecki)

Niechwiej¹

2017

Acta Biologica

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The study of larval stoneflies was carried out in the years 2010-2011 in the Kamienica Nawojowska river basin. The study involved three left-bank tributaries of the Kamienica Nawojowska River: the Kryściów, Łabowczański Potok and Homerka streams, in the course of which there were present small transverse hydrological structures. In the streams, within the investigated facilities, a large taxonomic richness of stoneflies was discovered. There were no significant differences in taxonomic richness and abundance of organisms forming stonefly clusters between stations situated upstream and downstream from the small transverse hydrological structures, which do not change the volume of the flow. The shape of the clusters in the studied streams and their individual sections were not as much influenced by the presence of small transverse hydrological structures as by other conditions such as: seasonal occurrence of taxa, similar type and structure of the bottom substrate, the way in which the territory of the basin is used. Assemblages of stoneflies were not significantly depleted after regulatory works, which is confirmed by the comparison with the results of previous years.

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“…The influence of anthropogenic factors on the biocenose of flowing water is multidirectional, which results from the impact of, among other things, the volume and velocity of water flow (Poff, Zimmerman, 2010), debris transport and bottom/channel shape (Wyżga et al, 2011), as well as the presence of natural and artificial obstacles (Kajak, 1992). Changes in abiotic and anthropogenic factors, caused by the presence of hydrological structures, affect in various ways individual hydrobiont groupings.…”

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Formation of groupings of mayfly larvae (Ephemeroptera) in the area of small hydrological structures, in the streams of the Kamienica Nawojowska river basin (the Sądeckie Beskids, Poland)

Niechwiej

2016

Ekológia (Bratislava)

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Niechwiej A.: Formation of groupings of mayfly larvae (Ephemeroptera) in the area of small hydrological structures, in the streams of the Kamienica Nawojowska river basin (the Sądeckie Beskids, Poland). Ekológia (Bratislava), Vol. 35, No. 4, p. 320-339, 2016. Anthropogenic modification of abiotic factor in turn influencez biotic communities. The aim of this study was to characterise clusters of mayflies in selected streams of Kamienica Nawojowska river basin in conjunction with small, lateral hydrological structures that have been built in this area. There was an attempt to determine whether and to what extent small lateral hydrological structures affect larvae of mayflies in the examined mountain streams. An analysis of the taxonomic composition of mayfly clusters in the examined stream sections was carried out. For this purpose, the author described the taxonomic wealth, variation in the density of organisms, the domination structure within taxonomic groups and trophic functional groups, taxonomic variation (based on the Shannon-Winner factor), constancy of occurrence (according to the Szujecki formula) as well as faunistic similarity (according to the Jaccard formula). An emphasis was also placed on the species included in the Red List of Vulnerable and Endangered Species in Poland (2002). The obtained results indicate a high taxonomic richness and a large diversity of mayfly fauna on the examined stream sections. There were no significant differences, however, in this aspect between posts situated upstream and downstream from the hydrological structures. The formation of clusters was influenced not so much by small hydrological structures as by other abiotic factors such as the nature of the bottom substrate, the way in which the basin is used, the location of a particular post on a particular watercourse section as well as other anthropogenic activities (e.g. those related to forest management). A comparison of the obtained data with the results of the research conducted before the completion of major regulatory works in Kamienica Nawojowska river basin showed that the mayfly fauna had preserved a large taxonomic richness, although some changes had occurred in the structure of the clusters. However, further research related to this issue is needed, especially in other river basins of the Beskids.

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Diversity of Macroinvertebrate Communities as a Reflection of Habitat Heterogeneity in a Mountain River Subjected to Variable Human Impacts

Cited by 12 publications

References 0 publications

Environmental change, hydromorphological reference conditions and the restoration of Polish Carpathian rivers

Environmental change, hydromorphological reference conditions and the restoration of Polish Carpathian rivers

Assemblages of stonefly larvae (Plecoptera) in the area of small hydrological structures, in the streams of the Kamienica Nawojowska river basin (The Beskid Sądecki)

Formation of groupings of mayfly larvae (Ephemeroptera) in the area of small hydrological structures, in the streams of the Kamienica Nawojowska river basin (the Sądeckie Beskids, Poland)

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