No country for old perennial streams alias Czech drying through
the looking glass

a 2018

No country for old perennial streams alias Czech drying through the looking glass

PAŘIL, Petr; Marek POLÁŠEK; Michal STRAKA; Vendula POLÁŠKOVÁ; Barbora LOSKOTOVÁ et al.

Základní údaje

Originální název

No country for old perennial streams alias Czech drying through the looking glass

Autoři

PAŘIL, Petr; Marek POLÁŠEK; Michal STRAKA; Vendula POLÁŠKOVÁ; Barbora LOSKOTOVÁ; Alena DOSTÁLOVÁ a Světlana ZAHRÁDKOVÁ

Vydání

Book of abstracts, 3rd Central European Symposium for Aquatic Macroinvertebrate Research (CESAMIR), Lodz, Poland, p. 53, 2018

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10617 Marine biology, freshwater biology, limnology

Stát vydavatele

Polsko

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/18:00103305

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

climate change; stream drying; aquatic macroinvertebrates; terrestrial environment

Příznaky

Mezinárodní význam

Změněno: 9. 1. 2019 15:30, Mgr. Alena Dostálová

Anotace

V originále

Intermittent streams have been overlooked by limnologists for decades although rising water scarcity induced by climate change accompanied by anthropogenic alterations of catchments, drying impacts on stream biota are now studied more extensively. Supra-seasonal drought in last 5 years strongly altered flow regime in many Czech streams. Thus, in some south-eastern regions it is not easy to find small flowing stream after summer heat waves, if it is not fed by wastewater treatment plant. Some stream channels become a terrestrial ecosystem for prevalent part of a year and they are colonised by terrestrial biota, however specific part of aquatic community is able to survive in moist riverbed sediment. Resistance of such macroinvertebrates is related to humidity but also to substrate structure (permeability), channel morphology and overall diversity of habitats. By way of contrast, the dry riverbed is new and relatively unique bare habitat for terrestrial invertebrates, which is often missing in many Czech heavily modified rivers. Furthermore, dry channels can be attractive for terrestrial vertebrates either immediately after dry phase onset as source of food or later as easily passable migratory corridor. Residual pools, especially those fed by groundwater, can be an important refuge (especially for fish) and may host specific aquatic macroinvertebrate community, which differs remarkably from communities occurring during the flow phase. Autumn (in last years even winter) flow resumption is delayed to cold part of season when recolonization runs slowly. Thus, repeated extensive stream drying gradually selects the most drying resistant and resilient taxa, which leads towards the whole community transformation. These processes can be further accelerated by impact of anthropogenic pollution associated with hydromorphological degradation and land-use alteration. For ecologist it is very challenging to study these phenomena and suggest suitable catchment management which enables long term survival of this specific biodiversity. Research was supported by INTER-COST (LTC17017) project and based also on results of BIODROUGHT project (www.biodrought.eu).

Návaznosti

LTC17017, projekt VaV

Název: Validace bioindikačních metod jako nástrojů pro udržitelný management středoevropských vysychavých toků a přenos těchto metod do praxe (Akronym: InterStreaM)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Validace bioindikačních metod jako nástrojů pro udržitelný management středoevropských vysychavých toků a přenos těchto metod do praxe, INTER-COST

Citovat

PAŘIL, Petr; Marek POLÁŠEK; Michal STRAKA; Vendula POLÁŠKOVÁ; Barbora LOSKOTOVÁ; Alena DOSTÁLOVÁ a Světlana ZAHRÁDKOVÁ. No country for old perennial streams alias Czech drying through the looking glass. In Book of abstracts, 3rd Central European Symposium for Aquatic Macroinvertebrate Research (CESAMIR), Lodz, Poland, p. 53. 2018.

@proceedings{1424191,
   author = {Pařil, Petr and Polášek, Marek and Straka, Michal and Polášková, Vendula and Loskotová, Barbora and Dostálová, Alena and Zahrádková, Světlana},
   booktitle = {Book of abstracts, 3rd Central European Symposium for Aquatic Macroinvertebrate Research (CESAMIR), Lodz, Poland, p. 53},
   keywords = {climate change; stream drying; aquatic macroinvertebrates; terrestrial environment},
   language = {eng},
   title = {No country for old perennial streams alias Czech drying through the looking glass},
   year = {2018}
}

TY  - CONF
ID  - 1424191
AU  - Pařil, Petr - Polášek, Marek - Straka, Michal - Polášková, Vendula - Loskotová, Barbora - Dostálová, Alena - Zahrádková, Světlana
PY  - 2018
TI  - No country for old perennial streams alias Czech drying through the looking glass
KW  - climate change
KW  - stream drying
KW  - aquatic macroinvertebrates
KW  - terrestrial environment
N2  - Intermittent streams have been overlooked by limnologists for decades although rising water scarcity induced by climate change accompanied by anthropogenic alterations of catchments, drying impacts on stream biota are now studied more extensively. Supra-seasonal drought in last 5 years strongly altered flow regime in many Czech streams. Thus, in some south-eastern regions it is not easy to find small flowing stream after summer heat waves, if it is not fed by wastewater treatment plant. Some stream channels become a terrestrial ecosystem for prevalent part of a year and they are colonised by terrestrial biota, however specific part of aquatic community is able to survive in moist riverbed sediment. Resistance of such macroinvertebrates is related to humidity but also to substrate structure (permeability), channel morphology and overall diversity of habitats. By way of contrast, the dry riverbed is new and relatively unique bare habitat for terrestrial invertebrates, which is often missing in many Czech heavily modified rivers. Furthermore, dry channels can be attractive for terrestrial vertebrates either immediately after dry phase onset as source of food or later as easily passable migratory corridor. Residual pools, especially those fed by groundwater, can be an important refuge (especially for fish) and may host specific aquatic macroinvertebrate community, which differs remarkably from communities occurring during the flow phase. Autumn (in last years even winter) flow resumption is delayed to cold part of season when recolonization runs slowly. Thus, repeated extensive stream drying gradually selects the most drying resistant and resilient taxa, which leads towards the whole community transformation. These processes can be further accelerated by impact of anthropogenic pollution associated with hydromorphological degradation and land-use alteration. For ecologist it is very challenging to study these phenomena and suggest suitable catchment management which enables long term survival of this specific biodiversity. Research was supported by INTER-COST (LTC17017) project and based also on results of BIODROUGHT project (www.biodrought.eu).
ER  -

PAŘIL, Petr; Marek POLÁŠEK; Michal STRAKA; Vendula POLÁŠKOVÁ; Barbora LOSKOTOVÁ; Alena DOSTÁLOVÁ a Světlana ZAHRÁDKOVÁ. No country for old perennial streams alias Czech drying through the looking glass. In \textit{Book of abstracts, 3rd Central European Symposium for Aquatic Macroinvertebrate Research (CESAMIR), Lodz, Poland, p. 53}. 2018.

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