Plecoptera taxocenoses and degradation of watercourses in the
Czech Republic: changes after 50 years

a 2012

Plecoptera taxocenoses and degradation of watercourses in the Czech Republic: changes after 50 years

BOJKOVÁ, Jindřiška, Tomáš SOLDÁN and Světlana ZAHRÁDKOVÁ

Basic information

Original name

Plecoptera taxocenoses and degradation of watercourses in the Czech Republic: changes after 50 years

Name in Czech

Společentva pošvatek a degradace vodních toků v České republice: změny po 50 letech

Authors

BOJKOVÁ, Jindřiška, Tomáš SOLDÁN and Světlana ZAHRÁDKOVÁ

Edition

2012

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Organization unit

Faculty of Science

Keywords (in Czech)

pošvatky; antropogenní vlivy; diverzita

Keywords in English

Plecoptera; anthropogenic impacts; species loss

Abstract

V originále

The existence of a unique historical dataset on Plecoptera collected between 1946 and 1960 at 170 sites representatively distributed throughout the Czech Republic enables to compare present and historical species presence/absence data and to evaluate sites changes. The following principle changes of sampling sites affecting stonefly taxocenoses were determined: (i) Construction of large dams, (ii) Construction of other impoundments to regulate discharge regime, (iii) Channelization connected with water quality changes, (iv) Strong pollution or acidification without apparent morphological changes of streams. Seventy sites showed considerable decrease of the number of species; stoneflies completely disappeared from 18 sites. Eighty-one sites showed nearly the same taxocenoses at present (including 13 sites with species-poor taxocenoses already in the past). Total number of species decreased from 77 to 72 (82 species recorded altogether), however the majority of them decreased their frequency. A strong decrease by 50% of earlier occurrences was recorded in 16 sensitive species (e.g., Amphinemura borealis, Perla abdominalis, Protonemura hrabei, and Siphonoperla taurica); eight widespread species showed less considerable decrease. Only 5 species increased their frequency (especially Brachyptera risi and Leuctra geniculata). Nine species have not been found at present (e.g., Amphinemura borealis, Leuctra major, and Marthamea vitripennis)

Links

GPP505/10/P302, research and development project

Name: Složení a struktura taxocenóz pošvatek (Plecoptera): změny diverzity, nároků a rozšíření jednotlivých druhů po 50 letech

Investor: Czech Science Foundation, Spatio-temporal patterns of Plecoptera taxocoenoses: changes in diversity, species requirements and distribution after 50 years

Citovat

BOJKOVÁ, Jindřiška, Tomáš SOLDÁN and Světlana ZAHRÁDKOVÁ. Plecoptera taxocenoses and degradation of watercourses in the Czech Republic: changes after 50 years. 2012.

@proceedings{986773,
   author = {Bojková, Jindřiška and Soldán, Tomáš and Zahrádková, Světlana},
   keywords = {Plecoptera; anthropogenic impacts; species loss},
   language = {eng},
   title = {Plecoptera taxocenoses and degradation of watercourses in the Czech Republic: changes after 50 years},
   year = {2012}
}

TY  - CONF
ID  - 986773
AU  - Bojková, Jindřiška - Soldán, Tomáš - Zahrádková, Světlana
PY  - 2012
TI  - Plecoptera taxocenoses and degradation of watercourses in the Czech Republic: changes after 50 years
KW  - Plecoptera
KW  - anthropogenic impacts
KW  - species loss
N2  - The existence of a unique historical dataset on Plecoptera collected between 1946 and 1960 at 170 sites representatively distributed throughout the Czech Republic enables to compare present and historical species presence/absence data and to evaluate sites changes. The following principle changes of sampling sites affecting stonefly taxocenoses were determined: (i) Construction of large dams, (ii) Construction of other impoundments to regulate discharge regime, (iii) Channelization connected with water quality changes, (iv) Strong pollution or acidification without apparent morphological changes of streams. Seventy sites showed considerable decrease of the number of species; stoneflies completely disappeared from 18 sites. Eighty-one sites showed nearly the same taxocenoses at present (including 13 sites with species-poor taxocenoses already in the past). Total number of species decreased from 77 to 72 (82 species recorded altogether), however the majority of them decreased their frequency. A strong decrease by 50% of earlier occurrences was recorded in 16 sensitive species (e.g., Amphinemura borealis, Perla abdominalis, Protonemura hrabei, and Siphonoperla taurica); eight widespread species showed less considerable decrease. Only 5 species increased their frequency (especially Brachyptera risi and Leuctra geniculata). Nine species have not been found at present (e.g., Amphinemura borealis, Leuctra major, and Marthamea vitripennis)
ER  -

BOJKOVÁ, Jindřiška, Tomáš SOLDÁN and Světlana ZAHRÁDKOVÁ. \textit{Plecoptera taxocenoses and degradation of watercourses in the Czech Republic: changes after 50 years}. 2012.

Detailed Information on Publication Record