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@article{1070636,
author = {Bojková, Jindřiška and Komprdová, Klára and Soldán, Tomáš and Zahrádková, Světlana},
article_location = {Danvers},
article_number = {12},
doi = {http://dx.doi.org/10.1111/fwb.12027},
keywords = {anthropogenic impact; long-term changes; species extinction; species range; species-response curves},
language = {eng},
issn = {0046-5070},
journal = {Freshwater Biology},
title = {Species loss of stoneflies (Plecoptera) in the Czech Republic during the 20th century},
volume = {57},
year = {2012}
}
TY - JOUR
ID - 1070636
AU - Bojková, Jindřiška - Komprdová, Klára - Soldán, Tomáš - Zahrádková, Světlana
PY - 2012
TI - Species loss of stoneflies (Plecoptera) in the Czech Republic during the 20th century
JF - Freshwater Biology
VL - 57
IS - 12
SP - 2550-2567
EP - 2550-2567
PB - Blackwell Science
SN - 00465070
KW - anthropogenic impact
KW - long-term changes
KW - species extinction
KW - species range
KW - species-response curves
N2 - 1. Rapid expansion and intensification of anthropogenic activities in the 20th century has caused profound changes in freshwater assemblages. Unfortunately, knowledge of the extent and causes of species loss (SL) is limited due to the lack of reliable historical data. An unusual data set allows us to compare changes in the most sensitive of aquatic insect orders, the Plecoptera, at some 170 locations in the Czech Republic between two time periods, 19551960 and 20062010. Historical data (18901911) on assemblages of six lowland rivers allow us to infer even earlier changes. 2. Regional stonefly diversity decreased in the first half of the 20th century. Streams at lower altitudes lost a substantial number of species, which were never recovered. In the second half of the century, large-scale anthropogenic pressure caused SL in all habitats, leading to a dissimilarity of contemporary and previous assemblages. The greatest changes were found at sites affected by organic pollution and a mixture of organic pollution and channelisation or impoundment. Colonisation of new habitats was observed in only three of the 80 species evaluated. 3. Species of moderate habitat specialisation and tolerance to organic pollution were most likely to be lost. Those with narrow specialisations in protected habitats were present in both historical and contemporary collections. 4. Contemporary assemblages are the consequence of more than a 100 years of anthropogenic impacts. In particular, streams at lower altitude and draining intensively exploited landscapes host a mere fragment of the original species complement. Most stonefly species are less frequently present than before, although their assemblages remain almost intact in near-natural mountain streams. Our analyses demonstrate dramatic restriction of species ranges and, in some cases, apparent changes in altitudinal preference throughout the area.
ER -
BOJKOVÁ, Jindřiška, Klára KOMPRDOVÁ, Tomáš SOLDÁN and Světlana ZAHRÁDKOVÁ. Species loss of stoneflies (Plecoptera) in the Czech Republic during the 20th century (Species loss of stoneflies (Plecoptera) in the Czech Republic over the 20th century). \textit{Freshwater Biology}. Danvers: Blackwell Science, 2012, vol.~57, No~12, p.~2550-2567. ISSN~0046-5070. Available from: https://dx.doi.org/10.1111/fwb.12027.
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