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More than one million barriers fragment Europe’s rivers

Josh Jones Orcid Logo, Barbara Belletti, Carlos Garcia De Leaniz Orcid Logo, Joshua Jones, Simone Bizzi, Luca Borger Orcid Logo, Gilles Segura, Andrea Castelletti, Wouter van de Bund, Kim Aarestrup, James Barry, Kamila Belka, Arjan Berkhuysen, Kim Birnie-Gauvin, Martina Bussettini, Mauro Carolli, Sofia Consuegra del Olmo Orcid Logo, Eduardo Dopico, Tim Feierfeil, Sara Fernández, Pao Fernandez Garrido, Eva Garcia-Vazquez, Sara Garrido, Guillermo Giannico, Peter Gough, Niels Jepsen, Peter E. Jones, Paul Kemp, Jim Kerr, James King, Małgorzata Łapińska, Gloria Lázaro, Martyn C. Lucas, Lucio Marcello, Patrick Martin, Phillip McGinnity, Jesse O’Hanley, Rosa Olivo del Amo, Piotr Parasiewicz, Martin Pusch, Gonzalo Rincon, Cesar Rodriguez, Joshua Royte, Claus Till Schneider, Jeroen S. Tummers, Sergio Vallesi, Andrew Vowles, Eric Verspoor, Herman Wanningen, Karl M. Wantzen, Laura Wildman, Maciej Zalewski

Nature, Volume: 588, Issue: 7838, Pages: 436 - 441

Swansea University Authors: Josh Jones Orcid Logo, Carlos Garcia De Leaniz Orcid Logo, Luca Borger Orcid Logo, Sofia Consuegra del Olmo Orcid Logo

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DOI (Published version): 10.1038/s41586-020-3005-2

Abstract

Rivers support some of Earth’s richest biodiversity and provide essential ecosystemservices to society, but they are often fragmented by barriers to free flow. In Europe,attempts to quantify river connectivity have been hampered by the absence of aharmonized barrier database. Here we show that there...

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Published in: Nature
ISSN: 0028-0836 1476-4687
Published: Springer Science and Business Media LLC 2020
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In Europe,attempts to quantify river connectivity have been hampered by the absence of aharmonized barrier database. Here we show that there are at least 1.2 million instreambarriers in 36 European countries (with a mean density of 0.74 barriers per kilometre),68 per cent of which are structures less than two metres in height that are oftenoverlooked. Standardized walkover surveys along 2,715 kilometres of stream lengthfor 147 rivers indicate that existing records underestimate barrier numbers by about61 per cent. The highest barrier densities occur in the heavily modified rivers ofcentral Europe and the lowest barrier densities occur in the most remote, sparselypopulated alpine areas. Across Europe, the main predictors of barrier density areagricultural pressure, density of river-road crossings, extent of surface water andelevation. Relatively unfragmented rivers are still found in the Balkans, the Balticstates and parts of Scandinavia and southern Europe, but these require urgentprotection from proposed dam developments. Our findings could inform theimplementation of the EU Biodiversity Strategy, which aims to reconnect 25,000kilometres of Europe&#x2019;s rivers by 2030, but achieving this will require a paradigm shiftin river restoration that recognizes the widespread impacts caused by small barriers.</abstract><type>Journal Article</type><journal>Nature</journal><volume>588</volume><journalNumber>7838</journalNumber><paginationStart>436</paginationStart><paginationEnd>441</paginationEnd><publisher>Springer Science and Business Media LLC</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>0028-0836</issnPrint><issnElectronic>1476-4687</issnElectronic><keywords/><publishedDay>17</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2020</publishedYear><publishedDate>2020-12-17</publishedDate><doi>10.1038/s41586-020-3005-2</doi><url/><notes/><college>COLLEGE NANME</college><department>Biosciences</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>SBI</DepartmentCode><institution>Swansea University</institution><apcterm/><funders>EU Horizon 2020</funders><lastEdited>2021-03-08T10:05:18.2405995</lastEdited><Created>2020-12-18T12:06:14.7113641</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Biosciences, Geography and Physics - Biosciences</level></path><authors><author><firstname>Josh</firstname><surname>Jones</surname><orcid>0000-0001-9047-9147</orcid><order>1</order></author><author><firstname>Barbara</firstname><surname>Belletti</surname><order>2</order></author><author><firstname>Carlos</firstname><surname>Garcia De Leaniz</surname><orcid>0000-0003-1650-2729</orcid><order>3</order></author><author><firstname>Joshua</firstname><surname>Jones</surname><order>4</order></author><author><firstname>Simone</firstname><surname>Bizzi</surname><order>5</order></author><author><firstname>Luca</firstname><surname>Borger</surname><orcid>0000-0001-8763-5997</orcid><order>6</order></author><author><firstname>Gilles</firstname><surname>Segura</surname><order>7</order></author><author><firstname>Andrea</firstname><surname>Castelletti</surname><order>8</order></author><author><firstname>Wouter van de</firstname><surname>Bund</surname><order>9</order></author><author><firstname>Kim</firstname><surname>Aarestrup</surname><order>10</order></author><author><firstname>James</firstname><surname>Barry</surname><order>11</order></author><author><firstname>Kamila</firstname><surname>Belka</surname><order>12</order></author><author><firstname>Arjan</firstname><surname>Berkhuysen</surname><order>13</order></author><author><firstname>Kim</firstname><surname>Birnie-Gauvin</surname><order>14</order></author><author><firstname>Martina</firstname><surname>Bussettini</surname><order>15</order></author><author><firstname>Mauro</firstname><surname>Carolli</surname><order>16</order></author><author><firstname>Sofia</firstname><surname>Consuegra del Olmo</surname><orcid>0000-0003-4403-2509</orcid><order>17</order></author><author><firstname>Eduardo</firstname><surname>Dopico</surname><order>18</order></author><author><firstname>Tim</firstname><surname>Feierfeil</surname><order>19</order></author><author><firstname>Sara</firstname><surname>Fern&#xE1;ndez</surname><order>20</order></author><author><firstname>Pao Fernandez</firstname><surname>Garrido</surname><order>21</order></author><author><firstname>Eva</firstname><surname>Garcia-Vazquez</surname><order>22</order></author><author><firstname>Sara</firstname><surname>Garrido</surname><order>23</order></author><author><firstname>Guillermo</firstname><surname>Giannico</surname><order>24</order></author><author><firstname>Peter</firstname><surname>Gough</surname><order>25</order></author><author><firstname>Niels</firstname><surname>Jepsen</surname><order>26</order></author><author><firstname>Peter E.</firstname><surname>Jones</surname><order>27</order></author><author><firstname>Paul</firstname><surname>Kemp</surname><order>28</order></author><author><firstname>Jim</firstname><surname>Kerr</surname><order>29</order></author><author><firstname>James</firstname><surname>King</surname><order>30</order></author><author><firstname>Ma&#x142;gorzata</firstname><surname>&#x141;api&#x144;ska</surname><order>31</order></author><author><firstname>Gloria</firstname><surname>L&#xE1;zaro</surname><order>32</order></author><author><firstname>Martyn C.</firstname><surname>Lucas</surname><order>33</order></author><author><firstname>Lucio</firstname><surname>Marcello</surname><order>34</order></author><author><firstname>Patrick</firstname><surname>Martin</surname><order>35</order></author><author><firstname>Phillip</firstname><surname>McGinnity</surname><order>36</order></author><author><firstname>Jesse</firstname><surname>O&#x2019;Hanley</surname><order>37</order></author><author><firstname>Rosa 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spelling 2021-03-08T10:05:18.2405995 v2 55914 2020-12-18 More than one million barriers fragment Europe’s rivers ba449bb58016ff34c4c18abadabb40c6 0000-0001-9047-9147 Josh Jones Josh Jones true false 1c70acd0fd64edb0856b7cf34393ab02 0000-0003-1650-2729 Carlos Garcia De Leaniz Carlos Garcia De Leaniz true false 8416d0ffc3cccdad6e6d67a455e7c4a2 0000-0001-8763-5997 Luca Borger Luca Borger true false 241f2810ab8f56be53ca8af23e384c6e 0000-0003-4403-2509 Sofia Consuegra del Olmo Sofia Consuegra del Olmo true false 2020-12-18 SBI Rivers support some of Earth’s richest biodiversity and provide essential ecosystemservices to society, but they are often fragmented by barriers to free flow. In Europe,attempts to quantify river connectivity have been hampered by the absence of aharmonized barrier database. Here we show that there are at least 1.2 million instreambarriers in 36 European countries (with a mean density of 0.74 barriers per kilometre),68 per cent of which are structures less than two metres in height that are oftenoverlooked. Standardized walkover surveys along 2,715 kilometres of stream lengthfor 147 rivers indicate that existing records underestimate barrier numbers by about61 per cent. The highest barrier densities occur in the heavily modified rivers ofcentral Europe and the lowest barrier densities occur in the most remote, sparselypopulated alpine areas. Across Europe, the main predictors of barrier density areagricultural pressure, density of river-road crossings, extent of surface water andelevation. Relatively unfragmented rivers are still found in the Balkans, the Balticstates and parts of Scandinavia and southern Europe, but these require urgentprotection from proposed dam developments. Our findings could inform theimplementation of the EU Biodiversity Strategy, which aims to reconnect 25,000kilometres of Europe’s rivers by 2030, but achieving this will require a paradigm shiftin river restoration that recognizes the widespread impacts caused by small barriers. Journal Article Nature 588 7838 436 441 Springer Science and Business Media LLC 0028-0836 1476-4687 17 12 2020 2020-12-17 10.1038/s41586-020-3005-2 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University EU Horizon 2020 2021-03-08T10:05:18.2405995 2020-12-18T12:06:14.7113641 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Josh Jones 0000-0001-9047-9147 1 Barbara Belletti 2 Carlos Garcia De Leaniz 0000-0003-1650-2729 3 Joshua Jones 4 Simone Bizzi 5 Luca Borger 0000-0001-8763-5997 6 Gilles Segura 7 Andrea Castelletti 8 Wouter van de Bund 9 Kim Aarestrup 10 James Barry 11 Kamila Belka 12 Arjan Berkhuysen 13 Kim Birnie-Gauvin 14 Martina Bussettini 15 Mauro Carolli 16 Sofia Consuegra del Olmo 0000-0003-4403-2509 17 Eduardo Dopico 18 Tim Feierfeil 19 Sara Fernández 20 Pao Fernandez Garrido 21 Eva Garcia-Vazquez 22 Sara Garrido 23 Guillermo Giannico 24 Peter Gough 25 Niels Jepsen 26 Peter E. Jones 27 Paul Kemp 28 Jim Kerr 29 James King 30 Małgorzata Łapińska 31 Gloria Lázaro 32 Martyn C. Lucas 33 Lucio Marcello 34 Patrick Martin 35 Phillip McGinnity 36 Jesse O’Hanley 37 Rosa Olivo del Amo 38 Piotr Parasiewicz 39 Martin Pusch 40 Gonzalo Rincon 41 Cesar Rodriguez 42 Joshua Royte 43 Claus Till Schneider 44 Jeroen S. Tummers 45 Sergio Vallesi 46 Andrew Vowles 47 Eric Verspoor 48 Herman Wanningen 49 Karl M. Wantzen 50 Laura Wildman 51 Maciej Zalewski 52 55914__19007__f0791209391a4d0092fd60235c973884.pdf 55914.AAM.EU fragmentation.pdf 2021-01-08T17:25:54.7313442 Output 1360217 application/pdf Accepted Manuscript true 2021-06-16T00:00:00.0000000 true eng 72 true true
title More than one million barriers fragment Europe’s rivers
spellingShingle More than one million barriers fragment Europe’s rivers
Josh Jones
Carlos Garcia De Leaniz
Luca Borger
Sofia Consuegra del Olmo
title_short More than one million barriers fragment Europe’s rivers
title_full More than one million barriers fragment Europe’s rivers
title_fullStr More than one million barriers fragment Europe’s rivers
title_full_unstemmed More than one million barriers fragment Europe’s rivers
title_sort More than one million barriers fragment Europe’s rivers
author_id_str_mv ba449bb58016ff34c4c18abadabb40c6
1c70acd0fd64edb0856b7cf34393ab02
8416d0ffc3cccdad6e6d67a455e7c4a2
241f2810ab8f56be53ca8af23e384c6e
author_id_fullname_str_mv ba449bb58016ff34c4c18abadabb40c6_***_Josh Jones
1c70acd0fd64edb0856b7cf34393ab02_***_Carlos Garcia De Leaniz
8416d0ffc3cccdad6e6d67a455e7c4a2_***_Luca Borger
241f2810ab8f56be53ca8af23e384c6e_***_Sofia Consuegra del Olmo
author Josh Jones
Carlos Garcia De Leaniz
Luca Borger
Sofia Consuegra del Olmo
author2 Josh Jones
Barbara Belletti
Carlos Garcia De Leaniz
Joshua Jones
Simone Bizzi
Luca Borger
Gilles Segura
Andrea Castelletti
Wouter van de Bund
Kim Aarestrup
James Barry
Kamila Belka
Arjan Berkhuysen
Kim Birnie-Gauvin
Martina Bussettini
Mauro Carolli
Sofia Consuegra del Olmo
Eduardo Dopico
Tim Feierfeil
Sara Fernández
Pao Fernandez Garrido
Eva Garcia-Vazquez
Sara Garrido
Guillermo Giannico
Peter Gough
Niels Jepsen
Peter E. Jones
Paul Kemp
Jim Kerr
James King
Małgorzata Łapińska
Gloria Lázaro
Martyn C. Lucas
Lucio Marcello
Patrick Martin
Phillip McGinnity
Jesse O’Hanley
Rosa Olivo del Amo
Piotr Parasiewicz
Martin Pusch
Gonzalo Rincon
Cesar Rodriguez
Joshua Royte
Claus Till Schneider
Jeroen S. Tummers
Sergio Vallesi
Andrew Vowles
Eric Verspoor
Herman Wanningen
Karl M. Wantzen
Laura Wildman
Maciej Zalewski
format Journal article
container_title Nature
container_volume 588
container_issue 7838
container_start_page 436
publishDate 2020
institution Swansea University
issn 0028-0836
1476-4687
doi_str_mv 10.1038/s41586-020-3005-2
publisher Springer Science and Business Media LLC
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 1
active_str 0
description Rivers support some of Earth’s richest biodiversity and provide essential ecosystemservices to society, but they are often fragmented by barriers to free flow. In Europe,attempts to quantify river connectivity have been hampered by the absence of aharmonized barrier database. Here we show that there are at least 1.2 million instreambarriers in 36 European countries (with a mean density of 0.74 barriers per kilometre),68 per cent of which are structures less than two metres in height that are oftenoverlooked. Standardized walkover surveys along 2,715 kilometres of stream lengthfor 147 rivers indicate that existing records underestimate barrier numbers by about61 per cent. The highest barrier densities occur in the heavily modified rivers ofcentral Europe and the lowest barrier densities occur in the most remote, sparselypopulated alpine areas. Across Europe, the main predictors of barrier density areagricultural pressure, density of river-road crossings, extent of surface water andelevation. Relatively unfragmented rivers are still found in the Balkans, the Balticstates and parts of Scandinavia and southern Europe, but these require urgentprotection from proposed dam developments. Our findings could inform theimplementation of the EU Biodiversity Strategy, which aims to reconnect 25,000kilometres of Europe’s rivers by 2030, but achieving this will require a paradigm shiftin river restoration that recognizes the widespread impacts caused by small barriers.
published_date 2020-12-17T04:10:28Z
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score 11.016235

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