The potential role of tributaries as seed sources to an impoundment in Northern Sweden: a field experiment with seed mimics
Abstract Fragmentation and flow regulation of rivers by large dams are known to obstruct the longitudinal dispersal of waterborne plant propagules between impoundments, and to affect plant community composition. However, even several decades after a dam has been built, impoundments may still have a...
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crwiley:10.1002/rra.1014 2024-06-02T08:12:09+00:00 The potential role of tributaries as seed sources to an impoundment in Northern Sweden: a field experiment with seed mimics Bång, Åsa Nilsson, Christer Holm, Svante 2007 http://dx.doi.org/10.1002/rra.1014 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Frra.1014 https://onlinelibrary.wiley.com/doi/pdf/10.1002/rra.1014 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor River Research and Applications volume 23, issue 10, page 1049-1057 ISSN 1535-1459 1535-1467 journal-article 2007 crwiley https://doi.org/10.1002/rra.1014 2024-05-03T10:40:14Z Abstract Fragmentation and flow regulation of rivers by large dams are known to obstruct the longitudinal dispersal of waterborne plant propagules between impoundments, and to affect plant community composition. However, even several decades after a dam has been built, impoundments may still have a relatively species‐rich riparian flora. We hypothesized that free‐flowing tributaries act as the major gene pools for such impoundments, thus alleviating the fragmenting effect large dams have on the main channel. The importance of tributaries as seed sources was tested by releasing wooden seed mimics in three different‐sized (0.22–6.93 m 3 s −1 ) tributaries of an impoundment in the Ume River in Northern Sweden. In each tributary seed mimics were released, during the spring flood peak, from three points approximately 1, 2 and 3 km upstream the outlet in the impoundment. The importance of a tributary as a seed source increased with tributary size. Of the 9000 released seed mimics 1.5% reached the impoundment; 1.2% of the 9000 originated from the largest tributary and 0.3% from the middle‐sized one. The smallest tributary retained all its mimics. Copyright © 2007 John Wiley & Sons, Ltd. Article in Journal/Newspaper Northern Sweden Wiley Online Library River Research and Applications 23 10 1049 1057 |
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English |
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Abstract Fragmentation and flow regulation of rivers by large dams are known to obstruct the longitudinal dispersal of waterborne plant propagules between impoundments, and to affect plant community composition. However, even several decades after a dam has been built, impoundments may still have a relatively species‐rich riparian flora. We hypothesized that free‐flowing tributaries act as the major gene pools for such impoundments, thus alleviating the fragmenting effect large dams have on the main channel. The importance of tributaries as seed sources was tested by releasing wooden seed mimics in three different‐sized (0.22–6.93 m 3 s −1 ) tributaries of an impoundment in the Ume River in Northern Sweden. In each tributary seed mimics were released, during the spring flood peak, from three points approximately 1, 2 and 3 km upstream the outlet in the impoundment. The importance of a tributary as a seed source increased with tributary size. Of the 9000 released seed mimics 1.5% reached the impoundment; 1.2% of the 9000 originated from the largest tributary and 0.3% from the middle‐sized one. The smallest tributary retained all its mimics. Copyright © 2007 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Bång, Åsa Nilsson, Christer Holm, Svante |
spellingShingle |
Bång, Åsa Nilsson, Christer Holm, Svante The potential role of tributaries as seed sources to an impoundment in Northern Sweden: a field experiment with seed mimics |
author_facet |
Bång, Åsa Nilsson, Christer Holm, Svante |
author_sort |
Bång, Åsa |
title |
The potential role of tributaries as seed sources to an impoundment in Northern Sweden: a field experiment with seed mimics |
title_short |
The potential role of tributaries as seed sources to an impoundment in Northern Sweden: a field experiment with seed mimics |
title_full |
The potential role of tributaries as seed sources to an impoundment in Northern Sweden: a field experiment with seed mimics |
title_fullStr |
The potential role of tributaries as seed sources to an impoundment in Northern Sweden: a field experiment with seed mimics |
title_full_unstemmed |
The potential role of tributaries as seed sources to an impoundment in Northern Sweden: a field experiment with seed mimics |
title_sort |
potential role of tributaries as seed sources to an impoundment in northern sweden: a field experiment with seed mimics |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1002/rra.1014 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Frra.1014 https://onlinelibrary.wiley.com/doi/pdf/10.1002/rra.1014 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
River Research and Applications volume 23, issue 10, page 1049-1057 ISSN 1535-1459 1535-1467 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/rra.1014 |
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River Research and Applications |
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23 |
container_issue |
10 |
container_start_page |
1049 |
op_container_end_page |
1057 |
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1800758496823607296 |