Functional diversity of macrophyte communities within and between Pyrenean lakes
Submersed vegetation is a common feature in about 70% Pyrene an high mountain (>1500 m a.s.l.) lakes. Isoetids and soft-water elodeids are common elements of this underw ater flora and can form distinct vegetation units (i.e. patches of vegetation dominated by different species) within complex mo...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/64584 |
| Acceso en línea: | https://hdl.handle.net/2445/64584 |
| Access Level: | acceso abierto |
| Palabra clave: | Llacs Macròfits Reacció d'oxidació-reducció Pirineus Nutrients (Medi ambient) Sediments fluvials Lakes Macrophytes Oxidation-reduction reaction Pyrenees Nutrients (Ecology) River sediments |
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Functional diversity of macrophyte communities within and between Pyrenean lakesGacia i Passola, EsperançaChappuis, EglantineLumbreras, AnaRiera, Joan LluísBallesteros i Sagarra, Enric, 1958-LlacsMacròfitsReacció d'oxidació-reduccióPirineusNutrients (Medi ambient)Sediments fluvialsLakesMacrophytesOxidation-reduction reactionPyreneesNutrients (Ecology)River sedimentsSubmersed vegetation is a common feature in about 70% Pyrene an high mountain (>1500 m a.s.l.) lakes. Isoetids and soft-water elodeids are common elements of this underw ater flora and can form distinct vegetation units (i.e. patches of vegetation dominated by different species) within complex mosaics of vegetation in shallow waters (<7 m). Since is oetids exert a strong influence on sediment biogeochemistry due to high radial oxygen loss, we examined the small scale characteristics of the lake environment (water and sediment) associated to vegetation patches in order to ascertain potential functional differences among them. To do so, we characterised the species composition and biomass of the main vegetation units from 11 lakes, defined plant communities based on biomass data, and then related each community with sediment properties (redox and dissolved nutrient concentration in the pore water) and water nutrient concentration within plant canopy. We also characterised lake water and sediment in areas without vegetation as a reference. A total of twenty-one vegetation units were identified, ranging from one to five per lake. A cluster analysis on biomass species composition suggested seven different macrophyte communities that were named after the most dominant species:Nitella sp.,Potamogeton praelongus, Myriophyllum alterniflorum, Sparganium angustifolium , Isoetes echinospora,Isoetes lacustris and Carex rostrata . Coupling between macrophyte communities and their immediate environment (overlying water and sediment) was manifested mainly as variation in sediment redox conditions and the dominant form of inorganic nitrogen in pore-water. These effects depended on the specific compositi on of the community, and on the allocation between above- and belowground biomass, and could be predicted with a model relating the average and standard deviation of sediment redox potential from 0 down to -20 cm, across macrophyte communities. Differences in pore-water total dissolved phosphorus were related to the trophic state of the lakes. There was no correlation between sediment and water column dissolved nutrients. However, nitrate concentrations tended to be lower in the water overlaying isoetid communities, in apparent contradiction to the patterns of dissolved nitrates in the pore-water. These tendencies were robust even when comparing the water over laying communities within the same lake, thus pointing towards a potential effect of isoetids in reducing dissolved nitrogen in the lakes.PAGEPress2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/64584Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a:Journal of Limnology, 2009, vol. 68, num. 1, p. 25-36cc-by-nc (c) PAGEPress, 2009http://creativecommons.org/licenses/by-nc/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/645842026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
Functional diversity of macrophyte communities within and between Pyrenean lakes |
| title |
Functional diversity of macrophyte communities within and between Pyrenean lakes |
| spellingShingle |
Functional diversity of macrophyte communities within and between Pyrenean lakes Gacia i Passola, Esperança Llacs Macròfits Reacció d'oxidació-reducció Pirineus Nutrients (Medi ambient) Sediments fluvials Lakes Macrophytes Oxidation-reduction reaction Pyrenees Nutrients (Ecology) River sediments |
| title_short |
Functional diversity of macrophyte communities within and between Pyrenean lakes |
| title_full |
Functional diversity of macrophyte communities within and between Pyrenean lakes |
| title_fullStr |
Functional diversity of macrophyte communities within and between Pyrenean lakes |
| title_full_unstemmed |
Functional diversity of macrophyte communities within and between Pyrenean lakes |
| title_sort |
Functional diversity of macrophyte communities within and between Pyrenean lakes |
| dc.creator.none.fl_str_mv |
Gacia i Passola, Esperança Chappuis, Eglantine Lumbreras, Ana Riera, Joan Lluís Ballesteros i Sagarra, Enric, 1958- |
| author |
Gacia i Passola, Esperança |
| author_facet |
Gacia i Passola, Esperança Chappuis, Eglantine Lumbreras, Ana Riera, Joan Lluís Ballesteros i Sagarra, Enric, 1958- |
| author_role |
author |
| author2 |
Chappuis, Eglantine Lumbreras, Ana Riera, Joan Lluís Ballesteros i Sagarra, Enric, 1958- |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
Llacs Macròfits Reacció d'oxidació-reducció Pirineus Nutrients (Medi ambient) Sediments fluvials Lakes Macrophytes Oxidation-reduction reaction Pyrenees Nutrients (Ecology) River sediments |
| topic |
Llacs Macròfits Reacció d'oxidació-reducció Pirineus Nutrients (Medi ambient) Sediments fluvials Lakes Macrophytes Oxidation-reduction reaction Pyrenees Nutrients (Ecology) River sediments |
| description |
Submersed vegetation is a common feature in about 70% Pyrene an high mountain (>1500 m a.s.l.) lakes. Isoetids and soft-water elodeids are common elements of this underw ater flora and can form distinct vegetation units (i.e. patches of vegetation dominated by different species) within complex mosaics of vegetation in shallow waters (<7 m). Since is oetids exert a strong influence on sediment biogeochemistry due to high radial oxygen loss, we examined the small scale characteristics of the lake environment (water and sediment) associated to vegetation patches in order to ascertain potential functional differences among them. To do so, we characterised the species composition and biomass of the main vegetation units from 11 lakes, defined plant communities based on biomass data, and then related each community with sediment properties (redox and dissolved nutrient concentration in the pore water) and water nutrient concentration within plant canopy. We also characterised lake water and sediment in areas without vegetation as a reference. A total of twenty-one vegetation units were identified, ranging from one to five per lake. A cluster analysis on biomass species composition suggested seven different macrophyte communities that were named after the most dominant species:Nitella sp.,Potamogeton praelongus, Myriophyllum alterniflorum, Sparganium angustifolium , Isoetes echinospora,Isoetes lacustris and Carex rostrata . Coupling between macrophyte communities and their immediate environment (overlying water and sediment) was manifested mainly as variation in sediment redox conditions and the dominant form of inorganic nitrogen in pore-water. These effects depended on the specific compositi on of the community, and on the allocation between above- and belowground biomass, and could be predicted with a model relating the average and standard deviation of sediment redox potential from 0 down to -20 cm, across macrophyte communities. Differences in pore-water total dissolved phosphorus were related to the trophic state of the lakes. There was no correlation between sediment and water column dissolved nutrients. However, nitrate concentrations tended to be lower in the water overlaying isoetid communities, in apparent contradiction to the patterns of dissolved nitrates in the pore-water. These tendencies were robust even when comparing the water over laying communities within the same lake, thus pointing towards a potential effect of isoetids in reducing dissolved nitrogen in the lakes. |
| publishDate |
2009 |
| dc.date.none.fl_str_mv |
2009 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/64584 |
| url |
https://hdl.handle.net/2445/64584 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Reproducció del document publicat a: Journal of Limnology, 2009, vol. 68, num. 1, p. 25-36 |
| dc.rights.none.fl_str_mv |
cc-by-nc (c) PAGEPress, 2009 http://creativecommons.org/licenses/by-nc/3.0/es info:eu-repo/semantics/openAccess |
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cc-by-nc (c) PAGEPress, 2009 http://creativecommons.org/licenses/by-nc/3.0/es |
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openAccess |
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application/pdf |
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PAGEPress |
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PAGEPress |
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Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona |
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Universidad de Barcelona |
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Dipòsit Digital de la UB |
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Dipòsit Digital de la UB |
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