Effects of salinity and ingestion by ducks on germination patterns of Juncus subulatus seeds
8 páginas, 17 referencias.
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| Format: | artículo biblioteca |
| Language: | English |
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Elsevier
2006
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| Subjects: | Mediterranean wetlands, Doñana, Environmental stress, Gut passage, Helophyte, |
| Online Access: | http://hdl.handle.net/10261/37867 |
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dig-irnas-es-10261-378672021-10-01T12:27:38Z Effects of salinity and ingestion by ducks on germination patterns of Juncus subulatus seeds Espinar, José L. García, Luis V. Figuerola, Jordi Green, Andy J. Clemente Salas, Luis Ministerio de Medio Ambiente (España) Mediterranean wetlands Doñana Environmental stress Gut passage Helophyte 8 páginas, 17 referencias. Changes in the nature of the seed coat caused by gut passage are considered to be the proximate causes of changes in germination patterns. Modifications of seed coat permeability may be decisive in saline environments (e.g. Mediterranean wetlands), in which the response of the seed to osmotic stress, or its resistance to toxicity caused by some ions may be affected. We analysed how passage through a duck gut can change the response pattern of seeds of a Mediterranean helophyte Juncus subulatus to an experimental salinity gradient. Gut passage produced a significant loss of seed viability (about 30%) across the whole salinity gradient and no change in the intrinsic variability of the dormancy period or germination rate in J. subulatus seeds. However, J. subulatus seeds clearly have the potential to disperse via birds. We compare our results with those obtained previously for sympatric species of saline environments. Financial support came from Ministry of Environment (Project 05/99). Peer reviewed 2011-07-20T09:47:27Z 2011-07-20T09:47:27Z 2006 artículo http://purl.org/coar/resource_type/c_6501 Journal of Arid Environments 66: 376–383 (2006) 0140-1963 http://hdl.handle.net/10261/37867 en http://dx.dio.org/10.1016/j.jaridenv.2005.11.001 none Elsevier |
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ES |
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biblioteca |
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Europa del Sur |
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Biblioteca del IRNAS España |
| language |
English |
| topic |
Mediterranean wetlands Doñana Environmental stress Gut passage Helophyte Mediterranean wetlands Doñana Environmental stress Gut passage Helophyte |
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Mediterranean wetlands Doñana Environmental stress Gut passage Helophyte Mediterranean wetlands Doñana Environmental stress Gut passage Helophyte Espinar, José L. García, Luis V. Figuerola, Jordi Green, Andy J. Clemente Salas, Luis Effects of salinity and ingestion by ducks on germination patterns of Juncus subulatus seeds |
| description |
8 páginas, 17 referencias. |
| author2 |
Ministerio de Medio Ambiente (España) |
| author_facet |
Ministerio de Medio Ambiente (España) Espinar, José L. García, Luis V. Figuerola, Jordi Green, Andy J. Clemente Salas, Luis |
| format |
artículo |
| topic_facet |
Mediterranean wetlands Doñana Environmental stress Gut passage Helophyte |
| author |
Espinar, José L. García, Luis V. Figuerola, Jordi Green, Andy J. Clemente Salas, Luis |
| author_sort |
Espinar, José L. |
| title |
Effects of salinity and ingestion by ducks on germination patterns of Juncus subulatus seeds |
| title_short |
Effects of salinity and ingestion by ducks on germination patterns of Juncus subulatus seeds |
| title_full |
Effects of salinity and ingestion by ducks on germination patterns of Juncus subulatus seeds |
| title_fullStr |
Effects of salinity and ingestion by ducks on germination patterns of Juncus subulatus seeds |
| title_full_unstemmed |
Effects of salinity and ingestion by ducks on germination patterns of Juncus subulatus seeds |
| title_sort |
effects of salinity and ingestion by ducks on germination patterns of juncus subulatus seeds |
| publisher |
Elsevier |
| publishDate |
2006 |
| url |
http://hdl.handle.net/10261/37867 |
| work_keys_str_mv |
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| _version_ |
1777664192152600576 |