| Titre : |
Seed size, shape and vertical distribution in the soil : indicators of seed longevity |
| Type de document : |
Tiré à part de revue |
| Auteurs : |
Renée Marlies Bekker (1967-) ; Jan Pouwel Bakker ; U Grandin ; R. Kalamees ; Per Milberg ; Peter Poschlod ; Ken Thompson (1954-) ; J.H. Willems |
| Année de publication : |
1998 |
| Importance : |
834-842 |
| Langues : |
Anglais (eng) |
| Résumé : |
1.We investigated the vertical distribution of seeds in the soil, using data from ninestudies in five European countries. We discovered significant correlations betweenseed shape and distribution in the soil.2.The classification of the longevity of seeds of plant species has been improved bythe introduction of a ‘longevity index’, expressing on a continuous scale the mostrecent information on seed longevity represented as the proportion of non-transientseed bank records in the database of Thompson et al. (1997). Remarkably, no differ-ence in seed longevity was found if the index was based on direct observations onlywhen compared with the index based on the complete data set where indirect, ‘depth-derived’ observations were included.3.Seed longevity was best estimated using a multiple regression model with anintegrated measure of seed size and shape and depth distribution of seeds.4.The shape of seeds, known to be a consistent character of species, was shown to beconstant within species, whereas depth distribution of seeds was highly variableamong sites. This is consistent with the variability of seed longevity found in publishedseed bank data. |
| Lien pérenne : |
DOI : 10.1046/j.1365-2435.1998.00252.x  |
| Permalink : |
https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=134191 |
Bekker, Renée Marlies (1967-), Bakker, Jan Pouwel, Grandin, U, Kalamees, R., Milberg, Per, Poschlod, Peter, Thompson, Ken (1954-), Willems, J.H.
1998
Seed size, shape and vertical distribution in the soil : indicators of seed longevity.
Functional Ecology, 12(4)
: 834-842.
|
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