Seed dispersal distances: a typology based on dispersal modes and plant traits

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Ressource 1Télécharger: BIB_ABDB608A7111.P001.pdf (130.64 [Ko])
Etat: Serval
Version: de l'auteur
ID Serval
serval:BIB_ABDB608A7111
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Seed dispersal distances: a typology based on dispersal modes and plant traits
Périodique
Botanica Helvetica
Auteur(s)
Vittoz P., Engler R.
ISSN
0253-1453
Statut éditorial
Publié
Date de publication
2007
Peer-reviewed
Oui
Volume
117
Numéro
2
Pages
109-124
Résumé
The ability of plants to disperse seeds may be critical for their survival under the current constraints of landscape fragmentation and climate change. Seed dispersal distance would therefore be an important variable to include in species distribution models. Unfortunately, data on dispersal distances are scarce, and seed dispersion models only exist for some species with particular dispersal modes. To overcome this lack of knowledge, we propose a simple approach to estimate seed dispersal distances for a whole regional flora. We reviewed literature about seed dispersal in temperate regions and compiled data for dispersal distances together with information about the dispersal mode and plant traits. Based on this information, we identified seven "dispersal types" with similar dispersal distances. For each type, upper limits for the distance within which 50% and 99% of a species' seeds will disperse were estimated with the 80th percentile of the available values. These distances varied 5000-fold among the seven dispersal types, but generally less than 50-fold within the types. Thus, our dispersal types represented a large part of the variation in observed dispersal distances. The attribution of a dispersal type to a particular species only requires information that is already available in databases for most Central European species, i.e. dispersal vector (e.g. wind, animals), the precise mode of dispersal (e.g. dyszoochory, epizoochory), and species traits influencing the efficiency of dispersal (e.g. plant height, typical habitats). This typology could be extended to other regions and will make it possible to include seed dispersal in species distribution models.
Mots-clé
Anemochory, anthropochory, autochory, hydrochory, plant migration, zoochory.
Web of science
Création de la notice
20/01/2008 16:33
Dernière modification de la notice
03/03/2018 20:27
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