[article]
| Titre : |
Spatial spreading of Robinia pseudo-acacia and Populus alba clones in sandy habitats |
| Type de document : |
Imprimé |
| Auteurs : |
V. Krizsik ; L. Körmöczi |
| Année de publication : |
2000 |
| Article en page(s) : |
3-8 |
| Langues : |
Anglais (eng) |
| Catégories : |
[CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
|
| Mots-clés : |
Robinia pseudoacacia L., 1753 Populus alba |
| Résumé : |
Invasion of alien species has become a general problem word-wide. Among the shrinking patches of natural vegetation, various human activities create artificial corridors for the migration of species which have been geographically separated, and have had distinct evolutionary histories. The time scale of invasions is much smaller than the evolutionary scale of the traits by which these species have been adapted to their environment. Black locust was introduced to the Hungarian Great Plain in the 19th century.
Its successful invasion nowadays seriously threatens the maintenance of natural communities over large areas, especially in sandy habitats. Our aim was to study the reasons for the rapid invasion of this species. In particular, we focused on its capacity for clonal reproduction.
We investigated the dynamics of ramet production and spatial spreading of Robinia clones in sandy habitats. In comparison, we measured the same traits in another clonal tree species, Populus alba. White poplar is an element of the natural vegetation in the same area.
Robinia proved to be more aggressive and successful in the occupation of vegetation gaps by strong establishment of brush-wood. Why is the Robinia so successful in the occupation of the sandy habitats of Great Hungarian Plain. In this respect, the ability and dynamics of clonal growth seems to be important. We hypothesise that the utilisation of vegetation gap differs in the case of a native and an adventive species. |
| En ligne : |
https://expbio.bio.u-szeged.hu/ecology/tiscia/volumes.html |
| Permalink : |
https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=153547 |
in Tiscia > 32 (2000) . - 3-8
Krizsik, V., Körmöczi, L.
2000
Spatial spreading of Robinia pseudo-acacia and Populus alba clones in sandy habitats.
Tiscia, 32: 3-8.
|
Spatial spreading of Robinia pseudo-acacia and Populus alba clones in sandy habitats in Tiscia, 32 (2000)
