Effect of dispersal capacity on forest plant migration at a landscape scale
Article first published online: 16 SEP 2004
Journal of Ecology
Volume 92, Issue 5, pages 778–785, October 2004
How to Cite
TAKAHASHI, K. and KAMITANI, T. (2004), Effect of dispersal capacity on forest plant migration at a landscape scale. Journal of Ecology, 92: 778–785. doi: 10.1111/j.0022-0477.2004.00927.x
- Issue published online: 16 SEP 2004
- Article first published online: 16 SEP 2004
- Received 18 October 2003; revision accepted 7 June 2004; Handling Editor: Peter Klinkhamer
- dispersal limitation;
- dispersal mode;
- landscape ecology;
- seed mass;
- species richness;
- 1We studied the effects of seed dispersal mode and seed mass on the migration patterns of woody and herbaceous forest species in an artificial pine forest band growing on a former sand dune. Seven sites in the artificial forest, at least 44 years old, were selected at different distances from an adjacent natural forest (0.1–17.4 km).
- 2Both the species richness and the abundance of forest species decreased with increasing distance from the natural forest, indicating that the migration of forest species is limited by seed dispersal. Plants using different seed dispersal modes showed differences in migration rate.
- 3Ingested and adhesive species migrated into the artificial forest with the most success. In contrast, almost all the species utilizing other dispersal mechanisms (wind, hoarding or no dispersal mechanism) migrated only into sites near to the natural forest. This is likely to be due to low dispersal capacities. Ant-dispersed species were not found at all in the artificial forest.
- 4Migration distances were calculated for 43 species with a frequency of ≥ 5% in at least one site in the artificial forest. Distances were based on the occurrence of the individual of each species furthest from the natural forest, and on the maximum abundance of that species in the artificial forest. The migration distances of the species did not correlate with their seed mass.
- 5The dispersal efficiency is an important factor in migration of forest species on a landscape scale, and the migration ability is affected by dispersal mode rather than seed mass.