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| Format: | Artículo científico |
| Language: | es |
| Published: |
Universidad Estatal a Distancia
2015
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| Online Access: | https://www.redalyc.org/articulo.oa?id=515651508001 https://www.redalyc.org/journal/5156/515651508001/ https://www.redalyc.org/journal/5156/515651508001/html/ https://www.redalyc.org/journal/5156/515651508001/515651508001.epub https://www.redalyc.org/journal/5156/515651508001/movil |
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Table of Contents:
- Remoción pre-dispersiva de semillas en frutos carnosos y bellotas de Quercus coccifera (Fagaceae) en un hábitat mediterráneo recientemente quemado Gabriela Jones Josep M. Bas Pere Pons Multidisciplinaria (Ciencias Naturales y Exactas) Pre acorns fleshy fruits Smilax aspera Rubia peregrina The seed fate in early successional habitats can determine plant composition and regeneration capacity after disturbance. Pre- dispersal seed removal has been poorly studied in Mediterranean habitats, especially in burned and logged habitats. We assessed it for two years in pine forests with experiments excluding vertebrates from eshy fruits (infructescences of Smilax aspera and Rubia peregrina ) and acorns (branches of Quercus coccifera ). We compared one unburned and one burned area (control). Acorn removal was nil in the burned area while in the unburned habitat seed removal occurred from the beginning of the experiments. It is suggested that the greater vegeta- tion cover in the unburned area shelter rodents from predators and in- creased their activity. In contrast, reduced cover in the burned area and the occurrence of gnawed acorns on the ground suggest acorn remov- al by rodents mainly in the post-dispersive stage. Smilax aspera seed removal was slower, and total loss of fruits due to senescence higher, in the burned area. Seed removal appears to be conditioned by inter- annual variations related to the activity and density of granivores and frugivores, the availability of eshy fruits, and the maturation of fruits. In post-re managed areas the role of granivores and frugivores in the regeneration process should be taken into account. 2015 artículo científico 1659-4266 https://www.redalyc.org/articulo.oa?id=515651508001 https://www.redalyc.org/journal/5156/515651508001/ https://www.redalyc.org/journal/5156/515651508001/html/ https://www.redalyc.org/journal/5156/515651508001/515651508001.epub https://www.redalyc.org/journal/5156/515651508001/movil es http://www.redalyc.org/revista.oa?id=5156 UNED Research Journal / Cuadernos de Investigación UNED application/pdf Universidad Estatal a Distancia UNED Research Journal / Cuadernos de Investigación UNED (Costa Rica) Num.1 Vol.7