RT info:eu-repo/semantics/article
T1 Regeneration dynamics in the laurel forest: changes in species richness and composition
A1 Arévalo, José Ramón
A1 Nascimento Reyes, Lea de
A1 Fernández-Lugo, Silvia
A1 Méndez, Javier
A1 González-Delgado, Guacimara
A1 Balguerías, Eduardo
A1 Gomes, Eduardo Pereira Cabral
A1 Fernández-Palacios, José María
K1 Conservation
K1 Evenness
K1 Regeneration
K1 Seedling Bank
K1 Species Composition
AB The recovery and survival of the Macaronesian laurel forest depends on itsregeneration strategies. After years of long-term monitoring, both sexual andasexual regeneration appear to be equally important. However, the mechanisms for each are just beginning to be understood. In order to contribute tothe understanding of the laurel forest sexual regeneration, we analyzed thespecies composition of the seedling bank every two weeks over three years inthe laurel forest of Anaga (Tenerife, Canary Islands). We compared the speciescompositions of the seedling bank with the canopy, and analyzed changes intheir diversity over this period in different forest stands. We found thatspecies diversity (evenness) is different among plots regardless of the stand. Insome cases, plot diversity remained constant over time, while others showedsome variations, which were little related to climatic conditions (temperatureand precipitation). We also found no relationship between the seedling bankand canopy composition, with shade-intolerant species being more abundantin the former. Although climatic conditions remained constant during theperiod and other environmental conditions did not vary either, some changeswere found in the seedling bank species composition. These were related tothe increased degree of conservation of the laurel forest of Anaga (by closingunpaved roads, limiting access, and the abandonment of agriculture) that hadnegatively affected the density of shade-intolerant species. We suggest thatsuch conservation measures should be maintained and extended to otherareas where agriculture has been recently abandoned to allow the potentialestablishment of laurel forest and late successional species
YR 2018
FD 2018
LK http://riull.ull.es/xmlui/handle/915/16819
UL http://riull.ull.es/xmlui/handle/915/16819
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 13-nov-2024