RT info:eu-repo/semantics/article
T1 Spatial patterns of trees and juveniles in a laurel forest of Tenerife, Canary Islands
A1 Arévalo, José Ramón
A1 Fernández-Palacios, José María
K1 Hamill & Wright statistic
K1 Laurel forest regeneration
K1 Ripley’s K, Saplings
K1 Shade tolerance
AB Spatial patterns are important characteristics of the forest and they can reveal such things as successional statusand ecological characteristics of the species. We tested the hypothesis that spatial distribution will be different,depending on whether the species is intolerant or tolerant to shade. We assessed the spatial distribution of trees(> 4 cm dbh) and juveniles in eight laurel forest plots. A univariate spatial analysis (performed with Ripley’s K1)showed that all tree species have significant aggregation at short distances (2 m). Nevertheless, two groups ofspecies could be differentiated: Erica scoparia, Myrica faya and Ilex canariensis showed a tendency for aggregationat large distances (larger than 6 m) while L. azorica and Prunus lusitanica showed aggregation only atshorter distances. Ripley’s Bivariate K1,2 analyses showed no significant differences in the spatial distribution ofanalyzed species pairs from a null model. Only Laurus azorica had a sufficient sample size for analysis of juveniledistribution. A univariate analysis revealed that L. azorica seedlings (stems < 50 cm high) were clumpedin some plots up to 5 m, but this was not consistent. Saplings (stems > 50 cm high and < 4 cm dbh) did not showstrong clumping even at short distances. L. azorica saplings had no significant aggregation with, nor repulsionfrom, adults of the same or different species. Spatial patterns of the species should be considered in the development of restoration plans of the laurel forest 90% of which has disappeared or been intensively disturbed on Tenerife Island.
SN 1385-0237
YR 2003
FD 2003
LK http://riull.ull.es/xmlui/handle/915/17667
UL http://riull.ull.es/xmlui/handle/915/17667
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 19-abr-2024