RT info:eu-repo/semantics/article
T1 Offspring spatial patterns in Picconia excelsa (Oleaceae) in the Canarian laurel forest
A1 Arteaga, Manuel A.
A1 González, Guacimara
A1 Delgado, Juan Domingo
A1 Arévalo, José Ramón
A1 Fernández-Palacios, José María
K1 Laurel forest
K1 Seed dispersal
K1 Bosque de laurel
K1 Dispersión de semillas
AB We studied the spatial patterns of seedlings and seeds in isolated Picconia excelsa (Oleaceae) trees in the laurel forestof Anaga, Tenerife (Canary Islands). By finding isolated trees we assessed the correlation of seed and seedling banktraits and parent trees by removing the confounding effects of proximity (o100m radius) of conspecific fruiting trees.We counted all the seedlings per age (height) class within its parental range, and sampled the seed number alongtransects departing from beneath the parent canopy at regular intervals. We mapped all seedlings per age class andplotted seed and seedling profiles in relation to distance to parent trees. Older Picconia seedlings tended to clumpsignificantly further from parent trees than younger seedlings, which clumped just beneath the parents. We foundsignificant differences among distances to parent tree in numbers of seedlings per age class. The seedling bank area wassignificantly correlated with maximum distance of seedlings to parent trees. The majority of seeds were depositedwithin the first 4m below the parent crown. Seedlings amount at further distances from the trees is larger than seeds/fruits as counted on the ground. Our results suggest that disseminated, older seedlings have occupied germination sitesfar from the parent tree because there is probably lower seedling–seedling and parent–seedling competition forresources, and perhaps no intraspecific allelopathy and predation/disease.
PB Elsevier
SN 0367-2530
YR 2006
FD 2006
LK http://riull.ull.es/xmlui/handle/915/16442
UL http://riull.ull.es/xmlui/handle/915/16442
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 22-dic-2024