Repositorio
Institucional

Becerra, Pablo, I

Vasquez, Inao

Miranda, Alejandro

Delpiano, Cristian A.

Seed dispersal distance, seed morphology, and recruitment in the Chilean sclerophyllous tree Quillaja saponaria: implications for passive restoration in a semiarid ecosystem

SPRINGER

PLANT ECOLOGY

en

Recolonization of wind-dispersed tree species in degraded areas may decline with distance from remnant forest fragments because seed rain frequently decreases with distance from the seed source. However, regeneration of these species may be even more limited to sites close to the seed source if dispersal distance is negatively affected by seed mass, and germination probability is positively affected by seed mass. We evaluated these hypotheses in a Mediterranean-type ecosystem of central Chile, using the wind-dispersed tree species Quillaja saponaria. We assessed the seed rain curve in a degraded open area adjacent to a remnant forest fragment of this species, and related seed mass with dispersal distance from the seed source. Then, we evaluated the relationship between seed mass, germination, and seedling growth, and if seeds that fall nearer the seed source have greater germination probability. We found a decreasing seed rain with the distance from the seed source. Seed mass was not related to dispersal distance, although seeds with higher wing area dispersed further. Germination probability was significantly and positively related to the seed mass. We observed no significant relationship between distance and germination probability. We conclude that germination probability of this species does not vary along the seed rain curve, and that the recruitment density would be greater near the seed source only due to decreasing seed rain with distance. Our results suggest that this species has the potential to be passively restored in degraded areas, especially within the first 70 m from the remnant forest fragments.

artículo original

We acknowledge the following people for their contributions to this study: Andrea Cornejo, Karin Burgos, Gisella Arellano, Paulina Gonzalez, Carlos Magni, Jorge Perez-Quezada, and CONAF of Lago Penuelas National Reserve. This Research was supported by the Project 058/2010 Fondo de Investigacion del Bosque Nativo -Corporacion Nacional Forestal. PB also thanks to ANID PIA/BASAL FB0002.

Nos gustaría agradecer a las siguientes personas por sus contribuciones a este estudio: Andrea Cornejo, Karin Burgos, Gisella Arellano, Paulina González, Carlos Magni, Jorge Pérez-Quezada y CONAF de la Reserva Nacional Lago Peñuelas. Esta Investigación fue apoyada por el Proyecto 058/2010 Fondo de Investigación Bosque Nativo -Corporación Nacional Forestal. PB también gracias a ANID PIA/BASAL FB0

10.1007/s11258-021-01207-4

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Central Chile

Dispersal capability

Mediterranean-type ecosystem

Passive restoration

Plant recolonization

Seed rain

WIND DISPERSAL

MASS VARIATION

ESTABLISHMENT

PERFORMANCE

PATTERNS

REGENERATION

GERMINATION

VEGETATION

PREDATION

CAPACITY

Ciencias Vegetales

Ecología

Silvicultura

Chile central

Capacidad de dispersión

Ecosistema de tipo mediterráneo

Restauración pasiva

Recolonización de plantas

Lluvia de semillas

DISPERSACIÓN DEL VIENTO

VARIACIÓN DE MASA

ESTABLECIMIENTO

RENDIMIENTO

PATRONES

REGENERACIÓN

GERMINACIÓN

VEGETACIÓN

PREDACIÓN

CAPACIDAD

Seed dispersal distance, seed morphology, and recruitment in the Chilean sclerophyllous tree Quillaja saponaria: implications for passive restoration in a semiarid ecosystem

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artículo original

version publicada

0

restringido

restringido

CONAF 058/2010

ANID-PIA/BASAL FB0002

ANID PIA/BASAL FB0002

WOS:000718213400001