TY - JOUR

T1 - Effect of local competition on resprouting of Arbutus unedo after clipping

AU - Vilà, Montserrat

AU - Weiner, Jacob

AU - Terradas, Jaume

PY - 1994/1/1

Y1 - 1994/1/1

N2 - Abstract. To evaluate the effects of local competition on the growth and size variability of sprouts following disturbance in a natural population of Arbutus unedo in Catalonia, plants were cut at the base and a neighbor removal experiment was performed. Removal of neighbors resulted in an increase in the number and biomass of sprouts at 2 and 7.5 months after clipping. Number and biomass of sprouts was also correlated with initial plant size (stump area). Inter‐genet competition appeared to be symmetric, and acted to delay the onset of interference among sprouts within a genet. Size variability of sprouts on an individual was positively correlated with their density on the stump, supporting the hypothesis that competition among ramets (sprouts) within a genet is asymmetric. Reduced inter‐genet competition from neighbor removal resulted in an increase in the number and biomass of sprouts growing from a stump. This resulted in an increase in the asymmetry of competition among sprouts, and therefore an increase in the size variability of these sprouts. 1994 IAVS ‐ the International Association of Vegetation Science

AB - Abstract. To evaluate the effects of local competition on the growth and size variability of sprouts following disturbance in a natural population of Arbutus unedo in Catalonia, plants were cut at the base and a neighbor removal experiment was performed. Removal of neighbors resulted in an increase in the number and biomass of sprouts at 2 and 7.5 months after clipping. Number and biomass of sprouts was also correlated with initial plant size (stump area). Inter‐genet competition appeared to be symmetric, and acted to delay the onset of interference among sprouts within a genet. Size variability of sprouts on an individual was positively correlated with their density on the stump, supporting the hypothesis that competition among ramets (sprouts) within a genet is asymmetric. Reduced inter‐genet competition from neighbor removal resulted in an increase in the number and biomass of sprouts growing from a stump. This resulted in an increase in the asymmetry of competition among sprouts, and therefore an increase in the size variability of these sprouts. 1994 IAVS ‐ the International Association of Vegetation Science

KW - Disturbance

KW - Inter‐genet competition

KW - Plant competition

KW - Removal experiment

KW - Size variability

UR - http://www.scopus.com/inward/record.url?scp=0028139615&partnerID=8YFLogxK

U2 - 10.2307/3236146

DO - 10.2307/3236146

M3 - Journal article

AN - SCOPUS:0028139615

VL - 5

SP - 145

EP - 152

JO - Journal of Vegetation Science

JF - Journal of Vegetation Science

SN - 1100-9233

IS - 2

ER -