Figure 1.
Spatial distribution of Shorea maxwelliana with diameter at breast height (dbh) >30 cm in the 40-ha study plot (500×800 m) at the Pasoh Forest Reserve during two flowering years, 2002 and 2005.
Flowering trees during the two synchronized flowering events are represented by open circles, while non-flowering trees and trees of unknown flowering status are represented by black and gray circles, respectively. Trees used for seed collection (mother trees) are represented by open squares.
Figure 2.
Average and standard error of flowering candidates as pollen donors within radii of mother trees.
Dark and light gray bars represent number of flowering candidates in the 2002 and 2005 flowering seasons, respectively.
Table 1.
Number of seeds analyzed for the modelling exercise, rates of categorical paternity, immigration and selfing revealed by paternity analysis, and number of paternal donors identified by paternity analysis for the ith mother tree.
Figure 3.
Solid lines represent estimated normalized pollen dispersal kernels from the posterior median of a and b derived from the Bayesian model. Dotted lines indicate the 50% Bayesian credibility interval for the dispersal kernels.
Table 2.
Posterior median, 95% and 50% Bayesian credibility of dispersal kernel parameters (a and b), mean pollen dispersal distance (δ), fecundity variance (σ), ratio of population density (dobs/dep) and effective pollen donors (Nep) estimated from the Baysian model.
Table 3.
Posterior median, 95% and 50% Bayesian credibility of effective pollen donors of the ith mother tree (Nepi) estimated from the Baysian model.
Figure 4.
Relationship between flowering tree density and proportion of self pollen in the pollen cloud experienced by the ith mother trees (ρi).
A) Number of flowering trees within the radius of the mean pollen dispersal distance (δ) is used as an indicator of flowering tree density. B) Distance between the ith mother tree and its nearest flowering neighbor is used as an indicator of contribution of outcrossing pollen. The sporadic (2002) and the mass flowering events (2005) are represented by black and open circles, respectively.
Table 4.
Effective pollen donors and proportion of effective pollen donors to number of candidates for four Shorea species estimated by the mating model.