Ecological Archives E088-135-A4

Simon A. Queenborough, David F. R. P. Burslem, Nancy C. Garwood, and Renato Valencia. 2007. Neighborhood and community interactions determine the spatial pattern of tropical tree seedling survival. Ecology 88:2248–2258.

Appendix D. Summary of observed regression slopes of seedling survival on adult tree abundance or seedling density: community test.

TABLE D1. Summary of observed regression slopes of seedling survival on adult tree abundance (methods A and B) or seedling density (C), as tested against the distribution of slopes of 1000 simulated regressions randomizing either the predictor (B) or response variable (A and C). The test was conducted on all seedling plots (full) or only those without highly fecund females (partial), and then on subsets of these data (see main text for details), (*P < 0.05, **P < 0.005, ***P < 0.001).

Randomization method/data set		Tree abundance
A. Bootstrapped adult abundance		BASAL AREA		DENSITY		RELATIVE DOMINANCE
Data set	Seedlings included	slope	95% CL	slope	95% CL	slope	95% CL
Full data set	i) all	-0.16 *	-0.15	-0.05	-0.16	-0.16 *	-0.15
	ii) > 20 m from ♀	-0.12	-0.15	-0.04	-0.15	-0.12	-0.15
	iii) < 30 cm tall	-0.14	-0.15	-0.03	-0.13	-0.14	-0.15
	iv) ii and iii	-0.13	-0.14	0.01	0.14	-0.13	-0.13

Partial data set	i) all	-0.12	-0.15	-0.05	-0.15	-0.12	-0.15
	ii) > 20 m from ♀	-0.10	-0.17	-0.05	-0.19	-0.11	-0.14
	iii) < 30 cm tall	-0.10	-0.12	0.01	-0.13	-0.10	-0.12
	iv) ii and iii	-0.11	-0.13	0.04	0.16	-0.11	-0.14

B. Bootstrapped seedling survival
Data set	Seedlings included
Full data set	i) all	-0.16 ***	-0.07	-0.05	-0.06	-0.16 ***	-0.06
	ii) > 20 m from ♀	-0.12 ***	-0.07	-0.04	-0.08	-0.12 ***	-0.07
	iii) < 30 cm tall	-0.14 **	-0.10	-0.03	-0.10	-0.14 ***	-0.09
	iv) ii and iii	-0.13 **	-0.08	0.01	0.12	-0.13 **	-0.08

Partial data set	i) all	-0.12 ***	-0.06	-0.05	-0.07	-0.12 ***	-0.07
	ii) > 20 m from ♀	-0.10 **	-0.07	-0.05	-0.08	-0.11 *	-0.09
	iii) < 30 cm tall	-0.10 *	-0.09	0.02	-0.08	-0.10 *	-0.10
	iv) ii and iii	-0.11 **	-0.09	0.04	0.10	-0.11 *	-0.09

C. Bootstrapped seedling survival vs. seedling density
Data set	Seedlings included
Full data set	i) all	-0.16 ***	-0.08
	ii) > 20 m from ♀	-0.13 **	-0.10
	iii) < 30 cm tall	-0.13 **	-0.13
	iv) ii and iii	-0.15 *	-0.14

Partial data set	i) all	-0.09	-0.10
	ii) > 20 m from ♀	-0.06	-0.13
	iii) < 30 cm tall	-0.09	-0.14
	iv) ii and iii	-0.15 *	-0.12

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