Ecological Archives M076-005-A7

**L. R. Vinueza, G. M. Branch, M. L. Branch, and R. H. Bustamante. 2006. Top-down herbivory and bottom-up El Niño effects on Galápagos rocky-shore communities. Ecological Monographs 76:111–131.**

Appendix G (Table G1). Repeated-measures ANOVA of treatment and site effects on species richness, diversity, and evenness, based on percentage cover of algae.

Source	Margalef’s richness index (d)						Shannon-Wiener diversity (H´)					Pielou’s evenness (J´)
	df	MS	F	P			MS	F	P			MS	F	P
Between subjects
Site (S)	1	0.29	33.28	0			0.04	3.71	0.061			0	0.02	0.896
Treatment (T)	4	0.06	6.4	0.05			0.06	2.22	0.42			0.01	5.1	0.002
S × T	4	0.01	1.48	0.228			0.03	2.66	0.047			0.01	4.12	0.007
Residual	40	0.01					0.01					0
Within Subject					G-G	H-F				G-G	H-F				G-G	H-F
Time (t)	8	0.05	18.64	0	0	0	0.14	45.23	0	0	0	0.05	36.19	0	0	0
t × S	8	0.02	9.04	0	0	0	0.06	19.86	0	0	0	0.02	17.16	0	0	0
t × T	32	0.01	1.86	0.004	0.01	0.004	0.01	1.9	0.003	0.013	0.004	0	1.71	0.012	0.026	0.012
t × S × T	32	0	1.36	0.1	0.129	0.1	0.01	1.91	0.003	0.012	0.004	0	1.73	0.01	0.023	0.01
Residual (t)	320	0					0					0
Sphericity test		M		P	Epsilon	M		P	Epsilon	M		P	Epsilon	M		P
Within subjects	35	0.28	47.82	0.075	0.759	1	0.169	64.315	0.002	0.715	1	0.141	72.64	0	0.646	0.92

Notes: The epsilon value is a correction used when the sphericity assumption is not met. The number is multiplied by the numerator and denominator degrees of freedom within the subject test and the outcome used to calculate the significance level according to Greenhouse-Geisser (G-G) andHuynh-Feldt (H-F) adjustments. M= Mauchly’s W. P values of 0.000 were < 0.0001.

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