Table 3.

Summary of linear regressions between taxonomic richness and response richness, by SABAP grid cell, for different functional groups. (The sample size (i.e. total number of cells considered) is the same for all curves. Column headings: slope, intercept and r²-value of a fitted linear regression line; mean, mean number of species per cell per functional group; s.d., standard deviation in the number of species per cell; n members, number of species belonging to that functional group.)

functional group	slope	intercept	r2	mean	s.d.	n members
seed dispersers	0.10	5.05	0.80	18.98	9.87	103
pollinators	0.15	3.36	0.86	24.55	14.5	110
nutrient movers	0.35	−11.80	0.82	36.72	33.8	341
insectivores	0.67	1.80	0.99	93.01	58.1	560
granivores	0.13	7.68	0.83	25.46	12.4	131
grazers	0.08	0.40	0.72	11.38	8.2	54
raptors	0.20	−4.20	0.90	23.16	18.3	192
scavengers	0.09	0.63	0.85	14.22	9.3	104
ecological engineers	0.07	−1.19	0.83	8.27	6.6	41