Table 1.

Intraspecific and interspecific covariances in abundance and interaction strengths

Comparison	Mean covariance	SE of mean covariance	Mean interaction	SE of mean interaction	No. of comparisons
Intraspecific	42.94	17.54	−0.062	0.014	020
Interspecific	0.63	0.32	0.0010	0.00051	190
Understory–Understory	1.97	0.93	0.00022	0.00065	045
Understory–Tree	0.11	0.41	0.0011	0.00079	100
Tree–Tree	0.42	0.29	0.0016	0.0011	045

Data were derived by using the method of stochastic dynamics for the 20 most abundant BCI species and for understory–understory, understory–tree, and tree–tree species pairs, not including intraspecific covariances and interactions. The distinction between tree and understory designations comes from the height of the adult plant being greater than or less than 10 m, respectively. The last column denotes the number of total number of species pairs in each category. SE, standard error.