Seed ecology at the northern limit of the tropical rain forest in America.

Many years of seed research performed at the 'Los Tuxtlas' tropical rain forest reserve in Mexico have produced a wealth of information unavailable for other tropical rain forests of the world. Information is presented on seed size, weight and moisture content, soil seed banks, dormancy mechanisms, seed germination behaviour, seed longevity and storage behaviour. Some research approaches that would provide valuable information for the understanding of seed ecology of the forest are suggested.