Q. How does the vegetal stratification of an ecosystem influence the biological diversity?

The vegetal stratification of the ecosystem like the strata of the Amazon Rainforest, creates vertical layers with peculiar abiotic and biotic factors dividing the ecosystem into several different environments. Thus in the superior layer near the crowns of big trees the exposition to light, wind and rain is greater but moisture is lower compared to the inferior layers. Because one goes down the strata the penetration of light diminishes and moisture increases. Regarding the biotic factors communities of each stratum present in reproduction strategies, differcomposition and features, food habits, and so on. Such variations in the biotic and abiotic factors make the selective pressure upon living beings to be also diversified, there are more ecological niches to be explored and more varied beings emerge during the evolutionary process.