The vegetal stratification ofan
, like the strataofthe
Amazon , creates vertical
layers with abiotic and biotic
factors, the ecosystem into
several environments.
Therefore in the layer near the
crowns big trees the exposition
light, rain and wind but
moisture is lower to the
inferior layers. one goes down the
penetration of light
diminishes moisture increases.
Regarding the ,
communities of each stratum
differcomposition and
features, food , reproduction
strategies, etc.

Such in the abiotic and
factors make the selective
upon living beings to also diversified,
there are ecological niches to be
and more varied beings
during the evolutionary process.