AP BIOLOGY

Detailed explanation-1: -Canopy is the above-ground portion of vegetation in forests consisting of the tops of trees forming a kind of ceiling.

Detailed explanation-2: -A canopy is a layer of something that spreads out and covers an area, for example the branches and leaves that spread out at the top of trees in a forest. The trees formed such a dense canopy that all beneath was a deep carpet of pine-needles.

Detailed explanation-3: -The forest canopy is a structurally complex and ecologically important subsystem of the forest. It is defined as “the aggregate of all crowns in a stand of vegetation, which is the combination of all foliage, twigs, fine branches, epiphytes as well as the interstices (air) in a forest” (Parker, 1995).

Detailed explanation-4: -Forest canopy cover, also known as canopy coverage or crown cover, is defined as the proportion of the forest covered by the vertical projection of the tree crowns (Jennings et al. 1999).