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The canopy layer contains the majority of the largest trees, typically 30 metres (98 ft) to 45 metres (148 ft) tall. The densest areas of biodiversity are found in the forest canopy, a more or less continuous cover of foliage formed by adjacent treetops. The canopy, by some estimates, is home to 50 percent of all plant species.
Canopy structure is the organization or spatial arrangement (three-dimensional geometry) of a plant canopy. Leaf area index, leaf area per unit ground area, is a key measure used to understand and compare plant canopies. The canopy is taller than the understory layer. The canopy holds 90% of the animals in the rainforest.
The canopy level is the third level of the temperate rainforest. The trees forming the canopy, conifers, can stand as tall as 100 metres or more. A variety of species survive in the canopy. The tops of these trees collect most of the rain, moisture, and photosynthesis that the rainforest takes in. They form a canopy over the forest, covering ...
Openings in the forest canopy are widely recognized as important for the establishment and growth of rainforest trees. It is estimated that perhaps 75% of the tree species at La Selva Biological Station, Costa Rica are dependent on canopy opening for seed germination or for growth beyond sapling size, for example. [20]
Mixed dipterocarp forests, including lowland and hill forests, are the predominant plant community. The forests have a closed canopy 24 to 36 meters high, with emergent trees up to 65 meters tall extending above the canopy. Dipterocarps are the most common emergents, comprising up to 80% of the emergent stratum.
The second largest temperate rainforest in the world and the only one in South America, the Valdivian Temperate Rainforest (often referred to as Selva Valdiviana) sits between the Andes and the ...
are closed-canopy forests, generally with 70% or greater foliage cover. are characterised by trees with dense, horizontally or obliquely-held foliage in the upper layers. are described in terms of leaf size: mesophyll – more than 12.5 cm long (45 – 100 cm 2), e.g. tropical rainforest
Canopy gap size was calculated as the area of an ellipse, the major axis of which was the longest line that could be run from canopy edge to canopy edge inside the gap, and the minor axis was the longest line that could be run from canopy edge perpendicular to the long line.