trophic

Nor is a guild the same as a trophic species.

They are, in turn, central prey items for higher trophic levels.

The entire trophic web has been observed to be upset.

Such a strategy amounts to the production of trophic eggs.

Trophic levels can be represented by numbers, starting at level 1 with plants.

Example: Assume 500 units of energy are produced by trophic level 1.

However, the intermediate trophic level is only represented by one or two species.

Each trophic class supports different types of fish and other organisms, as well.

Trophic level - The position that a species occupies in a food chain.

Fish that occupy the higher trophic levels are less efficient sources of food energy.

A greater variety of species at a higher trophic level are exploited in the sea than on land.

Typically, these processes operate only between two trophic levels, with no effect on the others.

The trophic level of a fish is the position it occupies on the food chain.

However, determining the trophic level of some plankton is not straightforward.

There is consecutively less energy available to succeeding trophic levels.

Usually relative species abundances are described for a single trophic level.

Food web stability: the influence of trophic flows across habitats.

Ecological communities with higher biodiversity form more complex trophic paths.

They can be used to model direct competition and trophic relationships between an arbitrary number of species.

There are no concrete explanations for the evolution of trophic eggs.

The detailed reasons for these increases in productivity at higher trophic levels are unknown.

The energy they produce is important for the community because it may be transferred to higher trophic levels via consumption.

However, predators can also influence the structure of lower trophic levels from the top-down.

Diverse communities with complex trophic structures took 30 million years to reestablish.

The table below demonstrates how the index values translate into trophic classes.