Explore: Trophic Levels

Look up trophic in Wiktionary, the free dictionary. The trophic level of an organism is the position it occupies in a food web. Within a food web, a food

connected to other trophic species. Food webs have trophic levels and positions. Basal species, such as plants, form the first level and are the resource-limited

predators are usually defined in terms of trophic dynamics, meaning that they occupy the highest trophic levels. Food chains are often far shorter on land

Trophic cascades are powerful indirect interactions that can control entire ecosystems, occurring when a trophic level in a food web is suppressed. For

must be more energy at lower trophic levels than there is at higher trophic levels. This allows organisms on the lower levels to not only maintain a stable

amongst different trophic levels to predict community dynamics; food chains are often the base level for theory development of trophic levels and community/ecosystem

1977 seminal paper, "A Trophic State Index for Lakes". It is one of the more commonly used trophic indices and is the trophic index used by the United

trophic levels. The trophic level of a fish is the position it occupies on the food chain. The article establishes the importance of the mean trophic

Each of the levels within the food chain is a trophic level. In order to more efficiently show the quantity of organisms at each trophic level, these food

results in a range of dramatic cascading effects (termed trophic cascades) that alters trophic dynamics, other food web connections, and can cause the