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...

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...

at each trophic level in an ecosystem. A pyramid of energy shows how much energy is retained in the form of new biomass from each trophic level, while...

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...

producer trophic level, in general only 10% goes to the next level, the primary consumers, then only 10% of that 10% goes on to the next trophic level, and...

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

over time on changes in ocean trophic levels as a primary indicator of marine biodiversity and health. The Marine Trophic Index is a measure of the overall...

plant growth, followed by corollary increases in subsequent trophic levels. Consequently, trophic index may sometimes be used to make a rough estimate of...

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

Energy is passed up through trophic levels. Energy is lost at each level, due to ecological inefficiencies. The trophic level of an organism can change...

at any trophic level is transferred to the next level. This is often referred to as "the 10% rule" which limits the number of trophic levels that an...

The trophic level index (TLI) is used in New Zealand as a measure of nutrient status of lakes. It is similar to the trophic state index but was proposed...

refer to: Trophic cascade Trophic coherence Trophic egg Trophic function Trophic hormone Trophic level index Trophic level Trophic mutualism Trophic pyramid...

algae and other plant-like organisms known as phytoplankton. The second trophic level (primary consumers) is occupied by zooplankton which feed off the phytoplankton...

relatively inefficient at grazing. Trophic levels are part of the holistic or complex systems view of ecosystems. Each trophic level contains unrelated species...

predation on herbivores, which in turn eat plants, as there are three trophic levels involved. However, hyperparasites are smaller than predators, breed...

biomass or biological productivity and trophic levels. A biomass pyramid shows the amount of biomass at each trophic level. A productivity pyramid shows the...

biomagnification occurs across trophic (food chain) levels. Biodilution is also a process that occurs to all trophic levels in an aquatic environment; it...

interactions. Another example of food web interactions are trophic cascades. Understanding trophic cascades has allowed ecologists to better understand the...

aquatic ecosystems. The typical ocean forage fish feed at the lower trophic level of the food chain, often by filter feeding. They include particularly...

concentration of the chemical or metal increases as it moves up from one trophic level to another. Naturally, the process of bioaccumulation is necessary for...

describes the efficiency with which energy is transferred from one trophic level to the next. It is determined by a combination of efficiencies relating...

describes the phenomenon of trophic cascade in specific terrestrial communities. A mesopredator is a medium-sized, middle trophic level predator, which both...

mechanism that has been called parasite increased trophic facilitation or parasite increased trophic transmission. Examples can be found in bacteria, protozoa...

the biomass, abundance, or diversity of higher trophic levels depend on resources from lower trophic levels. Ideas about top-down control are much more difficult...

showed high values in their tissues which point towards either a high trophic level, or living in great depths (or both). Julian Finn (2016). "Batroteuthis...

role in structuring a community. A foundation species can occupy any trophic level in a food web (i.e., they can be primary producers, herbivores or predators)...

incorporated into the biomass of a trophic level per unit of time is about one-tenth of the energy of the trophic level that it consumes. Waste and dead...

Trophic coherence is a property of directed graphs (or directed networks). It is based on the concept of trophic levels used mainly in ecology, but which...

some plankton are able to benefit from more than just one trophic level. In this mixed trophic strategy—known as mixotrophy—organisms act as both producers...