Food Chain And Food Webs Explained Here, the producers are consumed by the predators primary and secondary consumers and then the detritivores and finally by decomposers. when many such individual food chains occur in an ecosystem, it is known as food web. a food chain shows a direct transfer of energy between organisms. as every organism can feed on multiple things, a food web. These are called primary consumers, or herbivores. deer, turtles, and many types of birds are herbivores. secondary consumers eat the herbivores. tertiary consumers eat the secondary consumers. there may be more levels of consumers before a chain finally reaches its top predator. top predators, also called apex predators, eat other consumers.
Food Chain And Animal Classification By Eating Type Outline Diagram 5 min read. the main difference between primary secondary and tertiary consumers is that primary consumers are the herbivores that feed on plants, and secondary consumers can be either carnivores, which prey on other animals, or omnivores, which feed on both animals and plants, whereas tertiary consumers are the apex predators that feed on both. Secondary consumers are usually carnivores that eat the primary consumers. tertiary consumers are carnivores that eat other carnivores. higher level consumers feed on the next lower trophic levels, and so on, up to the organisms at the top of the food chain: the apex consumers. in the lake ontario food chain, shown in figure \(\pageindex{2. 3rd trophic level: secondary consumer. consumes primary consumers. snakes eat mice. 4th trophic level: tertiary consumer. consumes secondary consumers. hawks eat snakes. many consumers feed at more than one trophic level. humans, for example, are primary consumers when they eat plants such as vegetables. The gross productivity of primary consumers is much smaller, about 3,368 kcal m 2 yr. the gross productivity of secondary consumers is 383 kcal m 2 yr, and the gross productivity of tertiary consumers is only 21 kcal m 2 yr. the net productivity of each trophic level is less than the gross productivity because some energy is used to meet.
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