How are biodiversity and trophic relationships related? 

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Biodiversity is a term used to define the variation of species in a particular area. The more variation of species present in the ecosystem means that it is more biodiversed. Trophic relationships on the other hand are composed of organisms that are part of the food chain or food web. Every organisms located in the food chains has a particular level called the trophic level. 

Each organism in the food chain may vary in their trophic level. Meaning, they can be primary consumer in a particular food chain but a secondary consumer in the other food chain. This complexity of trophic level a particular organism can have, food web is eventually created - a diverse ecosystem.

We can see that a ‘biodiversed’ ecosystem contains variety of organism and it can be attained only if there are several organisms of different trophic levels, interacting together to form a ‘diversed’ ecosystem. 

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How does biodiversity relate to the trophic levels?

Biodiversity is the variety of organisms within an ecosystem. The more biodiverse an area is, the healthier it generally is. For example, consider the trophic levels in a food web. If there is a high degree of biodiversity in the autotroph or plant level, the next level which is the herbivores would have a great variety of vegetation to consume. However, if man removes all the native plants in an ecosystem in order to farm, biodiversity will decrease and this in turn, may cause the death of some of the herbivores that depended on the native plants for food. The next trophic level, the carnivores can also be affected as their prey animals may become diminished or even extinct. Anytime biodiversity is adversely affected, it can affect any trophic level in a food web.

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Relate biodiversity to the trophic levels.

Trophic levels are the levels organisms occupy in the ecosystem as members of a progressive food chain.  The first level organisms are known as primary producers.  They get their energy from nutrients in the soil, nutrients in the ocean, or from the sun through the process of photosynthesis.  It is here there is the greatest biodiversity, as these organisms can range from microscopic level to the largest of plants.  The next level are organisms classified as primary consumers, which are heterotrophs, who consume the primary producers.  There is less biodiversity as you move up the food chain.  The next level are organisms that feed off the heterotrophs, called secondary consumers.  Many of these organisms are carnivores, meat-eaters.  The next level of organisms are the tertiary consumers, who feed off both herbivores and carnivores.  At this point, we are getting to the top of the food chain, and the biodiversity is much less diversified.

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