Trophic level

Ecosystem energies flow through many trophic levels. A trophic level is the level organism's occupy within the food chain. There are generally five trophic levels: primary producers, primary consumers, secondary consumers, tertiary consumers, and apex consumers. These five levels all interact with each other to ensure bio-viability. The first trophic level contains the primary producers. They are called the primary producers because they produce their own food and energy. Primary producers include plants and algae, organisms that produce their own food and energy through photosynthesis. They are at the base of the food chain. The second trophic level contains the primary consumers. They are called primary consumers because they are the first level of consumers, and they consist of herbivores, such as rabbits and deer, who eat the…

The word food web and food chain refers to organisms that depend on each for food. A food chain is a sequence of organisms that feed on each other. Although the design of a food chain can vary by ecosystem, all food chains are made up of the same basic trophic levels. Trophic levels are the levels within the food chain where an organism obtains its energy. The tropical levels contain the producer, consumer and the decomposer. Food chain can also be represented by pyramid The above…

First of all, despite the question, I believe that people should follow what we always been doing and not to change just because. However, if I had to choose, I think eat at a lower trophic level would be more beneficial to humans. Now days, people are usually eaten higher on the food chain, but this could be not as efficient environmentally. As the trophic level goes up, 90% of the energy will be lost which means that we are only getting 10% of our food’s energy, the rest are being used to make…

Trophic levels are the feeding position in a food chain such as primary producers, herbivore, and primary carnivore. Green plants form the first trophic level, which are the producers. Herbivores form the second trophic level, while the carnivores form the third and fourth trophic levels. A food chain is the feeding of one organism upon another in a sequence of food transfer. Another definition is the chain of transfer of energy, which typically comes from the sun, from one organist to another.…

The Effect of pH levels on the Motility of Daphnia in Lake Ecosystems Introduction: The production, transportation, and use of chemicals by chemical industries can result in chemical pollution. This leads to a harmful effect on ecosystems and their balance of life (Linlin, Chen, 2012). The pH levels of aquatic environments are important because it affects the physiology of animals by changing their behaviors. The ion concentrations associated with the water and the organism’s survival can also…

There are two major trophic cascades that scientist use. One is called bottom-up and the other is top-down. The controller of top-down would be the top predator or the apex predator (Wallach and O’Neill, 2009). The apex predator can also be known as the keystone species in that ecosystem. Top-down control is when the apex predator regulates the structure and population of the ecosystem (Wallach and O’Neill, 2009). The apex predators will prey on the consumers, which keeps the consumers…

to stay biodiverse. For example, wolves which are apex predators, they eat on the elks that would normally feed on the willows. Consequentially, the elimination of wolves was seen as an object of concern because now that there would be no more wolves to feed on the elks, the willows stared to slowly decline. The willows are important to the ecosystem because they serve as the basis of a food web/chain with small insects, birds, mammals, fungi and bacteria. Beavers for example depend highly on…

6.3 Research question #3 How do mercury stable isotopes ratio change in mercury bio-uptake and bio-magnification in an Arctic marine ecosystem? There is still debate in the scientific community about Hg trophic transfer and/or in vivo transformations lead to MDF and MIF of Hg isotopes (Bergquist and Blum, 2007; Perrot et al., 2012; Senn et al., 2010; Kwon et al., 2012; Das et al., 2009). The MDF and MIF signatures of food webs may help to identify major sources and processes leading to…

How does food web complexity affect the biodiversity of an ecosystem? Before we were given the question, we were taught that biodiversity is about relative abundance and species richness. Just recently we learned about the transfer of energy in food webs, while also learning more about trophic levels. Looking at how much energy you gain and how much an organism needs, I learned that eating straight off a source of plants would help organisms grow and prosper. For our group we examined the…

The levels are made up of the tertiary consumers (carnivores), secondary consumers (small carnivores and herbivores), primary consumers (herbivores), and producers and decomposers (plants and insects). The stronger and more dominant animals in the jungle are superior to the other animals and don’t have predators of their own. In the case of the book, the owners are above the workers and their families. The owners have the power of blacklisting workers and all their personal connections. They…