Grazing food chain - food chain, Biology

Grazing Food Chain - Food Chain

Grazing food chains are quite familiar to most of us. Cow or deer grazing in a field represent a grazing food chain. Similarly, eating of phytoplanktonic algae by zooplankton and fish is another example of grazing food chain. In most ecosystems, only a small proportion of the total community energy flows through grazing food chains. Also at each step, significant amount of organic matter is shunted to detritus food chain-through death, decay and excretion by living organisms.

The grazing food chains in forest and ocean represent two extreme types. Ocean food chains are among the longest, up to five links, in contrast to forest types which mostly consist of three or rarely four links. One of the reasons for the longer length of grazing food chains in aquatic ecosystems is the small size of the phytoplankton and zooplankton that chiefly comprise the first two trophic levels. If there are many small herbivores at level two, this means that the carnivores at level three also can be relatively small and numerous, and an additional carnivore level can be accommodated before the last level, represented by a relatively small number of large carnivores.

Posted Date: 1/19/2013 1:34:28 AM | Location : United States







Related Discussions:- Grazing food chain - food chain, Assignment Help, Ask Question on Grazing food chain - food chain, Get Answer, Expert's Help, Grazing food chain - food chain Discussions

Write discussion on Grazing food chain - food chain
Your posts are moderated
Related Questions
Explains how selective breeding methods could be used to produce a population of cats with the short legs. Selective breeding E1: bases explanation on the assumption t

R i n g w o r m It is also known as dermatophytosis resulting in alopecia, scab formation and ring like lesions in the affected body parts. Eti o logy: Zeop

How are the concepts of DNA, gene, proteins and characteristics of living beings related? Characteristics of organisms depend on chemical reactions that happen in them. These r

You have discovered that a single protein in two different cell lines is significantly over expressed in one of them. The proteins are identical, yet Northern blot analysis has dem

Animals of Estuaries The animals of estuaries and related wetlands such as marshes and swamps are tremendously important not only as denizens of their environment but also for

Insulin binding to insulin receptors in the plasma membrane of a A. liver cell will lead to an increase in the intracellular amounts of cAMP in the liver cell. B. beta-islet

Q. What is Peri-Implant Disease? The term peri-implantitis is used to describe the boneloss around an implant. This may be induced by stress or bacteria or a combination of bot

what about cytoplasmic sex determination

Define the Nutritional assessment methods? Nutritional assessment methods commonly used are enumerated herewith. 1. Bodyweight measurement s remain to be the most practical

In the year of 1953, Watson and Crick worked out the 3-D structure of DNA, beginning from X-ray diffraction photographs   taken through Wilkins and Franklin. They decreased which D