ecology exam

Biodiversity Changes in an ecosystem Fluctuations in population size in an ecosystem Water, carbon, and nitrogen - cycle between abiotic resources and organic matter in the ecosystem Oxygen cycles via photosynthesis and respiration Stability of producers and decomposers in an ecosystem ..

Biodiversity Changes in an ecosystem Fluctuations in population size in an ecosystem Water, carbon, and nitrogen - cycle between abiotic resources and organic matter in the ecosystem Oxygen cycles via photosynthesis and respiration Stability of producers and decomposers in an ecosystem ..

Ecological hierarchy begins at the level of the organism and proceeds to levels of greater complexit..

Ecological Pyramids - Ecological pyramids are also called 'Eltonian pyramids' after C. Elton. Charles Elton (1927) developed the concept of ecological pyramids who noted that "the animals at the base of a food chain are relatively abundant while those at the end are re..

The occurrence of relatively definite sequence of communities over a long period of time in the same area resulting in establishment of stable or climax community, is known as ecological or biotic successio..

Ecological Adaptations - The part of the earth in which life exists is called biosphere. The biosphere consists of 3 major types of habitats. Aquatic habitat Terrestrial habitat Aerial or Arboreal habitat The special characteristics of plants and animals that enalbe them to be successful ..

2 = carnivore order-2) The food chains and other such interrelationships in the ecosystems create a balance in the environment that is called the ecological balance. Man is also a part of these food chains and webs. However, man tries to modify the environment to suit his needs unlike t..

The phenotype is the physical expression of the organism. The phenotype shows variations due to differences in the environmental conditions in a habita..

Hydrosere, also called hydrarch involves the ecological succession in the newly formed pond or lak..

Ecological succession is of great importance as i) It provides information, which help to have control on the growth rate of one or more species in a given geographical area. ii) It helps in reforestation and forest management programm..