Primary productivity: 1. It is the rate of synthesis of organic matters by producers. 2. It is comparatively quite high. 3. It is due to synthesis of fresh organic matter from inorganic raw materials by producers. Secondary productivity: 1. Rate of synthesis of organic matters by consumer. 2. It is small and decreases with rise [...]
Net Primary Production (NPP): 1. It is the amount of organic matter stored by producers per unit area. 2. NPP is equal to organic matter synthesized by photosynthesis (-) minus the rate of respiration. Gross Primary Production: 1. It is the amount of organic matter synthesized by producers per unit time and area. 2. GPP [...]
Grazing food chain: 1. It always starts from green plants to tertiary consumer level. 2. Green plant is the first organism to absorb solar energy. 3. They do not help in nutrient cycle. 4. Generally large organism maintain this type of food chain. Detritus food chain: 1. It always starts from detrivores. 2.Bacteria, fungi are [...]
It is the amount of living biomass present in an ecosystem. Dry weight is preferred over fresh weight because, the latter is liable to be influenced by seasonal moist differences.
Ecology has been sub-divided into different fields so as to understand the subject in a more profitable way. Ecology can be commonly divided into animal ecology and plant ecology. However, two major subdivisions were preferred by ecologists. The whole subject was divided into autecology and synecology. Autecology deals with the study of individual species whereas [...]
