3. Desert Thar, Kutch 4. Semi-arid Punjab plains, Gujarat Rajputana 5. Western Ghats Malabar plains, Western Ghats 6. Deccan Peninsula Central highlands, Chotta-Nagpur, Eastern highlands, Central Plateau, Deccan South 7. Gangetic plains Upper and Lower Gangetic plains 8. Coast West and East coast, Lakshadweep 9. North-East Brahmaputra valley, Northeast hills 10. Islands Andaman and Nicobar Source: Wildlife Protected Area Network in India: A Review, Wildlife Institute of India, 2000. The exponential model of population describes an idealized population in an unlimited environment We define a change in population size based on the following verbal equation. Change in population = Births during – Deaths during size during time interval time interval time interval Using mathematical notation we can express this relationship as follows: If N represents population size, and t represents time, then Nis the change in population size and trepresents the change in time, then: N/t = B-D Where B is the number of births and D is the number of deaths We can simplify the equation and use r to represent the difference in per capita birth and death rates. N/t = rN OR dN/dt = rN If B = D then there is zero population growth (ZPG). ideal conditions, a population grows rapidly. Exponential population growth is said to be happening Under these conditions, we may assume the maximum growth rate for the population (rmax) to give us the following exponential growth dN/dt = rmaxN The logistic model of population growth incorporates the concept of carrying capacity Typically, unlimited resources are rare. Population growth is therefore regulated by carrying capacity (K), which is the maximum stable population size a particular environment can support. POPULATION GROWTH RATE LOGISTIC GROWTH RATE
3. Desert Thar, Kutch 4. Semi-arid Punjab plains, Gujarat Rajputana 5. Western Ghats Malabar plains, Western Ghats 6. Deccan Peninsula Central highlands, Chotta-Nagpur, Eastern highlands, Central Plateau, Deccan South 7. Gangetic plains Upper and Lower Gangetic plains 8. Coast West and East coast, Lakshadweep 9. North-East Brahmaputra valley, Northeast hills 10. Islands Andaman and Nicobar Source: Wildlife Protected Area Network in India: A Review, Wildlife Institute of India, 2000. The exponential model of population describes an idealized population in an unlimited environment We define a change in population size based on the following verbal equation. Change in population = Births during – Deaths during size during time interval time interval time interval Using mathematical notation we can express this relationship as follows: If N represents population size, and t represents time, then Nis the change in population size and trepresents the change in time, then: N/t = B-D Where B is the number of births and D is the number of deaths We can simplify the equation and use r to represent the difference in per capita birth and death rates. N/t = rN OR dN/dt = rN If B = D then there is zero population growth (ZPG). ideal conditions, a population grows rapidly. Exponential population growth is said to be happening Under these conditions, we may assume the maximum growth rate for the population (rmax) to give us the following exponential growth dN/dt = rmaxN The logistic model of population growth incorporates the concept of carrying capacity Typically, unlimited resources are rare. Population growth is therefore regulated by carrying capacity (K), which is the maximum stable population size a particular environment can support. POPULATION GROWTH RATE LOGISTIC GROWTH RATE