Natural science: Week 14 Chapter 14: Population Ecology . Monday, April 14 th , 2014. POPULATION ECOLOGY. Population. What is a population? What types of populations are there? Human Population? What is the planet’s limit for human population?. 2010: World population = 6.9 billion
Monday, April 14th, 2014
What is a population?
What types of populations are there?
What is the planet’s limit for human population?
2010: World population = 6.9 billion
Predicted to ‘level out’ at 9.1 billion ~2050
Ecology: the field of biology that focuses on the interactions among and between populations and their environment(s).
Population: all of the individuals of a particular species within a given area.
Structure of populations:
Populations have the capacity to grow exponentially; however, there are limitations
carrying capacity: the maximum population that can be supported indefinitely in a given environment
Resource-limited population have an S-shaped growth curve. (logistic growth curve – page 345)
Density-dependent vs. Density Independent Factors
Renewable vs. nonrenewable resources!
Improve conditions for women – increase access to: