Ecology: We are all connected and interdependent
Species in a N. Am. forest
Ecological Interconnections
CB 54.2 Interconnections
Predator-Prey interactions CB 52.21 Predator-Prey interactions
CB 52.12 Carrying Capacity stationary phase exponential growth
Human Population Growth CB 52.22 Human Population Growth
What limits Carrying Capacity?… CB 52.12 stationary phase exponential growth
…Availability of resources. Space
Availability of resources and removal of waste limits carrying capacity CB 54.2
Energy is lost in each consumer CB 54.11 Energy is lost in each consumer
Less consumers than producers CB 54.13 Less consumers than producers
Energy is lost as it is consumed: where does it go? CB 54.11 Energy is lost as it is consumed: where does it go?
only a small percent of energy is stored in organism CB 54.10 only a small percent of energy is stored in organism
…Availability of resources. Space
CB 54.17 Carbon cycle
CO2 levels in Hawaii and average global temp. CB 54.24
Nitrogen cycle 80% in air CB 54.17
Nitrogen as part of amino acids CB 5.16 Nitrogen as part of amino acids N N N
Nitrogen cycle 80% in air CB 54.17
Ecosystems on Earth: resources are not evenly distributed CB 50.19 Ecosystems on Earth: resources are not evenly distributed
Number of bird species: CB 53.23 Number of bird species: Areas of higher and lower biodiversity reflect available resources
http://www.rainforesteducation.com/FunNGames/canuseethem.htm
Rainforest clear cutting CB 55.15
Human impacts: Pollution in Gulf of Mexico from Mississippi river
Reducing consumption of resources can increase carrying capacity: CB 54.14 Reducing consumption of resources can increase carrying capacity: Human impact as consumers
Human Population Growth CB 52.22
What happens as populations approach their carrying capacity? CB 52.13
What happens as populations approach their carrying capacity? CB 52.13
What happens as populations approach their carrying capacity? CB 52.13
What happens as populations approach their carrying capacity? CB 52.13 What happens as populations approach their carrying capacity?
36.4 9 2.3 UN Department of Economic and Social Affairs Population Division (2004)
How much of our society is based on continuing population increases? 36.4 9 2.3 UN Department of Economic and Social Affairs Population Division (2004)
Increased numbers of one species can reduce the population of other species CB 54.2
Biodiversity- number of species within an area CB 55.2 Genetic Diversity Biodiversity- number of species within an area Ecosystem Diversity
CB 50.19 Ecosystems on Earth
Larger areas can support more biodiversity CB 53.28 Islands
Larger areas can support more biodiversity CB 53.26 # bird species
Water is critical for biodiversity CB 53.25 Water is critical for biodiversity
Removing resources reduces biodiversity CB 53.15 1/10th 1/100th Australian tree hole communities (leaf litter supports bugs etc)
New predators can have an affect throughout the ecosystem CB 53.17
Ecology: We are all connected and interdependent