Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Biodiversity
Document related concepts
Transcript
Biodiversity What is it? • The number and variety of life • In other words – All of the different species on this planet – All of the genetic diversity within and between species – All of the different habitats on this planet Why is it important? • Biodiversity maintains the health of the earth and its people. • It provides us with food and medicine and contributes to our economy. • It tells us a lot about the health of the biosphere. • The greater the variety of species, the healthier the biosphere. Biodiversity and Sustainability • The biodiversity of an ecosystem contributes to the sustainability of that ecosystem. • Higher/more biodiversity = more sustainable. • Lower/less biodiversity = less sustainable. • High biodiversity in an ecosystem means that there is a great variety of genes and species in that ecosystem. Extinction • Extinction is the complete removal a species from the biosphere • Extinction reduces biodiversity • Extinction reduces stability and sustainability of an ecosystem or the biosphere Threats to Biodiversity • • • • • • • Habitat destruction Habitat fragmentation Invasive species Population growth Pollution Overconsumption Climate change Human Activities Can Harm Biodiversity • Sometimes human activities disrupt a natural balance in the biosphere • Some of the activities include – – – – – – – – – – – Agriculture Aquaculture Forestry Grazing Industrial Depelopment Mining Oil and Gas Recreation Roadways Urban Development Water Development
