Presentation on theme: "What is Biodiversity: Variety or richness of life at all structural levels (molecular/genetic, species, ecosystem). It is an essential renewable resource."— Presentation transcript:
1 What is Biodiversity:Variety or richness of life at all structural levels (molecular/genetic, species, ecosystem).It is an essential renewable resource.
2 Habitat & breeding areas for wildlife Medicine, shelter, cloths Why is it important?Ecosystem functionsEcosystem servicesCleaning water,Cleaning air,Habitat & breeding areas for wildlifeMedicine, shelter, clothsAesthetic and Cultural benefits
3 What are the major threats to biodiversity? H Habitat loss – deforestation and transformation of land for human usesI Invasive species (harmful non-native species, including predators, diseases, and competitors that displace native species)P Pollution – air, water, soil, and noiseP Population, Human overpopulation to be exact, a root cause of the other four factorsO Overharvesting and Overuse (hunting,fishing, gathering)
4 Preserving biodiversity is important to the future of the biosphere. The loss of biodiversity has long-term effects.loss of medical and technological advancesextinction of speciesloss of ecosystem stability
5 Loss of habitat eliminates species. Habitat fragmentation prevents an organism from accessing its entire home range.occurs when a barrier forms within the habitatoften caused by human developmentHabitat corridors are a solution to the problem.
6 Introduced species can disrupt stable relationships in an ecosystem. An introduced species is one that is brought to an ecosystem by humans.accidentalpurposefulInvasive species can have an environmental and economic impact.
7 Invasive species often push out native species. Burmese python (Florida Everglades)Introduced to the Florida Everglades from Asia (pet)It is a constrictor and as the population grows, park officials worry that the endangered species here will fall prey to the snake.
8 Invasive species often push out native species. mice (Australia)Introduced to Australia from Europe (stowaways on cargo ships)Cost farmers millions of dollars in lost crops.Lack of predators to keep the population stable.
9 Invasive species often push out native species. kudzu (southeastern United States)Introduced from southeast Asia (ornamental house plant)Spread too quickly. “Chokes” out native species. Now classified as a problematic weed species.
10 Conservation So, what can we do??? Conservation methods can help protect and restore ecosystems.
11 ConservationSustainable development manages resources for present and future generations.Sustainable development meets needs without hurting future generations.resources meet current needsresources will still be available for future useThe timber industry has started to adopt sustainable practices.
12 ConservationThere are several ways that people can help protect the environment.control population growthdevelop sustainable technologychange practicesprotect and maintain ecosystems