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Biodiversity: What is It?. What do you notice?. B. A. What do you notice?. B. A. What do you notice?. A. B. What do you notice?. A. B. What do you think biodiversity means?. Bio diversity. What does “ Bio ” mean?. Life. Bio =. Bio diversity. What does “ Diversity ” mean?.
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Biodiversity What does “Bio” mean? Life Bio =
Biodiversity What does “Diversity” mean? Diversity = Variety
Biodiversity is the presences of DIFFERENT types of species in an ecosystem. Highbiodiversity means a healthy, moresustainable ecosystem. Biodiversityis the variety of life on Earth
Biodiversity: the number of different types of species, and the number of each individual that make up the population of each species. • It is estimated that there are 14 million species of animals on Earth that depend on 300,000 species of plants that provide them with food and shelter. 47animal species:1 plant species • Therefore, the loss of 1 plant species will dramatically reduce the biodiversity of an ecosystem - not only do you lose the plant, you also lose all of the animals that depend on it.
Plants and Biodiversity • Rainforests contain the largest amount of Biodiversity, while the arctic and Antarctic regions have the least amount
There are 3 components of biodiversity • Diversity of genesChihuahuas, beagles, and rottweilers are all dogs—but they're not the same because their genes are different. Beagle Chihuahua Rottweilers
There are 3 components of biodiversity Diversity of speciesFor example, monkeys, dragonflies, and meadow beauties are all different species. Golden Skimmer Meadow Beauty Saki Monkey
There are 3 components of biodiversity Variety of ecosystemsPrairies, Ponds, and tropical rain forests are all ecosystems. Each one is different, with its own set of species living in it. Paines Prairie Florida Sand hill Pond Hoh Rain Forest
What do we get from biodiversity? Oxygen Food Clean Water Medicine Aesthetics Ideas
Biodiversityhappens because living things depend on one another to survive. From the tiniest algae to the largest animal on Earth, the Blue Whale
…which means they are in BALANCE In healthy ecosystems, these “give and take” relationships are in EQUILIBRIUM.
Should we be concerned about biodiversity and it’s equilibrium? What we know:The Earth is losing species at an alarming rate ! • 3species per hour are going extinct • That’s 20,000extinctions occur each year! • So when species of plants and animals go extinct, many other species are affected.
Threats to biodiversity BIODIVERSITY is in danger when we throw off an ecosystem’s…. EQUILIBRIUM!
Effects of Humans on Biodiversity • Biodiversity benefits humans because we rely on organisms to provide us with medicines, foods, fibers and other valuable products. • The primary cause of species loss is human activity that causes large scale destruction of ecosystems.
Threats to biodiversity Habitat destruction
Threats to biodiversity Pollution
Threats to biodiversity Invasive Species
Threats to biodiversity Climate Change
Threats to biodiversity Exploitation
Effects of Humans on Biodiversity • Humans have destroyed many naturally biodiverse areas and planted MONOCULTURES (an area dominated by a single plant species) • Ex. Natural rain forests are cut down and replaces with only palm trees. The oil for the palm trees is sold for profit in industries. • Since plants are responsible for supporting many animals, monocultures support very few organisms.
Humans & Carrying Capacity • UrbanSprawl = the growth of a city as population increases • Urban sprawl has decreased carrying capacity of other species. • How?
Humans & Carrying Capacity • Intensification = How can we accommodate more people in a city without damaging the ecosystem?
WATCH THIS! http://www.youtube.com/watch?v=vGxJArebKoc&feature=related