NAT SEL PART 1 BIODIVERSITY

Ecosystems: Everything is connected The only thing getting IN from space______. The only thing going OUT to space ________. Energy – Solar Radiation / Energy – Thermal Energy

Diversity Answer these questions as a warm up. WHAT is diversity? Explain BIODIVERSITY.

WHAT IS BIODIVERSITY?

Biodiversity Bio – Life Diversity - Different How many species have been identified? So far ONLY 1.75 million have been identified Scientists estimate that 99.9% of all species that ever lived on earth are now extinct….! What does that mean for the species that are currently thriving? History of the Earth 10 min

Scientists study 3 types of bioDIVERSITY Genetic Diversity Species Diversity Ecosystem Diversity

Genetic Biodiversity Genetic variation within a species, Increases chances of survival !

Genetic Diversity

Genetic diversity Genetic variation within a species

Genetic diversity

Genetic Diversity After looking at those pictures – explain HOW genetic diversity can lead to survival for a species?

species diversity The variety of species found in an ecosystem comprise that system's species diversity.

Two components of species diversity: species richness - the number of different species in the community relative abundance - the proportion of the community represented by each species

The two forest communities below have the same species richness (four species), but the relative abundance of the four species is different between the two communities.

Ecosystem Diversity –Different Biomes

PA BIOME TEMPERATE DECIDUOUS FOREST

Biodiversity is…. The foundation for ecosystems stability… All organisms have a niche (job) that keeps the world in balance.. (predator – prey, consumer, producer, scavanger…etc.) Why so important? Ted Ed