NATURE UNBOUNDLESSON 8 – DIVERSITY & DISTURBANCE OF BIOLOGICAL COMMUNITIES

Conservation

Mr. Dieckhoff

WHAT WILL THE AREA BELOW LOOK LIKE IN 2091?

Peck Ranch Conservation Area 100 Year Study

BIOLOGICAL COMMUNITY

Biological Community – Structure – the living

organism in a biological community

Function – how organisms interact to sustain the community

HOW HEALTHY IS A POPULATION Species Richness –

Relative Abundance –

Is this a healthy forest?

WHICH IS A HEATHIER INSECT COMMUNITY?

BIODIVERSITY

Biodiversity – all the species on the planet (over 10 million)

Components species richness and relative abundance Genetic diversity Different ecosystems that exist within a larger

region

BIODIVERSITY

Affected by:

MISSOURI BIODIVERSITY AREAS

Feature-Species Management –

Community Management –

SPECIES RICHNESS DEPENDS ON WHO LEAVES AND WHO ENTERS

Immigration – entering of new species into community

Extirpation – existing species leaving community

Equilibrium point –

SUCCESSION

Succession – Primary – Secondary –

Disturbances – departure of typical environmental conditions (fire, tornados, ice storms, floods)

Primary successional community – Climax Community –

SUCCESSION

CONCLUSION

1. Biological Community2. Species Richness &

Relative Abundance3. Biodiversity4. Equilibrium5. Succession