Leaf Litter Biodiversity Leaf Litter Biodiversity Wrap-upWrap-up

Which hypothesis did

you test?

Did your result support your hypothesis?

What should you do if they

didn’t??

Lab 8: Soil InvertebratesLab 8: Soil Invertebrates

What lives in leaf litter?? What factors might What lives in leaf litter?? What factors might affect the diversity of this community? How affect the diversity of this community? How

should we measure diversity?should we measure diversity?

Thinking About EcologyThinking About Ecology

What is Ecology?

“To keep every cog and wheel is the first precaution to intelligent tinkering.”

- Aldo Leopold

Open and Closed SystemsOpen and Closed Systems

Is the Earth an open Is the Earth an open system with system with

respect to matter? respect to matter? (What about (What about

energy?)energy?)

The Hydrologic CycleThe Hydrologic Cycle

Atmospheric Cycling: Atmospheric Cycling: CARBONCARBON

The Greenhouse EffectThe Greenhouse Effect

Greenhouse GasesGreenhouse Gases

Source: Hanson & Soto, Source: Hanson & Soto, December 18, 2002 issue of the December 18, 2002 issue of the Proceedings of the National Academy of Sciences Proceedings of the National Academy of Sciences