Grasshopper Phenology and Climate Change Pre-lab Questions:
1. What factors determine differences between life zones? Explain why plant and animal species in similar life zones throughout the world might have similar characteristics.
Climate Change and its effects on organisms
2. Briefly discuss two ways that a warming climate might affect organism.
Growing degree days
3. What are growing degree days (GDD)? How can one use the GDD concept to study as well as predict the effect of climate change on phenology?
4. A butterfly has a minimum threshold of 11°C that is required to begin development and an upper threshold of 40°C, a point at which development ceases. How many growing degree days does the butterfly experience on a day with a low of 8°C and a high of 39°C?
Show your work.