1. Statistics for Research in Ecology
Natasha Viener
Statistics for Research in Ecology

2. Sharks

3. Turtles

4. Bottle Caps

5. Sea Cigars

6. Corals
Probability - The chance that something will occur in relation to the possible alternatives
Many things can affect the coral and harm them
Water temperature must be warm between
° F or ° C
Sunlight so the algae can function
Clear water to let sunlight through
Clean water because they are sensitive to pollution
Saltwater because they need a certain salt to water ratio

7. Variance
Variance - Two values that are used in statistics to describe how far away your data are from the mean

8. TDC ( theoretical distribution curve) of Sea Cigars
Theoretical Distribution Curve – The ideal picture of a distribution based upon random sampling

9. TTest
TTest – an equation used to calculate the t-statistic designed to test whether there is a significant difference between the means of two independent samples. This equation includes the mean, the number, the variance and the probability.

10. Chi-Square
A Chi-square test is used to see if there are any significant difference between data sites or sources. Since p < .05 we reject the null hypothesis and therefore there is a significant difference in the survival rates between beach sites.

11. Butterflies Control Group Total Treatment Group C1 16 T1 20 C2 T2 C321 C5 T5 C6
Dead T6 C7 T7 C8 T8 C9 T9
C10
T10
C11
T11
N/A
C12
T12
C13
T13
C14
T14
C15
T15