Labs 1 + 2
What are three important parts of a chart?
Axis lables, data points, chart title.
What is an example of a climate change indicator?
Sea level, ocean salinity, temperature, drought, etc. etc.
What does a normally distributed graph look like?
Bell curve
Offspring is red and white where one parent is red and one parent is white
What is a null-hypothesis?
Hypothesis that assumes variation is just due to random noise
What is the difference between accuracy and precision?
Accuracy refers to how close a measurement is to the truth. Precision refers to how close measurements are to each other.
What are the two parts of a scientific name and how is it written?
Genus and species (caps genus, lowercase species)
What is a 95% confidence interval?
The range in which we are 95% confident the true mean of the sample/popualtion lies.
Which is the target of selection - phenotype or genotype?
Phenotype, which in turn impacts genotype
What does a p-value tell us?
It tells us how likely our results are just due to noise -- lower the better our results are allowing us to reject null
What does an R^2 value describe?
The strength of the relationship between X and Y.
What is phenology?
The study of the cyclical events in an organisms life cycle (i.e. flowers blooming).
What are variance and standard deviation?
Average squared distance from the mean - standard deviation is the square root of variance.
How is genetic drift different from natural selection?
Genetic drift = due to random chance, natural selection = individuals have different levels of fitness and more fit traits will be more selected for.
What is the mark-recapture method?
A way to estimate population by sampling and marking individuals, releasing and then resampling.
How would we write 1050505 in scientific notation?
1.05 x 10^6
What would an example of a phenological mismatch be?
Flowers blooming earlier, butterfly pollinators having later flight dates.
Why is standard error often more useful than standard deviation?
Standard deviation gives us deviation for a sample - standard error gives us deviation for the population.
How was the peppered moth an example of natural selection?
Industrialization changed color of bark, allowing all black moths to better blend in leading to them being selected for.
What are some requirements for mark-recapture to work?
Mark stays on, no large amounts of immigration/emigration, sufficient recapture etc.