It included a genetic test of the birds’ DNA
It put city and mountain juncos in the same “neutral” place to see if their behaviors changed or stayed the same
It bred city and mountain juncos together to see whether they could produce offspring
It compared the patterns of inheritance for alleles
It’s learned, because the males had more exploratory behavior than females.
It’s inherited, because the males had more exploratory behavior than females.
It’s learned, because some of the mountain females’ levels of exploratory behavior were higher than the city females’ levels of behavior.
It’s inherited, because there were significant differences between city and mountain juncos in average exploratory behavior, both for males and for females.
The number of juncos in each population
The range of wing sizes in each population
The median wing size in each population
The mean wing size in each population
The City, because the percent white in tail feather is closer to the average of city males.
The City, because it is within the range of likely values for percent white in tail feathers for city juncos and close to the average for city males.
The Mountains, because it is closer to the average and within the range of likely values for percent of white in tail feathers for mountain juncos.
The Mountains, because 37% is greater than 36%, which is the average in the City.
Conduct a Common Garden Experiment
Measure aggressiveness in ONLY one population.
Compare their physical characteristics
See if the two populations interbreed.
We can count the mutations that occur in the mtDNA and then compare them between individuals.
If there are a lot of differences, then individuals are more closely related.
If there are a lot of similarities, then individuals are more closely related.
We can count the mutations that occur in the Y chromosome and then compare them between individuals.
Produced more CORT
Passed on their traits
Passed on their genes
Passed on their alleles
The distance when the bird sees the person.
The distance when the bird makes an alarm call.
The distance when the bird's heart rate increases.
The distance when the bird flies away.
Boldness behavior is inherited.
Boldness behavior is learned.
The UCSD juncos produce more CORT
The Mt. Laguna juncos produce less CORT.
An organism's complete set of genes.
The different forms of a gene.
Used to measure boldness.
Another name for a karyotype.
A population can evolve.
A species can evolve
An individual can evolve
The extinction of a species
The characteristics of a species
The interbreeding of two species
The formation of new and distinct species
Produce less offspring
Produce more CORT
Sing at higher frequencies
Here's an interesting quiz for you.