Here is the article to answer the aforementioned question, starting with the gra
ID: 3252894 • Letter: H
Question
Here is the article to answer the aforementioned question, starting with the graph then the text. I need to see if we arrived at the same conclusions.
The figure caption tells us that the graphs represented in parts a) and b) show the total proportion of attacks on two different kinds of ringed replicas, in two different states. The ticks on the y-axis show the proportion, ranging from 0.0 to 1.0, and each measurement, or data point (site), is represented by a square. The figure caption also tells us that two other kinds of information are superimposed upon these graphs. The first piece of information that is superimposed is the proportion of ringed replicas that we would expect to be attacked in any given population as a result of chance (the proportion is represented by a horizontal dashed line). In other words, the proportion of replicas that is predicted to be attacked strictly by chance is approximately 0.35. The second piece of information that has been superimposed is the latitude (a) and elevation (b) above which coral snakes are absent (the latitude/elevation is represented by a vertical dashed line). In other words, coral snakes are not found above a latitude of approximately 35.1° N in North Carolina, nor above an elevation of approximately 1700 m in Arizona I. Are attacks of ringed replicas higher or lower in the presence of coral snakes? Is this true for both states? What evidence supports your answer? (5 pts) ll. Based on this evidence, what do you conclude is the effect ofhaving markings similar to a coral snake, in areas where coral snakes are present? (5 pts0
Explanation / Answer
I . From scatterplot, it is seen that the proportion of attacks on ringed replicas is lower in the presence on coral snakes. The the proportion of attacks on ringed replicas is higher when the coral snakes are absent.
This is true for both the states. The regression equation between proportion of carnivore attacks and latitude is y = -13.314 + 0.391x. This shows that with increase in the latitudes, the proportion of carnivore attacks rises. But coral snakes are found in low latitude areas. So the proportion of carnivore attacks are low where the coral snakes are present.
The regression equation between proportion of carnivore attacks and elevation is y = -0.329 + 0.00032x. This shows that with increase in the elevation, the proportion of carnivore attacks rises. But coral snakes are found in low elevation areas. So the proportion of carnivore attacks are low where the coral snakes are present.
II. Predators avoid ringed replicas in the regions where coral snakes are present. So, the effect of having markings similar to coral snake have lesser chance of attacks and high life expectancy of the replicas.