A species of snail lives in the intertidal zone along the coast of New England. The dark-colored variety of the species is more common in northern New England, the light-colored variety is more common two hundred miles away in southern New England, and both varieties are commonly found together in central New England. What is the best explain the observed distribution pattern of the snails?

The best observation to explain the distribution pattern of snails is that the biotic and abiotic resources of northern New England are different from southern New England, but in central New England biotic and abiotic factors are abundant for both species. To understand better....

Movement of animals

The movement of animals affects the spatial pattern of their distribution, generating three main distribution patterns, the random, the regular and the aggregate. The random pattern occurs when individuals are equally likely to occupy any point in the habitat, regardless of the position of conspecifics. When individuals are more evenly spaced in the habitat than expected at random, we have the regular distribution. Finally, in the aggregate distribution pattern, we observe that individuals are closer than expected at random, due to the tendency to attract or be attracted to places with availability of resources and abiotic conditions private.

With this information, we can conclude that the factors available in the environments will determine the species that live there.

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