EVOLUTION
EVOLUTION OF A POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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birds singing different songs for mating
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the Colorado river dividing squirrels
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the orchids in the rain forest pollinating at different times of year
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the ocean separating turtles in the Galapagos islands
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Detailed explanation-1: -One example is birds singing different songs to attract mates. Other examples include different preferences in breeding calls, mating dances, and pheromones. Fireflies find mates using distinct patterns of flashing. Only members of the same species can recognize the specific flashing pattern as a potential mate.
Detailed explanation-2: -Examples of Behavioral Isolation For example, male fireflies of a variety of species signal to their female counterparts by flashing their lights in specific patterns. Females will only respond to the signals flashed by their own species, preventing them from mating with other closely related firefly species.
Detailed explanation-3: -“Species of fish living in different areas of a pond due to differential salt concentrations” is not an example of behavioral isolation because there is not difference in mating behaviors that reproductively isolates the two species of fish.
Detailed explanation-4: -For example, a child who is inappropriately touched by an adult may slap that adult. In this instance, the act of slapping is a Behavioural Barrier that is functional. It is not physical aggression.
Detailed explanation-5: -Behavioral isolation occurs when mismatches in mating traits (signals and/or preferences) prevent mating between two species/populations.