Which of the following could be a vicariance event for species in that habitat?
A)The level of water in a lake recedes,creating two lakes where there used to be one.
B)Some insects get blown in a storm to a new mountain range,where they lay eggs.
C)Radiation near Chernobyl increases mutation rate,causing an increase in autopolyploidy.
D)All of the above could be vicariance events for species in that habitat.

Question

Quizplus · Accepted Answer

Vicariance events involve a physical splitting of a habitat, such as the separation of populations due to the formation of a new boundary, like a river or a mountain range. The receding of water in a lake can result in the formation of two separate lakes, which could lead to speciation of populations that were once connected.

B and C are not examples of vicariance events. B is an example of dispersal, where individuals move from their original range to a new one. C is an example of sympatric speciation, which can occur through mechanisms such as autopolyploidy, but does not involve a physical splitting of the habitat.

Which of the Following Could Be a Vicariance Event for Species