Final answer:
The likely contributing island biogeography factor resulting in a difference in the number of species found in each body of water could be the geographical isolation or island effects.
Step-by-step explanation:
The likely contributing island biogeography factor resulting in a difference in the number of species found in each body of water could be the geographical isolation or island effects.
Islands, whether they are surrounded by water or high elevation habitats surrounded by lowlands, provide the necessary isolation for species formation. This isolation restricts the movement of species, leading to the development of unique species in each body of water.
For example, Lake Victoria is a tropical lake, which provides a unique environment for species to evolve and adapt to. On the other hand, Lake Huron is a temperate lake, which has different environmental conditions that contribute to a different set of species.