In an ecosystem, the average temperature increases, causing a shorter winter. There are two varieties of rabbits in the area, white fur, rabbits, and brown fur rabbits, which scenario is most likely.
In this scenario, it is most likely that the white fur rabbits would be at a disadvantage. With a shorter winter, there may be less snow on the ground, making it easier for predators to spot the white fur rabbits against the now more visible background. Brown fur rabbits, on the other hand, may have an advantage as their darker fur may help them blend in better with the surroundings.
Overall, the increased temperature and shorter winter could potentially lead to a shift in the population dynamics of the two rabbit varieties, favoring the brown fur rabbits over the white fur rabbits in the ecosystem.