A rough steep mountain habitat will have a higher rate of speciation than a large open grassland. The reason for that is that the open grassland has monotonous living conditions all through it, thus the species are the same with the same adaptations all over it. The rough steep mountain habitat, on the other hand, has multiple different living conditions. The different living conditions are defined by the elevation, and in accordance to it there will different species living at different elevations. Also, the mountain is a natural barrier for the air masses, so while on one side of it there's rainfall, on the other one there's dry weather conditions, which again creates different living conditions, different adaptations by the living organisms, thus different species.
A rough, steep mountain habitat will have much higher rate of speciation than an open grassland habitat, and there are few reasons for that. The rough, steep mountain will have several biomes, depending on the elevation, as the climate is changing with the elevation, thus the living conditions are different. This results in different types of organisms at each biome in accordance with the elevation, so there will be much more different species because of the specializations required. The mountain will also act as a natural barrier for the air masses, resulting in the windward side being much more moderate in the temperature and wetter. The leeward side, on the other hand, will be much drier and warmer. This will result in further specialization, by having different habitats on the two different sides of the mountain even though the elevations are the same. The open grassland habitat will have much less speciation, with the prime reason being that it has monotonous conditions, thus the organisms will be the same all over it as the conditions are the same all over ti.
The mountain would isolate subgroups of the population.
Explanation: APEX 8/22/19
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