Complex sentence: Those found at lower latitudes tend to prefer higher altitudes and dryer, rocky habitats, while the species that occur at more northern latitudes prefer lower elevations and environments that have more vegetation and moisture.
Split into simpler sentences: Those found at lower latitudes tend to prefer higher altitudes and dryer, rocky habitats. On the other hand, species that occur at more northern latitudes prefer lower elevations and environments that have more vegetation and moisture.