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Madagascar Eastern Highlands includes the middle and upper catchments of Madagascar's eastern coastal rivers. [ 4 ] Northwestern Madagascar encompasses the westward-flowing drainage basins from the northern tip of Madagascar to the Mahavavy du Sud River, including the Mananjeba , North Mahavavy (Mahavavy du Nord), Sambirano , Ankofia , Sofia ...
The Madagascar dry deciduous forests represent a tropical dry forest ecoregion situated in the western and northern part of Madagascar. The area has high numbers of endemic plant and animal species but has suffered large-scale clearance for agriculture.
This is the area with the highest level of plant endemism in Madagascar, with 48% of the genera and 95% of the species endemic. [2] Many constituent plants show extreme adaptations to drought. Spiny plants of the endemic subfamily Didiereoideae form a conspicuous component, especially towards the east.
Having completed its separation from all other land masses more than 60 million years ago, Madagascar’s plant and animal life evolved in isolation. The rainforests are inscribed for their importance to both ecological and biological processes as well as their biodiversity and the threatened species they support.
Madagascar is a large island in the Indian Ocean located 400 kilometres (250 mi) off the eastern coast of Southern Africa, [1] east of Mozambique. It has a total area of 587,040 square kilometres (226,660 sq mi) with 581,540 square kilometres (224,530 sq mi) of land and 6,900 square kilometres (2,700 sq mi) of water.
The abiotic factors that environmental gradients consist of can have a direct ramifications on organismal survival. Generally, organismal distribution is tied to those abiotic factors, but even an environmental gradient of one abiotic factor yields insight into how a species distribution might look.
This is a list of freshwater ecoregions in Africa and Madagascar as identified by the World Wildlife Fund (WWF). The WWF categorizes the Earth's land surface into ecoregions, which are defined as "large area[s] of land or water containing a distinct assemblage of natural communities and species." These ecoregions are further grouped into ...
edaphic factors are abiotic factors regarding soil, such as the coarseness of soil, local geology, soil pH, and aeration; and social factors include land use and water availability. An example of the effects of abiotic factors on species distribution can be seen in drier areas, where most individuals of a species will gather around water ...