Southern Africa and Madagascar

The negative impacts of residential and commercial development on conifers is so severe that it has led to conifer species becoming Critically Endangered. Ironically, the very system put in place to protect biodiversty, such as national parks, can have a negative impact on biodiversity. Here the most detrimental impacts can be from the visiting public by bringing an increased risk of fire and the introduction of harmful pests and diseases. As a result of an explosive growth rates in the human population over the last 50 years there has been a steady drift of people from the city centres into urban areas. It is estimated that 60% of the Earth's population will live in urban areas by 2030. Hence these increasing population densities and mounting development pressures are causing large tracks of land in the immediate surroundings of urban areas undergoing a process of what is known as urbanisation. This phenomenon directly alters forest ecosystems by removing or fragmenting forest cover. It indirectly alters forest ecosystems by modifying hydrology, altering nutrient cycling, modifying disturbance regimes, and changing atmospheric conditions. 

<em>Tetraclinis articulata</em>, Malta

Tetraclinis articulata, Malta© M.Gardner, RBGE

Taxa in the category - Southern Africa and Madagascar:

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Podocarpus capuronii de Laub.

One of five threatened species of Podocarpus endemic to Madagascar where threats include deforestation, cutting for firewood, fires and grazing. Read full species entry >

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Podocarpus henkelii Stapf ex Dallim. & A.B.Jacks.

Occurs in South Africa, Malawi,Tanzania and Zimbabwe where logging for its valuable wood and deforestation threaten it. Read full species entry >

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Podocarpus humbertii de Laub.

One of five threatened species of Podocarpus endemic to Madagascar where it is has a fragmented distribution due to grazing and habitat degredation.     Read full species entry >

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Podocarpus madagascariensis var. procerus ( de Laub. ) Silba

One of five threatened species of Podocarpus endemic to Madagascar and because of ongoing logging and deforestation it now has a very restricted area of occupancy. Read full species entry >

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Podocarpus perrieri Gaussen & Woltz

One of five threatened Podocarpus species endemic to Madagascar where it has been severely impacted by deforestation Read full species entry >

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Podocarpus rostratus M.Laurent

One of five Podocarpus species endemic to Madagascar and only known from three highly disjunct localities where deforestation, grazing and fire have had major impacts Read full species entry >

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Widdringtonia cedarbergensis J.A.Marsh

Endemic to South Africa where historical exploitation for its valuable timber and more recently fire have greatly reduced the population Read full species entry >

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Widdringtonia schwarzii (Marloth) Mast.

Endemic to the eastern Cape Province of South Africa where past over-exploitation has greatly reduced the population; today the major threats include wildfires Read full species entry >

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