Residential and commercial development

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 - Residential and commercial development:

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Abies delavayi subsp. fansipanensis (Q.P.Xiang) Rushforth

This subspecies, described in 1997, is restricted to a single mountain in Northern Việt Nam. The main threats are its small population size and restricted distribution which make it potentially susceptible to stochastic events.  Read full species entry >

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Abies pinsapo Boiss.

The Spanish fir has two subspecies distributed in southern Spain and northern Morocco where threats include fire, grazing and climate change. Read full species entry >

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Abies pinsapo var. marocana (Trabut) Ceballos & Bolanos

The Moroccan fir is restricted to two small forests in the Rif Mountains of northern Morocco where over a period of 60 years it has suffered a 70% decline. Read full species entry >

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Amentotaxus argotaenia (Hance) Pilg

A widespread species that only ever occurs in small isolated populations. It is currently assessed as Near Threatened due to range wide deforestation. Read full species entry >

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Amentotaxus assamica D.K.Ferguson

Poorly known species endemic to India where threats include forest clearance for agriculture, logging, firewood collection and infrastructure development Read full species entry >

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Calocedrus macrolepis Kurz

A widespread species that has been exploited for timber and resin. Difficulties in estimating the extent of its decline and a lack of information about its staus is some parts of its range have resulted in an assessment of Near Threatened. Read full species entry >

Foliage
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Cedrus libani A.Rich.

Native to mountains adjacent to the north-eastern Mediterranean coast in Turkey, Syria and Lebanon. Threats include pathogens, fire, urbanisation, selective felling, activities associated with winter sports and grazing. Read full species entry >

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Cephalotaxus hainanensis H.L.Li

Restricted to the island of Hainan, China where the main threat has been exploitation of the bark and leaves for the valuable medicinal extracts. Habitat conversion and deforestation are now the most current threats Read full species entry >

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