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Consequences of Deforestation and Climate Change on Biodiversity

Consequences of Deforestation and Climate Change on Biodiversity

Roland Cochard
Copyright: © 2011 |Pages: 28
ISBN13: 9781609606190|ISBN10: 1609606191|EISBN13: 9781609606206
DOI: 10.4018/978-1-60960-619-0.ch002
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MLA

Cochard, Roland. "Consequences of Deforestation and Climate Change on Biodiversity." Land Use, Climate Change and Biodiversity Modeling: Perspectives and Applications, edited by Yongyut Trisurat, et al., IGI Global, 2011, pp. 24-51. https://doi.org/10.4018/978-1-60960-619-0.ch002

APA

Cochard, R. (2011). Consequences of Deforestation and Climate Change on Biodiversity. In Y. Trisurat, R. Shrestha, & R. Alkemade (Eds.), Land Use, Climate Change and Biodiversity Modeling: Perspectives and Applications (pp. 24-51). IGI Global. https://doi.org/10.4018/978-1-60960-619-0.ch002

Chicago

Cochard, Roland. "Consequences of Deforestation and Climate Change on Biodiversity." In Land Use, Climate Change and Biodiversity Modeling: Perspectives and Applications, edited by Yongyut Trisurat, Rajendra P. Shrestha, and Rob Alkemade, 24-51. Hershey, PA: IGI Global, 2011. https://doi.org/10.4018/978-1-60960-619-0.ch002

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Abstract

Ever since their evolution, forests have been interacting with the Earth’s climate. Species diversity is particularly high in forests of stable moist tropical climates, but patterns of diversity differ among various taxa. Species richness typically implies high ecosystem resilience to ecosystem disturbances; many species are present to fill in newly created niches and facilitate regeneration. Species loss, on the other hand, often entails environmental degradation and erosion of essential ecosystem services. Until now species extinction rates have been highest on tropical islands which are characterized by a high degree of species endemism but comparatively low species richness (and therefore high vulnerability to invasive species). Deforestation and forest degradation in many countries has lead to forest fragmentation with similar effects on increasingly insularized and vulnerable forest habitat patches. If forest fragments are becoming too small to support important keystone species, further extinctions may occur in cascading ways, and the vegetation structure and composition may eventually collapse. Until now relatively few reported cases of species extinctions can be directly attributed to climate change. However, climate change in combination with habitat destruction, degradation, and fragmentation may lead to new waves of species extinctions in the near future as species are set on the move but are unable to reach cooler refuges due to altered, obstructing landscapes. To mitigate the future risks of extinctions as well as climate change, major efforts should be undertaken to protect intact large areas of forests and restore wildlife corridors. Carbon sequestration may be seen as just one of many other environmental services of forest biodiversity that deserve economic valuation as alternatives to conversion to often unsustainable agricultural uses.

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