Geographic distribution of global economic important mahogany complex: a review

Abstract

Mahogany is the collective international trade name for the high-value tropical and subtropical timber tree species of the family Meliaceae. Mahogany species are noted for their deep red-brown heartwood and are widely used in the construction, boat building, interior decoration (particularly paneling and floor tiles), and in the manufacture of furniture. Across their natural geographical distribution range, many rural communities depend for their livelihoods on the genetic resources of the species as they provide natural products and services. However, mahogany populations across their native range are threatened by deforestation, habitat fragmentation, excessive logging and genetic erosion. In addition, climate change may bring about a shift in the distributional range of the native species. To safeguard the rich diversity of mahogany requires a conscientious effort in policy formulation and the enforcement of existing laws in regard to the management and conservation of the species. In addition, it is imperative that mahogany is used as an integral component in agroforestry systems and in reforestation efforts, as well as in the restoration of degraded forest ecosystems in order to protect the genetic resources of the species. The aim of this review was to highlight the threats to the sustainability of the species. We conducted literature review to examine the geographic distributional range of a mahogany complex (Khaya spp, Entandrophragma spp, Cedrela spp, Toona spp, Swietenia spp) at global, regional and ecosystem scales. We used maps as annotated diagrams to show the probable geographic global distribution range of the mahogany complex. The Khaya spp. and Entandrophragma spp. are native to Africa, Cedrela spp. And Swietenia spp. are native to Central and South America, whereas, Toona spp. are found primarily in southeast Asia