New PDF release: Big-Leaf Mahogany: Genetics, Ecology, and Management

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By Timothy C. Whitmore (auth.), Ariel E. Lugo, Julio C. Figueroa Colón, Mildred Alayón (eds.)

ISBN-10: 0387217789

ISBN-13: 9780387217789

ISBN-10: 0387988378

ISBN-13: 9780387988375

Big-Leaf Mahogany is crucial advertisement bushes species of the tropics. present debate pertaining to no matter if to guard it as an endangered species has been hampered via the shortcoming of whole, definitive medical documentation. This publication reviews on very important examine at the ecology of big-leaf mahogany, together with genetic adaptations, regeneration, common distribution styles and the silvicutural and alternate implications for the tree.

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Additional info for Big-Leaf Mahogany: Genetics, Ecology, and Management

Example text

Big-leaf mahogany has the most extensive range, from central México into Bolivia and Brazil. The ranges of Pacific coast and big-leaf mahogany overlap, and they probably interbreed naturally (Whitmore and Hinojosa 1977). The range of small-leaf mahogany is discontinuous with that of the other two species, and thus it does not interbreed naturally, although it does hybridize with big-leaf mahogany when the two are planted nearby (Whitmore and Hinojosa 1977). Provenance Collection and Study Sites Sample sites were distributed as evenly as possible in the designated geographic area (Barres 1963).

1996) found average pollen movement distances of 142 m in Pithecellobium elegans by using microsatellite markers. Such regular pollen movement would clearly inhibit local population divergence. If populations in a region are genetically similar, as our data suggest, then genetic erosion at the regional scale may be counteracted so long as some substantial, ecologically intact forest remains undisturbed in the region. D. E. 7. 090 Eguiarte et al. 1992 Hamrick and Murawski 1990 O’Malley et al. 1988 Hamrick and Murawski 1990 Stacy et al.

No studies to date have directly examined the possibility that mahogany might show inbreeding depression, although such genetic effects would be predicted in habitually outcrossing species. The outcrossed mating system of mahogany has important management consequences because isolated trees (such as those left as seed trees after timber extraction) or populations whose densities have been severely reduced might be expected to experience reproductive failures or might produce seeds with low germinability or other evidences of inbreeding depression.

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Big-Leaf Mahogany: Genetics, Ecology, and Management by Timothy C. Whitmore (auth.), Ariel E. Lugo, Julio C. Figueroa Colón, Mildred Alayón (eds.)

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