28.6 Conclusion
Montane forest assemblages of the Sierra de Manantlán contain a large number of sympatric Quercus species which coexist through a combination of niche differentiation, dispersal limitation, and density-dependent seedling recruitment. Species composition is very variable from site to site, and oak species dominating the canopy vary over relatively short distances. We propose that canopy composition will vary strongly with time as a result of density-dependent recruitment. The Sierra de Manantlán is an important site for the study of oak biogeography on the American continent, and may offer important insights into speciation patterns.
Although the Sierra de Manantlán is a protected area, human impacts are now a significant force shaping the structure and composition of the forest. There are substantial challenges ahead in ensuring that exploitation of valuable forest resources, including Quercus timber, does not compromise the productive capacity or biodiversity of these forests. We contend that the true threat to oak survival in Manantlán is that associated to human impacts. With this in mind, future research should consider the effect of man-induced disturbances on oak forest dynamics and forest recovery after silvicultural interventions.
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Olvera-Vargas, M., Figueroa-Rangel, B.L., Vázquez-López, J.M., Brown, N. (2006). Dynamics and Silviculture of Montane Mixed Oak Forests in Western Mexico. In: Kappelle, M. (eds) Ecology and Conservation of Neotropical Montane Oak Forests. Ecological Studies, vol 185. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-28909-7_28
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