| Summary: | Instituto de Investigaciones Agropecuarias y Forestales. Facultad de Biología. Facultad de Medicina Veterinaria y Zootecnia. Facultad de Agrobiología. Facultad de Químico Farmacobiología. Programa Institucional de Maestría en Ciencias Biológicas Mexico is one of the countries most affected by climate change due to population growth, urbanization, ocean acidification, enormous amounts of solid and liquid waste, and loss of biodiversity. Some forest ecosystems are expected to be more impacted due to their biological fragility and the extensive human management to which coniferous forests have been subjected. To restore oyamel forests more rapidly, it is necessary to understand patterns of genetic variation among provenances along environmental gradients. Climate change will cause a decoupling between forest populations and the climate of the places they inhabit, as forest populations will migrate to higher elevations and/or latitudes, reappear in a different location, or disappear altogether. Therefore, it is necessary to incorporate management measures that seek to re-couple populations to the new environments generated by global warming, such as assisted migration, which consists of collecting seeds and producing seedlings in nurseries to later plant them in places where climate models project that their favorable climate will occur in the near future. Chapter I analyzed and compared the patterns of altitudinal genetic variation between Abies religiosa provenances in the nursery stage, with the objective of comparing the expression of patterns of altitudinal genetic variation between plants originating from collected seed and plants rescued from natural regeneration of Abies religiosa, coming from two similar altitudinal gradients of the Monarch Butterfly Biosphere Reserve (RBMM). México es uno de los países más afectados por el cambio climático debido al crecimiento demográfico, la urbanización, la acidificación de los océanos, las enormes cantidades de residuos sólidos y líquidos y la pérdida de ...
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