Diana Ramírez-MejíaUniversidad Nacional Autónoma de México | UNAM
Diana Ramírez-Mejía
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10
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Publications
Publications (10)
The surging demand for commodity crops has led to rapid and severe agricultural frontier expansion globally and has put producing regions increasingly under pressure. However, knowledge about spatial patterns of agricultural frontier dynamics, their leading spatial determinants, and socio-ecological trade-offs is often lacking, hindering contextual...
Land use and land cover change (LULCC) impacts local and
regional climates through various biogeophysical processes. Accurate
representation of land surface parameters in land surface models (LSMs) is
essential to accurately predict these LULCC-induced climate signals. In this
work, we test the applicability of the default Noah, Noah-MP, and Commun...
Land use and land cover change (LULCC) impacts local and regional climates through various biogeophysical processes. Accurate representation of land surface parameters in land surface models (LSMs) is essential to accurately predict these LULCC-induced climate signals. In this work, we test the applicability of the default Noah, Noah-MP, and CLM LS...
La conectividad del paisaje es esencial para fomentar la sustentabilidad de las actividades productivas, conservar y restaurar nuestro patrimonio natural y contribuir a mantener la resiliencia de los ecosistemas, la adaptación y mitigación al cambio climático, en particular, ante la tendencia actual de pérdida de biodiversidad.
Climate change, habitat loss and fragmentation, invasive species, and resource over-exploitation are among the major factors driving biodiversity loss and the current global change crisis. Maintaining and restoring connectivity throughout fragmented landscapes is key to reduce habitat isolation and mitigate anthropogenic impacts. To date, few conne...
Mexican oak forests (genus Quercus) are frequently used for traditional charcoal production. Appropriate management programs are needed to ensure their long-term use while conserving biodiversity and ecosystem services, and associated benefits. A key variable needed to design these programs is the spatial distribution of standing woody biomass. A s...
Background: Human impact over natural ecosystems located in Southern Mexico is increasingly evident. We generated a spatially explicit land use and cover change (LUCC) model to assess current and potential impact of human activities and to identify the influence of variables such as: distance to paved and unpaved roads, human settlements, rivers, s...
Baird's tapir (Tapirus bairdii) is one of the most emblematic mammals of Mesoamerica, but like other large-bodied animals, it is facing an increasing risk of extinction due primarily to habitat loss. Mexico's 'ortion of the Mesoamerican Biological Corridor (MBC-M) is located in one of the main strongholds for Bairds tapir. To assess the MBC-M's eff...
RESUMEN Para evaluar el potencial que el impacto humano tiene para modificar la configuración del paisaje en la porción mexicana del Corredor Biológico Mesoamericano (CBM-MX) elaboramos modelos espacialmente explícitos de cambio de la cobertura y uso del suelo (CCUS), utilizando el programa Dinamica EGO. Para la modelación utilizamos la cartografía...
Los bosques tropicales o selvas son reconocidos por poseer una diversidad de especies mayor de la que se puede encontrar en cualquier otro ecosistema terrestre (Connell, 1978; Gentry, 1988). Dentro de esta gran biodiversidad destaca, por involucrar especies muy carismáticas, la fauna de mamíferos. Como resultado de procesos evolutivos que han molde...
