Land use/cover, landforms and fragmentation patterns in a tropical dry forest in the southern Pacific region of Mexico
Por:
Galicia L., Zarco-Arista A.E., Mendoza-Robles K.I., Palacio-Prieto J.L., García-Romero A.
Publicada:
1 jul 2008
Resumen:
In spite of widely documented studies of deforestation rates and land use/cover changes in tropical dry forests in Mexico, relatively little is known about fragmentation patterns in such forests. This study defines the spatial distribution of landforms and land use/cover types the lower Papagayo River basin and examines their influence on fragmentation patterns and biological diversity in a tropical dry forest in that southern Pacific region. The land use/cover map was constructed from aerial photographs, Landsat TM imagery (2000) and fieldwork. Landform units were defined based on altitude, slope, lithology and morphology. Landscape fragmentation parameters were obtained using FRAGSTATS (version 3.3) considering the numbers of patches, mean, minimum and maximum patch size, edge density, total edge and connectivity. Results show tropical dry forest to be remnant vegetation (similar to 11 per cent), characterized by isolation and low connectivity. Land use/cover types have different eff
Filiaciones:
Galicia L.:
Univ Nacl Autonoma Mexico, Dept Geog Fis, Inst Geog, Coyoacan, DF, Mexico
Zarco-Arista A.E.:
Instituto Nacional de Ecología, Col. Insurgentes Cuicuilco, Periférico 5000, Delegación Coyoacán 04530, Mexico
Mendoza-Robles K.I.:
Letras Inst Geog, Coyoacan, DF, Mexico
Palacio-Prieto J.L.:
Univ Nacl Autonoma Mexico, Dept Geog Fis, Inst Geog, Coyoacan, DF, Mexico
García-Romero A.:
Univ Nacl Autonoma Mexico, Dept Geog Fis, Inst Geog, Coyoacan, DF, Mexico
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