Results 61 to 70 of about 506,950 (202)
The political ecology of deforestation in the Sierra Madre Occidental of Chihuahua
, 2012 The forests of the Sierra Madre Occidental and the people who live there have undergone a long history of exploitation, but the current rate of logging in the region is leading to an era of even greater ecological damage and human suffering due to ...
Gingrich, R. W.
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Mineral Exploration Investigation In The Northern Sierra Madre Occidental, Mexico [PDF]
, 2019 The Sierra Madre region is rich in mineralized deposits, but it is hard to access because of the rugged terrain. Remote sensing and GIS can help in mineral exploration and regional structural analysis.
Alqahtani, Labdan Nijr
core +2 more sources
La familia Asteraceae en el estado de Nayarit (México)
Acta Botanica Mexicana, 1998 El estado de Nayarit se ubica en una posición geográfica estratégica al encontrarse en el vértice de tres importantes cadenas montañosas del país (Eje Volcánico Transversal, Sierra Madre Occidental y Sierra Madre del Sur), lo que determina en gran medida
Enrique Ortiz Berm\u00FAdez +2 more
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Fire regimes and forest structure in the Sierra Madre Occidental, Durango, Mexico
Acta Botanica Mexicana, 1997 El fuego frecuente de baja intensidad es un agente clave de disturbio en los bosques de pinos de hojas largas del occidente de Norteamérica; sin embargo, se conoce poco de la ecología del fuego en los bosques mexicanos que han sido menos afectados por la exclusión del fuego.
Peter Z. Fule, W. Wallace Covington
openaire +3 more sources
Freshwater Conservation Priority Areas Are Threatened by Global Mining Activities
Global Change Biology, Volume 32, Issue 3, March 2026.Meeting global mineral demands, including those for decarbonization, risks amplifying threats to freshwater biodiversity. This study presents the first global mapping of conflicts between mining and freshwater conservation, revealing that mining may contaminate up to 1.8 million km of rivers, with over 18% within conservation priority areas.
Mariana Braz Pires +6 more
wiley +1 more source
[Photograph of Sierra Madre Occidental, Mexico]
, 1974 Photograph of the Sierra Madre Occidental in Mexico. Dark green mountains stretch across the background, vertical hills climbing up the main landform. White streaks sit at the bottom of the mountain to the left. Light green trees sit at the bottom of the
Streng, Evelyn Fiedler
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[Sierra Madre Occidental Over Buildings in Mexico]
, 1972 Photograph of the Sierra Madre Occidental over wooden buildings in Mexico. The tall mountains are covered in a layer of green foliage. Wooden buildings covered in wooden, stick, and metal roofs sit to the right, a red barrel in the center of the ...
Streng, Evelyn Fiedler
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SISTEMATIZACIÓN BIOCLIMÁTICA DE LA SIERRA MADRE OCCIDENTAL (MÉXICO) Y SU RELACIÓN CON LOS PISOS DE VEGETACIÓN [PDF]
, 2017 Based on bioclimatic diagnosis of 377 meteorological stations throughout the physiographic province of Sierra Madre Occidental (SMO) and the floristic and vegetation information collected, have been identified bioclimatic territorial units, of which his ...
MACIAS RODRIGUEZ, MIGUEL ANGEL; 67381 +6 more
core +2 more sources
Geofísica Internacional, 1987 Las rocas volcánicas del Cenozoico al Reciente en la parte continental de México están confinadas principalmente en tres provincias geológicas: la Sierra Madre Occidental (SMO), el Cinturón Volcánico Mexicano (CVM) y la provincia alcalina oriental.
M. Cameron, K. Spaulding, K. L. Cameron
openaire +2 more sources
ARBUTUS BICOLOR (ERICACEAE, ARBUTEAE), A NEW SPECIES FROM MEXICO
Acta Botanica Mexicana, 2012 Se describe e ilustra a Arbutus bicolor S. González, M. González et P. D. Sørensen, sp. nov., especie relacionada con A. xalapensis H.B.K., que ha sido por largo tiempo identificada erróneamente como A. glandulosa M.
M. Socorro Gonz\u00E1lez-Elizondo +2 more
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