Results 101 to 110 of about 1,979 (212)
El género Crataegus L. en México está constituido por 13 especies para el centro y norte y probablemente 2 para el sur, de las cuales de 9 a 10 especies son endémicas.
C. A. Núñez-Colín +5 more
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Regionalización morfoestructural de la Sierra Madre del Sur, México
Using an genetic and regional geomorphological approach and using the methods of morphostructural analysis in established the reliefs regionalization of the oceanic–continental interplate marginal transitional suture zone Cocos–North America, divided ...
Mario Arturo Ortiz Pérez +2 more
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After several exploratory surveys to the states of Jalisco and Zacatecas in the Sierra Madre Occidental (SMOC), the bark beetle Dendroctonus rhizophagus Thomas and Bright, 1970 was recorded in 2 geographic localities of Villa Guerrero, Jalisco. These new
Francisco Armendáriz-Toledano +4 more
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Se han utilizado diferentes enfoques con el propósito de analizar los límites entre las regiones Neártica y Neotropical, como índices biogeográficos, análisis panbiogeográficos y análisis biogeográficos cladísticos.
Tania Escalante +2 more
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Reconnaissance mapping along Copper Canyon highway has established ignimbrite stratigraphic relationships over a relatively large area in the central part of the Sierra Madre Occidental volcanic field in western Chihuahua, Mexico.
Swanson, E. R.; Kempter, K. A.; McDowell, F. W.; Mcintosh, W. C.
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MURCIÉLAGOS DE LA SIERRA TARAHUMARA, CHIHUAHUA, MÉXICO
An updated bat inventory of the Sierra Tarahumara, in the southwestern corner of Chihuahua State, based on collections made between 2001 and 2003, examination of museum specimens, and literature data, is presented. Four species are recorded for the first
López-González, Celia +1 more
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Se realizó una comparación entre la cobertura de la vegetación existente en la microcuenca del arroyo El Carpintero cercana a la ciudad de Durango, México, en 1970 y 2000.
Marco Antonio Márquez +2 more
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textThe Batopilas Mining District was a major silver producer, with estimated historic production of more than 300 million ounces. Orebodies consist of high-grade silver in the forms of native silver, acanthite and proustite hosted dominantly in calcite
Kallstrom, Michael Joseph, M.S. in Geological Sciences
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Figures 2–5. Vaejovis sierrae sp. nov., from near Rancho Las Margaritas, Durango, Mexico. 2) Dorsal aspect, male holotype. 3) Ventral aspect, male holotype. 4) Dorsal aspect, female paratype. 5) Ventral aspect, female paratype.Published as part of Sissom,
Sissom, W. David +3 more
core +1 more source
Mexican deforestation in the Sierra Madre
The forests of the Sierra Madre Occidental are being assaulted on several fronts. The Mexican government is legitimately taking millions of acres ofo board feet from the forest to export foreign debt crisis.
Galster, G.
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