Results 101 to 110 of about 1,979 (212)

DISTRIBUCIÓN Y CARACTERIZACIÓN ECO-CLIMÁTICA DEL GÉNERO Crataegus L. (Rosaceae, SUBFAM. Maloideae) EN MÉXICO

open access: yesRevista Chapingo Serie Horticultura, 2008
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
doaj  

Regionalización morfoestructural de la Sierra Madre del Sur, México

open access: yes, 1995
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
core   +1 more source

New record and extension of the distribution range of the bark beetle Dendroctonus rhizophagus (Curculionidae: Scolytinae) Nuevo registro y ampliación del área de distribución del descortezador Dendroctonus rhizophagus (Curculionidae: Scolytinae)

open access: yesRevista Mexicana de Biodiversidad, 2012
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
doaj  

Las provincias biogeográficas del Componente Mexicano de Montaña desde la perspectiva de los mamíferos continentales The provinces of Mexican Mountain Component based on continental mammals distribution

open access: yesRevista Mexicana de Biodiversidad, 2005
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
doaj  

Major ignimbrites and volcanic centers of the Copper Canyon area: A view into the core of Mexico's Sierra Madre Occidental

open access: yes, 2006
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.
core  

MURCIÉLAGOS DE LA SIERRA TARAHUMARA, CHIHUAHUA, MÉXICO

open access: yes, 2006
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
core   +1 more source

Reemplazo de áreas arboladas por chaparrales y comunidades herbáceas en el período 1970-2000 en una microcuenca de Durango, México

open access: yesInvestigaciones Geográficas, 2005
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
doaj  

Fluid and metal sourcing for the native silver deposits in the Batopilas Mining District, Chihuahua, Mexico

open access: yes, 2012
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
core  

Figures 2–5 in Two new Vaejovis C.L. Koch 1836 from highlands of the Sierra Madre Occidental, Durango, Mexico (Scorpiones, Vaejovidae)

open access: yes, 2016
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

open access: yes, 1996
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.
core  

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