Resultados de búsqueda - "altitud"

CONFLICTO SOCIO HISTÓRICO EN EL CERRALVO COLONIAL por de León, Gerardo

“…Y si en los días en que vivimos nos parece tedioso y apabullante el trayecto de la altiplanicie septentrional, no deja de causar asombro el coraje de aquellos aventureros que, en exiguas jomadas, avanzaban casi a la buena de Dios a través de llanuras y mesetas El profesor Gerardo Merla, en su estudio sobre las características geográfico-físicas del Noreste, publicados recientemente por la Universidad Autónoma de Nuevo León, define esta planicie como una zona "que abarca grandes extensiones de los estados de Chihuahua, Coahuila, este de Durango, Zacatecas, San Luis Potosí y suroeste de Nuevo León... ubicada sobre altitudes mayores de 1,000 metros, limitada al este por la sierra Madre Oriental, al oeste por la sierra Madre Occidental y al sur por las serranías de Zacatecas y San Luis Potosí".…”
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Natural durability of seven tropical timber species in ground contact at three sites in México por Colín Urieta, Serafín, Carrillo Parra, Artemio, Rutiaga Quiñones, José Guadalupe, López Albarrán, P., Gabriel Parra, Rosalío, Ngangyo Heya, Maginot

“…Test stakes were placed at three sites (Veracruz, Michoacán and Nuevo León) with different climatic, altitude, biodiversity and soil type conditions. After one year of exposure, statistical differences (p < 0.001) in decay level for sites and species were determined. …”
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Deposition of micro-elements through leaf fallen from different types of vegetation, north-eastern Mexico por Domínguez Gómez, Tilo Gustavo, González Rodríguez, Humberto, Cantú Silva, Israel, Ramírez Lozano, Roque Gonzalo, Gómez Meza, Marco Vinicio, Alvarado, María del Socorro

“…Site 1 was located at 1600 m of altitude in a pine forest, mixed with deciduous trees; site 2 was at 550 m in the ecotone of a Quercus spp. forest and submontane scrub; sites 3 and 4 (at 350 m and at 300 m, respectively) were located in the Tamaulipan Thornscrub vegetation. …”
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Species composition and seasonal abundance of sandflies (Diptera: Psychodidae: Phlebotominae) in coffee agroecosystems por Pérez, Jeanneth, Virgen, Armando, Rojas, Julio Cesar, Rebollar Téllez, Eduardo Alfonso, Alfredo, Castillo, Infante, Francisco, Mikery, Oscar, Marina, Carlos Felix, Ibáñez Bernal, Sergio

“…Insect sampling was performed on three plantations located at different altitudes: Finca Guadalupe Zajú [1,000 m above sea level (a.s.l.)], Finca Argovia (613 m a.s.l.) and Teotihuacán del Valle (429 m a.s.l.). …”
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Composición taxonómica y abundancia espacio-temporal de la ictiofauna del Río Presidio, Sinaloa, México por Sánchez Gonzáles, Sergio, Ruiz Campos, Gorgonio, Herrrera Flores, Alejandro, Lozano Vilano, María de Lourdes, González Acosta, Adrián F., Inzunza Beltrán, Héctor Manuel

“…Species richness and salinity showed a direct relationship and an inverse relationship with the altitude. Based on the coefficient of similarity of species among sites two fish assemblages were identified. …”
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Distribución ecológica de la herpetofauna en gradientes altitudinales superiores del Cerro El Potosí, Galeana, Nuevo León, México por Contreras Lozano, Jorge Armando, Lazcano, David, Contreras Balderas, Armando Jesús

“…Cerro El Potosí has an altitude gradient between 2000 and 3750 m, where distinct plant communities are found. …”
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Perfil morfo funcional de triatletas que representan al estado de Durango en Olimpiada Nacional por Ortiz Martínez, Maria Guadalupe

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Deposición de hojarasca y retorno potencial de nutrimentos en diferentes comunidades de vegetación por Domínguez Gómez, Tilo Gustavo

“…Litter constituents (leaves, reproductive structures (flowers, fruits and seeds), twigs or branches, and miscellaneous (unidentified residues, fine plant material such as bark, insect bodies and feces, among others)) were measured at 15-day intervals between December 21, 2006 and December 20, 2007 in four experimental sites: one site was located in a pine (Pinus pseudostrobus Lindl.) forest (Bosque Escuela at 1600 m of altitude), second in the ecotone of a Quercus spp. forest and the Tamaulipan thornscrub (Crucitas at 550 m), third and fourth sites were in the Tamaulipan thornscrub (Campus at 350 m and Cascajoso at 300 m). …”
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Deposición de hojarasca y retorno potencial de nutrimentos en diferentes comunidades de vegetación por Domínguez Gómez, Tilo Gustavo

“…Litter constituents (leaves, reproductive structures (flowers, fruits and seeds), twigs or branches, and miscellaneous (unidentified residues, fine plant material such as bark, insect bodies and feces, among others)) were measured at 15-day intervals between December 21, 2006 and December 20, 2007 in four experimental sites: one site was located in a pine (Pinus pseudostrobus Lindl.) forest (Bosque Escuela at 1600 m of altitude), second in the ecotone of a Quercus spp. forest and the Tamaulipan thornscrub (Crucitas at 550 m), third and fourth sites were in the Tamaulipan thornscrub (Campus at 350 m and Cascajoso at 300 m). …”
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