Resultados de búsqueda - (((ecologismo OR ecological) OR (ecologist OR geologia)) OR ecologista)*

  1. 321
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    La física aplicada en la caída libre y su demostración por Quiroz Limas, Cecilia Sanjuana

    Publicado 2015
    “…La física es una ciencia natural que estudia la materia, la energía y las relaciones entre ambas, y esta es importante para las demás ciencias, como la biología, la geología, la química y la astronomía, las cuales utilizan teorías y leyes físicas. …”
    Enlace del recurso
    Artículo
  3. 323
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  5. 325

    Fenología y potencial de almacenamiento de carbono de Picea martinezii T.F. Patterson en ecosistemas forestales de Nuevo León. por Valdés Castillo, Valeria Araceli

    Publicado 2018
    “…ABSTRACT With the purpose to contribute to the understanding of ecological role of Picea martinezii T.F. Patterson as carbon storage, due to the small size of its populations and is in Official Mexican Standard NOM-059-SEMARNAT-2010 in the category of danger of extinction. …”
    Enlace del recurso
    Tesis
  6. 326

    Composition, structure and diversity of a mesquite in Pesquería (Northeastern Mexico) por Alanís Rodríguez, Eduardo, Molina Guerra, Víctor Manuel, Jiménez Pérez, Javier, Rubio Camacho, Ernesto Alonso, Mora Olivo, Arturo, Collantes Chávez Costa, Alejandro, Marroquín Castillo, Jonathan Jesús

    Publicado 2017
    “…The research generated quantitative information of the plant community of a mesquite which is in a phase of mature ecological succession. Keywords: Importance value index, Margalef diversity index, Mesquital, Plant community, Prosopis glandulosa, Shannon index…”
    Enlace del recurso
    Artículo
  7. 327

    Naturally-occurring stable isotopes as direct measures of larval feeding efficiency, nutrient incorporation and turnover por Le Vay, Lewis, Gamboa Delgado, Julián

    Publicado 2011
    “…Thus results of studies of the effects of diet composition, developmental stage, growth rates or environmental conditions on stable isotope incorporation will be of broad relevance not only in terms of larval nutrition but can also more broadly inform the design and interpretation of ecological studies.…”
    Enlace del recurso
    Artículo
  8. 328

    Fenología y potencial de almacenamiento de carbono de Picea martinezii T.F. Patterson en ecosistemas forestales de Nuevo León. por Valdés Castillo, Valeria Araceli

    Publicado 2018
    “…ABSTRACT With the purpose to contribute to the understanding of ecological role of Picea martinezii T.F. Patterson as carbon storage, due to the small size of its populations and is in Official Mexican Standard NOM-059-SEMARNAT-2010 in the category of danger of extinction. …”
    Enlace del recurso
    Tesis
  9. 329
  10. 330

    Diversidad de especies arbóreas y arbustivas en áreas con distinto historial antropogénico en el matorral espinoso tamaulipeco por Alanís Rodríguez, Eduardo

    Publicado 2006
    “…Land use history influenced woody species diversity in that clear cutting and agriculture had the highest diversity values but not the highest species richness values. The specific ecological weight of each species was estimated for each plant community using abundance, dominance and frequency values. …”
    Enlace del recurso
    Tesis
  11. 331

    Impacto antropogénico en la región prioritaria para la conservación “El Tokio”, en el altiplano mexicano por Gutiérrez Gutiérrez, Maritza

    Publicado 2008
    “…The ejido “El Tokio” located within the Priority Conservation Region (named the same), comprises the habitat for several species of flora and fauna that have been catalogued in some status of conservation. In spite of the ecological relevance that this fact confers to the area, there is an evident deterioration of this ecosystem as it is demonstrated in the present study by the continuous clearing of the native grasslands for agriculture and the increased area used for this activity. …”
    Enlace del recurso
    Tesis
  12. 332
  13. 333

    Diversidad de especies arbóreas y arbustivas en áreas con distinto historial antropogénico en el matorral espinoso tamaulipeco por Alanís Rodríguez, Eduardo

    Publicado 2006
    “…Land use history influenced woody species diversity in that clear cutting and agriculture had the highest diversity values but not the highest species richness values. The specific ecological weight of each species was estimated for each plant community using abundance, dominance and frequency values. …”
    Enlace del recurso
    Tesis
  14. 334

    Impacto antropogénico en la región prioritaria para la conservación “El Tokio”, en el altiplano mexicano por Gutiérrez Gutiérrez, Maritza

    Publicado 2008
    “…The ejido “El Tokio” located within the Priority Conservation Region (named the same), comprises the habitat for several species of flora and fauna that have been catalogued in some status of conservation. In spite of the ecological relevance that this fact confers to the area, there is an evident deterioration of this ecosystem as it is demonstrated in the present study by the continuous clearing of the native grasslands for agriculture and the increased area used for this activity. …”
    Enlace del recurso
    Tesis
  15. 335

    FACTORES SOCIOECONÓMICOS ASOCIADOS AL SOBREPESO Y LA OBESIDAD EN LA POBLACIÓN COLOMBIANA DE 18 A 64 AÑOS por Mejía Merino, Cristina María, Arango Álzate, Catalina María

    Publicado 2012
    “…To comply with the specific objectives were conducted descriptive analysis, univariate and  bivariate; To explore the association between variables was performed a binary logistic regression analysis, we perform multiple correlation model in order to establish profiles related to lifestyle and finally it presents ecological analysis to see if significant correlations existed between socioeconomic variables with overweight and obesity.  …”
    Enlace del recurso
    Artículo
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    Contribución al conocimiento de las poblaciones de equinos ferales en el noroeste de Coahuila, México. por Ochoa Espinoza, José Javier

    Publicado 2018
    “…The equine owners do not have a clear understanding about the real cost, neither ecological, nor economical which signifies breed that kind of herbivores on rangelands. …”
    Enlace del recurso
    Tesis
  19. 339

    Contribución al conocimiento de las poblaciones de equinos ferales en el noroeste de Coahuila, México. por Ochoa Espinoza, José Javier

    Publicado 2018
    “…The equine owners do not have a clear understanding about the real cost, neither ecological, nor economical which signifies breed that kind of herbivores on rangelands. …”
    Enlace del recurso
    Tesis
  20. 340

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