Browsing by Subject "Pattem"

Now showing 1 - 2 of 2
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    Un diseño para la investigación en prácticas escolares
    (Universidad de Zaragoza, Asociación Universitaria de Formación del Profesorado (AUFOP), 1989) María Luz, Elias Jiménez-Ridruejo
    Uno de los caminos para formar a los alumnos en el campo de la Investigación Activa en el Aula es el de las Prácticas Escolares ya que, en ese momento, se presenta una idónea situación para la realización de investigaciones. El Modelo de Investigación que, durante Prácticas Escolares, se lleva a cabo en la E.U. de Magisterio de Soria, es el contenido de esta comunicación.
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    Relative representation of pheidole (hymenoptera : formicidae)in local ground ant assemblages of the Americas
    (Murcia : Universidad de Murcia, Servicio de Publicaciones, 1993) Fowler, H.G.; Facultad de Biología
    Using 195 published ground ant wmmunity surveys from the Amencas, the fauna1 representation of Pheidole was greater than any other genus. No significant relationship between the percent faunal representation with latitude was found, although their representation was much richer in the tropics. Tree crops had significantly higher percentages of species of Pheidole than did other habitat types. Furthermore, a significant negative relationship was found between the percent representation of Pheidole and al1 formicines. This effect was stronger than the relationship between formicines and latitude. No significant negative relations were found for other subfamilies. This suggests that Pheidole may compete strongly with formicines, or that these groups are placed on opposite ends of an enviromental stress gradient