Revista Chapingo Serie Ciencias Forestales y del Ambiente
Universidad Autónoma Chapingo
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Revista Chapingo Serie Ciencias Forestales y del Ambiente
Volume XXI, issue 3, September - December 2015
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Efecto de la fragmentación en la morfometría foliar y el ambiente de Quercus germana Schldl. & Cham. (Fagaceae) en Xalapa, Veracruz
Fragmentation effect in the leaf morphometry and environment of Quercus germana Schldl. & Cham. (Fagaceae) in Xalapa, Veracruz

Anantli Martínez-Munguía; Gustavo Ortiz-Ceballos; Virginia Rebolledo-Camacho; Antonio Andrade-Torres; Lourdes Georgina Iglesias-Andreu; Pablo Octavio-Aguilar

http://dx.doi.org/10.5154/r.rchscfa.2015.01.001

Received: 28/01/2015

Accepted: 08/07/2015

Available online: 2015-09-28 / pages.267-280

 

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  • descriptionAbstract

    Quercus germana is an endemic species from the cloud forest of Mexico. The selection pressure resulting from fragmentation and environmental changes suggests the presence of phenotypic differentiation. We evaluated the relationship between the environment and the leaf morphology of Q. germana at six sites in the area of Xalapa, Veracruz. Ten leafs of 30 specimens per site were collected. Ten leafs morphometric and seven environmental characteristics were measured and variance analyses were performed with a discriminant analysis. Additionally, UPGMA phylogenetic trees were constructed and the Mahalanobis distances were compared using a Mantel test to estimate the relationship between morphometry and the environment. The morphological variables that best separated the sites were mucrones, ribs and petiole size. Environmentally, the most discriminant variables were light, temperature and loss of humidity. The Mantel test did not show any relationship between the morphometric and the environmental differences (r = 0.090, P = 0.3060), so there is not any association between the two. Because morphological differences were found in sub-populations despite of the short distance between them, these may be affected by fragmentation even without environmental influences.

    Keyworks: Endemic species, phenotypic differentiation, environmental variables, morphological variation.
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  • starCite article

    Martínez-Munguía, A., Ortiz-Ceballos, G., Rebolledo-Camacho, V., Andrade-Torres, A., Iglesias-Andreu, L. G.,  &  Octavio-Aguilar, P. (2015).  Fragmentation effect in the leaf morphometry and environment of Quercus germana Schldl. & Cham. (Fagaceae) in Xalapa, Veracruz. Revista Chapingo Serie Ciencias Forestales y del Ambiente, XXI(3), 267-280. http://dx.doi.org/10.5154/r.rchscfa.2015.01.001