Abstract

GARCIA-ARANDA, Mario A.; ESTRADA-CASTILLON, A. Eduardo; JURADO-YBARRA, Enrique  and  GONZALEZ-URIBE, Dino U.. Analysis of eleven natural populations of Taxus globosa in the Sierra Madre Oriental. Madera bosques [online]. 2011, vol.17, n.1, pp.93-104. ISSN 2448-7597.

Eleven populations of Taxus globosa were located and evaluated along of the Sierra Madre Oriental in the States of Nuevo Leon and Tamaulipas, Mexico. A complete inventory of the individuals in all Taxus globosa populations was recorded; data of height, diameter, canopy cover and density were also evaluated. The population data were organized in databases on rank classes into six height categories, seven canopies cover categories and seven diameter categories. A χ² test indicates that all the populations showed a normal distribution. The canopy cover and diameter variables showed higher values in correlation analysis (r = 0.9). The population curve tendency on height, canopy cover and diameter shows that isolated or inaccessible populations of Taxus globosa Las Tinajas, Julilo and La Camotera are the populations with more young individuals than the rest of the northeastern populations.

Keywords : Quantification; distribution; northeastern Mexico; Taxus globosa.

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