EFECTO DE LA ORIENTACIÓN DE LA LADERA SOBRE LA ESTRUCTURA POBLACIONAL Y ECOMORFOLOGÍA DE NEOBUXBAUMIA TETETZO (CACTACEAE)

  • VÍCTOR LÓPEZ-GÓMEZ Universidad Nacional Autónoma de México
  • PAULINA ZEDILLO-AVELLEYRA Universidad Nacional Autónoma de México
  • SOONYOO ANAYA-HONG Universidad Nacional Autónoma de México
  • ENRIQUE GONZÁLEZ-LOZADA Universidad Nacional Autónoma de México
  • ZENÓN CANO-SANTANA Universidad Nacional Autónoma de México
Keywords: branch orientation, density, giant columnar cactus, size structure

Abstract

Slope orientation modifi es fi eld microclimatic conditions. Despite this well-known pattern, there is few empirical evidence of its influence on plant populations, and even lesser for cactus populations. Our goals were to determine the effect of N and S slope orientation on some population attributes (total stem area, density and size structure) and ecomorphology (number branch and orientation) of Neobuxbaumia tetetzo (Cactaceae) taller than 1.5 m in Valle de Zapotitlán, Puebla. In southerly slope, N. tetetzo showed higher density and a higher tendency of branches to northeast orientation than N. tetetzo in northerly slope. In the northern slope cacti had a higher number of branches than in the southern one. We conclude that slope orientation showed a remarkable effect on density, size structure, and ecomorphology of N. tetetzo; nevertheless, it is needed to obtain microclimatic records at the study site to clarify our understanding about slope orientation effect on N. tetezo population.

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EFECTO DE LA ORIENTACIÓN DE LA LADERA SOBRE LA ESTRUCTURA POBLACIONAL Y ECOMORFOLOGÍA DE <em>NEOBUXBAUMIA TETETZO</em> (CACTACEAE)
Published
2012-12-15
How to Cite
LÓPEZ-GÓMEZ, V., ZEDILLO-AVELLEYRA, P., ANAYA-HONG, S., GONZÁLEZ-LOZADA, E., & CANO-SANTANA, Z. (2012). EFECTO DE LA ORIENTACIÓN DE LA LADERA SOBRE LA ESTRUCTURA POBLACIONAL Y ECOMORFOLOGÍA DE <em>NEOBUXBAUMIA TETETZO</em&gt; (CACTACEAE). Botanical Sciences, 90(4), 453-457. https://doi.org/10.17129/botsci.473
Section
ECOLOGY / ECOLOGÍA