Relief, soil and tree community attributes jointly shape liana community structure and diversity in a Neotropical rainforest landscape
Por:
Ek-Rodríguez I.L., Navarrete-Segueda A., Siebe C., Meave J.A., Vela-Correa G., Ibarra-Manríquez G.
Publicada:
1 ene 2025
Resumen:
Lianas are a fundamental component of tropical forests. Yet, their complex environmental interactions challenge our understanding of the variability in liana community attributes, which requires the integration of multiple environmental factors. We asked how relief, soil and tree community structure drive liana community assembly in a tropical rainforest of eastern Mexico. Using a geopedological approach, we established fifteen 0.5-ha plots across a complex landscape to census all lianas with basal diameter = 1 cm. Additionally, we estimated slope, elevation, soil physicochemical properties, and tree community structural attributes, and related these factors to liana community structure and diversity. A principal component analysis showed that the main gradients of environmental variation (explained variance, PC1 = 37.3 %, PC2 = 19.6 %, PC3 = 14.6 %) are related to slope steepness, elevation, clay fraction, tree basal area, and the proportion of pioneer trees. By using these axes as explanatory variables in generalized linear models (GLMs), we found a significant relationship with liana abundance in the community, liana diameters and diversity. Moreover, the response of liana abundance to environmental heterogeneity varied among species. To advance our understanding of the mechanisms underlying liana community assembly in highly diverse forests, it is necessary to jointly assess the effects of multiple factors involved in liana performance and to account for the differential responses of liana species to environmental heterogeneity. © 2025 Elsevier B.V.
Filiaciones:
Ek-Rodríguez I.L.:
Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua carretera a Pátzcuaro No. 8701, Col. San José de La Huerta, Michoacán, Morelia, 58190, Mexico
Navarrete-Segueda A.:
Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua carretera a Pátzcuaro No. 8701, Col. San José de La Huerta, Michoacán, Morelia, 58190, Mexico
Siebe C.:
Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Coyoacán, 04510, Mexico
Meave J.A.:
Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Coyoacán, 04510, Mexico
Vela-Correa G.:
Universidad Autónoma Metropolitana, Xochimilco, Departamento El Hombre y su Ambiente, Calzada del Hueso 1100, Villa Quietud, Ciudad de México, Coyoacán, 04960, Mexico
Ibarra-Manríquez G.:
Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua carretera a Pátzcuaro No. 8701, Col. San José de La Huerta, Michoacán, Morelia, 58190, Mexico
|