期刊
NEOTROPICAL ICHTHYOLOGY
卷 14, 期 2, 页码 -出版社
SOC BRASILEIRA ICTIOLOGIA
DOI: 10.1590/1982-0224-20150162
关键词
Community ecology; Environmental filtering; Functional groups; Functional redundancy; Freshwater wetland
类别
资金
- Universidad Nacional Autonoma de Mexico - Programa de Apoyo a Proycctos de Investigacion e Innovacion Tecnologica [PAPPIT-IN206114]
- Conscjo Nacional para la Ciencia y Tecnologia (CONACYT) through Posgrado en Ciencias Biologicas (UNAM) [280585]
The characterization of species' functional traits is a major step in the understanding and description of communities in natural habitats. The classification of species into functional groups is a useful tool to identify redundancy and uniqueness. We studied the fish community of a pristine freshwater wetland in the Sian Ka'an Biosphere Reserve by analysing two multidimensional functions: food acquisition and locomotion. We investigated changes in the functional group structure between habitats (permanent and temporary pools) and seasons (dry and wet). Six functional groups with different ecological characteristics were detected, two of which had high functional redundancy and three of them were represented by single species with unique ecological functions. In permanent pools during the dry season, functional group richness and diversity were lower, while evenness was higher. During the wet season, all functional groups were detected and similar functional group structure was found between habitats. These results suggest an effect of environmental filtering during the dry season and niche complementarity during the wet season.
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