Plant community attributes of a tropical dry forest physiognomically dominated by heteroflorum sclerocarpum (fabaceae)
Background: Heteroflorum (Fabaceae) is a monospecific genus endemic to western Mexico. Community attributes of the forest where H. sclero-carpum is found are scarcely known, as well as its similarity with other tropical seasonal forests.Question: What is the composition, structure, and diversity of the tropical deciduous forest where H. sclerocarpum is physiognomically dominant? Study site and date: The buffer area of the Zicuirán-Infiernillo Biosphere Reserve, in the Churumuco municipality of Michoacán, Mexico, in 2014. Methods: In three 0.1-ha sites, we sampled trees with a diameter at breast height ≥ 1 cm and lianas whose rooted stem had a diameter of ≥ 1 cm. We calculated the density, biomass, rank-abundance, rank-basal area curves, as well as alpha and beta diversity measures for each site.Results: We recorded 64 species from 21 families in 0.3 ha. Fabaceae had the highest number of genera, species, individuals, and biomass in all sites sampled. The sites varied in richness (33-41 species), density (176-247 individuals), basal area (2-2.9 m²), and maximum height of trees (12-16 m). Rank-abundance curves differed significantly among sites. Rarefaction curves showed that °Dα and ¹Dα did not differ among sites, while ²Dα separated one of the sites, which also showed a different diversity profile. Beta diversity did not show a strong species turnover among sites (°Dβ, 1.38-1.45; ²Dβ, 1.35-1.56).Conclusions: The composition of the forest sampled was similar to other seasonal forests, while the density and diversity were among the lowest values.
| Main Authors: | , , , , , |
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| Format: | Texto biblioteca |
| Language: | eng |
| Subjects: | Heteroflorum scclerocarpum, Densidad de plantas, Bosques tropicales secos, Biomasa forestal, |
| Online Access: | https://doi.org/10.17129/botsci.3054 |
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| Summary: | Background: Heteroflorum (Fabaceae) is a monospecific genus endemic to western Mexico. Community attributes of the forest where H. sclero-carpum is found are scarcely known, as well as its similarity with other tropical seasonal forests.Question: What is the composition, structure, and diversity of the tropical deciduous forest where H. sclerocarpum is physiognomically dominant? Study site and date: The buffer area of the Zicuirán-Infiernillo Biosphere Reserve, in the Churumuco municipality of Michoacán, Mexico, in 2014. Methods: In three 0.1-ha sites, we sampled trees with a diameter at breast height ≥ 1 cm and lianas whose rooted stem had a diameter of ≥ 1 cm. We calculated the density, biomass, rank-abundance, rank-basal area curves, as well as alpha and beta diversity measures for each site.Results: We recorded 64 species from 21 families in 0.3 ha. Fabaceae had the highest number of genera, species, individuals, and biomass in all sites sampled. The sites varied in richness (33-41 species), density (176-247 individuals), basal area (2-2.9 m²), and maximum height of trees (12-16 m). Rank-abundance curves differed significantly among sites. Rarefaction curves showed that °Dα and ¹Dα did not differ among sites, while ²Dα separated one of the sites, which also showed a different diversity profile. Beta diversity did not show a strong species turnover among sites (°Dβ, 1.38-1.45; ²Dβ, 1.35-1.56).Conclusions: The composition of the forest sampled was similar to other seasonal forests, while the density and diversity were among the lowest values. |
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