Species turnover drives β-diversity patterns across multiple spatial scales of plant-galling interactions in mountaintop grasslands

PloS One
Marcel Serra CoelhoG Wilson Fernandes

Abstract

This study describes differences in species richness and composition of the assemblages of galling insects and their host plants at different spatial scales. Sampling was conducted along altitudinal gradients composed of campos rupestres and campos de altitude of two mountain complexes in southeastern Brazil: Espinhaço Range and Mantiqueira Range. The following hypotheses were tested: i) local and regional richness of host plants and galling insects are positively correlated; ii) beta diversity is the most important component of regional diversity of host plants and galling insects; and iii) Turnover is the main mechanism driving beta diversity of both host plants and galling insects. Local richness of galling insects and host plants increased with increasing regional richness of species, suggesting a pattern of unsaturated communities. The additive partition of regional richness (γ) into local and beta components shows that local richnesses (α) of species of galling insects and host plants are low relative to regional richness; the beta (β) component incorporates most of the regional richness. The multi-scale analysis of additive partitioning showed similar patterns for galling insects and host plants with the local component ...Continue Reading

References

Nov 15, 2000·Proceedings of the National Academy of Sciences of the United States of America·T Nyman, R Julkunen-Tiitto
Aug 13, 2005·Biological Reviews of the Cambridge Philosophical Society·Ian D Hodkinson
Aug 3, 2010·Neotropical Entomology·Enrique MedianeroJosé L Nieves-Aldrey
May 3, 2014·Brazilian Journal of Biology = Revista Brasleira De Biologia·F M ResendeM S Coelho
Jul 1, 1988·Oecologia·G Wilson Fernandes, Peter W Price

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