Compositional changes in bee and wasp communities along Neotropical mountain altitudinal gradient.
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2017
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Climate conditions tend to differ along an altitudinal gradient, resulting in some species
groups' patterns of lower species richness with increasing altitude. While this pattern is well
understood for tropical mountains, studies investigating possible determinants of variation
in beta-diversity at its different altitudes are scarce. We sampled bee and wasp communities
(Hymenoptera: Aculeata) along an altitudinal gradient (1,000±2,000 m.a.s.l.) in a tropical
mountainous region of Brazil. Trap nests and Moericke traps were established at six sampling
points, with 200 m difference in altitude between each point. We obtained average climate
data (1970±2000) from Worldclim v2 for altitudes at each sampling site. Nest traps
captured 17 bee and wasp species from six families, and Moericke traps captured 124 morphospecies
from 13 families. We found a negative correlation between altitude and species
richness and abundance. Temperature, precipitation, water vapor pressure, and wind
speed influenced species richness and abundance, and were correlated with altitude. β-
diversity was primarily determined by species turnover as opposed to nestedness, and Aculeate
community similarity was higher for more similar altitudinal ranges. Moericke traps
seem to be more efficient for altitudinal surveys compared to nest traps. We found high
occurrence of singleton and doubleton species at all altitudes, highlighting the need for longterm
studies to efficiently assess hymenopteran diversity in these environments.
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PERILLO, L. N. et al. Compositional changes in bee and wasp communities along Neotropical mountain altitudinal gradient. PLoS One, v. 12, p. 1-14, 2017. Disponível em: <http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0182054>. Acesso em: 25 ago. 2017.