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Fire is a major ecological and evolutionary factor promoting biodiversity and maintaining functioning of naturally fire-prone ecosystems. In tropical savannas, plant communities show a set of fire-adapted traits and both flowering and pollination services have the potential to rapidly regenerate after fire, but fire-suppression policies may disrupt this adaptability following potential woody encroachment. Understanding the effects of fire on plant–pollinator interactions are required to advance conservation of biodiversity and ecosystem functioning. We evaluated the dynamics of plant community assemblage, flower availability, composition of flower functional traits associated with attractiveness to pollinators, and activity and diversity of insect pollinator guilds over ten post-fire stand ages along a 14-year chronosequence in a naturally burned region in the Cerrado, a megadiverse savanna in Brazil. We expect to find a high resilience of plant-pollinator communities and a steady decline in the successional recovery as time-since-fire proceeds. Along the post-fire chronosequence, vegetation was dominated by subshrubs with tubular, white, and nectar flowers arranged in inflorescences, while bees were the predominant pollinators. Plant assemblage and flower number showed an initial significant increase but monotonically declined after 7–9 years after fire. Accordingly, pollinator richness and abundance significantly reached highest peaks in interim periods and a steady decline over time. In contrast, the frequency of community-wide plant-life form, flower functional traits, and pollinator diversity remained unaltered over the post-fire chronosequence. We added compelling evidence of a high post-fire resilience of plant-pollinator communities and further understanding of how fire-suppression policies may affect pollination in the Cerrado. [ABSTRACT FROM AUTHOR]

The correction notice in the journal Oecologia addresses an error in the funding information section of an article on post-fire temporal dynamics of plant-pollinator communities in a tropical savanna. The corrected funding statement includes additional grant numbers for GJB. The authors of the original article are Alberto L. Teixido, Camila S. Souza, Gudryan J. Barônio, Maria R. Sigrist, Josué Raizer, and Camila Aoki. [Extracted from the article]

Hymenoptera are the third largest insect order and is one of the most important ecological agents in terrestrial ecosystems, while terrestrial flooded areas are considered priority for conservation due to their uniqueness. We present the first inventory for bees (Apoidea) and wasps (Vespoidea) and describe their alpha, beta, and gamma diversity s in the Brazilian Pantanal to evaluate the effect of the flood intensity on the community structure. We tested the hypothesis that areas with different profiles would present less similar composition, for this, sampling was carried out in the Brazilian Pantanal between November 2015 and March 2016 using passive traps and active search with entomological net in 19 areas distributed in five flood categories. Ecological metrics were used to describe the community, as well as multivariate analyzes for community interpretation. We collected 3342 individuals belonging to 377 species and eight families and expected 532 (± 23) species of Apoidea and Vespoidea. Different areas presented low similarity and the compositions of the communities tended to be different, mainly between the extremes of the flood profile for different families. The biological characteristics of representatives from the highest taxonomic levels (Subfamily, Tribe) are important for occupation of the areas in the Pantanal. Describing the fauna and understanding how it is influenced by flooding history provides tools for conservation strategies in the Pantanal and further effort is needed to preserve distinct areas within the biome. [ABSTRACT FROM AUTHOR]