Rainfall, temperature, and vegetation type influence nesting by the oil-collecting bee Centris (Hemisiella) tarsata in Brazilian restinga
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Solitary bees are the main pollinators of native plant species and crops, therefore, understanding how they respond to the environment is essential to maintain ecosystem function and services. Here, we assessed how climatic conditions and vegetation type influence Centris tarsata nesting in Brazilian restinga. Evaluations were conducted using trap-nests placed in open areas, shrubby and secondary vegetations, and at understory and canopy in open areas and secondary vegetations. Overall, nesting was higher during the dry season, mostly in open areas at a height of 1.5 m. However, in shrubby and secondary vegetations, nesting seems to be favored by a specific rainfall and temperature range. Furthermore, the amount of brood cells, total number of adults, and nest length were higher in open areas compared to shrubby and secondary vegetations. Therefore, our results show that rainfall, temperature, and vegetation structure are determining factors in C. tarsata nesting in the Brazilian restinga.
Keywordstrap-nests cavity-nesting bees pollinators climate conditions Malpighiaceae
We are thankful to Dr. Felipe Vivallo from Museu Nacional do Rio de Janeiro for the collaboration in the identification of C. tarsata. We also thank both reviewers for helpful comments and suggestions, and to the Coordenação de Aperfeiçoamento de Pessoal (CAPES) for granting the scholarship for the first author and to Embrapa Tabuleiros Costeiros for permission to assess the study area and for providing logistical support.
DMC and AVT conceived this research and designed experiments; MCB participated in the design, analysis, and interpretation of the data; ASB participated in the design; IB performed analysis and interpretation of the data. All authors read and approved the final manuscript.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
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