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From the Atlantic Forest to the borders of Amazonia: species richness, distribution, and host association of ectoparasitic flies (Diptera: Nycteribiidae and Streblidae) in northeastern Brazil

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Abstract

Better knowledge of the geographical distribution of parasites and their hosts can contribute to clarifying aspects of host specificity, as well as on the interactions among hosts, parasites, and the environment in which both exist. Ectoparasitic flies of the Nycteribiidae and Streblidae families are highly specialized hematophagous parasites of bats, whose distributional patterns, species richness, and associations with hosts remain underexplored and poorly known in Brazil. Here, we used information available in the literature and unpublished data to verify if the occurrence of bat hosts in a given environment influences the occurrence and distribution of nycteribiid and streblid flies in different ecoregions in the northeastern Brazil. We evaluate species richness and similarity between ecoregions and tested correlations between species richness and the number of studies in each ecoregion and federative unit. We recorded 50 species and 15 genera of bat ectoparasitic flies on 36 species and 27 genera of bat hosts. The Atlantic Forest had the highest fly species richness (n = 31; 62%), followed by Caatinga (n = 27; 54%). We detected the formation of distinct groups, with low species overlap between ecoregions for both flies and bats. Fly species richness was correlated with host species richness and with the number of studies in each federative unit, but not with the number of studies by ecoregion. Due to the formation of distinct groups with low species overlap for both groups, host availability is likely to be one of the factors that most influence the occurrence of highly specific flies. We also discuss host specificity for some species, produced an updated list of species and distribution for both nycteribiid and streblid flies with information on interaction networks, and conclude by presenting recommendations for more effective inventories of bat ectoparasites in the future.

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Acknowledgements

We thank all the staff of the Laboratório de Ciência Aplicada à Conservação da Biodiversidade, especially A. Jardelino, É. Figueiredo, F. Hintze, Í. Azevedo, and J. Torres for support during fieldwork. Thanks to M. Delgado-Jaramillo for help with Fig. 1, M. Barros for donating fly specimens, and P. Vasconcelos for providing information on the study areas and flies collected in the north of Minas Gerais. We also thank PELD Catimbau for logistical support. M. Mello provided tutorials on interaction networks, available in the Ecological Synthesis Lab (www.marcomello.org). This manuscript is based on E. Barbier’s Thesis to receive his Doctorate in “Biologia Animal” (Zoology) at PPGBA/CB/UFPE. We are grateful to A. Maia, L. Iannuzzi, S. Vasconcelos, and two anonymous reviewers for their constructive comments in an earlier version of the manuscript. We also thank Coordenação de Aperfeiçoamento de Pessoal de Nível Superior–CAPES and Conselho Nacional de Desenvolvimento Científico e Tecnológico–CNPq for the grants to the first and second authors, respectively.

Funding

This study was funded by Grupo Boticário de Proteção à Natureza (grant number 0983-20132) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (grant number 552006/2011-4, CNPq/ICMBio 13/2011–Project “Rede de pesquisas e conservação de pequenos mamíferos em áreas protegidas da Caatinga”).

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Correspondence to Eder Barbier.

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The authors declare that they have no conflict of interest.

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Fieldwork was authorized by MMA/IBAMA/ICMBio (permits #33353-1, #33353-2, #43816-1, and #43816-2) and Ethics Committee on Animal Care-UFPE (permit #23076.027916/2015-13).

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Section Editor: Boris R. Krasnov

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Barbier, E., Bernard, E. From the Atlantic Forest to the borders of Amazonia: species richness, distribution, and host association of ectoparasitic flies (Diptera: Nycteribiidae and Streblidae) in northeastern Brazil. Parasitol Res 116, 3043–3055 (2017). https://doi.org/10.1007/s00436-017-5615-7

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  • DOI: https://doi.org/10.1007/s00436-017-5615-7

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