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Bird feet morphology drives the dispersal of rotifers and microcrustaceans in a Neotropical temporary pond

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Abstract

The present study aimed to determine zooplankton diversity and composition through a laboratory simulation of dispersal by morphologically different birds’ feet (large, small and webbed anisodactylous feet) and by comparing them between different water accumulation phases. We hypothesized that large anisodactylous birds, because of their larger size, can disperse a higher number of species. A laboratory experiment with zooplankton dispersal simulation by birds’ feet was carried out, using dry sediments collected at different past phases of water accumulation in a temporary pond, which represent the flood (upper egg bank) and drought (lower egg bank), intending to evaluate differences in species richness between these phases. The lower egg bank showed higher species richness (42 species) while the samples from upper egg banks presented almost the same number of species (35 or 36 at each one). The number of eggs carried on each footprint model (treatment) was different, and it was higher for large anisodactyl feet with 46 species, supporting the hypothesis of the study. Furthermore, the species compositions carried by footprint models were different from one other. In addition, some species were specific from each footprint model. We conclude that birds can disperse a large number of dormant zooplankton, acting in the dissemination of local species.

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Acknowledgements

We thank the Academic Unity of Serra Talhada (UFRPE, Brazil) for logistic support in implementing this study, and would also like to express our gratitude to Professor Ricardo Lourenço Pinto, of the University of Brasilia (Brazil) and to Professor Sigrid Neumann Leitão, of the Federal University of Pernambuco (Brazil), for helping in Ostracoda and Rotifera identification, respectively. We also thank to CAPES and CNPq, for the financial support to the first and second authors. This project was supported by the Foundation for Science and Technology of the State of Pernambuco-FACEPE (#APQ-0664-2.05/10).

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Correspondence to Leidiane Pereira Diniz.

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de Morais Junior, C.S., Diniz, L.P., Sousa, F.D.R. et al. Bird feet morphology drives the dispersal of rotifers and microcrustaceans in a Neotropical temporary pond. Aquat Sci 81, 69 (2019). https://doi.org/10.1007/s00027-019-0666-8

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  • DOI: https://doi.org/10.1007/s00027-019-0666-8

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