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Artificial perches for birds in deforested areas favour a seed rain similar to woodland remnants

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Abstract

The lack of seeds represents one of the highest difficulties to overcome for the ecological restoration of areas that have been deforested. This study evaluates the effectiveness of artificial perches in increasing the abundance and species richness of bird-dispersed seeds and the similarity of seed rain composition of deforested areas with and without artificial perches in relation to woodland remnants that serve as seeds source. We also tested for differences in seed abundance and species richness with different origins (native or non-native) as well as different type of habits (woody and non-woody). The experiment took place in two sites of the Espinal ecoregion, Argentina. We found that in deforested areas, perches increased seed abundance and species richness in the seed rain in comparison with deforested areas without artificial perches. The species composition under artificial perches was similar to the seed rain dispersed in the woodland. However, there was a decrease in the abundance and richness of native species under artificial perches, probably due to behavioral differences between opportunistic and obligate frugivorous. Seed of trees and shrubs species that can act as natural perches and nurses were well represented in the seed rain under artificial perches. We recommend using artificial perches in deforested areas with potential for recovery because it is an efficient technique to promote the entry of birds and increase seed rain, preserving features of the original environment. In places where native and non-native species show different fructification peaks, artificial perches could be used in certain periods of the year.

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Data availability

All the data are available in appendix of supplementary information.

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Acknowledgements

The permit for field research was granted by Dirección General de Recursos Naturales Entre Ríos (DGRN), in Authorization N°. 003/15 (File N°. 1.733.195). We thank director Alfredo Berduc from Parque General San Martín, and Valeria Tiropolis, Viviana Fussi and Alba Flores from Reserva de Uso Múltiple Escuela J.B. Alberdi. Special thanks to Rubén G. who assisted us for perches construction and during field work. We also thank Claudia Alzugaray, Cesar Massi, Geraldina Richard and Berenice Schneider for helping in some seed species identification. We thank Romina Vidal-Russell for English revision of the manuscript.

Funding

For this work Brenda Guidetti received financial support provided by the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; the Instituto Nacional Tecnología Agropecuaria (INTA), Argentina and Idea Wild Foundation. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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Authors and Affiliations

  1. Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Instituto de Ecología, Genética y Evolución de Buenos Aires (Consejo Nacional de Investigaciones Científicas y Técnicas), Buenos Aires, Argentina

    Brenda Yamile Guidetti

  2. Instituto Nacional Tecnología Agropecuaria (INTA), EEA Paraná, Paraná, Argentina

    Sebastian Dardanelli

  3. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción (CICyTTP-CONICET), Diamante, Argentina

    Sebastian Dardanelli

  4. Facultad de Ciencia y Tecnología, Universidad Autónoma de Entre Ríos, Paraná, Argentina

    Fátima María Lucrecia Miño

  5. Instituto de Investigaciones en Biodiversidad y Medioambiente (Consejo Nacional de Investigaciones Científicas y Técnicas), Bariloche, Argentina

    Guillermo César Amico

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  1. Brenda Yamile Guidetti
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  4. Guillermo César Amico
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Contributions

BYG, SD and GCA contributed in manuscript conceptualization and experiment methodology, BYG and FMLM did the field work and data curation, BYG performed the formal analysis, validation, data visualization, writing and original draft preparation, SD and GCA worked on the project administration, the supervision, review and editing. All authors read and approved the final manuscript.

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Correspondence to Brenda Yamile Guidetti.

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Guidetti, B.Y., Dardanelli, S., Miño, F.M.L. et al. Artificial perches for birds in deforested areas favour a seed rain similar to woodland remnants. Plant Ecol 223, 1261–1274 (2022). https://doi.org/10.1007/s11258-022-01272-3

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