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Contribution of Avian Frugivores to Seed Dispersal in a Tropical Woodland Savanna.
  • +2
  • John Onah,
  • Adams Chaskda,
  • Soladoye Iwajomo,
  • Talatu Tende,
  • Iveren Abiem
John Onah
A. P. Leventis Ornithological Research Institute, University of Jos, Jos-Eas, Plateau State, Nigeria

Corresponding Author:onahabojejohn@gmail.com

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Adams Chaskda
A. P. Leventis Ornithological Research Institute, University of Jos, Jos-East, Plateau State, Nigeria.
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Soladoye Iwajomo
University of Lagos Faculty of Science
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Talatu Tende
A.P. Leventis Ornithological Research Institute
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Iveren Abiem
University of Jos
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Abstract

Seed dispersal is fundamental to the resilience of plant communities and birds are important seed dispersers, contributing to the maintenance and restoration of plant community structures. In this study, we investigated the contributions of bird species to seed dispersal in a woodland savanna in Jos, Nigeria. In the dry season of 2022, we observed birds consuming fruits on 104 individual plants belonging to 26 species. Five hundred and six (506) birds belonging to 19 species and 12 families were observed consuming fruits from the focal plants. Bird trapping was conducted to collect intact seeds from bird fecal samples to examine the relationship between bird traits and the quantity of seed dispersal. And the results showed that gape width and body mass were significantly correlated with increase in the quantity of dispersed seeds. Three bird species, the Common bulbul (Pycnonotus barbatus), the Speckled Mouse-bird (Colius striatus) and the African thrush (Turdus pelios) showed stronger interactions with plants within the network which could suggest that these species are critical for maintaining the richness and diversity of the seed rain of this woodland savanna ecosystem. Seed dispersal by these birds could be significant for the regeneration of degraded areas. This study highlights the need to conserve the role of these key species in shaping ecological networks and the importance of protecting frugivorous bird populations, particularly larger birds to maintain the integrity of the plant community and the broader ecosystem.
21 Oct 2024Submitted to Ecology and Evolution
28 Nov 2024Submission Checks Completed
28 Nov 2024Assigned to Editor
04 Dec 2024Reviewer(s) Assigned
08 Jan 2025Review(s) Completed, Editorial Evaluation Pending