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Deforestation alters species interactions

Howes, B., González-Suárez, M. ORCID: https://orcid.org/0000-0001-5069-8900, Jensen, H. J., dos Anjos, L., Develey, P. F., Hatfield, J. H., Morante-Filho, J. C., Uezu, A. and Banks-Leite, C. (2023) Deforestation alters species interactions. Natural Sciences, 3 (2). e20220027. ISSN 2698-6248

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To link to this item DOI: 10.1002/ntls.20220027

Abstract/Summary

Interspecific interactions are a major determinant of stability in ecological communities, and are known to vary with biotic and abiotic conditions. Deforestation is the primary driver of the ongoing sixth mass extinction, yet its effect on species interactions remains largely unexplored. We investigate how deforestation affects species interactions using a complex systems model and a co-occurrence dataset of 363 bird species, observed across 134 sites, from five regions across the Brazilian Atlantic Forest totalling 27,226 interactions. Both theoretical and empirical results show that interspecific interactions vary non-monotonically with forest cover, and are more positive than average in areas with higher forest cover, and to a lesser extent in highly deforested areas. Observed differences in interactions reflect both species turnover and changes in pairwise interactions. Our results point to changes in stability across the gradient of deforestation that may lead to varying community resilience to environmental perturbations.

Item Type:Article
Refereed:Yes
Divisions:Life Sciences > School of Biological Sciences > Ecology and Evolutionary Biology
ID Code:110791
Publisher:Wiley

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