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Homogenization and impoverishment of taxonomic and functional diversity of ants in Eucalyptus plantations
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Homogenization and impoverishment of taxonomic and functional diversity of ants in Eucalyptus plantations
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Journal Article
Homogenization and impoverishment of taxonomic and functional diversity of ants in Eucalyptus plantations
2018
Overview
Despite its negative impacts on the environment and biodiversity, tree plantations can contribute to biodiversity conservation in fragmented landscapes, as they harbor many native species. In this study, we investigated the impact of
Eucalyptus
plantations on the taxonomic and functional diversity of ant communities, comparing ant communities sampled in managed and unmanaged (abandoned for 28 years)
Eucalyptus
plantations, and native Atlantic rain forests.
Eucalyptus
plantations, both managed and unmanaged, reduced the functional diversity and increased the similarity between ant communities leading to functional homogenization. While communities in managed plantations had the lowest values of both taxonomic and functional ant diversities, ant communities from unmanaged plantations had similar values of species richness, functional redundancy and Rao’s Q compared to ant communities from forest patches (although functional richness was lower). In addition, communities in unmanaged
Eucalyptus
plantations were taxonomically and functionally more similar to communities located in managed plantations, indicating that
Eucalyptus
plantations have a severe long-term impact on ant communities. These results indicate that natural regeneration may mitigate the impact of
Eucalyptus
management, particularly regarding the functional structure of the community (α diversity), although it does not attenuate the effects of long term homogenization in community composition (β diversity).
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
