Shading and species diversity act as safety nets for seedling survival and vitality of native trees in dryland forests: Implications for restoration

Damtew, Abebe; Birhane, Emiru; Messier, Christian; Paquette, Alain; Muys, Bart

doi:10.1016/j.foreco.2023.121559

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2024

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Cited by 2 publications

References 89 publications

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Forest management options in modulating trees’ survival, growth, and reproduction strategies under environmental stress

Bose,

Redmond,

Levesque

2024

Forest Ecology and Management

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Forest management options in modulating trees’ survival, growth, and reproduction strategies under environmental stress

Bose,

Redmond,

Levesque

2024

Forest Ecology and Management

View full text Add to dashboard Cite

Shading and selection effect-mediated species mixing enhance the growth of native trees in dry tropical forests

Awraris,

Birhane,

Messier

et al. 2024

Preprint

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Tropical dry forests remain vital to rural communities, but they often suffer from degradation and require restoration. In many cases, restoration involves planting monospecific plantations of robust exotic species; however, detailed ecological studies are required to understand how native species mixtures can become successful for restoration purposes. To address this knowledge gap, a tree diversity experiment (IDENT-Ethiopia) was conducted to examine the impact of species diversity and shading on the growth of nine native tree species in tropical dry forests. The experiment followed a block design with 270 plots, which included a gradient in native tree species richness (one-, two-, and four-species mixtures), as well as a functional diversity gradient with low, medium, and high levels. A shading treatment (shaded and unshaded) was also replicated in triplicate. The stem volume growth of seedlings was assessed one and two years after planting. The results revealed that seedling growth was significantly boosted by increased species richness and shading: stem volume growth increased by 10.1% in shaded environments and 15.4% in mixed plots. The study also demonstrated a positive diversity productivity relationship in 57% of all mixtures. Variance partitioning showed that this overyielding was a result of competitive dominance. In the shaded environment, these productive dominant species were Cordia Africana, followed by Dodonaea angustifolia and Dovyalis abyssinica, Overall, the findings suggest that shading and species mixing are crucial factors for promoting seedling growth of native dryland species and ensuring the successful restoration of drylands.

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Shading and species diversity act as safety nets for seedling survival and vitality of native trees in dryland forests: Implications for restoration

Cited by 2 publications

References 89 publications

Forest management options in modulating trees’ survival, growth, and reproduction strategies under environmental stress

Forest management options in modulating trees’ survival, growth, and reproduction strategies under environmental stress

Shading and selection effect-mediated species mixing enhance the growth of native trees in dry tropical forests

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