Data on terrestrial ferns species richness, abundance, and functional traits in Mashpi Rainforest Biodiversity Reserve in the Ecuadorian Chocó

Salazar, Laura; Peña, Paola; Segura, Renato; Roldán, Mateo

doi:10.1016/j.dib.2022.108784

Cited by 1 publication

(4 citation statements)

References 6 publications

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“…In addition, the uniform and fast growth rates of monocultures in silviculture systems may increase competition among plants for nutrients and water absorption (Zhang et al., 2023), while decreasing competition for sunlight due to the high degree of canopy openness (Dani et al., 2021). This supports the observed effect of leaf division, which is an important trait in silviculture systems (Kessler et al., 2007; Salazar et al., 2023), as it reduces the pressure caused by high luminosity (Dani et al., 2021; Jin et al., 2021), in line with the mass ratio theory (Finegan et al. 2005; Castro‐Díez et al., 2016).…”

Section: Discussionsupporting

confidence: 75%

“…This supports the observed effect of leaf division, which is an important trait in silviculture systems (Kessler et al, 2007;Salazar et al, 2023), as it reduces the pressure caused by high luminosity (Dani et al, 2021;Jin et al, 2021), in line with the mass ratio theory (Finegan et al 2005;Castro-Díez et al, 2016). Furthermore, the spacing between monoculture plants and the management practices in silviculture systems may suppress the understory, leaving open systems that justify the importance of the sori shape trait for dispersal in these conditions (Dani et al, 2021;Jin et al, 2021;Salazar et al, 2023).…”

Section: Plant Traits Vs Propertiessupporting

confidence: 76%

“…2005; Castro‐Díez et al., 2016). Furthermore, the spacing between monoculture plants and the management practices in silviculture systems may suppress the understory, leaving open systems that justify the importance of the sori shape trait for dispersal in these conditions (Dani et al., 2021; Jin et al., 2021; Salazar et al., 2023).…”

Section: Discussionmentioning

confidence: 99%

“…The leaf and sori shape traits (by identity of the community = CWMs) were found to be highly important in silviculture systems due to their impact on plant interactions (Dani et al., 2021; Jin et al., 2021; Salazar et al., 2023). For instance, Pinus elliottii may exhibit a high concentration of secondary compounds that can promote allelopathic processes (Ferreira et al., 2019), which, combined with the increased exposure to light (Hogan et al., 2022), may explain why leaf and sori shape traits are particularly important in silviculture systems (Jin et al., 2021; Kessler et al., 2007).…”

Section: Discussionmentioning

confidence: 99%

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Time will tell: Taxonomic and functional diversity of monilophyte ferns in native forests and abandoned silviculture systems

Martinelli,

de Souza Rezende

2023

Austral Ecology

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Different forest systems can influence the function, traits, diversity, and distribution of ferns. By comparing ferns based on their functional traits, we can explore how species loss affects functional diversity, and consequently alter the forest ecosystem. We investigated the impact of abandoned silviculture on fern diversity (taxonomic and functional) and abundance. Our hypothesis suggests a positive effect of nutrients and soil humidity in native forests, while canopy openness in silviculture has a negative effect on monilophyte diversity. This study was conducted in three sites of native forest and three sites of Pinus silviculture. Each site was subdivided into three areas, with three plots per area, resulting in 54 plots (3 sites × 3 areas × 3 plots × 2 forest types). Each plot covered an area of 100 m2 (10 m × 10 m; 5400 m2 in total). In each plot, we estimated abundance, functional attributes (richness, evenness, divergence, and dispersion) based on leaf thickness, leaf width, petiole length, stem length, leaf division, sori shape, indusium presence, and taxonomic diversity. Results indicate that native forest exhibit higher taxonomic and functional diversity (richness—Fric) compared to abandoned Pinus plantations, which may be attributed to high habitat diversity and species specialization in specific microhabitats. In silviculture, diversity homogenization leads to an increase in the redundancy of functional attributes (evenness—Feve), resulting in the filtering out of similar organisms. Abiotic factors such as light and canopy openness negatively influence plant establishment and growth, leading to a decrease in leaf division and indusium presence/absence (by CWMs), supporting niche complementarity theory in natural forest and mass ratio theory in silviculture. Our findings highlight the enduring negative impact of silviculture, even after 20 years, on both the taxonomic and functional diversity of monilophytes, underscoring the crucial role of native forests in preserving fern diversity.

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