Responses of functional traits in cavity-nesting birds to logging in subtropical and temperate forests of the Americas

Schaaf, Alejandro Alberto; Gomez, Daniel Osvaldo; Tallei, Ever; Vivanco, Constanza Guadalupe; Ruggera, Román A.

doi:10.1038/s41598-021-03756-0

Cited by 4 publications

(2 citation statements)

References 56 publications

(108 reference statements)

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“…Environmental factors act as selective forces that eliminate species that cannot tolerate the conditions at a particular site [22]. Hence, in addition to taxonomic modifications (such as variations in species richness, abundance, and composition), biomes also exhibit functional changes owing to alterations in landscape patterns [5,23]. However, numerous studies have demonstrated that the pattern of changes in functional diversity may differ from that of taxonomic diversity [6,24].…”

Section: Introductionmentioning

confidence: 99%

Effects of Land Cover on the Taxonomic and Functional Diversity of the Bird Communities on an Urban Subtropical Mountain

Zhang,

Zhao,

Yang

et al. 2024

Diversity

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Mountain ecosystems are crucial for global biodiversity conservation. However, their landscape features are constantly changing owing to urban expansion. Understanding the relationships between biotic communities and landscape features is essential for biodiversity conservation. This study aimed to examine the effect of land cover type on avian communities in Lishui, a mountainous urban area in eastern China. Avian surveys were conducted using 168 line transects in total across different land cover types once per season from December 2019 to January 2021. We assessed the diversity of bird communities by calculating various metrics at both taxonomic and functional levels. Among the land cover types measured, woodland, built-up land, cultivated land, and water bodies significantly influenced bird community diversity and composition. Species richness, species abundance, and functional richness were negatively correlated with the proportion of woodland but were positively correlated with the proportion of non-natural land cover, such as built-up and cultivated land. In contrast, functional evenness was positively correlated with the proportion of woodland and grassland but negatively correlated with the proportion of non-natural land cover. Land cover type also exhibited significant correlations with avian functional characteristics such as diet, foraging strata, and body mass, thereby influencing the overall community structure. Our results indicated that mountainous landscape patterns substantially affect avian communities. Different land cover types possess varying resource endowments that affect the distribution of avian species. Therefore, urban landscape planning in mountainous areas should carefully consider the various functions provided to organisms by different types of land cover to promote biodiversity.

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Section: Introductionmentioning

confidence: 99%

Effects of Land Cover on the Taxonomic and Functional Diversity of the Bird Communities on an Urban Subtropical Mountain

Zhang,

Zhao,

Yang

et al. 2024

Diversity

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“…In general, describing, mapping, predicting, and understanding the distribution of traits relies on aggregated indices at the community or plot level. Traits can be any physiological or morphological property of an individual (Violle et al, 2007), such as body mass for animals (Schaaf et al, 2021) or leaf area or height for plants (Cornelissen et al, 2003; de Bello et al, 2013). Interestingly, while they are referred to as community‐level indices, they can be calculated at any given scale of interest, for example for sampling plots or even at coarser scale (e.g.…”

Section: Introductionmentioning

confidence: 99%

Predict first–assemble later versus assemble first–predict later: Revisiting the dilemma for functional biogeography

Deschamps,

Poggiato,

Brun

et al. 2023

Methods Ecol Evol

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Predicting community‐level trait indices, such as community‐weighted mean or functional dispersion, in space or time, is crucial, as they are markers of ecosystem functions, proxies for ecosystem services, and are now integral part of conservation planning. On one hand, since members of a species share similar traits, a natural way is to model species distributions as a function of the environment first (i.e. with species distribution models), and then to reconstruct trait indices for any locality of interest (predict‐first). On the other hand, community‐level trait indices can be seen as the direct result of environmental filtering, and thus their distributions may directly be modelled in response to the environment (assemble‐first). Although relatively different, these two approaches have been used interchangeably in trait‐based ecology with unknown consequences on their usability. Here, using plant community (4463 plots) and trait data (LNC, leaf nitrogen content; PLH, plant height; SLA, specific leaf area, for >800 species) covering the French Alps, we compared the two approaches to predict community mean and functional dispersion indices, accounting or not for abundance (CM, community mean; CWM, community weighted mean; FDis, functional dispersion; uFDis, unweighted functional dispersion). We tested both interpolation versus extrapolation capabilities of the two approaches. To support the empirical findings, we also run the same comparative analysis on simulated community data. While both approaches produced similar and skillful CM/CWM predictions (R2 > 0.63 for CWM PLH) for interpolation, the assemble‐first outperformed the predict‐first approach for extrapolation to unobserved environmental conditions (R2 = 0.60 against 0.54 for CWM PLH). Functional dispersion was generally less well predicted, although the assemble‐first approach again provided better predictions for both interpolation (R2 = 0.31 against 0.27 for FDis PLH) and extrapolation (R2 = 0.28 against 0.18 for FDis PLH). The predict‐first approach systematically overestimated FDis. Results were confirmed by the simulation experiments. We conclude that the direct modelling of community‐level indices provides more robust spatial predictions over space and time and should thus be preferred. This approach also does not suffer from having generally too many species predicted by the predict‐first approach.

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Reduced vegetation integrity in selectively logged Atlantic rainforest affects bird diversity: Higher taxonomic and functional diversity, but increased niche overlap

Oliveira

Anjos

2023

Journal for Nature Conservation

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Responses of functional traits in cavity-nesting birds to logging in subtropical and temperate forests of the Americas

Cited by 4 publications

References 56 publications

Effects of Land Cover on the Taxonomic and Functional Diversity of the Bird Communities on an Urban Subtropical Mountain

Effects of Land Cover on the Taxonomic and Functional Diversity of the Bird Communities on an Urban Subtropical Mountain

Predict first–assemble later versus assemble first–predict later: Revisiting the dilemma for functional biogeography

Reduced vegetation integrity in selectively logged Atlantic rainforest affects bird diversity: Higher taxonomic and functional diversity, but increased niche overlap

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