Effects of nitrogen and phosphorus availability on the early growth of two congeneric pairs of savanna and forest species

Paganeli, Bruno; Batalha, Marco Antônio

doi:10.1590/1519-6984.235573

Cited by 4 publications

(1 citation statement)

References 56 publications

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“…Functional attributes that promote efficient growth are usually the same that increase invasion success (Lamarque et al, 2011). Indeed, in forest environments, taller trees with small but nitrogen‐rich leaves allow a high metabolic efficiency by sustaining high photosynthetic rates and low water loss (Paganeli & Batalha, 2021; Paganeli et al, 2020). These nitrogen‐rich leaves may be connected to the mycorrhizal association (Gorzelak et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Dark diversity at home describes the success of cross‐continent tree invasions

Paganeli

Toussaint

Bueno

et al. 2022

Diversity and Distributions

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Aim Non‐native species threaten ecosystems worldwide, but we poorly know why some species invade more. Functional traits, residence time and native range size have been often used as invasion predictors. Here, we advance in the field by linking invasion success to native range parameters derived from dark diversity – a set of species present in the surrounding region that are absent in a study location even if ecological conditions are suitable. We tested whether those parameters improve the description of species success outside their native range. Location North America; Europe and Mediterranean Basin. Methods For 170 tree species native in one and non‐native in another region, we defined their invasion success as the number of locations occupied at the non‐native range. The probabilistic dark diversity was estimated based on the species co‐occurrences in their native ranges. It specifies how suitable is a species for a location, even if the species is absent. We calculated two parameters: sum of native location suitabilities (niche breadth proxy) and dark diversity probability (how often a species is absent from suitable locations, indicating niche realization limitations). We explored whether models including the dark diversity parameters performed better than one with a common species range measure, the number of locations occupied. We accomplished our models by adding functional traits, residence time and invasion direction. Results Invasion success increased with the sum of native location suitabilities and decreased with dark diversity probability. This model with dark diversity parameters outperformed an alternative using the number of native locations occupied. Our best model included invasion direction, functional traits (including mycorrhizal status) and residence time, but dark diversity parameters remained important predictors. Main conclusions The dark diversity parameters can contribute to invasion ecology by linking the species performance in the non‐native range to its niches parameters, derived from the native range.

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Section: Discussionmentioning

confidence: 99%

Dark diversity at home describes the success of cross‐continent tree invasions

Paganeli

Toussaint

Bueno

et al. 2022

Diversity and Distributions

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Determinação do potencial de contaminação de aquíferos no município de Artur Nogueira (São Paulo, Brasil), por meio de atributos geoambientais

Ruggiero¹,

Bentos²,

Paganeli

et al. 2022

Cuad. Geogr. Rev. Colomb. Geogr.

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As atividades antrópicas exercem constante pressão sobre os recursos hídricos subterrâneos, e a inserção de contaminantes no ambiente é um dos principais problemas relacionados ao uso do solo. Analisar a resposta de fatores geoambientais ao uso e a ocupação do solo é essencial para identificar as regiões com maior ou menor potencial de contaminação de aquíferos, o que contribui diretamente com ações de planejamento territorial. O objetivo desde estudo é determinar o potencial de contaminação de aquíferos no município de Artur Nogueira (São Paulo, Brasil). Para este fim, foram utilizados atributos relacionados à geologia e geomorfologia da área de estudo (unidades aquíferas, materiais inconsolidados e declividade), juntamente com o uso e ocupação do solo, os quais foram classificados entre muito baixo e muito alto potencial de contaminação, por meio de uma análise multicritério e álgebra de mapas. Aproximadamente 47 % da área do município apresenta um potencial de contaminação médio, seguido pelo alto, que ocupa cerca do 24 % da região. A presença de uma grande matriz agropecuária no município contribuiu fortemente com este resultado, juntamente com as características do meio físico, indicando que a falta de planejamento relacionado ao uso e ocupação do solo de uma região influência de forma direta o potencial de contaminação dos recursos hídricos subterrâneos.

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Intraspecific variation in fine-root traits is larger than in aboveground traits in European herbaceous species regardless of drought

Rodríguez-Alarcón,

Tamme,

Carmona

2024

Front. Plant Sci.

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Differences within species (Intraspecific trait variation - ITV) contribute substantially to overall trait variability and environmental harshness can reduce among-species variation. While aboveground traits have received considerable attention, knowledge about ITV in fine-root traits and how it differs from ITV in aboveground traits remains limited. This study examined the partitioning of trait variation aboveground and fine-root traits in 52 European herbaceous species and how such proportions change in response to drought, offering valuable insights for accurate functional species characterization and inter-species comparisons. We studied seven morphological aboveground and fine-root traits under drought and well-watered conditions in a greenhouse experiment. Linear mixed effect models and permutational multivariate analysis of variance (PERMANOVA) were employed to decompose trait variation, ensuring the robustness of our results. We also calculated variance partitioning for the combination of aboveground traits and the combination of fine-root traits, as well as pairs of analogous leaf and fine-root traits (i.e., traits that fulfill similar functions) for each treatment (control and drought). Among-species trait differences explained a greater proportion of overall variance than within-species variation, except for root dry matter content (RDMC). Height and leaf area stood out, with species’ identity accounting for 87-90% of total trait variation. Drought had no significant effect on the proportions of variation in any of the traits. However, the combination of fine-root traits exhibited higher intraspecific variability (44-44%) than aboveground traits (19-21%) under both drought and control. Analogous root traits also showed higher ITV (51-50%) than analogous leaf traits (27-31%). Our findings highlight substantial within-species variation and the nuanced responses of fine-root traits, particularly RDMC, suggesting root traits’ flexibility to soil heterogeneity that fosters less differentiation among species. Among-species trait differences, especially aboveground, may underscore distinct strategies and competitive abilities for resource acquisition and utilization. This study contributes to elucidate the mechanisms underlying the multifunctionality of the above- and belowground plants compartments.

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Effects of nitrogen and phosphorus availability on the early growth of two congeneric pairs of savanna and forest species

Cited by 4 publications

References 56 publications

Dark diversity at home describes the success of cross‐continent tree invasions

Dark diversity at home describes the success of cross‐continent tree invasions

Determinação do potencial de contaminação de aquíferos no município de Artur Nogueira (São Paulo, Brasil), por meio de atributos geoambientais

Intraspecific variation in fine-root traits is larger than in aboveground traits in European herbaceous species regardless of drought

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