Phenotypic plasticity and ecophysiological strategies in a tropical dry forest chronosequence: A study case with Poincianella pyramidalis

Falcão, Hiram Marinho; Medeiros, Camila Dias; Silva, Bárbara L.R.; Sampaio, Everardo V. S. B.; Almeida-Cortez, Jarcilene S.; Santos, Mariana

doi:10.1016/j.foreco.2014.12.029

Cited by 39 publications

(37 citation statements)

References 57 publications

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“…In the MWF, a high LMA was associated with higher m , as expected given ist representing the more shade‐tolerant species in the understorey, which tend to have higher mortality (Kobe & Coates, ; Lusk et al., ). Conversely, in the LDF, high LMA was related to lower m , as expected given its potential contribution to greater drought tolerance via a lower surface area: volume ratio, and/or a greater mechanical protection contributing to longer leaf life span and reduced respiration costs (Falcão et al., ; Wright, Westoby, & Reich, ; Wright et al., ).…”

Section: Discussionmentioning

confidence: 68%

“…Some of our study questions were addressed by comparing these single forests that were selected to be highly representative of their forest type, an approach previously used in many ecophysiological comparisons of forests (e.g., Baltzer, Davies, Bunyavejchewin, & Noor, 2008;Blackman, Brodribb, & Jordan, 2012;Falcão et al, 2015;Markesteijn, Iraipi, Bongers, & Poorter, 2010;Zhu, Song, Li, & Ye, 2013). Notably, statistical differences between forests are not necessarily generalizable, but enable refined hypotheses for testing in future studies of replicate forests of each type.…”

Section: Study Sitesmentioning

confidence: 99%

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An extensive suite of functional traits distinguishes Hawaiian wet and dry forests and enables prediction of species vital rates

et al. 2018

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The application of functional traits to predict and explain plant species’ distributions and vital rates has been a major direction in functional ecology for decades, yet numerous physiological traits have not yet been incorporated into the approach. Using commonly measured traits such as leaf mass per area (LMA) and wood density (WD), and additional traits related to water transport, gas exchange and resource economics, including leaf vein, stomatal and wilting traits, we tested hypotheses for Hawaiian wet montane and lowland dry forests (MWF and LDF, respectively): (1) Forests would differ in a wide range of traits as expected from contrasting adaptation; (2) trait values would be more convergent among dry than wet forest species due to the stronger environmental filtering; (3) traits would be intercorrelated within “modules” supporting given functions; (4) relative growth rate (RGR) and mortality rate (m) would correlate with a number of specific traits; with (5) stronger relationships when stratifying by tree size; and (6) RGR and m can be strongly explained from trait‐based models. The MWF species’ traits were associated with adaptation to high soil moisture and nutrient supply and greater shade tolerance, whereas the LDF species’ traits were associated with drought tolerance. Thus, on average, MWF species achieved higher maximum heights than LDF species and had leaves with larger epidermal cells, higher maximum stomatal conductance and CO2 assimilation rate, lower vein lengths per area, higher saturated water content and greater shrinkage when dry, lower dry matter content, higher phosphorus concentration, lower nitrogen to phosphorus ratio, high chlorophyll to nitrogen ratio, high carbon isotope discrimination, high stomatal conductance to nitrogen ratio, less negative turgor loss point and lower WD. Functional traits were more variable in the MWF than LDF, were correlated within modules, and predicted species’ RGR and m across forests, with stronger relationships when stratifying by tree size. Models based on multiple traits predicted vital rates across forests (R2 = 0.70–0.72; p < 0.01). Our findings are consistent with a powerful role of broad suites of functional traits in contributing to forest species’ distributions, integrated plant design and vital rates. A plain language summary is available for this article.

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Section: Discussionmentioning

confidence: 68%

Section: Study Sitesmentioning

confidence: 99%

An extensive suite of functional traits distinguishes Hawaiian wet and dry forests and enables prediction of species vital rates

et al. 2018

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“…The directionality of changes in leaf traits among species in successional TDF remains unresolved, and the changes through ITV are still largely unexplored (although Falcão et al . 27 found that they are directional in one species in Brazilian TDF). At the scale of individual trees, changes in functional trait values can result from environmental changes during succession, the smaller-scale heterogeneity in light levels within the forest, and ontogenetic changes.…”

Section: Introductionmentioning

confidence: 94%

Contrasting patterns of leaf trait variation among and within species during tropical dry forest succession in Costa Rica

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et al. 2018

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A coordinated response to environmental drivers amongst individual functional traits is central to the plant strategy concept. However, whether the trait co-ordination observed at the global scale occurs at other ecological scales (especially within species) remains an open question. Here, for sapling communities of two tropical dry forest types in Costa Rica, we show large differences amongst traits in the relative contribution of species turnover and intraspecific variation to their directional changes in response to environmental changes along a successional gradient. We studied the response of functional traits associated with the leaf economics spectrum and drought tolerance using intensive sampling to analyse inter- and intra-specific responses to environmental changes and ontogeny. Although the overall functional composition of the sapling communities changed during succession more through species turnover than through intraspecific trait variation, their relative contributions differed greatly amongst traits. For instance, community mean specific leaf area changed mostly due to intraspecific variation. Traits of the leaf economics spectrum showed decoupled responses to environmental drivers and ontogeny. These findings emphasise how divergent ecological mechanisms combine to cause great differences in changes of individual functional traits over environmental gradients and ecological scales.

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“…O conhecimento sobre a composição florística das espécies e do comportamento sucessional e ecológico, das comunidades existentes em uma área florestal, são de grande importância para tomar-se decisões sobre as atividades de recuperação e as ações de conservação nestes ambientes (M arangon et al 2016). Neste sentido, é necessário compreender os processos ecofisiológicos da vegetação, analisando-se a adaptação e o estabelecimento das espécies, uma vez que não há uma constância no tempo e no espaço das condições dos habitats florestais sucessionais (Falcão et al 2015).…”

Section: Introductionunclassified

Regeneração natural em área de Caatinga no Baixo São Francisco sergipano: composição, diversidade, similaridade florística de espécies florestais

et al. 2019

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Resumo O conhecimento da regeneração natural na Catinga é essencial para compreender processos ecológicos importantes que aí ocorrem, especialmente a sua dinâmica, levando-se em consideração a condição climática a qual está associada. Este trabalho foi realizado com o objetivo de compreender a regeneração natural, investigando-se a capacidade de resiliência de três ambientes de Caatinga, sob diferentes níveis de conservação. A área de estudo corresponde a um remanescente de Caatinga situado em uma Unidade de Conservação denominada M onumento Natural Grota do Angico, no Alto Sertão sergipano. Foram instaladas 15 parcelas de 20 x 2 m em cada área, sendo amostrados todos os indivíduos de espécies lenhosas (vivas), com diâmetro ao nível do solo (DNS) menor que 3 cm e altura total mínima de 15 cm, sendo analisados os índices de diversidade de Shannon-Weaver (H') e de Equabilidade de Pielou (J'), de Similaridade de Jacard, e o padrão de distribuição espacial das espécies pelo Índice de Payandeh. Foi possível observar a formação de dois grupos bem definidos. A maior parte das espécies amostradas apresentou um padrão de distribuição espacial agregado. O processo de regeneração natural está em fase inicial na área de Caatinga estudada, expressando o seu potencial de resiliência. Palavras-chave: Semiárido, Floresta tropical seca, Dinâmica florestal.

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Phenotypic plasticity and ecophysiological strategies in a tropical dry forest chronosequence: A study case with Poincianella pyramidalis

Cited by 39 publications

References 57 publications

An extensive suite of functional traits distinguishes Hawaiian wet and dry forests and enables prediction of species vital rates

An extensive suite of functional traits distinguishes Hawaiian wet and dry forests and enables prediction of species vital rates

Contrasting patterns of leaf trait variation among and within species during tropical dry forest succession in Costa Rica

Regeneração natural em área de Caatinga no Baixo São Francisco sergipano: composição, diversidade, similaridade florística de espécies florestais

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