Growth and reproduction respond differently to climate in three Neotropical tree species

Alfaro‐Sánchez, Raquel; Muller‐Landau, Helene C.; Wright, S. Joseph; Camarero, J. Julio

doi:10.1007/s00442-017-3879-3

Cited by 31 publications

(17 citation statements)

References 54 publications

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“…More specifically, we expect environmental conditions that favor pests and diseases (higher precipitation and air temperatures and lower seasonality) and disfavor plant defense mechanisms against these (higher soil fertility and lower soil density) to be associated with lower tree densities. By contrast, higher soil fertility and precipitation are expected to positively influence seed production and biomass accumulation of individual trees, while higher air temperature is anticipated to have a negative influence on these variables in line with findings for tree species around the world (Feeley et al, 2007;Clark et al, 2010Clark et al, , 2016Pérez-Ramos et al, 2010;Rozendaal and Zuidema, 2011;Girard et al, 2012;Wagner et al, 2014;Alfaro-Sánchez et al, 2017).…”

Section: Introductionsupporting

confidence: 71%

“…Furthermore, habitat quality measures at the level of individuals (tree-centric) and populations (area-based) are expected to show idiosyncratic responses to environmental gradients that exist across tree species distribution ranges. For example, individual tree growth and reproductive success have been found to respond differently to environmental variables in Neotropical tree species in accordance with different resource requirements and environmental tolerance limits throughout the trees' life cycles (Staudhammer et al, 2013;Alfaro-Sánchez et al, 2017). Variation in conspecific tree density and aggregation across environmental gradients, on the other hand, is partly related to environmentally controlled CNDDD effects of recruitment (Bachelot et al, 2016;LaManna et al, 2016LaManna et al, , 2017.…”

Section: Introductionmentioning

confidence: 99%

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Habitat Quality Differentiation and Consequences for Ecosystem Service Provision of an Amazonian Hyperdominant Tree Species

et al. 2021

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Ecosystem services of Amazonian forests are disproportionally produced by a limited set of hyperdominant tree species. Yet the spatial variation in the delivery of ecosystem services by individual hyperdominant species across their distribution ranges and corresponding environmental gradients is poorly understood. Here, we use the concept of habitat quality to unravel the effect of environmental gradients on seed production and aboveground biomass (AGB) of the Brazil nut, one of Amazonia’s largest and most long-lived hyperdominants. We find that a range of climate and soil gradients create trade-offs between density and fitness of Brazil nut trees. Density responses to environmental gradients were in line with predictions under the Janzen–Connell and Herms–Mattson hypotheses, whereas tree fitness responses were in line with resource requirements of trees over their life cycle. These trade-offs resulted in divergent responses in area-based seed production and AGB. While seed production and AGB of individual trees (i.e., fitness) responded similarly to most environmental gradients, they showed opposite tendencies to tree density for almost half of the gradients. However, for gradients creating opposite fitness-density responses, area-based seed production was invariable, while trends in area-based AGB tended to mirror the response of tree density. We conclude that while the relation between environmental gradients and tree density is generally indicative of the response of AGB accumulation in a given area of forest, this is not necessarily the case for fruit production.

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Section: Introductionsupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Habitat Quality Differentiation and Consequences for Ecosystem Service Provision of an Amazonian Hyperdominant Tree Species

et al. 2021

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“…As observed elsewhere in long-term tropical forest monitoring studies [ 73 ], differences in allocation to reproduction, foliage and fine woody litterfall varied over time [ 48 ]. The sharp early decline in fruit- and flower-fall followed by a recovery described clear resilience in reproductive output ( figure 3 ).…”

Section: Discussionmentioning

confidence: 72%

Short-term effects of drought on tropical forest do not fully predict impacts of repeated or long-term drought: gas exchange versus growth

Meir

Mencuccini

Binks

et al. 2018

Phil. Trans. R. Soc. B

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Are short-term responses by tropical rainforest to drought (e.g. during El Niño) sufficient to predict changes over the long-term, or from repeated drought? Using the world's only long-term (16-year) drought experiment in tropical forest we examine predictability from short-term measurements (1–2 years). Transpiration was maximized in droughted forest: it consumed all available throughfall throughout the 16 years of study. Leaf photosynthetic capacity was maintained, but only when averaged across tree size groups. Annual transpiration in droughted forest was less than in control, with initial reductions (at high biomass) imposed by foliar stomatal control. Tree mortality increased after year three, leading to an overall biomass loss of 40%; over the long-term, the main constraint on transpiration was thus imposed by the associated reduction in sapwood area. Altered tree mortality risk may prove predictable from soil and plant hydraulics, but additional monitoring is needed to test whether future biomass will stabilize or collapse. Allocation of assimilate differed over time: stem growth and reproductive output declined in the short-term, but following mortality-related changes in resource availability, both showed long-term resilience, with partial or full recovery. Understanding and simulation of these phenomena and related trade-offs in allocation will advance more effectively through greater use of optimization and probabilistic modelling approaches.This article is part of a discussion meeting issue ‘The impact of the 2015/2016 El Niño on the terrestrial tropical carbon cycle: patterns, mechanisms and implications’.

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“…En los reportes de anillos de crecimiento anuales de los árboles tropicales, se incluye a las especies de la familia botánica Bignoniaceae (Tabla 1), principalmente especies de los géneros Gormania, Handroanthus, Jacaranda, Tabebuia y Zeyheria; en el género Jacaranda se tiene dos especies: Jacaranda copaia y J. cuspidifolia. Sin embargo, pocos estudios se han realizado con la especie J. copaia, desde estudios que comprobaron la anualidad de los anillos de crecimiento (DÉTIENNE, 1989) hasta los últimos años donde comprobaron el crecimiento y la reproducción de J. copaia, responden de manera diferente al clima en Panamá (ALFARO et al, 2017).…”

Section: Introductionunclassified

DENDROCRONOLOGÍA DE Jacaranda copaia QUE CONTIENE REGISTRO ENSO EN MADRE DE DIOS, PERÚ

Cahuana

Soarez

Huacac

et al. 2020

NAT

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El objetivo de esta investigación fue construir la cronología de los anillos de crecimiento de la especie Jacaranda copaia (Achihua), analizar con los eventos más severos del fenómeno El Niño. Para ello se colectaron 10 árboles de J. copaia, de un bosque relicto de la región de Madre de Dios en el Perú. Se obtuvieron cuatro muestras por árbol, mediante la sonda de Pressler. El proceso, medición y análisis de los anillos de crecimiento fueron realizados mediante técnicas estándar de dendrocronología. Se construyó la cronología master de J. copaia, se determinó el incremento medio anual de la especie y la cronología fue relacionada con los eventos severos del fenómeno de El Niño. Los resultados muestran que J. copaia, presentan anillos de crecimiento distinto y anuales, delimitados por zonas fibrosas, la intercorrelación del ancho de los anillos de crecimiento entre árboles fue de 0.36. La edad máxima fue de 34 años. La relación entre la cronología y los eventos más severos del fenómeno El Niño fue de 0.18 y tuvo una relación clara en el año 1998. Los resultados revelan el potencial dendrocronológico de la especie J. copaia, e los bosques tropicales de Madre de Dios y para futuros estudios dendroclimáticos.

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Growth and reproduction respond differently to climate in three Neotropical tree species

Cited by 31 publications

References 54 publications

Habitat Quality Differentiation and Consequences for Ecosystem Service Provision of an Amazonian Hyperdominant Tree Species

Habitat Quality Differentiation and Consequences for Ecosystem Service Provision of an Amazonian Hyperdominant Tree Species

Short-term effects of drought on tropical forest do not fully predict impacts of repeated or long-term drought: gas exchange versus growth

DENDROCRONOLOGÍA DE Jacaranda copaia QUE CONTIENE REGISTRO ENSO EN MADRE DE DIOS, PERÚ

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