Linking wood traits to vital rates in tropical rainforest trees: Insights from comparing sapling and adult wood

Osazuwa‐Peters, Oyomoare L.; Wright, S. Joseph; Zanne, Amy E.

doi:10.3732/ajb.1700242

Cited by 30 publications

(28 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Anatomical traits were wood density, conduit lumen diameter (Zanne et al, ), and conduit length (Oberle, Ogle, Zuluaga, Sweeney, & Zanne, ). We also measured the fraction of cross‐sectional area represented by parenchyma and conduit walls based on microscopic analysis of radial sectors of fixed, stained cross sections from three branches per species following the same methodology as (Osazuwa‐Peters, Wright, & Zanne, ).…”

Section: Matierals and Methodsmentioning

confidence: 99%

Accurate forest projections require long‐term wood decay experiments because plant trait effects change through time

Oberle

Lee

Myers

et al. 2019

Global Change Biology

Self Cite

View full text Add to dashboard Cite

Whether global change will drive changing forests from net carbon (C) sinks to sources relates to how quickly deadwood decomposes. Because complete wood mineralization takes years, most experiments focus on how traits, environments and decomposer communities interact as wood decay begins. Few experiments last long enough to test whether drivers change with decay rates through time, with unknown consequences for scaling short‐term results up to long‐term forest ecosystem projections. Using a 7 year experiment that captured complete mineralization among 21 temperate tree species, we demonstrate that trait effects fade with advancing decay. However, wood density and vessel diameter, which may influence permeability, control how decay rates change through time. Denser wood loses mass more slowly at first but more quickly with advancing decay, which resolves ambiguity about the after‐life consequences of this key plant functional trait by demonstrating that its effect on decay depends on experiment duration and sampling frequency. Only long‐term data and a time‐varying model yielded accurate predictions of both mass loss in a concurrent experiment and naturally recruited deadwood structure in a 32‐year‐old forest plot. Given the importance of forests in the carbon cycle, and the pivotal role for wood decay, accurate ecosystem projections are critical and they require experiments that go beyond enumerating potential mechanisms by identifying the temporal scale for their effects.

show abstract

Section: Matierals and Methodsmentioning

confidence: 99%

Accurate forest projections require long‐term wood decay experiments because plant trait effects change through time

Oberle

Lee

Myers

et al. 2019

Global Change Biology

Self Cite

View full text Add to dashboard Cite

show abstract

“…While the importance of vessel traits in driving hydraulic properties and plant performance in neotropical trees is widely recognized and studied (e.g. Christensen‐Dalsgaard, Ennos, & Fournier, ; Hoeber et al, ; Markesteijn, Poorter, Bongers, et al, ; Méndez‐Alonzo et al, ) the importance of fibers and parenchyma in this respect has received less attention (Fortunel, Ruelle, Beauchêne, Fine, & Baraloto, ; Osazuwa‐Peters, Wright, & Zanne, ; Poorter et al, ). This study fills this gap, motivated by the evidence from Mediterranean climate shrub ecosystems that trade‐offs in xylem volume allocation are driving interspecific variability in embolism resistance and sapwood capacitance (Jacobsen et al, ; Jacobsen, Esler, Brandon Pratt, & Ewers, ; Pratt et al, ).…”

Section: Introductionmentioning

confidence: 99%

Wood allocation trade‐offs between fiber wall, fiber lumen, and axial parenchyma drive drought resistance in neotropical trees

Janßen

Hölttä

Fleischer

et al. 2020

Plant Cell & Environment

View full text Add to dashboard Cite

Functional relationships between wood density and measures of xylem hydraulic safety and efficiency are ambiguous, especially in wet tropical forests. In this meta‐analysis, we move beyond wood density per se and identify relationships between xylem allocated to fibers, parenchyma, and vessels and measures of hydraulic safety and efficiency. We analyzed published data of xylem traits, hydraulic properties and measures of drought resistance from neotropical tree species retrieved from 346 sources. We found that xylem volume allocation to fiber walls increases embolism resistance, but at the expense of specific conductivity and sapwood capacitance. Xylem volume investment in fiber lumen increases capacitance, while investment in axial parenchyma is associated with higher specific conductivity. Dominant tree taxa from wet forests prioritize xylem allocation to axial parenchyma at the expense of fiber walls, resulting in a low embolism resistance for a given wood density and a high vulnerability to drought‐induced mortality. We conclude that strong trade‐offs between xylem allocation to fiber walls, fiber lumen, and axial parenchyma drive drought resistance in neotropical trees. Moreover, the benefits of xylem allocation to axial parenchyma in wet tropical trees might not outweigh the consequential low embolism resistance under more frequent and severe droughts in a changing climate.

show abstract

“…The relationship between vessel traits and drought events ( Figure 4) reflects that both Magnolia species are capable to effectively allocate carbon during high hydric stress. These anatomical adjustments can allow Mexican trees of diverse functional types to continue growth during Fall, even if they are evergreen, semi-deciduous or deciduous trees [22,32,61,65,66].…”

Section: Discussionmentioning

confidence: 99%

“…As such, we suggest that dendroecological and anatomic methods are useful to assess the effect of drought events on Magnolia species worldwide and to evaluate their vulnerability of certain trees to climatic stress [9,24,35,58,60,61]. On the hindsight, evaluating just these characteristics can not explain in its entirety the differences observed in TMCFs' trees' hydraulic conducting patterns and vessel functions [4,19,22].…”

Section: Discussionmentioning

confidence: 99%

Drought Effects on Vessel Plasticity of Two Endemic <em>Magnolia</em> Species in the Tropical Montane Cloud Forests of Eastern Mexico

Rodríguez‐Ramírez¹,

Vázquez-García²,

Alcántara-Ayala³

et al. 2018

Preprint

View full text Add to dashboard Cite

The distribution of Mexican Magnolia species´ occur under restricted climatic conditions. As many other tree species from the tropical montane cloud forests (TMCF), Magnolia species appear to be sensitive to drought. Through the use of dendrochronological techniques, this study aims to determine the climate influence on the vessel traits of M. vovidesii and M. schiedeana which are endangered tree species that are endemic to the Sierra Madre Oriental in eastern Mexico. Because most of the tree species in TMCFs are sensitive to climate fluctuations, it is necessary to investigate the differences in the climatic adaptability of the vessel architecture of these trees. This could allow us to further understand the potential peril of climate change on TMCFs. We compared vessel frequency, length and diameter in drought and non–drought years in two Mexican Magnolia species. We used tree–rings width and vessel traits to assess the drought effects on Magnolias’ diffuse–porous wood back to the year 1929. We obtained independent chronologies for M. vovidesii with a span of 75 years (1941–2016), while for M. schiedeana we obtained a span of 319 years (1697–2016). We found that temperature and precipitation are strongly associated with differences in tree–ring width (TRW) between drought and non–drought years. Our results showed anatomical differences in vessel trait response between these two Magnolia species to climatic variation. We suggest that our approach of combining dendroclimatic and anatomical techniques is a powerful tool to analyse anatomic wood plasticity to climatic variation in Magnolia species.

show abstract

Linking wood traits to vital rates in tropical rainforest trees: Insights from comparing sapling and adult wood

Cited by 30 publications

References 70 publications

Accurate forest projections require long‐term wood decay experiments because plant trait effects change through time

Accurate forest projections require long‐term wood decay experiments because plant trait effects change through time

Wood allocation trade‐offs between fiber wall, fiber lumen, and axial parenchyma drive drought resistance in neotropical trees

Drought Effects on Vessel Plasticity of Two Endemic <em>Magnolia</em> Species in the Tropical Montane Cloud Forests of Eastern Mexico

Contact Info

Product

Resources

About