Intraspecific variation in functional wood anatomy of tropical trees caused by effects of forest edge

Costa, Warlen Silva da; Cunha, Maura Da; Rodrigues, Pablo José Francisco Pena; Iguatemy, Mariana; Valladares, Fernando; Barros, Cláudia Franca

doi:10.1016/j.foreco.2020.118305

Cited by 11 publications

(6 citation statements)

References 44 publications

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“…For the species studied here, we found high intraspecies variation that could be the result of interannual variation, which possibly explains why low variation between sites was found. Similar results were found in other studies that compared rainfall differences in tropical dry forests [84,85]. Instead, differences are found when different types of forests are compared [37,[85][86][87].…”

Section: Low Variation In Wood Anatomical Traits Among Rainfall Gradi...supporting

confidence: 89%

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Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico

Alvarado,

Terrazas

2023

PLoS ONE

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In tropical dry forests, studies on wood anatomical traits have concentrated mainly on variations in vessel diameter and frequency. Recent research suggests that parenchyma and fibers also play an important role in water conduction and in xylem hydraulic safety. However, these relationships are not fully understood, and wood trait variation among different functional profiles as well as their variation under different water availability scenarios have been little studied. In this work, we aim to (1) characterize a set of wood anatomical traits among six selected tree species that represent the economic spectrum of tropical dry forests, (2) assess the variation in these traits under three different rainfall regimes, and (3) determine the relationships between wood anatomical traits and possible functional trade-offs. Differences among species and sites in wood traits were explored. Linear mixed models were fitted, and model comparison was performed. Most variation occurred among species along the economic spectrum. Obligate deciduous, low wood density species were characterized by wood with wide vessels and low frequency, suggesting high water transport capacity but sensitivity to drought. Moreover, high cell fractions of carbon and water storage were also found in these tree species related to the occurrence of abundant parenchyma or septate fibers. Contrary to what most studies show, Cochlospermum vitifolium, a succulent tree species, presented the greatest variation in wood traits. Facultative deciduous, high wood density species were characterized by a sturdy vascular system that may favor resistance to cavitation and low reserve storage. Contrary to our expectations, variation among the rainfall regimes was generally low in all species and was mostly related to vessel traits, while fiber and parenchyma traits presented little variation among species. Strong functional associations between wood anatomical traits and functional trade-offs were found for the six tree species studied along the economic spectrum of tropical dry forests.

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Section: Low Variation In Wood Anatomical Traits Among Rainfall Gradi...supporting

confidence: 89%

“…Similar results were found in other studies that compared rainfall differences in tropical dry forests [84,85]. Instead, differences are found when different types of forests are compared [37,[85][86][87].…”

Section: Low Variation In Wood Anatomical Traits Among Rainfall Gradi...supporting

confidence: 89%

Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico

Alvarado,

Terrazas

2023

PLoS ONE

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“…Para este estudio se tienen en cuenta las diferencias de temperatura y humedad ambiental en el interior y borde de un relicto de bosque; condiciones microclimáticas que exponen a las plantas a modificaciones anatómicas en su tejido leñoso debido al estrés hídrico (Da Costa et al, 2020). El objetivo es conocer las respuestas de las plantas con respecto a la conductividad y eficiencia hidráulica de la madera bajo diferentes condiciones ambientales.…”

Section: Biota Colombiana 25 -2024 |unclassified

Influencia de factores ambientales en rasgos funcionales anatómicos e hidráulicos de madera en bosque seco tropical

Martínez Celis,

Bonilla-Jaimes,

Díaz López

et al. 2024

Biota

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Comparar rasgos en la estructura anatómica de la madera en especies de bosque seco tropical (BST) permite conocer su adaptación a situaciones de sequía en ecosistemas frágiles y fragmentados. Se seleccionaron sitios en el interior y el borde de un BST, con presencia de las especies Astronium graveolens Jacq. y Bursera simaruba (L.) Sarg. Se obtuvieron núcleos de madera por sitio y especie y con microtomías se midió diámetro y número de poros, ancho, largo y número de radios y diámetro de punteaduras. Se tomó humedad y temperatura del ambiente, y humedad del suelo. Finalmente, se realizó ANOVA, ACP, correlación de Pearson e índices de Plasticidad fenotípica (PPI), Variabilidad fenotípica (PVI) y Vulnerabilidad (VI). Se obtuvieron diferencias (P < 0,05) para A. graveolens en ancho y largo de radios, para B. simaruba en número y largo de radios. El PPI (> 0,50) para ambas especies, en el número de poros, refleja su adaptación a las condiciones climáticas. Las diferencias en los radios para ambas especies indica la adaptación anatómica en el almacenamiento de sustancias sintetizadas, situación que influye en la sobrevivencia de las especies cuando presentan déficit hídrico, acudiendo a esta reserva para evitar la deshidratación irreversible.

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“…For example, in forest fragments in the Brazilian Atlantic Forest, Eutepe edulis (Areacaceae) developed smaller leaves with lower SLA, which were associated with forest loss and increasing canopy openness (Cerqueira et al, 2021). In the same region, trees showed a plastic response in wood anatomy to edge effects, developing a greater percentage of axial parenchyma in wood to optimize water transport when growing at the forest edge relative to the interior (da Costa et al, 2020).…”

Section: The Importance Of Itv In Fragmented Habitatmentioning

confidence: 99%

Intraspecific leaf trait variation mediates edge effects on litter decomposition rate in fragmented forests

Zheng,

Yu,

Webber

et al. 2024

Ecology

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There is strong trait dependence in species‐level responses to environmental change and their cascading effects on ecosystem functioning. However, there is little understanding of whether intraspecific trait variation (ITV) can also be an important mechanism mediating environmental effects on ecosystem functioning. This is surprising, given that global change processes such as habitat fragmentation and the creation of forest edges drive strong trait shifts within species. On 20 islands in the Thousand Island Lake, China, we quantified intraspecific leaf trait shifts of a widely distributed shrub species, Vaccinium carlesii, in response to habitat fragmentation. Using a reciprocal transplant decomposition experiment between forest edge and interior on 11 islands with varying areas, we disentangled the relative effects of intraspecific leaf trait variation versus altered environmental conditions on leaf decomposition rates in forest fragments. We found strong intraspecific variation in leaf traits in response to edge effects, with a shift toward recalcitrant leaves with low specific leaf area and high leaf dry matter content from forest interior to the edge. Using structural equation modeling, we showed that such intraspecific leaf trait response to habitat fragmentation had translated into significant plant afterlife effects on leaf decomposition, leading to decreased leaf decomposition rates from the forest interior to the edge. Importantly, the effects of intraspecific leaf trait variation were additive to and stronger than the effects from local environmental changes due to edge effects and habitat loss. Our experiment provides the first quantitative study showing that intraspecific leaf trait response to edge effects is an important driver of the decrease in leaf decomposition rate in fragmented forests. By extending the trait‐based response–effect framework toward the individual level, intraspecific variation in leaf economics traits can provide the missing functional link between environmental change and ecological processes. These findings suggest an important area for future research on incorporating ITV to understand and predict changes in ecosystem functioning in the context of global change.

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Intraspecific variation in functional wood anatomy of tropical trees caused by effects of forest edge

Cited by 11 publications

References 44 publications

Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico

Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico

Influencia de factores ambientales en rasgos funcionales anatómicos e hidráulicos de madera en bosque seco tropical

Intraspecific leaf trait variation mediates edge effects on litter decomposition rate in fragmented forests

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