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Key message Pterocarpus officinalisis able to (1) improve its acclimation capacity if soil salinity increases slowly and (2) benefit from afreshwater episode. Abstract One likely effect of global change is an increase of the amplitude of salt variations in the soil of brackish coastal wetland forests. In the Antilles, such forests are dominated by the species Pterocarpus officinalis. The study...
Key messageEmerging plant economics spectrum theories were confirmed across temperate forest systems of the eastern US where the use of a forest stand’s mean wood density elucidated forest volume and biomass production dynamics integrating aspects of climate, tree mortality/growth, and rates of site occupancy. Abstract As a tree’s functional trait of wood density has been used to refine models...
Key messageVertical and temporal patterns of tree architecture and their relationship with woody plant crown exposure index varied with succession in evergreen broad-leaved forests in eastern China. Abstract Linking temporal pattern of tree architecture with changing light conditions through forest succession is important for understanding plant adaptive strategies. We determined vertical...
Key messageThe main achievement of this work was an attempt to determine the best association between five tropical species and light environments, based on the physiological and morphological characters related to photosynthesis. Abstract Information about light tolerance and photosynthetic plasticity of indigenous tropical tree species is still limited, particularly information of first...
Key messageHigh-throughput sequencing and subsequent analysis indicated that miRNAs play crucial roles in floral thermogenesis ofMagnolia denudataflowers. Abstract Animal-like thermogenic activity in flowers has been reported in several families of seed plants. Many studies have explored the ecological significance of thermogenesis in pollination biology; however, the molecular mechanisms...
Key messageWe demonstrate the negative impacts of ground thaw on sap flow in black spruce. Climate warming is accelerating permafrost thaw; our study may inform observed warming-related productivity declines in subarctic forests. Abstract Many of Canada’s northern boreal peatlands are situated on discontinuous permafrost. Here, permafrost provides the physical foundation on which forests persist...
Key messageThe daily stem radial growth ofP. orientalisduring the main growing period in semi-arid areas of North China is mainly limited by moisture availability. Abstract Finer resolution studies of tree stem radial growth on short temporal scales can be useful for exploring the main environmental variables that trigger radial growth. The objective of this study was to determine the...
Key messageA common pattern in Aleppo pine Δ13C responses to both spatial and temporal variability in precipitation was observed, with a general agreement between NDVI, Δ13C and growth that confirms precipitation as key environmental driver. Abstract The aim of this study was to assess the spatiotemporal variability of carbon isotope discrimination (Δ13C) records and its relationship...
Key messageConduct comprehensive field studies and laboratory tests to determine geometrical and material properties of pneumatophores. They are shown to be rigid under hydrodynamic loading, and deflection of the root tip caused by normal flow drag is less than 1mm. Abstract An investigation into the characteristics of Sonneratia alba mangrove roots was performed to improve our understanding...
Key message The formation of an oleaginous palm fruit was described by anatomical and physiological evaluations that allowed us to correlate and associate pericarp and seed ontogenesis and define the developmental phases. Abstract The pseudomonomerous pyrenarium fruits of Arecaceae demonstrate complex and slow development pathways, and accumulate large quantities of energy reserves, making them...
Key messageAlthough exposure to multiple cutting cycles reduces stored reserves, shootdiameter and shoot length, it, however, increases shoot production per resprouting stump and foliar nitrogen. Abstract In disturbance-prone environments with fluctuating seasonal rainfall such as savannas, the repeated cutting of the same trees eventually results in a possible decline in tree abundance....
Key message The tropical treeCariniana pyriformisthat grows in the rainforest of the Colombian Darien Gap has annual rings sensitive to precipitation and to ENSO and dual porosity: diffuse, and semi-ring-porous. Abstract We conducted a dendrochronological study of the species Cariniana pyriformis (Abarco), which grows in the tropical rainforests of the Colombian Pacific. We used cross sections...
Key messageBased on above- and below-ground biomass measurements from 604 and 212 sample trees respectively, aboveground biomass models for different origins didn’t have significant difference while belowground biomass models did. Abstract Based on the measurement data of aboveground biomass from 604 sample trees and belowground biomass from 212 sample trees of Chinese fir (Cunninghamia lanceolata...
Tree-ring width chronologies of Tsuga longibracteata (Fujian) and Chamaecyparis obtusa (Taiwan) were developed from southeast China, and climatic factors affecting the tree-ring widths of T. longibracteata and C. obtusa were examined. Similar correlations between tree-ring chronologies and climate data demonstrated common response of radial growth of the two species to climate. The radial growth of...
Key messageHighly variable nighttime transpiration, with higher rates generally observed after preceding fog, is prevalent in dominant tree species of the nutrient-poor tropical montane cloud forest environment of central Veracruz, Mexico. Abstract Although nighttime transpiration (En) is prevalent in a wide range of species from cloud-affected forests, its magnitude relative to total daily...
Key messagePhotosynthetic capacity of yew needles depends primarily on light environment, with little evidence that developmental stage is a determinant photosynthetic performance. However, needle morphology is mostly determined by plant size. Abstract Populations of yew Taxus baccata are often characterized by a lack of natural regeneration and stands of this species have been afforded priority...
Key messageWe evaluated the error caused by optical measurements of leaf area index using a direct method in a mixed broadleaf-coniferous forest in China. Abstract Indirect optical methods to measure leaf area index (LAI) have been previously developed, but it is difficult to evaluate the accuracy of these methods in a mixed broadleaf-coniferous forest. In this study, the LAI in a mixed broadleaved-Korean...
Key messageThis is the first time to show that alpineCassiope fastigiatashrubs form distinct annual growth rings and record climatic signals. Abstract Cassiope species grow as dwarf shrubs at high latitudes and high elevations. Unlike in the High Arctic, not much is known about their age and growth on the Tibetan Plateau and in the Himalayas. There, Cassiope fastigiata could potentially...
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