A5069066103- Forest ecology and management
- Plant Water Relations and Carbon Dynamics
- Ecology and Vegetation Dynamics Studies
- Remote Sensing and LiDAR Applications
- Remote Sensing in Agriculture
- Conservation, Biodiversity, and Resource Management
- Species Distribution and Climate Change
- Plant and animal studies
- Leaf Properties and Growth Measurement
- Tree Root and Stability Studies
- Forest Ecology and Biodiversity Studies
- Fire effects on ecosystems
- Land Use and Ecosystem Services
- Agriculture, Land Use, Rural Development
- Wildlife-Road Interactions and Conservation
- Agroforestry and silvopastoral systems
- Land Rights and Reforms
- Wildlife Ecology and Conservation
- Plant responses to elevated CO2
- Tree-ring climate responses
- Cancer-related molecular mechanisms research
- Plant and soil sciences
- Evolution and Paleontology Studies
- Forest Management and Policy
- Geology and Paleoclimatology Research
University of Oxford
2014-2025
Northern Arizona University
2022-2025
Google (United States)
2020
University of Florida
2011-2018
Abstract Methane is an important greenhouse gas 1 , but the role of trees in methane budget remains uncertain 2 . Although it has been shown that wetland and some upland can emit soil-derived at stem base 3,4 also suggested serve as a net sink for atmospheric 5,6 Here we examine situ woody surface exchange tropical, temperate boreal forest trees. We find uptake on surfaces, particular above about m floor, dominate ecosystem contribution trees, resulting tree sink. Stable carbon isotope...
A method using terrestrial laser scanning and 3D quantitative structure models opens up new possibilities to reconstruct tree architecture from tropical rainforest trees. Tree is the three-dimensional arrangement of above ground parts a tree. Ecologists hypothesize that topology branches represents optimized adaptations tree's environment. Thus, an accurate description leads better understanding how form driven by function. Terrestrial (TLS) has demonstrated its potential characterize woody...
Abstract Around 30 Mm 3 of sawlogs are extracted annually by selective logging natural production forests in Amazonia, Earth’s most extensive tropical forest. Decisions concerning the management these will be major importance for Amazonian forests’ fate. To date, no regional assessment sustainability supports decision-making. Based on data from 3500 ha forest inventory plots, our modelling results show that average periodic harvests 20 m −1 not recover end a standard year cutting cycle....
Data capturing multiple axes of tree size and shape, such as a tree's stem diameter, height crown size, underpin wide range ecological research-from developing testing theory on forest structure dynamics, to estimating carbon stocks their uncertainties, integrating remote sensing imagery into monitoring programmes. However, these data can be surprisingly hard come by, particularly for certain regions the world specific taxonomic groups, posing real barrier progress in fields. To overcome...
Average responses of forest foliar traits to elevation are well understood, but far less is known about trait distributional at multiple ecological scales. This limits our understanding the scales which variation occurs in response environmental drivers and change. We analyzed compared canopy distributions using field sampling airborne imaging spectroscopy along an Andes-to-Amazon gradient. Field-estimated were generated from three community-weighting methods, remotely sensed estimates made...
Abstract Aim Tropical elevation gradients are natural laboratories to assess how changing climate can influence tropical forests. However, there is a need for theory and integrated data collection scale from traits ecosystems. We predictions of novel trait‐based scaling theory, including whether observed shifts in forest across broad temperature gradient consistent with local phenotypic optima adaptive compensation temperature. Location An spanning 3,300 m consisting thousands tree trait...
Wind damage is an important driver of forest structure and dynamics, but it poorly understood in natural broadleaf forests. This paper presents a new approach the study wind damage: combining terrestrial laser scanning (TLS) data finite element analysis. Recent advances tree reconstruction from TLS allowed us to accurately represent 3D geometry mechanical simulation, without need for arduous manual mapping or simplifying assumptions about shape. We used this simulation predict strains...
Remote sensing of trait-based ecology can improve our understanding the effect trait diversity on ecosystem functioning.
When 2 Mha of Amazonian forests are disturbed by selective logging each year, more than 90 Tg carbon (C) is emitted to the atmosphere. Emissions then counterbalanced forest regrowth. With an original modelling approach, calibrated on a network 133 permanent plots (175 ha total) across Amazonia, we link regional differences in climate, soil and initial biomass with survivors’ recruits’ C fluxes provide Amazon-wide predictions post-logging recovery. We show that net aboveground recovery over...
Leaf wetting is often considered to have negative effects on plant function, such that wet environments may select for leaves with certain leaf surface, morphological, and architectural traits reduce wettability. However, there growing recognition can positive effects. We measured variation in two traits, drip tips water repellency, a series of nine tropical forest communities occurring along 3300-m elevation gradient southern Peru. To extend this climatic gradient, we also assembled...
Abstract While attention on logging in the tropics has been increasing, studies long‐term effects of silviculture forest dynamics and ecology remain scare spatially limited. Indeed, most our knowledge tropical forests arises from carried out undisturbed forests. This bias is problematic given that logged disturbed are now covering a larger area than so‐called primary A new network permanent sample plots forests, Tropical managed Forests Observatory (Tm FO ), aims to fill this gap by...
We argue that tree and crown structural diversity can should be integrated in the whole-plant economics spectrum. Ecologists have found certain functional trait combinations been more viable than others during evolution, generating a trade-off continuum which summarized along few axes of variation, such as "worldwide leaf spectrum" "wood spectrum". However, for woody plants included well recently introduced "global spectrum plant form function", now merely focusses on height factor. The...
OPINION article Front. For. Glob. Change, 18 June 2019Sec. Tropical Forests Volume 2 - 2019 | https://doi.org/10.3389/ffgc.2019.00032
The relationship between form and function in trees is the subject of a longstanding debate forest ecology provides basis for theories concerning ecosystem structure metabolism. Trees interact with wind dynamic manner exhibit natural sway frequencies damping processes that are important understanding damage. Tree-wind dynamics related to tree architecture, but this not well understood. We present comprehensive view by compiling dataset field measurement spanning conifers broadleaves,...