A5031685482- Plant Water Relations and Carbon Dynamics
- Forest ecology and management
- Marine and coastal plant biology
- Ecology and Vegetation Dynamics Studies
- Genetic diversity and population structure
- Tree-ring climate responses
- Oil Palm Production and Sustainability
- Horticultural and Viticultural Research
- Coastal wetland ecosystem dynamics
- Environmental and biological studies
- Plant Stress Responses and Tolerance
- Hydrology and Watershed Management Studies
- Bioenergy crop production and management
- Cryospheric studies and observations
- Anaerobic Digestion and Biogas Production
- Peatlands and Wetlands Ecology
- Atmospheric and Environmental Gas Dynamics
- Plant responses to elevated CO2
- Soil Carbon and Nitrogen Dynamics
- Fire effects on ecosystems
- Remote Sensing in Agriculture
University of Exeter
2021-2024
Universidade Estadual de Campinas (UNICAMP)
2017-2023
University of Leeds
2021-2023
Abstract Non-structural carbohydrates (NSC) are major substrates for plant metabolism and have been implicated in mediating drought-induced tree mortality. Despite their significance, NSC dynamics tropical forests remain little studied. We present leaf branch data 82 Amazon canopy species six sites spanning a broad precipitation gradient. During the wet season, total (NSC T ) concentrations both organs were remarkably similar across communities. However, its soluble sugar (SS) starch...
Abstract Tropical forests face increasing climate risk 1,2 , yet our ability to predict their response change is limited by poor understanding of resistance water stress. Although xylem embolism thresholds (for example, $$\varPsi $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>Ψ</mml:mi> </mml:math> 50 ) and hydraulic safety margins HSM are important predictors drought-induced mortality 3–5 little known about how these vary across Earth’s largest tropical forest. Here,...
Abstract Montane ecosystems are known for their high numbers of endemic species, unique climate conditions, and wide variety ecosystem services such as water supply carbon storage. Although many ecohydrological climatic studies montane environments have been carried out in temperate boreal regions, few done Neotropical regions. Hence, the objective this review is to synthesize existing literature on main factors (biotic abiotic) that influence vegetation distribution, functional traits,...
Eddy covariance serves as one the most effective techniques for long-term monitoring of ecosystem fluxes, however data integrations rely on complete timeseries, meaning that any gaps due to missing must be reliably filled. To date, many gap-filling approaches have been proposed and extensively evaluated mature and/or less actively managed ecosystems. Random forest regression (RFR) has shown stable perform better in these systems than alternative approaches, particularly when filling longer...
Summary Wood properties influence the leaf life span ( LL ) of tree crowns. As lignin is an important component wood and water transport system, we investigated its relationship with embolism resistance several species in a seasonally dry tropical ecosystem. We determined total monomer contents guaiacyl (G) syringyl (S) related them to traits xylem vulnerability (Ψ 50 for most common Brazilian semiarid, locally known as Caatinga. Leaf was negatively Ψ positively S : G, which . This means...
Abstract Tropical tree species span a range of life‐history strategies within fast–slow continuum. The position this continuum is thought to reflect negative relationship between growth and storage, with fast‐growing allocating more carbon slow‐growing investing in storage. For tropical species, the storage has been largely studied on seedlings less so adult trees. We evaluated how stored non‐structural carbohydrates (NSC) vary across trees spanning Peruvian Amazon by: (a) analysing...
Large-scale conversion of tropical peat swamp forests to agricultural plantations has resulted in substantial carbon dioxide (CO2) emissions. Despite consensus on the importance these emissions, cause large range magnitudes reported values remains uncertain. Differences fluxes might result from site specific factors and/or potential limitations manual flux chambers commonly used. It is important that any biases at level are explored as they ultimately affect regional and global emission...
Methane (CH4) emissions from tropical wetlands remain the largest uncertainty in global CH4 cycle, and due to high warming potential of (84 times that CO2 over a 20-year timescale), changes inemissions can disproportionately influence climate coming decades. has short atmospheric life span, therefore reducing could be key meeting Paris agreement temperature targets. To achieve this, it is essential improve our understanding regional emissions, especially areas, natural sources but where...
Abstract Local adaptation is often a product of environmental variations in geographical space and has implications for biodiversity conservation. We investigated the role latitudinal heterogeneity climate on organization genetic phenotypic variation dominant coastal tree Avicennia schaueriana . In common garden experiment, samples from an equatorial region, with pronounced seasonality precipitation, accumulated less biomass, showed lower stomatal conductance transpiration, narrower xylem...
Lianas (woody vines) are important components of tropical forests and known to compete with host trees for resources, decrease tree growth increase mortality. Given the observed increases in liana abundance some their impacts on forest function, an integrated understanding carbon dynamics lianas liana-infested is critical improved prediction responses climate change. Non-structural carbohydrates (NSC) main substrate plant metabolism (e.g. growth, respiration), have been implicated enabling...
Abstract Tropical montane cloud forests (TMCF) have unique climatic conditions, which allow the coexistence of plant lineages with different phytogeographical origins from tropical versus temperate climates. Future climate projections suggest TMCFs will be subjected to increasing drought stress due fog uplift and higher temperatures, possibly leading tree mortality local extinctions, consequently changes in forest composition functioning. Characterizing community functional composition,...
Abstract Local adaptation is often a product of environmental variations in the geographical space and has implications for biodiversity conservation. We investigated role latitudinal heterogeneity climate on organization genetic phenotypic variation dominant coastal tree, Avicennia schaueriana . In common garden experiment, samples from an equatorial region, marked by rainy/dry seasons, accumulated less biomass, showed lower stomatal conductance transpiration, narrower xylem vessels,...
Rapid expansion of agricultural area to meet increasing consumer demand has led large-scale conversion tropical peat swamp forest plantation, resulting in substantial carbon dioxide (CO2) emissions. However, the accuracy reported emission remains highly uncertain due variability sampling designs and site-specific factors being poorly quantified on soils. These uncertainties propagate into global estimates are exacerbated by a limited understanding how fluxes controlled. Here, we present 6...
Carbon allocation to non-structural carbohydrates (NSC) is essential for plant metabolism playing an important role in tree responses drought. It still unclear if and how interspecific hydraulic trait variation modulates NSC concentration dynamics different organs, particularly tropical species. We investigated whether drought-resistance strategies (inferred from traits) explain seasonal interannual leaves, branches, trunks, roots eastern Amazon species Brazil. measured eight abundant during...