A5019994665- Plant Water Relations and Carbon Dynamics
- Tree-ring climate responses
- Forest ecology and management
- Ecology and Vegetation Dynamics Studies
- Hydrology and Watershed Management Studies
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Land Use and Ecosystem Services
- Soil erosion and sediment transport
- Soil Carbon and Nitrogen Dynamics
- Species Distribution and Climate Change
- Plant and animal studies
- Coastal wetland ecosystem dynamics
- Geology and Paleoclimatology Research
- Soil and Unsaturated Flow
- Remote Sensing in Agriculture
- Morphological variations and asymmetry
- Forest Management and Policy
- Sustainability and Climate Change Governance
- Tree Root and Stability Studies
- Climate Change and Sustainable Development
- Urban Green Space and Health
- Environmental Toxicology and Ecotoxicology
- Insect and Arachnid Ecology and Behavior
- Geographies of human-animal interactions
University of Auckland
2014-2024
Te Pūnaha Matatini
2022
University of Technology Sydney
2002-2011
National Centre for Groundwater Research and Training
2010
Sydney Water
2003
Abstract Societal, economic and scientific interests in knowing where biodiversity is, how it is faring what can be done to efficiently mitigate further loss the associated of ecosystem services are at an all‐time high. So far, however, monitoring has primarily focused on structural compositional features ecosystems despite growing evidence that functions key elucidating mechanisms through which biological diversity generates humanity. This gap traced current lack consensus exactly track...
Summary Forest dieback caused by drought‐induced tree mortality has been observed world‐wide. Forecasting which trees in locations are vulnerable to is important predict the consequences of drought on forest structure, biodiversity and ecosystem function. In this paper, our central aim was compile a synthesis traits associated abiotic variables that can be used mortality. We reviewed literature specifically links functional site conditions (i.e. edaphic biotic conditions), targeting studies...
Abstract. Plant transpiration links physiological responses of vegetation to water supply and demand with hydrological, energy, carbon budgets at the land–atmosphere interface. However, despite being main land evaporative flux global scale, its response environmental drivers are currently not well constrained by observations. Here we introduce first compilation whole-plant data from sap flow measurements (SAPFLUXNET, https://sapfluxnet.creaf.cat/, last access: 8 June 2021). We harmonized...
Deadwood is a large global carbon store with its size partially determined by biotic decay. Microbial wood decay rates are known to respond changing temperature and precipitation. Termites also important decomposers in the tropics but less well studied. An understanding of their climate sensitivities needed estimate change effects on pools. Using data from 133 sites spanning six continents, we found that termite discovery consumption were highly sensitive (with increasing >6.8 times per 10°C...
From the 21st to 23rd June 2017, Herrenhausen castle in Hannover/Germany hosted a diverse and large crowd with more than 70 tree physiologists, forest ecologists, inventory experts, remote-sensing scientists, vegetation modelers. Participants from six continents 20 countries gathered discuss how improve scientific determination of global-scale patterns, drivers, trends threatening phenomenon: apparent emergence recent widespread mortality events forests around world. Continuing theme...
Nocturnal fluxes may be a significant factor in the annual water budget of forested ecosystems. Here, we assessed sap flow two co-occurring evergreen species (Eucalyptus parramattensis and Angophora bakeri) temperate woodland for 2 years order to quantify magnitude seasonal nocturnal (En) under different environmental conditions. The showed diurnal relations, demonstrated by curves stomatal conductance, leaf potential. relative influence several microclimatic variables, including wind speed...
Daily and seasonal patterns of tree water use were measured for the two dominant species, Angophora bakeri E.C.Hall (narrow-leaved apple) Eucalyptus sclerophylla (Blakely) L.A.S. Johnson & Blaxell (scribbly gum), in a temperate, open, evergreen woodland using sap flow sensors, along with information about soil, leaf, micro-climatological variables. The aims this work to: (a) validate soil-plant-atmosphere (SPA) model specific site; (b) determine total depth from which uptake must occur to...
Indigenous Knowledge (IK) provides effective solutions to environmental threats and pressures.Using approaches that fully include concepts, ideas, worldviews, knowledge, process, practice helps the recovery of threatened species endangered ecosystems, but it is essential such work engages with Peoples engagement respectful, reciprocal, meaningful.We support using mātauranga (Māori culture, values, worldview) alongside science, because incorporating socio-cultural perspectives initiatives...
Chlorophyll a fluorescence has the potential to become valuable ecotoxicological endpoint, which could be used with range of aquatic phototrophs. bioassays have been applied in assessment heavy metals, herbicides, petrochemicals and nutrients. The strengths this endpoint are that it is rapid, non-invasive non-destructive, while major weakness lack clear ecological relevance. We provide an overview chlorophyll applications ecotoxicology. reviewed test conditions, parameters protocols date...
ABSTRACT Stomata respond to increasing leaf‐to‐air vapour pressure difference (LAVPD) ( D ) by closing. The mechanism which this occurs is debated. A role for feedback and peristomatal transpiration has been proposed. In paper, we apply a recent mechanistic model of stomatal behaviour, compare experimental data the influence on conductance. We manipulated cuticular conductance g c three independent methods. First, increased using solvent mixture applied both leaf surfaces prior determining...
Abstract A soil–plant–atmosphere model was used to estimate gross primary productivity (GPP) and evapotranspiration (ET) of a tropical savanna in Australia. This paper describes modifications required simulate the substantial C4 grass understory together with C3 trees. The further improved include seasonal distribution leaf area foliar nitrogen through 10 canopy layers. Model outputs were compared 5‐year eddy covariance dataset. Adding photosynthesis component efficiency root‐mean‐squared...
Abstract A modified Jarvis–Stewart model of canopy transpiration ( E c ) was tested over five ecosystems differing in climate, soil type and species composition. The aims this study were to investigate the model's applicability multiple ecosystems; determine whether number parameters could be reduced by assuming that site‐specific responses solar radiation, vapour pressure deficit moisture content vary little between sites; examine convergence behaviour water‐use across sites. This...