A5034212436- Plant Water Relations and Carbon Dynamics
- Plant and animal studies
- Fern and Epiphyte Biology
- Ecology and Vegetation Dynamics Studies
- Forest ecology and management
- Tree-ring climate responses
- Plant Diversity and Evolution
- Lichen and fungal ecology
- Tree Root and Stability Studies
- Species Distribution and Climate Change
- Plant responses to elevated CO2
- Geology and Paleoclimatology Research
- Plant Parasitism and Resistance
- Isotope Analysis in Ecology
- Conservation, Biodiversity, and Resource Management
- Forest Insect Ecology and Management
- Leaf Properties and Growth Measurement
- Land Use and Ecosystem Services
- Fire effects on ecosystems
- Coastal wetland ecosystem dynamics
- Forest Ecology and Biodiversity Studies
- Botany and Plant Ecology Studies
- Wildlife Ecology and Conservation
- Soil and Water Nutrient Dynamics
- Insect-Plant Interactions and Control
BOKU University
2015-2024
Gregor Mendel Institute of Molecular Plant Biology
2010-2024
Czech Academy of Sciences, Institute of Botany
2023
University of Vienna
1992-2010
University of Leeds
2010
University of Agricultural Sciences, Dharwad
1999-2002
Instituto de Ecología
1995-1996
Tropical forests disappear rapidly because of deforestation, yet they have the potential to regrow naturally on abandoned lands. We analyze how 12 forest attributes recover during secondary succession and their recovery is interrelated using 77 sites across tropics. are highly resilient low-intensity land use; after 20 years, attain 78% (33 100%) old-growth values. Recovery 90% values fastest for soil (<1 decade) plant functioning (<2.5 decades), intermediate structure species diversity (2.5...
The ratio of stable isotopes in leaves and wood reveals an increase nitrogen availability Panamanian Thai tropical forests.
Summary Drought is considered to enhance susceptibility of N orway spruce ( P icea abies ) infestations by the Eurasian bark beetle I ps typographus , C oleoptera: urculionidae), although empirical evidence scarce. We studied impact experimentally induced drought on tree water status and constitutive resin flow, how physiological stress affects host acceptance resistance. established rain‐out shelters induce both severe (two full‐cover plots) moderate semi‐cover stress. In total, 18 sample...
Abstract Due to massive energetic investments in woody support structures, trees are subject unique physiological, mechanical, and ecological pressures not experienced by herbaceous plants. Despite a wealth of studies exploring trait relationships across the entire plant kingdom, dominant traits underpinning these aspects tree form function remain unclear. Here, considering 18 functional traits, encompassing leaf, seed, bark, wood, crown, root characteristics, we quantify multidimensional...
Abstract. Vascular epiphytes were studied in forests at altitudes from 720 to 2370 m on the Atlantic slope of central Veracruz, Mexico. The biomass all trees each species > 10 cm diameter breast height within plots between 625 and 1500 2 was estimated. number per plot ranged 22 53, 9 249 g dry weight/m . highest values, both biomass, found an intermediate altitude (1430 m). Habitat diversity may contribute epiphyte humid forests, but importance this effect could not be distinguished...
Abstract Rising atmospheric carbon dioxide [CO 2 ] can accelerate tree growth by stimulating photosynthesis and increasing intrinsic water‐use efficiency (iWUE). Little evidence exists, however, for the long‐term gas‐exchange responses of mature trees in tropical forests to combined effects rising other global changes such as warming. Using rings stable isotopes oxygen, we investigated trends iWUE stem (basal area increment, BAI) three canopy species a monsoon forest western Thailand (...
Summary Wood structure differs widely among tree species and with faster growth, higher mortality larger maximum size have been reported to fewer but vessels hydraulic conductivity (Kh). However, previous studies compiled data from various sources, often failed control rarely controlled variation in other traits. We measured wood density, vessel traits for 325 a wet forest Panama, compared leaf demographic using species‐level phylogenetically independent contrasts. showed strong phylogenetic...
Abstract Tropical rainforests harbor exceptionally high biodiversity and store large amounts of carbon in vegetation biomass. However, regional variation plant species richness stock can be substantial, may related to the heterogeneity topoedaphic properties. Therefore, aboveground storage typically differs between geographic forest regions association with locally dominant functional group. A better understanding underlying factors controlling tropical diversity could critical for...
As Earth's climate has varied strongly through geological time, studying the impacts of past change on biodiversity helps to understand risks from future change. However, it remains unclear how paleoclimate shapes spatial variation in biodiversity. Here, we assessed influence Quaternary dissimilarity taxonomic, phylogenetic, and functional composition among neighboring 200-kilometer cells (beta-diversity) for angiosperm trees worldwide. We found that larger glacial-interglacial temperature...
• Background and Aims Seeds of epiphytes must land on branches with suitable substrates microclimates to germinate for the resulting seedlings survive. It is important understand fate seeds in order model populations, but this often neglected when only established plants are included analyses.
Understanding the responses of tropical trees to increasing [CO2] and climate change is important as forests play an role in carbon hydrological cycles. We used stable isotopes (δ13C) tree rings study physiological a dry forest species southern Mexico, Mimosa acantholoba changes atmospheric variation climate. Based on annual records ring δ13C, we calculated intrinsic water use efficiency (W i) intercellular (c i). Our results showed that responded strongly increase over last four decades; W...
Background and AimsWood density is a key variable for understanding life history strategies in tropical trees. Differences wood its radial variation were related to the shade-tolerance of six canopy tree species seasonally dry forest Thailand. In addition, using ring measurements, influence size, age annual increment on gradients was analysed.
Summary Successional gradients are ubiquitous in nature, yet few studies have systematically examined the evolutionary origins of taxa that specialize at different successional stages. Here we quantify habitat specialization Neotropical forest trees and evaluate its lability along a precipitation gradient. Theoretically, should be more evolutionarily conserved wet forests than dry due to extreme microenvironmental differentiation between early late‐successional stages forest. We applied...
Abstract Climate change‐related environmental stress has been recognized as a driving force in accelerating forest mortality over the last decades Central Europe. Here, we aim to elucidate thermal sensitivity of three native conifer species, namely Norway spruce ( Picea abies ), Scots pine Pinus sylvestris ) and silver fir Abies alba non‐native Austrian nigra Douglas Pseudotsuga menziesii Atlas cedar Cedrus atlantica ). Thermal sensitivity, defined here decline maximum quantum yield...
Safeguarding Earth's tree diversity is a conservation priority due to the importance of trees for biodiversity and ecosystem functions services such as carbon sequestration. Here, we improve foundation effective global by analyzing recently developed database species covering 46,752 species. We quantify range protection anthropogenic pressures each develop priorities across taxonomic, phylogenetic, functional dimensions. also assess effectiveness several influential proposed prioritization...
Abstract Climate extremes and biotic interactions at the neighbourhood scale affect tropical forest dynamics with long‐term consequences for biodiversity, global carbon cycling climate change mitigation. However, disturbance may crowding intensity, thus relative contribution of on tree growth, thereby influencing resistance resilience to change. Here, we aim evaluate separate interactive effects neighbours growth in old‐growth disturbed forests. We used 30 years measurements over 300 species...