A5017598461- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Plant Pathogens and Resistance
- Plant Pathogens and Fungal Diseases
- Rangeland and Wildlife Management
- Pasture and Agricultural Systems
- Botany and Plant Ecology Studies
- Wildlife Ecology and Conservation
- Plant and animal studies
- Yeasts and Rust Fungi Studies
- Fire effects on ecosystems
- Invertebrate Taxonomy and Ecology
- Lichen and fungal ecology
- Wildlife-Road Interactions and Conservation
- Plant Parasitism and Resistance
- Botany, Ecology, and Taxonomy Studies
- Mycorrhizal Fungi and Plant Interactions
- Geology and Paleoclimatology Research
- Peatlands and Wetlands Ecology
- Genetic diversity and population structure
- Plant Taxonomy and Phylogenetics
- Forest Ecology and Biodiversity Studies
- Plant and Fungal Species Descriptions
- Mediterranean and Iberian flora and fauna
- Marine Biology and Ecology Research
La Trobe University
2013-2024
Department of Climate Change, Energy, the Environment and Water
2024
New South Wales Department of Primary Industries
2023
NSW Department of Planning and Environment
2008-2023
ETH Zurich
2014-2022
University of Concepción
2014-2022
Centro Científico Tecnológico - Mendoza
2022
Martin Luther University Halle-Wittenberg
2022
Czech Academy of Sciences, Institute of Botany
2022
German Centre for Integrative Biodiversity Research
2022
Nonnative species richness typically declines along environmental gradients such as elevation. It is usually assumed that this because few invaders possess the necessary adaptations to succeed under extreme conditions. Here, we show nonnative plants reaching high elevations around world are not highly specialized stress tolerators but with broad climatic tolerances capable of growing across a wide elevational range. These results contrast patterns for native species, and they can be...
Globally, Phytophthora cinnamomi is listed as one of the 100 worst invasive alien species and active management required to reduce impact prevent spread in both horticulture natural ecosystems. Conversely, there are regions thought be suitable for pathogen where no disease observed. We developed a climex model global distribution P. based on pathogen's response temperature moisture by incorporating extensive empirical evidence presence absence pathogen. The captured areas climatic...
Abstract High-elevation ecosystems are among the few worldwide that not yet heavily invaded by non-native plants. This is expected to change as species expand their range limits upwards fill climatic niches and respond ongoing anthropogenic disturbances. Yet, whether how quickly these changes happening has only been assessed in a isolated cases. Starting 2007, we conducted repeated surveys of plant distributions along mountain roads 11 regions from 5 continents. We show over 5- 10-year...
Phytophthora cinnamomi continues to cause devastating disease in Australian native vegetation and consequently the is listed by Federal Government as a process that threatening Australia’s biodiversity. Although several advances have been made our understanding of how this soil-borne pathogen interacts with plants we may tackle it natural systems, ability control limited. The occurs widely across Australia but severity its impact most evident within ecological communities south-west...
ABSTRACT Aim To investigate how species richness and similarity of non‐native plants varies along gradients elevation human disturbance. Location Eight mountain regions on four continents two oceanic islands. Methods We compared the distribution plant roads in eight mountainous regions. Within each region, abundance was recorded at 41–84 sites elevational using 100‐m 2 plots located 0, 25 75 m from roadsides. used mixed‐effects models to examine local variation were affected by processes...
Abstract Mountain ecosystems have been less adversely affected by invasions of nonnative plants than most other ecosystems, partially because invasive in the lowlands are limited climate and cannot grow under harsher high‐elevation conditions. However, with ongoing change, species may rapidly move upwards threaten mid‐, then mountain ecosystems. We evaluated this threat modeling current future habitat suitability for 48 plant Switzerland New South Wales, Australia. Both regions had...
Aim We use data from 13 mountain regions and surrounding lowland areas to identify (1) the origins, traits cultural uses of alien plant species that establish in mountains, (2) are most likely be a threat (3) how managers might this information prevent further invasions. Location Australia, Canada, Chile, India, New Zealand, South Africa, Spain, Switzerland, USA. Methods Lists were compiled for mountains their or nearby lowlands. Principal co-ordinates analysis was performed on matrix...
Roads are known to act as corridors for dispersal of plant species. With their variable microclimate, role species movement and reoccurring disturbance events, they show several characteristics that might influence range dynamics both native non‐native Previous research on ranges in mountains however seldom included the effects roads. To study how differ between roads adjacent vegetation, we used a global dataset composition along mountain We compared average elevation width species,...
Abstract Aim We investigated patterns of species richness and community dissimilarity along elevation gradients using globally replicated, standardized surveys vascular plants. asked how these diversity are influenced by anthropogenic pressures (road construction non‐native species). Location Global. Time period 2008–2015. Major taxa studied Vascular Methods Native plant were recorded in 943 plots 25 gradients, nine mountain regions, on four continents. Sampling took place away from roads....
Abstract Climate change and other global drivers threaten plant diversity in mountains worldwide. A widely documented response to such environmental modifications is for species their elevational ranges. Range shifts are often idiosyncratic difficult generalize, partly due variation sampling methods. There thus a need standardized monitoring strategy that can be applied across mountain regions assess distribution changes community turnover of native non‐native over space time. Here, we...
Mountains are one of few ecosystems little affected by plant invasions. However, the threat invasion is likely to increase because climate change, greater anthropogenic land use, and continuing novel introductions. Preventive management, therefore, will be crucial but can difficult promote when more pressing problems unresolved predictions uncertain. In this essay, we use management case studies from 7 mountain regions identify common lessons for effective preventive action. The degree in...
The fires of summer 2003 in south-eastern Australia burnt tens thousands hectares treeless alpine landscape. Here, we examine the environmental impact these fires, using data from Bogong High Plains area Victoria, and Snowy Mountains region New South Wales. Historical biophysical evidence suggests that Australian environments, extensive occur only periods extended regional drought, when severe local fire weather coincides with multiple ignitions surrounding montane forests....
Extreme abiotic conditions, geographic isolation, and low levels of disturbance have historically provided alpine, Arctic, Antarctic regions with input relative resistance to the introduction new species. However, climate is warming rapidly, concomitant intense diversified types human influence in these cold environments. Consequently, many plant species, both native nonnative, are now moving or expanding their ranges higher elevations latitudes, creating species interactions assemblages...
Context Phytophthora cinnamomi Rands is an introduced soil-borne pathogen that causes population decline in susceptible species and changes native vegetation compositions. Land managers require information about changing disease incidence, predisposing site factors potential efficiencies field identification of the disease. Previous sampling for P. southern Sydney conservation reserves has provided a framework to monitor incidence. Aims We specifically asked: (1) Is incidence intensifying,...
Among the most economically relevant and environmentally devastating diseases globally are those caused by Phytophthora species. In Australia, production losses in agriculture forestry results from several well-known cosmopolitan species infestation of natural ecosystems cinnamomi have irretrievable loss to biodiversity, especially proteaceous dominated heathlands. For this review, all available records Australia were collated curated, resulting a database 7869 records, which 2957 associated...
Context Phytophthora cinnamomi Rands is a destructive pathogen of Australian native vegetation, often causing permanent damage to ecosystems and threatening the survival rare, susceptible species. Despite that, much information about effects P. on plant species remains unpublished risk extinction most unknown. Aims We aimed classify from plants. Methods used available data personal knowledge plants, spatial distribution habitat suitability assign an extinction-risk category low, moderate,...
Abstract Conservation managers are under increasing pressure to make decisions about the allocation of finite resources protect biodiversity a changing climate. However, impacts climate and global change drivers on species outpacing our capacity collect empirical data necessary inform these decisions. This is particularly case in Australian Alps which have already undergone recent changes experienced more frequent large‐scale bushfires. In lieu data, we use structured expert elicitation...
We assessed the impact of road disturbances on dominant mycorrhizal types in ecosystems at global level and how this mechanism can potentially lead to lasting plant community changes. used a database coordinated surveys following mountain roads from 894 plots 11 regions across globe combination with an existing mycorrhizal–plant associations order approximate relative abundance natural disturbed environments. Our findings show that roadside disturbance promotes cover plants associated...