A5002786288- Fish Ecology and Management Studies
- Hydrology and Sediment Transport Processes
- Hydrology and Watershed Management Studies
- Freshwater macroinvertebrate diversity and ecology
- Flood Risk Assessment and Management
- Aquatic Invertebrate Ecology and Behavior
- Water resources management and optimization
- Marine and fisheries research
- Soil and Water Nutrient Dynamics
- Fish Biology and Ecology Studies
- Fish biology, ecology, and behavior
- Water Quality and Pollution Assessment
- Soil erosion and sediment transport
- Environmental DNA in Biodiversity Studies
- Wildlife Ecology and Conservation
- Land Use and Ecosystem Services
- Isotope Analysis in Ecology
- Water-Energy-Food Nexus Studies
- Genetic diversity and population structure
- Species Distribution and Climate Change
- Aquatic Ecosystems and Phytoplankton Dynamics
- Environmental and Social Impact Assessments
- Zoonotic diseases and public health
- Ecology and biodiversity studies
- Identification and Quantification in Food
La Trobe University
2016-2025
Griffith University
2011-2025
University of Washington
1994-2023
AstraZeneca (United Kingdom)
2023
Albury Wodonga Health
2019-2023
Arthur Rylah Institute for Environmental Research
2012-2019
Cork County Council
2019
University of California System
2019
Marine Institute
2018
Murray Darling Basin Authority
2016-2018
Summary 1. Faced with widespread degradation of riverine ecosystems, stream restoration has greatly increased. Such is rarely planned and executed inputs from ecological theory. In this paper, we seek to identify principles theory that have been, or could be, used guide restoration. 2. attempts re‐establish populations, knowledge the species’ life history, habitat template spatio‐temporal scope critical. many cases dispersal will be a critical process in maintaining viable populations at...
Southeastern Australia is presently experiencing one of the worst droughts observed in region last 200 years. The consequences drought have been far reaching both for human consumptive uses and aquatic ecosystems, serve to highlight several important aspects nature droughts, their ecological impacts, how humans respond them. Running water ecosystems are dominant form freshwater ecosystem Australia, yet, despite high frequency we lack a basic understanding long-term (as distinct from seasonal...
Summary The restoration of physical habitat has emerged as a key activity for managers charged with reversing the damage done by humans to streams and rivers, there been great expenditure time, money other resources on projects. Most projects appear assume that creation is restoring biota (‘the field dreams hypothesis’). However, in many where new clearly required if populations communities are be restored, may numerous factors cause expected link between biotic break down. We discuss five...
One of the most obvious and expected impacts climate change is a shift in distributional range organisms, which could have considerable ecological economic consequences. Australian waters are hotspots for climate-induced environmental changes; here, we review these potential changes their apparent implications freshwater, estuarine marine fish. Our meta-analysis detected <300 papers globally on ‘fish’ ‘range shifts’, with ~7% being from Australia. Of papers, only one study exhibited...
There are few quantitative predictions for the impacts of climate change on freshwater fish in Australia. We developed species distribution models (SDMs) linking historical distributions 43 from Victorian streams to a suite hydro-climatic and catchment predictors, applied these explore predicted range shifts under future climate-change scenarios. Here, we present summary results species, together with more detailed analysis subset distinct relation temperature hydrology. Range increased...
Abstract Climate change and human pressures are changing the global distribution extent of intermittent rivers ephemeral streams (IRES), which comprise half river network area. IRES characterized by periods flow cessation, during channel substrates accumulate undergo physico‐chemical changes (preconditioning), resumption, when these rewetted release pulses dissolved nutrients organic matter (OM). However, there no estimates amounts quality leached substances, nor is information on underlying...
Abstract Habitat availability is often regarded as the primary factor that limits population and community recovery in degraded ecosystems, physical habitat thus targeted restoration. The identification of which habitat(s) to attempt restore a critical step restoration process, but one for there paucity useful information. Here we examine distribution fish three lowland streams Victoria, Australia, have been by severe sedimentation. We aim identify habitats are associated with high...
SUMMARY 1. Floods are an important mechanism of disturbance operating in streams that can markedly influence the abundance and diversity benthic fauna. In upland many studies cite scouring effects fine transported sediments as a potential source to biota during spates, but few have sought test this hypothesis critically. 2. Here we used series eight artificial whether high suspended‐sediment concentrations influenced short‐term response invertebrate fauna increases flow. experiment designed...
1. Maternal reproductive investment is thought to reflect a trade-off between offspring size and fecundity, models generally predict that mothers inhabiting adverse environments will produce fewer, larger offspring. More recently, the importance of environmental unpredictability in influencing maternal has been considered, with some predicting should adopt diversified bet-hedging strategy whilst others conservative strategy. 2. We explore spatial egg fecundity patterns freshwater fish...
Biotic communities are shaped by adaptations from generations of exposure to selective pressures recurrent and often infrequent events. In large rivers, floods can act as significant agents change, causing considerable physical biotic disturbance while enhancing productivity diversity. We show that the relative balance between these seemingly divergent outcomes be explained rhythmicity, or predictability timing magnitude, flood By analyzing biological data for rivers span a gradient...
Many aquatic ecosystems have been severely degraded by water-resource development affecting flow regimes and biological connectivity. Freshwater fish particularly affected these changes climate change will place further stress on them. The Murray–Darling Basin (MDB), Australia, represents a highly system with dramatically modified regimes. This has impaired the health of its rivers, potentially limited adaptive capacity biota to respond changing climate. Here, we present our predictions...
Summary In many intermittent, dryland rivers, fish are confined to isolated waterholes for much of the year. It is only during brief flow events, which typify hydrology these systems, that able move between and explore surrounding habitat. Because most river channel will dry afterwards, there a strong advantage selection persistent waterholes. Two hundred fifteen individual three common large‐bodied species were tagged in two Moonie River (Queensland, Australia) over 3 years. Their movements...
Abstract Intermittent rivers and ephemeral streams (IRES) may represent over half the global stream network, but their contribution to respiration carbon dioxide (CO 2 ) emissions is largely undetermined. In particular, little known about variability drivers of in IRES sediments upon rewetting, which could result large pulses CO . We present a study examining from 200 dry reaches spanning multiple biomes. Results standardized assays show that mean increased 32‐fold 66‐fold sediment...
Abstract Climate change will increase water stress in many regions placing greater pressures on rivers to meet human and ecological needs. Managing experiencing requires a fundamental understanding of how ecosystem processes functions respond natural anthropogenic drivers flow variability change. The field environmental flows meets this need by defining “flow-ecology” relationships—mathematical models linking characteristics dynamics the underlying regime. However, because these...