A5083984112- Coral and Marine Ecosystems Studies
- Marine and fisheries research
- Marine and coastal plant biology
- Ichthyology and Marine Biology
- Amphibian and Reptile Biology
- Marine Ecology and Invasive Species
- Fish Ecology and Management Studies
- Marine Biology and Ecology Research
- Wildlife Ecology and Conservation
- Marine Invertebrate Physiology and Ecology
- Cephalopods and Marine Biology
- Legume Nitrogen Fixing Symbiosis
- Botany and Plant Ecology Studies
- Species Distribution and Climate Change
- Plant Pathogens and Fungal Diseases
- Marine animal studies overview
- Plant Pathogenic Bacteria Studies
- Plant and Fungal Species Descriptions
- Turtle Biology and Conservation
- Coastal wetland ecosystem dynamics
- Peatlands and Wetlands Ecology
- Animal Behavior and Reproduction
- Genetic diversity and population structure
- Marine Biology and Environmental Chemistry
- Aquaculture Nutrition and Growth
Southern Cross University
2014-2024
Google (United States)
2022
Austin Peay State University
2004-2021
University of Strathclyde
1971-1989
Royal College of Physicians and Surgeons of Canada
1983
Amphibians are declining globally, and efforts underway to establish long‐term programs monitor population trends. Because researchers constrained sampling a small subset of populations that occur across landscape, monitoring units should be selected maximize the statistical independence responses environmental stressors. Breeding sites pond‐breeding amphibians often clustered locally, habitat switching between neighboring ponds could significantly compromise both demographic independence....
Abstract Species’ distributions will respond to climate change based on the relationship between local demographic processes and how this varies range position. A rarely tested prediction is that populations at extremes of a species’ envelope (e.g., in areas with highest mean annual temperature) be most sensitive shifts (i.e., warming). We using dynamic species distribution model linking rates variation temperature precipitation for wood frogs ( Lithobates sylvaticus ) North America. Using...
The potential influence of microplastic debris on marine organisms is an issue great ecological and socioeconomic concern. Experiments exposing fishes invertebrates to constant concentrations microplastics often yield high variation in particle ingestion rates among individuals. Yet, despite increasing interest the wild, intrinsic drivers inter-individual have received little attention so far. Here we assessed individual-level Polyethylene microspheres by laboratory-reared juvenile...
Abstract The mutualism between clownfishes (or anemonefishes) and their giant host sea anemones are among the most immediately recognizable animal interactions on planet have attracted a great deal of popular scientific attention [1-5]. However, our evolutionary understanding this iconic symbiosis comes almost entirely from studies clownfishes— charismatic group 28 described species in genus Amphiprion [2]. Adaptation to venomous (Anthozoa: Actiniaria) provided with novel habitat space,...
Understanding the population dynamics of host sea anemones and their symbiotic anemonefish is important given that pressures such as aquarium collecting bleaching events are adversely impacting abundance in some Indo–Pacific locations. We examined long-term trends anemone at four sites within a ‘no-take’ zone North Solitary Island, Australia, by comparing data from 2008 to surveys done 1994 1995. Species richness was stable, comprising two anemones, Entacmaea quadricolor Heteractis crispa,...
Abstract Severe coral bleaching events have affected the GBR causing massive losses of hard cover. Here we use flow respirometry approaches to assess reef net ecosystem calcification (NEC) and production following 2015/2016 event at Lizard Island in northern Great Barrier Reef, a heavily impacted area. Previous studies conducted 2008 2009 (Silverman et al., 2014, http://10.1016/j.gca.2014.09.011 ) were used as preimpact data. Lagrangian Eulerian provided varied results. Estimated NEC (29.1...
Understanding how bleaching impacts the settlement of symbiotic habitat specialists and whether there is flexibility in choices with regard to quality essential given our changing climate. We used five anemonefishes (Amphiprion clarkii, Amphiprion latezonatus, ocellaris, percula Premnas biaculeatus) three host sea anemones (Entacmaea quadricolor, Heteractis crispa magnifica) paired-choice flume experiments determine naive juveniles have olfactory capabilities distinguish between unbleached...
Abstract Ocean warming is causing the symbioses between cnidarians and their algal symbionts to breakdown more frequently, resulting in bleaching. For sea anemones, nutritional benefits derived from hosting anemonefishes increase symbiont density. The anemone-anemonefish relationship could, therefore, facilitate bleaching recovery. To test this, bleached unbleached both with without anemonefish, were monitored laboratory. At start of our experiment, density colour score lower than whereas...
Anemonefishes and their host sea anemones form an iconic symbiotic association in reef environments, are highly sought after the marine aquarium trade. This study examines asexual propagation as a method for culturing geographically widespread commonly traded species of anemone, Entacmaea quadricolor. Two experiments were done: first to establish whether size or colour morph influenced survival cutting into halves quarters; second see feeding was needed maximise growth cutting. Survival...
Little information is available on the sexual reproductive biology of anemones that provide essential habitat for anemonefish. Here we first surface ultrastructural and morphological changes during development embryos planula larvae Entacmaea quadricolor Heteractis crispa, using light scanning electron microscopy. Newly spawned eggs E. H. crispa averaged 794 μm 589 diameter, respectively, were covered by many spires microvilli evenly distributed over egg surface, except a single bare patch....
Abstract Understanding the movement of marine predators is vital for effective conservation and management. Despite being targeted by shark control programs, tiger shark, Galeocerdo cuvier, poorly studied off eastern Australia. To investigate horizontal habitat use in this region, 16 sharks (157–384 cm total length) were tagged with MiniPAT pop-up satellite archival tags 2018 2019. Eleven these individuals also fitted satellite-linked radio transmitting tags. After release, most moved...
The dendroid colleters of the leaf nodulated Rubiaceous shrub Psychotria kirkii Hiern. have been studied with respect to their development, structure and function. colleters, which arise from adaxial surface stipules apical lateral shoots, secrete a protein/carbohydrate mucilaginous substance in is maintained colony nodule bacteria. are multicellular multiseriate, consisting two four cell thick stalk radiate up 70 elongate secretory branch cells. Cuticle envelops both cells early...
Summary As the sea anemones, Entacmaea quadricolor and Heteractis crispa, provide essential habitat for obligate symbiotic anemonefish, knowledge of their reproductive biology is crucial to effective management conservation. This paper provides first detailed information on spawning times, behaviour mode gamete release these host anemone species. Anemones were collected from subtropical reefs in Solitary Islands Marine Park, eastern Australia, monitored outdoor flow-through seawater tanks...