A5089937529- Animal Behavior and Reproduction
- Fish Ecology and Management Studies
- Amphibian and Reptile Biology
- Plant and animal studies
- Coral and Marine Ecosystems Studies
- Wildlife Ecology and Conservation
- Marine and fisheries research
- Marine animal studies overview
- Physiological and biochemical adaptations
- Species Distribution and Climate Change
- Animal Vocal Communication and Behavior
- Ocean Acidification Effects and Responses
- Aquaculture disease management and microbiota
- Aquatic Invertebrate Ecology and Behavior
- Neuroendocrine regulation and behavior
- Selenium in Biological Systems
- Zebrafish Biomedical Research Applications
- Genetic diversity and population structure
- Freshwater macroinvertebrate diversity and ecology
- Reproductive biology and impacts on aquatic species
- Environmental Toxicology and Ecotoxicology
- Ichthyology and Marine Biology
- Mercury impact and mitigation studies
- Animal and Plant Science Education
- Hemispheric Asymmetry in Neuroscience
University of Saskatchewan
2016-2025
Google (United States)
2009-2018
Minnesota State University Moorhead
2010
Parks Canada
2009
University of Maine
1997-2001
Union College
2001
Concordia University
2001
Oregon State University
1996-2000
Pepperdine University
2000
Pennsylvania State University
2000
There is increasing concern that ocean acidification, caused by the uptake of additional CO 2 at surface, could affect functioning marine ecosystems; however, mechanisms which population declines will occur have not been identified, especially for noncalcifying species such as fishes. Here, we use a combination laboratory and field-based experiments to show levels dissolved predicted in this century alter behavior larval fish dramatically decrease their survival during recruitment adult...
Noise-generating human activities affect hearing, communication and movement in terrestrial aquatic animals, but direct evidence for impacts on survival is rare. We examined effects of motorboat noise post-settlement physiology a prey fish species its performance when exposed to predators. Both playback disturbance by motorboats elevated metabolic rate Ambon damselfish (Pomacentrus amboinensis), which stressed responded less often rapidly simulated predatory strikes. Prey were captured more...
Prey species possess a variety of morphological, life history and behavioural adaptations to evade predators. While specific evolutionary conditions have led the expression permanent, non-plastic anti-predator traits, vast majority prey rely on experience express adaptive defences. ecologists identified highly sophisticated means through which naive can deal with predation threats, potential for death upon first encounter predator is still remarkably important unresolved issue. Here, we used...
The cytotoxic T-lymphocyte antigen-4 (CTLA4) is essential in controlling T cell activity within the immune system. Thus, uncovering molecular dynamics of single nucleotide polymorphisms (SNPs) CTLA4 gene critical. We identified non-synonymous SNPs (nsSNPs), examined their impact on protein stability, and sequences associated with them human gene. There were 3134 (rsIDs) our study. Out these, 186 missense variants (5.93%), 1491 intron (47.57%), 91 synonymous (2.90%), while remaining...
We exposed groups of four fathead minnows (Pimephales promelas) that were familiar to each other and had been taken from naturally occurring shoals, fish unfamiliar other, separate either chemical stimuli pike or a model predator (northern pike, Esox lucius). In response both the model, showed greater shoal cohesion than those groups. Tighter should result in higher probability surviving an encounter with predator. Fish shoals also exhibited more dashing, known antipredator response,...
While some prey species possess an innate recognition of their predators, others require learning to recognize predators. The specific characteristics the predators that learn and whether can generalize this similar predatory threats have been virtually ignored. Here, we investigated fathead minnows learned chemically a predator as threat has ability closely related We found trained odour lake trout (the reference predator) generalized responses brook (same genus trout) rainbow family), but...
In this study we tested whether brook trout (Salvelinus fontinalis) can learn to recognise predators through releaser-induced recognition learning and enhances survival of during encounters with a predator. our initial experiment, exposed hatchery-reared predator-naïve chemical stimuli from predatory chain pickerel (Esox niger) paired alarm signals released by damaged trout, disturbance signals, or distilled water. subsequent tests 24 h later, when only odour was presented, conditioned...
There has been a great deal of recent attention on the suspected increase in amphibian deformities. However, most reports deformities have anecdotal, and no experiments field under natural conditions performed to investigate this phenomenon. Under laboratory conditions, variety agents can induce amphibians. We investigated one these agents, UV-B radiation, experiments, as cause for monitored hatching success development long-toed salamanders shields regimes that allowed radiation. Embryos...
Abstract Our planet is experiencing an increase in the concentration of atmospheric carbon dioxide (CO 2 ) unprecedented past 800 000 years. About 30% excess CO absorbed by oceans, thus increasing carbonic acid and reducing ocean's pH. Species able to survive physiological stress imposed ocean acidification may still suffer strong indirect negative consequences. Comparing tolerance different species dissolved a necessary first step towards predicting ecological impacts rising levels on...
Ocean acidification is one of the most pressing environmental concerns our time, and not surprisingly, we have seen a recent explosion research into physiological impacts ecological consequences changes in ocean chemistry. We are gaining considerable insights from this work, but further advances require greater integration across disciplines. Here, showed that projected near-future CO2 levels impaired ability damselfish to learn identity predators. These effects stem neurotransmitter...
A wide variety of organisms possess damage-released alarm pheromones that evoke antipredator responses in conspecifics. Understanding the evolution such involuntary signals has been perplexing because it is difficult to see direct benefits sender, notwithstanding derived from warning relatives. Recently, proposed pheromone, or Schreckstoff, Ostariophysan fishes may function a fashion analogous distress calls many birds and mammals. The pheromone attract secondary predators proximity primary...
Young‐of‐the‐year, predator‐naive fathead minnows, Pimephales promelas , from a pikesympatric population did not respond to chemical stimuli northern pike, Esox Indus while wild‐caught fish of the same age and size did. These results suggest that predator recognition is result previous experience genetic factors, Wild young‐of‐the‐year minnows responded pike odour with response intensity was similar older fish, demonstrating ability recognize predators learned within first year. The wild...
Many fishes possess specialized epidermal cells that are ruptured by the teeth of predators, thus reliably indicating presence an actively foraging predator. Understanding evolution these has intrigued evolutionary ecologists because release alarm chemicals is not voluntary. Here, we show predation pressure does influence cell production in fishes. Alarm stimulated exposure to skin-penetrating pathogens (water moulds: Saprolegnia ferax and parasitica), parasites (larval trematodes:...
Ocean acidification has the potential to cause dramatic changes in marine ecosystems. Larval damselfish exposed concentrations of CO2 predicted occur mid- late-century show maladaptive responses predator cues. However, there is considerable variation both within and between species effects, whereby some individuals are unaffected at particular while others odour. Our goal was test whether learning via chemical or visual information would be impaired by ocean ultimately, can mitigate effects...
Determining how prey learn the identity of predators and match their vigilance with current levels threat is central to understanding dynamics predator-prey systems determinants fitness. Our study explores feeding history influences relative importance olfactory visual sensory modes learning, experience gained through these behaviour survival in field for a juvenile coral reef damselfish. We collected young fish immediately prior settlement benthic habitats. In laboratory, predator-naïve...