Evan Byrnes

Evan Byrnes
Simon Fraser University

PhD
Behvioural and Physiological Ecologist

About

15
Publications
3,395
Reads
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171
Citations
Citations since 2016
15 Research Items
170 Citations
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2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
Additional affiliations
February 2016 - May 2016
Macquarie University
Position
  • Research Assistant
Description
  • Teaching assistant for vertebrate evolution course
October 2015 - present
Macquarie University
Position
  • Research Assistant
Education
February 2014 - April 2016
Macquarie University
Field of study
  • Animal behaviour
August 2008 - May 2012
University of Miami
Field of study
  • Marine Science & Biology

Publications

Publications (15)
Article
Full-text available
Diving behaviour of ‘surfacers' such as sea snakes, cetaceans and turtles is complex and multi-dimensional, thus may be better captured by multi-sensor biologging data. However, analysing these large multi-faceted datasets remains challenging, though a high priority. We used high-resolution multi-sensor biologging data to provide the first detailed...
Article
Full-text available
Urban river catchments are often severely affected by human activities but may still retain significant biodiversity. Surprisingly little is known about the behaviour of urban fishes, even those popular with anglers. Key environmental variables that trigger fish behaviour, such as river flow, are highly affected by instream structures including wei...
Article
Dynamic Body Acceleration (DBA), measured through animal-attached tags, has emerged as a powerful method for estimating field metabolic rates of free-ranging individuals. Following respirometry to calibrate oxygen consumption rate ( M O 2 ) with DBA under controlled conditions, predictive models can be applied to DBA data collected from free-rangin...
Article
Full-text available
How animals partition activity throughout the day is influenced by processes that affect supply and obtainability of resources. However, as resource supply and usability are often entrained by the same diurnal pattern, it has been difficult to disentangle their relative importance. Given the strong influence that tide has on the distribution and ac...
Article
Understanding how the movement and habitat use of fishes are influenced by flow regimes is important in sustainably managing river ecosystems, particularly in regions undergoing drying due to climate change. Here, we aimed to determine how the movement of a freshwater fish from refuge pools is influenced by discharge and environmental variables in...
Preprint
Life history, reproduction, and survival are fundamentally linked to energy expenditure and acquisition. Dynamic Body Acceleration (DBA), measured through animal-attached data-loggers or transmitters, has emerged as a powerful method for estimating field metabolic rates of free-ranging individuals. After using respirometry to calibrate oxygen consu...
Article
Full-text available
Environments where extreme temperatures and low productivity occur introduce energetically challenging circumstances that may be exacerbated by climate change. Despite the strong link between metabolism and temperature in ectotherms, there is a paucity of data regarding how the metabolic ecology of species affects growth and fitness under such circ...
Article
This study developed a portable, low-cost field respirometer for measuring oxygen consumption rates of large-bodied fishes. The respirometer performed well in laboratory tests and was used to measure the oxygen consumption rates ( M ˙ O2 ) of bull sharks Carcharhinus leucas (mean: 249.21 ± 58.10 mg O2 kg-1 h-1 at 27.05°C). Interspecific compari...
Article
Full-text available
Two specimens of the marine leech Pontobdella macrothela were found parasitizing the carcharhinid shark, Negaprion acutidens, at St. Joseph Atoll, Amirantes, Republic of Seychelles. This report presents the first record of this piscicolid leech from N. acutidens and is one of the few records of P. macrothela in the West Indian Ocean.
Article
Full-text available
Predation is one of the most fundamental and unifying concepts in ecology, and we are beginning to obtain a more complete understanding of how predators drive community structure and ecosystem function through their impacts on prey. We know considerably less about how predators affect each other through intraguild interactions, which is surprising...
Article
The field of animal personality has received considerable attention in past decades, yet few studies have examined personality in the wild. This study investigated docility, a measure of boldness, in two Port Jackson shark (Heterodontus portusjacksoni) populations using field tests, and if laterality differences explained docility levels. We develo...
Article
Full-text available
This study examined interindividual personality differences between Port Jackson sharks Heterodontus portusjacksoni utilizing a standard boldness assay. Additionally, the correlation between differences in individual boldness and stress reactivity was examined, exploring indications of individual coping styles. Heterodontus portusjacksoni demonstra...
Article
Cerebral lateralization is an evolutionarily deep-rooted trait, ubiquitous among the vertebrates and present even in some invertebrates. Despite the advantages of cerebral lateralization in enhancing cognition and facilitating greater social cohesion, large within population laterality variation exists in many animal species. It is proposed that th...

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Projects

Projects (2)
Project
The aim of this project is to determine how body size influences energetic needs of sicklefin lemon sharks (Negaprion acutidens) and how these size associated energetic changes constrain home range size and habitat use.