ORCID Profile
0000-0002-7775-4383
Current Organisations
University of South Australia
,
Hong Kong University of Science and Technology
,
Swarthmore College
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Publisher: Oxford University Press (OUP)
Date: 10-08-2018
Abstract: Many marine organisms have a multi-phase life history and rely on their planktonic larvae for dispersal. Despite the important role of larvae in shaping population distribution and abundance, the chemical, physical, and biological factors that shape larval fate are still not fully understood. Shedding light into this larval dispersal “black box” has become critical in the face of global climate change, primarily due to the importance of larval dispersal in formulating sound conservation and management strategies. Focusing on two major stressors, warming and acidification, we highlight the limitations of the current species-by-species, lab-based study approach, and particularly the lack of consideration of the larval experience along the dispersive pathway. Measuring organismal responses to environmentally relevant climate change stress demands an improved documentation of the physical and biological conditions that larvae experience through ontogeny, which in turn requires updated empirical and theoretical approaches. While there are meaningful between taxa comparisons to be made by larval ecologists, to peek into the dispersal black box and to investigate the larger scale consequences of altered dispersal requires innovative collaborations between ecologists, oceanographers, molecular biologists, statisticians, and mathematicians.
Publisher: Queensland University of Technology
Date: 13-07-2023
DOI: 10.5204/SSJ.2883
Abstract: Starting university is challenging. Students require resilience to face the inevitable challenges of university life, yet many may not be equipped with the strategies they need. In this research, we explored changes in resilience following the delivery of a resilience building module within a core first-year university course. Psychology students at the University of South Australia completed the adapted Resilience at Work Scale at two separate time points and undertook a resilience building module. Pre- and post-scores were obtained for students’ resilience (n = 205 n = 100 respectively) overall and components. On average, students had good levels of resilience at commencement, yet scores increased significantly across most components following completion of the module. Additionally, students who reported implementing resilience strategies experienced significantly higher score increases than their peers who did not. These findings hold important implications for staff across universities in relation to embedding resilience building programs into curriculum.
Publisher: Wiley
Date: 06-07-2021
Abstract: Predictions of ectotherms' responses to global warming depend on the relationship between environmental temperature and organismal performance. To date, most predictions of thermal responses are generated from experimentally derived measures of thermal tolerances of adults or estimates of thermal niches derived from geographic distributions of adults. It is unknown how measures derived from these different approaches compare, or, as thermal performance of ectotherms varies through ontogeny, how they compare across life stages. To understand the efficacy of the temperature–performance relationship of early developmental stages as predictors of geographic range, we empirically documented the upper and lower thermal tolerance limits of embryos of eight species of ectotherms with complex life cycles. We compared the embryonic thermal tolerances of each species to that of the adults (documented in a previous study), as well as to an estimate of the thermal niche derived from adult distributions. Our results show that in all eight species the upper thermal limit estimated from embryos is significantly lower than the upper thermal limit estimated from adults. The lower thermal limit for embryos and for adult performance are similar, but the lower thermal limit for adult survival is significantly lower. Warming tolerances, calculated as the difference between upper tolerance limit and the average ambient temperature during the warmest month, for each species are also smaller for embryos (~1°C) than for adults (~5°C). These results show that thermal tolerances of early developmental stages, which are often easier to obtain for large s le sizes over an array of temperatures than are tolerances of adults, are a powerful, and potentially more accurate tool for predicting future responses to climate change. A free Plain Language Summary can be found within the Supporting Information of this article.
Publisher: Wiley
Date: 12-05-2019
DOI: 10.1111/IVB.12242
No related grants have been discovered for Kit Yu Karen Chan.