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Developmental Cost Theory Predicts Thermal Environment and Vulnerability to Global Warming by Marshall, Dustin J.; Pettersen, Amanda K.; Bode, Michael; White, Craig R. is a Environmental Science article available to read on EtoBox.

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Metazoans must develop from zygotes to feeding organisms. In doing so, developing offspring consume up to 60% of the energy provided by their parent. The cost of development depends on two rates: metabolic rate, which determines the rate that energy is used; and developmental rate, which determines the length of the developmental period. Both development and metabolism are highly temperature-dependent such that developmental costs should be sensitive to the local thermal environment. Here, we develop, parameterize and test developmental cost theory, a physiologically explicit theory that reveals that ectotherms have narrow thermal windows in which developmental costs are minimized (T). Our developmental cost theory-derived estimates of T predict the natural thermal environment of 71 species across seven phyla remarkably well (R ~0.83). Developmental cost theory predicts that costs of development are much more sensitive to small changes in temperature than classic measures such as survival. Warming-driven changes to developmental costs are predicted to strongly affect population replenishment and developmental cost theory provides a mechanistic foundation for determining which speci

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Author

Marshall, Dustin J.; Pettersen, Amanda K.; Bode, Michael; White, Craig R.

Publisher

Springer Science and Business Media LLC; Nature Publishing Group (ISSN 2397-334X)

Published

2020

Language

EN

Field

Environmental Science (Physical Sciences)