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Full-Text Articles in Life Sciences

Recurrent Sublethal Warming Reduces Embryonic Survival, Inhibits Juvenile Growth, And Alters Species Distribution Projections Under Climate Change, Michael A. Carlo, Eric A. Riddell, Ofir Levy, Michael W. Sears Nov 2017

Recurrent Sublethal Warming Reduces Embryonic Survival, Inhibits Juvenile Growth, And Alters Species Distribution Projections Under Climate Change, Michael A. Carlo, Eric A. Riddell, Ofir Levy, Michael W. Sears

Publications

The capacity to tolerate climate change often varies across ontogeny in organisms with complex life cycles. Recently developed species distribution models incorporate traits across life stages; however, these life-cycle models primarily evaluate effects of lethal change. Here, we examine impacts of recurrent sublethal warming on development and survival in ecological projections of climate change. We reared lizard embryos in the laboratory under temperature cycles that simulated contemporary conditions and warming scenarios. We also artificially warmed natural nests to mimic laboratory treatments. In both cases, recurrent sublethal warming decreased embryonic survival and hatchling sizes. Incorporating survivorship results into a mechanistic species …


Reproductive Performance Of The Marine Green Porcelain Crab Petrolisthes Armatus Gibbes, 1850 In Its Introduced Range Favors Further Range Expansion, Ann Wassick, J. Antonio Baeza, Amy Fowler, Dara Wilber Oct 2017

Reproductive Performance Of The Marine Green Porcelain Crab Petrolisthes Armatus Gibbes, 1850 In Its Introduced Range Favors Further Range Expansion, Ann Wassick, J. Antonio Baeza, Amy Fowler, Dara Wilber

Publications

Invasive marine crustaceans can exhibit population-level variation in reproductive traits that are consistent with a response to stressful conditions near the range edge, or alternatively, that may favor establishing new exotic populations. Reproductive characteristics of the green porcelain crab Petrolisthes armatus Gibbes, 1850 were not previously known in its invasive range in the Atlantic waters of the southeastern USA. We compared fecundity estimates, size at sexual maturity, and various other morphological aspects among crabs collected from two sites at each of four locations spanning approximately 230 km from North Inlet, South Carolina (SC), to Savannah, Georgia (GA), USA. Reproductive output …