Cold-related Florida manatee mortality in relation to air and water temperatures

Stacie K Hardy, Charles J Deutsch, Tiffanie A Cross, Martine de Wit and Jeffrey A Hostetler

PLOS ONE, 2019, vol. 14, issue 11, 1-22

Abstract: Many tropical and subtropical species are sensitive to sudden temperature changes, especially drops in temperature. During winters 2009–2010 and 2010–2011, unusually cold temperatures occurred in many parts of Florida, USA, resulting in increased mortality of Florida manatees, sea turtles, fish, corals, and other species. The Florida manatee, in particular, is highly susceptible to cold stress and death when water temperatures drop below 20°C. We sought to characterize the magnitude and timing of reports of cold-related manatee carcasses in relation to fluctuations in water and air temperatures in central-east and central-west Florida during the six winters from 2008 to 2014. We used a generalized linear model to predict counts of manatee carcasses with a cold-related cause of death reported over 7-day bins in relation to various short-term (two weeks or less) and cumulative (incrementally summed from the start of the winter) heating-degree-day effects (HDD;

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0225048

DOI: 10.1371/journal.pone.0225048

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