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Article: Jensen’s Inequality and the Impact of Short-term Environmental Variability on Long-term Population Growth Rates

TitleJensen’s Inequality and the Impact of Short-term Environmental Variability on Long-term Population Growth Rates
Authors
Issue Date2015
Citation
PLoS One, 2015, v. 10 n. 9, p. e0136072 How to Cite?
AbstractIt is well established in theory that short-term environmental fluctuations could affect the long-term growth rates of wildlife populations, but this theory has rarely been tested and there remains little empirical evidence that the effect is actually important in practice. Here we develop models to quantify the effects of daily, seasonal, and yearly temperature fluctuations on the average population growth rates, and we apply them to long-term data on the endangered Black-faced Spoonbill (Platalea minor); an endothermic species whose population growth rates follow a concave relationship with temperature. We demonstrate for the first time that the current levels of temperature variability, particularly seasonal variability, are already large enough to substantially reduce long-term population growth rates. As the climate changes, our results highlight the importance of considering the ecological effects of climate variability and not just average conditions.
Persistent Identifierhttp://hdl.handle.net/10722/220476
ISSN
2015 Impact Factor: 3.057
2015 SCImago Journal Rankings: 1.395
ISI Accession Number ID
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DC FieldValueLanguage
dc.contributor.authorPickett, EJ-
dc.contributor.authorThomson, DL-
dc.contributor.authorLI, T-
dc.contributor.authorXING, S-
dc.date.accessioned2015-10-16T06:43:24Z-
dc.date.available2015-10-16T06:43:24Z-
dc.date.issued2015-
dc.identifier.citationPLoS One, 2015, v. 10 n. 9, p. e0136072-
dc.identifier.issn1932-6203-
dc.identifier.urihttp://hdl.handle.net/10722/220476-
dc.description.abstractIt is well established in theory that short-term environmental fluctuations could affect the long-term growth rates of wildlife populations, but this theory has rarely been tested and there remains little empirical evidence that the effect is actually important in practice. Here we develop models to quantify the effects of daily, seasonal, and yearly temperature fluctuations on the average population growth rates, and we apply them to long-term data on the endangered Black-faced Spoonbill (Platalea minor); an endothermic species whose population growth rates follow a concave relationship with temperature. We demonstrate for the first time that the current levels of temperature variability, particularly seasonal variability, are already large enough to substantially reduce long-term population growth rates. As the climate changes, our results highlight the importance of considering the ecological effects of climate variability and not just average conditions.-
dc.languageeng-
dc.relation.ispartofPLoS One-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleJensen’s Inequality and the Impact of Short-term Environmental Variability on Long-term Population Growth Rates-
dc.typeArticle-
dc.identifier.emailPickett, EJ: epickett@hku.hk-
dc.identifier.emailThomson, DL: dthomson@hku.hk-
dc.identifier.authorityThomson, DL=rp00788-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1371/journal.pone.0136072-
dc.identifier.pmid26352857-
dc.identifier.hkuros255607-
dc.identifier.volume10-
dc.identifier.issue9-
dc.identifier.spagee0136072-
dc.identifier.epagee0136072-
dc.identifier.isiWOS:000360932800023-
dc.relation.projectStochastic Population Growth and the Ecological Impact of Increased Fluctuations in Climate-

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