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Proceedings of the Royal Society B: Biological Sciences
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Population effects of increased climate variation

Published:19 July 2005https://doi.org/10.1098/rspb.2005.3148

    Abstract

    Global circulation models predict and numerous observations confirm that anthropogenic climate change has altered high-frequency climate variability. However, it is not yet well understood how changing patterns of environmental variation will affect wildlife population dynamics and other ecological processes. Theory predicts that a population's long-run growth rate is diminished and the chance of population extinction is increased as environmental variation increases. This results from the fact that population growth is a multiplicative process and that long-run population growth rate is the geometric mean of growth rates over time, which is always less than the arithmetic mean. However, when population growth rates for unstructured populations are related nonlinearly to environmental drivers, increasing environmental variation can increase a population's long-run growth rate. This suggests that patterns of environmental variation associated with different aspects of climate change may affect population dynamics in different ways. Specifically, increasing variation in rainfall might result in diminished long-run growth rates for many animal species while increasing variation in temperature might result in increased long-run growth rates. While the effect of rainfall is theoretically well understood and supported by data, the hypothesized effect of temperature is not. Here, I analyse two datasets to study the effect of fluctuating temperatures on growth rates of zooplankton. Results are consistent with the prediction that fluctuating temperatures should increase long-run growth rates and the frequency of extreme demographic events.

    References

    • Ayres M.P& Scriber J.M. 1994Local adaptation to regional climates in Papilio canadensis (Lepidoptera: Papilionidae). Ecol. Monogr. 64, 465–482. Crossref, ISI, Google Scholar
    • Berryman A.A. 2004Limiting factors and population regulation. Oikos. 105, 667–670. Crossref, ISI, Google Scholar
    • Burnham K.P& Anderson D.RModel selection and multimodel inference. 2nd edn.2002New York:Springer. Google Scholar
    • Beck S.D. 1983Insect thermoperiodism. Annu. Rev. Entomol. 28, 91–108. Crossref, ISI, Google Scholar
    • Brakefield P.M& Kesbeke F. 1997Genotype–environment interactions for insect growth in constant and fluctuating temperature regimes. Proc. R. Soc. B. 264, 717–723.doi:10.1098/rspb.1997.0102. . Link, ISI, Google Scholar
    • Cohen J.E. 1980Convexity properties of products of random nonnegative matrices. Proc. Natl Acad. Sci. USA. 77, 3749–3752. Crossref, PubMed, ISI, Google Scholar
    • Davis S.A, Pech R.P& Catchpole E.A. 2002Populations in variable environments: the effect of variability in a species' primary resource. Phil. Trans. R. Soc. B. 357, 1249–1257.doi:10.1098/rstb.2002.1125. . Link, ISI, Google Scholar
    • Easterling D.R, Meehl G.A, Parmesan C, Changnon S.A, Karl T.R& Mearns L.O. 2000Climate extremes: observations, modeling, and impacts. Science. 289, 2068–2074. Crossref, PubMed, ISI, Google Scholar
    • Efford M. 2001Environmental stochasticity cannot save declining populations. Trends Ecol. Evol. 16, 177. Crossref, ISI, Google Scholar
    • Fang J, Piao S, Tang Z, Peng C, Ji W, Knapp A.K& Smith M.D. 2001Interannual variability in net primary production and precipitation. Science. 293, 1723a. Crossref, PubMed, ISI, Google Scholar
    • Gillooly J.F. 2000Effects of body size and temperature on generation time in zooplankton. J. Plankton Res. 22, 241–251. Crossref, ISI, Google Scholar
    • Gillooly J.F& Dodson S.I. 2000The relationship of neonate mass and incubation temperature to embryonic development time in a range of animal taxa. J. Zool. Soc. Lond. 251, 369–375. Crossref, ISI, Google Scholar
    • Gillooly J.F, Charnov E.L, West G.B, Savage V.M& Brown J.H. 2002Effect of size and temperature on development time. Nature. 417, 70–73. Crossref, PubMed, ISI, Google Scholar
    • Groisman P.Y, et al.1999Changes in the probability of heavy precipitation: important indicators of climate change. Clim. Change. 42, 243–283. Crossref, ISI, Google Scholar
    • Higgins S.I, Pickett S.T.A& Bond W.J. 2000Predicting extinction risk for plants: environmental stochasticity can save declining populations. Trends Ecol. Evol. 15, 516–520. Crossref, PubMed, ISI, Google Scholar
    • Huntley M.E& Lopez M.D.G. 1992Temperature-dependent production of marine copepods: a global synthesis. Am. Nat. 140, 201–242. Crossref, PubMed, ISI, Google Scholar
    • Joshi D.S. 1996Effects of fluctuating and constant temperatures on development, adult longevity and fecundity in the mosquito Aedes krombeini. J. Therm. Biol. 21, 151–154. Crossref, ISI, Google Scholar
    • Karl T.R, Knight R.W& Plummer N. 1995Trends in high-frequency climate variability in the twentieth century. Nature. 377, 217–220. Crossref, ISI, Google Scholar
    • Knapp A.K& Smith M.D. 2001Variation among biomes in temporal dynamics of aboveground primary production. Science. 291, 481–484. Crossref, PubMed, ISI, Google Scholar
    • Knapp A.K, et al.2002Rainfall variability, carbon cycling, and plant species diversity in a mesic grassland. Science. 298, 2202–2205. Crossref, PubMed, ISI, Google Scholar
    • Lande R, Engen S& Sæther B.-EStochastic population dynamics in ecology and conservation. 2003Oxford University Press. Google Scholar
    • Levine J.M& Rees M. 2004Affects of temporal variability on rare plant persistence in annual systems. Am. Nat. 164, 350–363. Crossref, PubMed, ISI, Google Scholar
    • Lewontin R.CBuilding a science of population biology. The evolution of population biology, Singh R.S& Uyenoyama M.K. 2003Cambridge University Press. Google Scholar
    • Lewontin R.C& Cohen D. 1969On population growth in a randomly varying environment. Proc. Natl Acad. Sci. USA. 62, 1056–1060. Crossref, PubMed, ISI, Google Scholar
    • McCullough P& Nelder J.AGeneralized linear models. 2nd edn.1989New York:Chapman & Hall. Google Scholar
    • McLaughlin J.F, Hellmann J.J, Boggs C.L& Ehrlich P.R. 2002Climate change hastens population extinction. Proc. Natl Acad. Sci. USA. 99, 6070–6074. Crossref, PubMed, ISI, Google Scholar
    • Nemani R.R, et al.2003Climate-driven increases in global terrestrial net primary production from 1982 to 1999. Science. 300, 1560–1563. Crossref, PubMed, ISI, Google Scholar
    • Pásztor L& Kisdi E. 2000Jensen's inequality and optimal life history strategies in stochastic environments. Trends Ecol. Evol. 15, 117–118. Crossref, PubMed, ISI, Google Scholar
    • Royama T. 1977Population persistence and density dependence. Ecol. Monogr. 47, 1–35. Crossref, ISI, Google Scholar
    • Ruel J.J& Ayres M.P. 1999Jensen's inequality predicts effects of environmental variation. Trends Ecol. Evol. 14, 361–366. Crossref, PubMed, ISI, Google Scholar
    • Schneider S.H& Root T.LWildlife responses to climate change: North American case studies. 2002Washington:Island Press. Google Scholar
    • Sibly R& Hone J. 2002Population growth rate and its determinants: an overview. Phil. Trans. R. Soc. B. 357, 1153–1170.doi:10.1098/rstb.2002.1117. . Link, ISI, Google Scholar
    • Tier C& Hanson F.B. 1981Persistence of density dependent stochastic populations. Math. Biosci. 53, 89–117. Crossref, ISI, Google Scholar
    • Tuljapurkar SPopulation dynamics in variable environments. 1990Berlin:Springer-Verlag. Google Scholar
    • Turchin PComplex population dynamics: a theoretical/empirical synthesis. 2003Princeton University Press. Google Scholar
    • Turelli M. 1977Random environments and stochastic calculus. Theor. Popul. Biol. 12, 140–178. Crossref, PubMed, ISI, Google Scholar
    • Verburg P, Hecky R.E& Kling H. 2003Ecological consequences of a century of warming in Lake Tanganyika. Science. 301, 505–507. Crossref, PubMed, ISI, Google Scholar
    • Weltzin J.F, et al.2003Assessing the response of terrestrial ecosystems to potential changes in precipitation. BioScience. 53, 941–952. Crossref, ISI, Google Scholar
    • White T.C.R. 2004Limitation of populations by weather-driven changes in food: a challenge to density-dependent regulation. Oikos. 105, 664–666. Crossref, ISI, Google Scholar
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