Imperial College London

Emeritus ProfessorRussellLande

Faculty of Natural SciencesDepartment of Life Sciences (Silwood Park)

Emeritus Professor of Population Biology
 
 
 
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r.lande

 
 
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Silwood ParkSilwood Park

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Summary

 

Publications

Publication Type
Year
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72 results found

Lande R, 2019, Developmental integration and evolution of labile plasticity in a complex quantitative character in a multiperiodic environment., Proc Natl Acad Sci U S A, Vol: 116, Pages: 11361-11369

Labile plasticity in a complex quantitative character is modeled, with multiple components contributing to net plasticity in the character. Each component has a specific development rate, norm of reaction, and cost of plasticity. For example, thermal adaptation in mammals includes seasonal fat deposition and fur growth, short-term shivering and sweating or panting, and movement between warm and cold sites. Norms of reaction do not reveal patterns of developmental integration, which must be investigated by studies of developmental dynamics in a changing environment. In a periodic environment, a labile character with a single component of plasticity is constrained by filtering environmental frequencies above the development rate and by the cost of plasticity. With multiple components of plasticity, some patterns of integration can alleviate these constraints to greatly improve fidelity of the mean phenotype tracking multiperiodic cycles in the optimum phenotype. This occurs by environmental signal amplification or inhibition through developmental integration among components and by an augmented development rate of net plasticity in the character that reduces environmental frequency filtering. When development of a component with high cost of plasticity is regulated partly by the norm of reaction of another component, evolution can diminish the reaction norm slope of the costly component without curtailing its development, thereby reducing the loss of fitness from its cost of plasticity. Apparent maladaptation in a component of plasticity may be an integral part of an adaptive pattern of developmental integration by mutual inhibition between components and compensatory evolution of a negative component reaction norm slope.

Journal article

Lande R, Engen S, Sæther B-E, 2017, Evolution of stochastic demography with life history tradeoffs in density-dependent age-structured populations., Proc Natl Acad Sci U S A, Vol: 114, Pages: 11582-11590

We analyze the stochastic demography and evolution of a density-dependent age- (or stage-) structured population in a fluctuating environment. A positive linear combination of age classes (e.g., weighted by body mass) is assumed to act as the single variable of population size, [Formula: see text], exerting density dependence on age-specific vital rates through an increasing function of population size. The environment fluctuates in a stationary distribution with no autocorrelation. We show by analysis and simulation of age structure, under assumptions often met by vertebrate populations, that the stochastic dynamics of population size can be accurately approximated by a univariate model governed by three key demographic parameters: the intrinsic rate of increase and carrying capacity in the average environment, [Formula: see text] and [Formula: see text], and the environmental variance in population growth rate, [Formula: see text] Allowing these parameters to be genetically variable and to evolve, but assuming that a fourth parameter, [Formula: see text], measuring the nonlinearity of density dependence, remains constant, the expected evolution maximizes [Formula: see text] This shows that the magnitude of environmental stochasticity governs the classical trade-off between selection for higher [Formula: see text] versus higher [Formula: see text] However, selection also acts to decrease [Formula: see text], so the simple life-history trade-off between [Formula: see text]- and [Formula: see text]-selection may be obscured by additional trade-offs between them and [Formula: see text] Under the classical logistic model of population growth with linear density dependence ([Formula: see text]), life-history evolution in a fluctuating environment tends to maximize the average population size.

Journal article

Porcher E, Lande R, 2016, Inbreeding depression under mixed outcrossing, self-fertilization and sib-mating., BMC Evolutionary Biology, Vol: 16, ISSN: 1471-2148

BACKGROUND: Biparental inbreeding, mating between two relatives, occurs at a low frequency in many natural plant populations, which also often have substantial rates of self-fertilization. Although biparental inbreeding is likely to influence the dynamics of inbreeding depression and the evolution of selfing rates, it has received limited theoretical attention in comparison to selfing. The only previous model suggested that biparental inbreeding can favour the maintenance of stable intermediate selfing rates, but made unrealistic assumptions about the genetic basis of inbreeding depression. Here we extend a genetic model of inbreeding depression, describing nearly recessive lethal mutations at a very large number of loci, to incorporate sib-mating. We also include a constant component of inbreeding depression modelling the effects of mildly deleterious, nearly additive alleles. We analyze how observed rates of sib-mating influence the mean number of heterozygous lethals alleles and inbreeding depression in a population reproducing by a mixture of self-fertilization, sib-mating and outcrossing. We finally use the ensuing relationship between equilibrium inbreeding depression and population selfing rate to infer the evolutionarily stable selfing rates expected under such a mixed mating system. RESULTS: We show that for a given rate of inbreeding, sib-mating is more efficient at purging inbreeding depression than selfing, because homozygosity of lethals increases more gradually through sib-mating than through selfing. Because sib-mating promotes the purging of inbreeding depression and the evolution of selfing, our genetic model of inbreeding depression also predicts that sib-mating is unlikely to maintain stable intermediate selfing rates. CONCLUSIONS: Our results imply that even low rates of sib-mating affect plant mating system evolution, by facilitating the evolution of selfing via more efficient purging of inbreeding depression. Alternative mechanisms, such as pol

Journal article

Chevin L-M, Lande R, 2015, Evolution of environmental cues for phenotypic plasticity, EVOLUTION, Vol: 69, Pages: 2767-2775, ISSN: 0014-3820

Journal article

Lande R, Porcher E, 2015, Maintenance of Quantitative Genetic Variance Under Partial Self-Fertilization, with Implications for Evolution of Selfing, GENETICS, Vol: 200, Pages: 891-906, ISSN: 0016-6731

Journal article

Lande R, 2015, Evolution of phenotypic plasticity in colonizing species, MOLECULAR ECOLOGY, Vol: 24, Pages: 2038-2045, ISSN: 0962-1083

Journal article

Penz C, DeVries P, Tufto J, Lande Ret al., 2015, Butterfly dispersal across Amazonia and its implication for biogeography, ECOGRAPHY, Vol: 38, Pages: 410-418, ISSN: 0906-7590

Journal article

Engen S, Lande R, Saether B-E, 2014, Evolutionary Consequences of Nonselective Harvesting in Density-Dependent Populations, AMERICAN NATURALIST, Vol: 184, Pages: 714-726, ISSN: 0003-0147

Journal article

Devaux C, Lande R, Porcher E, 2014, Pollination ecology and inbreeding depression control individual flowering phenologies and mixed mating, EVOLUTION, Vol: 68, Pages: 3051-3065, ISSN: 0014-3820

Journal article

Conner JK, Lande R, 2014, Raissa L. Berg's contributions to the study of phenotypic integration, with a professional biographical sketch, PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 369, ISSN: 0962-8436

Journal article

Grotan V, Lande R, Chacon IA, DeVries PJet al., 2014, Seasonal cycles of diversity and similarity in a Central American rainforest butterfly community, ECOGRAPHY, Vol: 37, Pages: 509-516, ISSN: 0906-7590

Journal article

Lande R, 2014, Evolution of phenotypic plasticity and environmental tolerance of a labile quantitative character in a fluctuating environment, JOURNAL OF EVOLUTIONARY BIOLOGY, Vol: 27, Pages: 866-875, ISSN: 1010-061X

Journal article

Porcher E, Lande R, 2013, EVALUATING A SIMPLE APPROXIMATION TO MODELING THE JOINT EVOLUTION OF SELF-FERTILIZATION AND INBREEDING DEPRESSION, EVOLUTION, Vol: 67, Pages: 3628-3635, ISSN: 0014-3820

Journal article

Chevin L-M, Lande R, 2013, Evolution of Discrete Phenotypes from Continuous Norms of Reaction, AMERICAN NATURALIST, Vol: 182, Pages: 13-27, ISSN: 0003-0147

Journal article

Engen S, Lande R, Saether B-E, 2013, A Quantitative Genetic Model of r- and K-Selection in a Fluctuating Population, AMERICAN NATURALIST, Vol: 181, Pages: 725-736, ISSN: 0003-0147

Journal article

Servedio MR, Price TD, Lande R, 2013, Evolution of displays within the pair bond, PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 280, ISSN: 0962-8452

Journal article

Chevin L-M, Lande R, 2013, Evolution of Discrete Phenotypes from Continuous Norms of Reaction, AMERICAN NATURALIST, Vol: 182, Pages: 13-27, ISSN: 0003-0147

Journal article

Tufto J, Lande R, Ringsby T-H, Engen S, Saether B-E, Walla TR, DeVries PJet al., 2012, Estimating Brownian motion dispersal rate, longevity and population density from spatially explicit mark-recapture data on tropical butterflies, JOURNAL OF ANIMAL ECOLOGY, Vol: 81, Pages: 756-769, ISSN: 0021-8790

Journal article

Goldberg EE, Lande R, Price TD, 2012, Population Regulation and Character Displacement in a Seasonal Environment, AMERICAN NATURALIST, Vol: 179, Pages: 693-705, ISSN: 0003-0147

Journal article

Grotan V, Lande R, Engen S, Saether B-E, DeVries PJet al., 2012, Seasonal cycles of species diversity and similarity in a tropical butterfly community, JOURNAL OF ANIMAL ECOLOGY, Vol: 81, Pages: 714-723, ISSN: 0021-8790

Journal article

Engen S, Lande R, Saether B-E, 2011, EVOLUTION OF A PLASTIC QUANTITATIVE TRAIT IN AN AGE-STRUCTURED POPULATION IN A FLUCTUATING ENVIRONMENT, EVOLUTION, Vol: 65, Pages: 2893-2906, ISSN: 0014-3820

Journal article

Chevin L-M, Lande R, 2011, Adaptation to marginal habitats by evolution of increased phenotypic plasticity, JOURNAL OF EVOLUTIONARY BIOLOGY, Vol: 24, Pages: 1462-1476, ISSN: 1010-061X

Journal article

Goldberg EE, Kohn JR, Lande R, Robertson KA, Smith SA, Igic Bet al., 2010, Species Selection Maintains Self-Incompatibility, SCIENCE, Vol: 330, Pages: 493-495, ISSN: 0036-8075

Journal article

Galis F, Arntzen JW, Lande R, 2010, DOLLO'S LAW AND THE IRREVERSIBILITY OF DIGIT LOSS IN BACHIA, EVOLUTION, Vol: 64, Pages: 2466-2476, ISSN: 0014-3820

Journal article

Engen S, Lande R, Saether B-E, Gienapp Pet al., 2010, Estimating the ratio of effective to actual size of an age-structured population from individual demographic data, JOURNAL OF EVOLUTIONARY BIOLOGY, Vol: 23, Pages: 1148-1158, ISSN: 1010-061X

Journal article

Devaux C, Lande R, 2010, SELECTION ON VARIANCE IN FLOWERING TIME WITHIN AND AMONG INDIVIDUALS, EVOLUTION, Vol: 64, Pages: 1311-1320, ISSN: 0014-3820

Journal article

Chevin L-M, Lande R, Mace GM, 2010, Adaptation, Plasticity, and Extinction in a Changing Environment: Towards a Predictive Theory, PLOS BIOLOGY, Vol: 8, ISSN: 1545-7885

Journal article

Chevin L-M, Lande R, 2010, WHEN DO ADAPTIVE PLASTICITY AND GENETIC EVOLUTION PREVENT EXTINCTION OF A DENSITY-REGULATED POPULATION?, EVOLUTION, Vol: 64, Pages: 1143-1150, ISSN: 0014-3820

Journal article

Engen S, Lande R, Saether B-E, Dobson FSet al., 2009, Reproductive Value and the Stochastic Demography of Age-Structured Populations, AMERICAN NATURALIST, Vol: 174, Pages: 795-804, ISSN: 0003-0147

Journal article

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