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Population Dynamics in Variable Environments
- S. Tuljapurkar
- 25 April 1990
1 Introduction.- 2 Beginnings: Classical Theory.- 3 Deterministic Temporal Variation.- 4 Random Rates: General Theory.- 5 Examples.- 6 Ess and Allele Invasion.- 7 Moments of the Population Vector.- 8… Expand
A universal pattern of mortality decline in the G7 countries
Human lifespan has increased enormously this century. But we remain uncertain about the forces that reduce mortality, and about the cost implications of ageing populations and their associated social… Expand
Inequality in Life Spans and a New Perspective on Mortality Convergence Across Industrialized Countries
The second half of the twentieth century witnessed much convergence in life expectancy around the world. We examine differences in the age pattern of mortality between countries over time to show… Expand
Coupled dynamics of body mass and population growth in response to environmental change
Environmental change has altered the phenology, morphological traits and population dynamics of many species. However, the links underlying these joint responses remain largely unknown owing to a… Expand
Longevity can buffer plant and animal populations against changing climatic variability.
Both means and year-to-year variances of climate variables such as temperature and precipitation are predicted to change. However, the potential impact of changing climatic variability on the fate of… Expand
The Many Growth Rates and Elasticities of Populations in Random Environments
- S. Tuljapurkar, C. Horvitz, John B. Pascarella
- Medicine, Physics
- The American Naturalist
- 1 October 2003
Despite considerable interest in the dynamics of populations subject to temporally varying environments, alternate population growth rates and their sensitivities remain incompletely understood. For… Expand
Stochastic population forecasts for the United States: beyond high, medium, and low.
- R. D. Lee, S. Tuljapurkar
- Mathematics, Medicine
- Journal of the American Statistical Association
- 1 December 1994
"This article presents and implements a new method for making stochastic population forecasts that provide consistent probability intervals. We blend mathematical demography and statistical time… Expand
Using evolutionary demography to link life history theory, quantitative genetics and population ecology
1. There is a growing number of empirical reports of environmental change simultaneously influencing population dynamics, life history and quantitative characters. We do not have a well-developed… Expand
Dynamic heterogeneity in life histories.
Longitudinal data on natural populations have been analysed using multistage models in which survival depends on reproductive stage, and individuals change stages according to a Markov chain. These… Expand
Heterosis as an explanation for large amounts of genic polymorphism.
By using both numerical and analytical approaches, we have shown that heterosis alone is not a mechanism for maintaining many alleles segregating at a locus. Even when all heterozygous are more fit… Expand