Now showing items 1-13 of 13

    • A life-history evaluation of the impact of maternal effects on recruitment and fisheries reference points 

      Calduch-Verdiell, N; MacKenzie, BR; Vaupel, JW; Andersen, KH (Canadian Journal of Fisheries and Aquatic Sciences, 2014-01-01)
      Fishing causes dramatic changes in the age and size structure of fish stocks. In particular, the targeting of the largest and oldest individuals in a stock changes the age and size distribution of that stock. A large female ...
    • Attrition in heterogeneous cohorts 

      Vaupel, JW; Zhang, Z (Demographic Research, 2010-11-10)
      In a heterogeneous cohort, the change with age in the force of mortality or some other kind of hazard or intensity of attrition depends on how the hazard changes with age for the individuals in the cohort and on how the ...
    • Demographic characteristics of sardinian centenarian genealogies: Preliminary results of the AKeA2 study 

      Lipsi, RM; Caselli, G; Pozzi, L; Baggio, G; Carru, C; Franceschi, C; Vaupel, JW; ... (8 authors) (Demographic Research, 2015-01-01)
      © 2015 Rosa Maria Lipsi et al.Objective: This article provides an overview of the AKeA2 study, with a particular focus on data collection concerning family genealogies of the Sardinian centenarians and controls, and on the ...
    • Design, recruitment, logistics, and data management of the GEHA (Genetics of Healthy Ageing) project. 

      Skytthe, A; Valensin, S; Jeune, B; Cevenini, E; Balard, F; Beekman, M; Bezrukov, V; ... (59 authors) (Exp Gerontol, 2011-11)
      In 2004, the integrated European project GEHA (Genetics of Healthy Ageing) was initiated with the aim of identifying genes involved in healthy ageing and longevity. The first step in the project was the recruitment of more ...
    • Forecasting life expectancy in an international context 

      Torri, T; Vaupel, JW (International Journal of Forecasting, 2012-04-01)
      Over the past two centuries, the life expectancy has more than doubled in many countries, for both males and females. The levels of the countries with the highest life expectancies have risen almost linearly. We exploit ...
    • Maternal longevity is associated with lower infant mortality 

      Caselli, G; Lapucci, E; Lipsi, RM; Pozzi, L; Baggio, G; Carru, C; Deiana, L; ... (9 authors) (Demographic Research, 2014-01-01)
      © 2014 Caselli et al.Objective: Referring to the multidisciplinary and multipurpose survey AKeA2, and focusing on family genealogy data on centenarian women and controls, this paper aims to verify the hypothesis that maternal ...
    • Mortality implications of mortality plateaus 

      Missov, TI; Vaupel, JW (SIAM Review, 2015-01-01)
      This article aims to describe in a unified framework all plateau-generating random effects models in terms of (i) plausible distributions for the hazard (baseline mortality) and the random effect (unobserved heterogeneity, ...
    • Senescence vs. sustenance: Evolutionary-demographic models of aging 

      Baudisch, A; Vaupel, JW (Demographic Research, 2010-11-10)
      Humans, and many other species, suffer senescence: mortality increases and fertility decreases with adult age. Some species, however, enjoy sustenance: mortality and fertility remain constant. Here we develop simple but ...
    • Sex differences in health and mortality in Moscow and Denmark. 

      Oksuzyan, A; Shkolnikova, M; Vaupel, JW; Christensen, K; Shkolnikov, VM (Eur J Epidemiol, 2014-04)
      In high income countries females outlive men, although they generally report worse health, the so-called male-female health-survival paradox. Russia has one of the world's largest sex difference in life expectancy with a ...
    • The compadre Plant Matrix Database: An open online repository for plant demography 

      Salguero-Gómez, R; Jones, OR; Archer, CR; Buckley, YM; Che-Castaldo, J; Caswell, H; Hodgson, D; ... (38 authors) (Journal of Ecology, 2015-01-01)
      © 2014 The Authors. Journal of Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society.Summary: Schedules of survival, growth and reproduction are key life-history traits. Data on how these traits ...
    • The difference between alternative averages 

      Vaupel, JW; Zhang, Z (Demographic Research, 2012-12-06)
      Background: Demographers have long been interested in how compositional change, e.g., change in age structure, affects population averages. Objective: We want to deepen understanding of how compositional change affects population ...
    • Unobserved population heterogeneity 

      Vaupel, JW; Yashin, AI (Demographic Research, 2014-09)
    • Unobserved population heterogeneity: A review of formal relationships 

      Vaupel, JW; Missov, TI (Demographic Research, 2014-01-01)
      © 2014 James W. Vaupel & Trifon I. Missov.Background: Survival models accounting for unobserved heterogeneity (frailty models) play an important role in mortality research, yet there is no article that concisely summarizes ...