GROWTH RATE, LONGEVITY AND MAXIMUM SIZE OFMACOMA BALTHICA(L.)

Maximum shell size, growth rate, and maturation age correlate with longevity in bivalve molluscs.

Bivalve molluscs are newly discovered models of successful aging, and this invertebrate group includes Arctica islandica, with the longest metazoan life span. Despite an increasing biogerontological focus on bivalves, their life history traits in relation to maximum age are not as comprehensively understood as those in vertebrate model aging organisms. We explore the allometric scaling of longe...

Environment and Longevity: The Demography of the Growth Rate

Longevity, pollution and growth

In this paper, we develop an OLG model where both longevity and fertility are endogenous. The authorities provide two types of public expenditures: health services and environmental maintenance that participate to increase agents’ life expectancy. Under proper conditions on the fiscal policy implemented by the government, the global dynamics is featured by multiple equilibria: a high growth rat...

Dinosaur Metabolism and the Allometry of Maximum Growth Rate

The allometry of maximum somatic growth rate has been used in prior studies to classify the metabolic state of both extant vertebrates and dinosaurs. The most recent such studies are reviewed, and their data is reanalyzed. The results of allometric regressions on growth rate are shown to depend on the choice of independent variable; the typical choice used in prior studies introduces a geometri...

Size, longevity and cancer: age structure

There is significant recent interest in Peto's paradox and the related problem of the evolution of large, long-lived organisms in terms of cancer robustness. Peto's paradox refers to the expectation that large, long-lived organisms have a higher lifetime cancer risk, which is not the case: a paradox. This paradox, however, is circular: large, long-lived organisms are large and long-lived becaus...