High-latitude settings promote extreme longevity in fossil marine bivalves

David K. Moss, Linda C. Ivany, Robert B. Silver, John Schue, Emily G. Artruc

Research output: Research - peer-reviewArticle

Abstract

One of the longest-lived, noncolonial animals on the planet today is a bivalve that attains life spans in excess of 500 years and lives in a cold, seasonally food-limited setting. Separating the influence of temperature and food availability on life span in modern settings is difficult, as these two conditions covary. The life spans of fossil animals can provide insights into the role of environment in the evolution of extreme longevity that are not available from studies of modern taxa. We examine bivalves from the unique, nonanalogue, warm and high-latitude setting of Seymour Island, Antarctica, during the greenhouse intervals of the Late Cretaceous and Paleogene. Despite significant sampling limitations, we find that all 11 species examined are both slow growing and long-lived, especially when compared with modern bivalves living in similar temperature settings. While cool temperatures have long been thought to be a key factor in promoting longevity, our findings suggest an important role for caloric restriction brought about by the low and seasonal light regime of the high latitudes. Our life-history data, spanning three different families, emphasize that longevity is in part governed by environmental rather than solely phylogenetic or ecologic factors. Such findings have implications for both modern and ancient latitudinal diversity gradients, as a common correlate of slow growth and long life is delayed reproduction, which limits the potential for evolutionary change. While life spans of modern bivalves are well studied, data on life spans of fossil bivalves are sparse and largely anecdotal. Life histories of organisms from deep time can not only elucidate the controls on life span but also add a new dimension to our understanding of macroevolutionary patterns.

LanguageEnglish (US)
Pages365-382
Number of pages18
JournalPaleobiology
Volume43
Issue number3
DOIs
StatePublished - Aug 1 2017

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bivalve
fossil
Bivalvia
fossils
temperature
life history
animal
Temperature
animals
Food
food availability
Paleogene
planet
Cretaceous
phylogenetics
food
sampling
cold
family
organism

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Agricultural and Biological Sciences(all)
  • Palaeontology

Cite this

Moss, D. K., Ivany, L. C., Silver, R. B., Schue, J., & Artruc, E. G. (2017). High-latitude settings promote extreme longevity in fossil marine bivalves. Paleobiology, 43(3), 365-382. DOI: 10.1017/pab.2017.5

High-latitude settings promote extreme longevity in fossil marine bivalves. / Moss, David K.; Ivany, Linda C.; Silver, Robert B.; Schue, John; Artruc, Emily G.

In: Paleobiology, Vol. 43, No. 3, 01.08.2017, p. 365-382.

Research output: Research - peer-reviewArticle

Moss, DK, Ivany, LC, Silver, RB, Schue, J & Artruc, EG 2017, 'High-latitude settings promote extreme longevity in fossil marine bivalves' Paleobiology, vol 43, no. 3, pp. 365-382. DOI: 10.1017/pab.2017.5
Moss DK, Ivany LC, Silver RB, Schue J, Artruc EG. High-latitude settings promote extreme longevity in fossil marine bivalves. Paleobiology. 2017 Aug 1;43(3):365-382. Available from, DOI: 10.1017/pab.2017.5
Moss, David K. ; Ivany, Linda C. ; Silver, Robert B. ; Schue, John ; Artruc, Emily G./ High-latitude settings promote extreme longevity in fossil marine bivalves. In: Paleobiology. 2017 ; Vol. 43, No. 3. pp. 365-382
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