Have We Outgrown the Existing Models of Growth?

Research output: Contribution to journalReview ArticleResearchpeer-review

Abstract

Theories of growth have a long history in biology. Two major branches of theory (mechanistic and phenomenological) describe the dynamics of growth and explain variation in the size of organisms. Both theory branches usually assume that reproductive output scales proportionately with body size, in other words that reproductive output is isometric. A meta-analysis of hundreds of marine fishes contradicts this assumption, larger mothers reproduce disproportionately more in 95% of species studied, and patterns in other taxa suggest that reproductive hyperallometry is widespread. We argue here that reproductive hyperallometry represents a profound challenge to mechanistic theories of growth in particular, and that they should be revised accordingly. We suspect that hyperallometric reproduction drives growth trajectories in ways that are largely unanticipated by current theories.

Original languageEnglish
Pages (from-to)102-111
Number of pages10
JournalTrends in Ecology and Evolution
Volume34
Issue number2
DOIs
Publication statusPublished - 1 Feb 2019

Keywords

  • geometric biology
  • growth
  • life history

Cite this

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title = "Have We Outgrown the Existing Models of Growth?",
abstract = "Theories of growth have a long history in biology. Two major branches of theory (mechanistic and phenomenological) describe the dynamics of growth and explain variation in the size of organisms. Both theory branches usually assume that reproductive output scales proportionately with body size, in other words that reproductive output is isometric. A meta-analysis of hundreds of marine fishes contradicts this assumption, larger mothers reproduce disproportionately more in 95{\%} of species studied, and patterns in other taxa suggest that reproductive hyperallometry is widespread. We argue here that reproductive hyperallometry represents a profound challenge to mechanistic theories of growth in particular, and that they should be revised accordingly. We suspect that hyperallometric reproduction drives growth trajectories in ways that are largely unanticipated by current theories.",
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Have We Outgrown the Existing Models of Growth? / Marshall, Dustin J.; White, Craig R.

In: Trends in Ecology and Evolution, Vol. 34, No. 2, 01.02.2019, p. 102-111.

Research output: Contribution to journalReview ArticleResearchpeer-review

TY - JOUR

T1 - Have We Outgrown the Existing Models of Growth?

AU - Marshall, Dustin J.

AU - White, Craig R.

PY - 2019/2/1

Y1 - 2019/2/1

N2 - Theories of growth have a long history in biology. Two major branches of theory (mechanistic and phenomenological) describe the dynamics of growth and explain variation in the size of organisms. Both theory branches usually assume that reproductive output scales proportionately with body size, in other words that reproductive output is isometric. A meta-analysis of hundreds of marine fishes contradicts this assumption, larger mothers reproduce disproportionately more in 95% of species studied, and patterns in other taxa suggest that reproductive hyperallometry is widespread. We argue here that reproductive hyperallometry represents a profound challenge to mechanistic theories of growth in particular, and that they should be revised accordingly. We suspect that hyperallometric reproduction drives growth trajectories in ways that are largely unanticipated by current theories.

AB - Theories of growth have a long history in biology. Two major branches of theory (mechanistic and phenomenological) describe the dynamics of growth and explain variation in the size of organisms. Both theory branches usually assume that reproductive output scales proportionately with body size, in other words that reproductive output is isometric. A meta-analysis of hundreds of marine fishes contradicts this assumption, larger mothers reproduce disproportionately more in 95% of species studied, and patterns in other taxa suggest that reproductive hyperallometry is widespread. We argue here that reproductive hyperallometry represents a profound challenge to mechanistic theories of growth in particular, and that they should be revised accordingly. We suspect that hyperallometric reproduction drives growth trajectories in ways that are largely unanticipated by current theories.

KW - geometric biology

KW - growth

KW - life history

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DO - 10.1016/j.tree.2018.10.005

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