TY - JOUR
T1 - The origin and maintenance of metabolic allometry in animals
AU - White, Craig R.
AU - Marshall, Dustin J.
AU - Alton, Lesley A.
AU - Arnold, Pieter A.
AU - Beaman, Julian E.
AU - Bywater, Candice L.
AU - Condon, Catriona
AU - Crispin, Taryn S.
AU - Janetzki, Aidan
AU - Pirtle, Elia
AU - Winwood-Smith, Hugh S.
AU - Angilletta, Michael J.
AU - Chenoweth, Stephen F.
AU - Franklin, Craig E.
AU - Halsey, Lewis G.
AU - Kearney, Michael R.
AU - Portugal, Steven J.
AU - Ortiz-Barrientos, Daniel
PY - 2019/4
Y1 - 2019/4
N2 - Organisms vary widely in size, from microbes weighing 0.1 pg to trees weighing thousands of megagrams — a 10 21 -fold range similar to the difference in mass between an elephant and the Earth. Mass has a pervasive influence on biological processes, but the effect is usually non-proportional; for example, a tenfold increase in mass is typically accompanied by just a four- to sevenfold increase in metabolic rate. Understanding the cause of allometric scaling has been a long-standing problem in biology. Here, we examine the evolution of metabolic allometry in animals by linking microevolutionary processes to macroevolutionary patterns. We show that the genetic correlation between mass and metabolic rate is strong and positive in insects, birds and mammals. We then use these data to simulate the macroevolution of mass and metabolic rate, and show that the interspecific relationship between these traits in animals is consistent with evolution under persistent multivariate selection on mass and metabolic rate over long periods of time.
AB - Organisms vary widely in size, from microbes weighing 0.1 pg to trees weighing thousands of megagrams — a 10 21 -fold range similar to the difference in mass between an elephant and the Earth. Mass has a pervasive influence on biological processes, but the effect is usually non-proportional; for example, a tenfold increase in mass is typically accompanied by just a four- to sevenfold increase in metabolic rate. Understanding the cause of allometric scaling has been a long-standing problem in biology. Here, we examine the evolution of metabolic allometry in animals by linking microevolutionary processes to macroevolutionary patterns. We show that the genetic correlation between mass and metabolic rate is strong and positive in insects, birds and mammals. We then use these data to simulate the macroevolution of mass and metabolic rate, and show that the interspecific relationship between these traits in animals is consistent with evolution under persistent multivariate selection on mass and metabolic rate over long periods of time.
KW - Animal physiology
KW - Ecophysiology
UR - http://www.scopus.com/inward/record.url?scp=85063651198&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/ARC/DP110101776
UR - http://purl.org/au-research/grants/ARC/FT130101493
UR - http://purl.org/au-research/grants/ARC/DP170101114
UR - http://purl.org/au-research/grants/ARC/DP180103925
U2 - 10.1038/s41559-019-0839-9
DO - 10.1038/s41559-019-0839-9
M3 - Article
C2 - 30886370
AN - SCOPUS:85063651198
SN - 2397-334X
VL - 3
SP - 598
EP - 603
JO - Nature Ecology & Evolution
JF - Nature Ecology & Evolution
IS - 4
ER -