EFTA01786113.pdf

From: Sent: Monday, November 14, 2016 5:35 AM To: Jeffrey E. Subject: Fw: Nathan's Latest Paper - Metabolism and Growth Rate = = = = = Sent from my Black=erry 10 smartphone on the Verizon Wireless&n=sp;4G LTE network. = = =td colspan="2" style="font-size: initial; text-align: initial; backgro=nd-color: rgb(255, 255, 255);"> From: Nathan Myhrvold <[email protected]> Sent: Monday, November 14, 2016 11:594=iv> To: Nathan Myhrvold Subject: Fw: Nathan's =atest Paper - Metabolism and Growth Rate Sent from my smartphone. From: Dhileep Sivam Sent: Monday, NovemMi l li M To: h Leven Orzack; Gregory P Wilson=Mark B. GOODWIN; Savannah =lake; Cc: Nathan Myhrvold; Wayt Gibbs Subject: Nathan's Latest Paper - Metabolism and Growth Rate Hi Everyone - Nathan has asked me to&nbs=;share a link to his latest paleontology paper, which just published in PL=S this week. Please forward on to anyone else who you think might be inter=sted. Best, Dhileep http://jou=nals.plos.org/plosone/article/asset?id=10.1371/journal.pone.0163205.PDF<=a> <http://journals.plos.org/plosone/article/asset?id=10.1371/jour=al.pone.0163205.PDF> ABSTRACT: 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 =uch studies are reviewed, and their data is reanalyzed. The results of allometric regressions on growth rate are sh=wn to depend on the choice of independent variable; the typical choice EFTA_R1_00108698 EFTA01786113 use= in prior studies introduces a geometric shear transformation that exagger=tes the statistical power of the regressions. The maximum growth rates of extant groups are found to have a=great deal of overlap, including between groups with endothermic and ectot=ermic metabolism. Dinosaur growth rates show similar overlap, matching the=rates found for mammals, reptiles and fish. The allometric scaling of growth rate with mass is found to have=curvature (on a log-log scale) for many groups, contradicting the prevaili=g view that growth rate allometry follows a simple power law. Reanalysis s=ows that no correlation between growth rate and basal metabolic rate (BMR) has been demonstrated. These fi=dings drive a conclusion that growth rate allometry studies to date cannot=be used to determine dinosaur metabolism as has been previously argued.&nb=p; color 000000 date-last-viewed 0 date-received 1479101725 flags 8590195841 gmail-label-ids 2 22 remote-id 661285 2 EFTA_R1_00108699 EFTA01786114