Comparing growth patterns of three species: Similarities and differences

Autoři: Norbert Brunner aff001;  Manfred Kühleitner aff001;  Werner Georg Nowak aff001;  Katharina Renner-Martin aff001;  Klaus Scheicher aff001
Působiště autorů: University of Natural Resources and Life Sciences, Department of Integrative Biology and Biodiversity Research, Vienna, Austria aff001
Vyšlo v časopise: PLoS ONE 14(10)
Kategorie: Research Article


Quantitative studies of the growth of dinosaurs have made comparisons with modern animals possible. Therefore, it is meaningful to ask, if extinct dinosaurs grew faster than modern animals, e.g. birds (modern dinosaurs) and reptiles. However, past studies relied on only a few growth models. If these models were false, what about the conclusions? This paper fits growth data to a more comprehensive class of models, defined by the von Bertalanffy-Pütter (BP) differential equation. Applied to data about Tenontosaurus tilletti, Alligator mississippiensis and the Athens Canadian Random Bred strain of Gallus gallus domesticus the best fitting growth curves did barely differ, if they were rescaled for size and lifespan. A difference could be discerned, if time was rescaled for the age at the inception point (maximal growth) or if the percentual growth was compared.

Klíčová slova:

Birds – Curve fitting – Chickens – Poultry – Reptiles – Dinosaurs – Basal metabolic rate measurement – Chicken models


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2019 Číslo 10
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