PT - JOURNAL ARTICLE AU - Gutiérrez-Ruelas Jesús Salvador AU - Laura Jiménez AU - Ana Patricia Quiroz-Reyes AU - Sabrina Cherizar Sotelo-Pedroza AU - Soberon Jorge TI - On Some Problems of Estimating Fundamental Niche from Physiological Data AID - 10.1101/716688 DP - 2019 Jan 01 TA - bioRxiv PG - 716688 4099 - http://biorxiv.org/content/early/2019/07/28/716688.short 4100 - http://biorxiv.org/content/early/2019/07/28/716688.full AB - Hutchinson proposed the idea of the fundamental niche, determined by physiological properties of a species, more than 50 years ago. The idea remains both central to ecological thinking and largely unexplored experimentally. In this note, we describe some problems of using physiological experiments databases to estimate fundamental niches, show some solutions, and the apply our solution to testing the prediction that fundamental niches contain realized niches, for some species of marine fishes and terrestrial beetles. Our results were concordant with Hutchinson’s predictions.