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The prevention and detection of human error in ecological stable isotope analysis
Author(s) -
Hawke David J.,
Brown Julie C. S.,
Bury Sarah J.
Publication year - 2018
Publication title -
methods in ecology and evolution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.425
H-Index - 105
ISSN - 2041-210X
DOI - 10.1111/2041-210x.13077
Subject(s) - blame , sample (material) , quality (philosophy) , computer science , process (computing) , human error , ecology , selection (genetic algorithm) , environmental resource management , best practice , risk analysis (engineering) , operations research , data science , environmental science , psychology , biology , engineering , business , artificial intelligence , philosophy , chemistry , management , epistemology , chromatography , psychiatry , economics , operating system
Stable isotope analysis ( SIA ) is widely used in ecology, but samples are usually analysed in specialist facilities. Like any complex process, SIA is susceptible to human error. Despite the best efforts of the SIA laboratory, errors may occasionally remain in results released to clients. We used our experiences as ecologists and laboratory analysts to identify human error scenarios to which SIA performed anywhere might be susceptible. These scenarios ran from sample selection and submission by the ecologist, to the final results report from the SIA laboratory. Several scenarios involved errors hard to find by visual examination, by either ecologist or analyst. The ecologist can prevent pre‐submission errors by formalising their sample submission process, and can best perform a final results quality check by submitting their own quality control material with a matrix similar to that of the samples. Prevention of laboratory errors is best accomplished by a comprehensive risk‐based quality management system and a continual improvement, no‐blame laboratory culture. We recommend that the ecologist views the entire sample selection, submission and laboratory analysis as an integrated whole, establishing their own quality management processes to run alongside those of the SIA facility. This recommendation applies to any ecological methodology where samples are sent to a specialist facility for analysis.