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. 2021 Sep 30;8:254. doi: 10.1038/s41597-021-01006-6

Table 9.

Possible value types of trait records.

key value
raw_value Value is a direct measurement
site_min Value is the minimum of measurements on multiple individuals of the taxon at a single site
site_mean Value is the mean or median of measurements on multiple individuals of the taxon at a single site
site_max Value is the maximum of measurements on multiple individuals of the taxon at a single site
multisite_min Value is the minimum of measurements on multiple individuals of the taxon across multiple sites
multisite_mean Value is the mean or median of measurements on multiple individuals of the taxon across multiple sites
multisite_max Value is the maximum of measurements on multiple individuals of the taxon across multiple sites
expert_min Value is the minimum observed for a taxon across its range or in this particular dataset, as estimated by an expert based on their knowledge of the taxon. Data fitting this category include estimates from floras that represent a taxon’s entire range.
expert_mean Value is the mean observed for a taxon across its range or in this particular dataset, as estimated by an expert based on their knowledge of the taxon. Data fitting this category include estimates from floras that represent a taxon’s entire range, and values for categorical variables obtained from a reference book, or identified by an expert.
expert_max Value is the maximum observed for a taxon across its range or in this particular dataset, as estimated by an expert based on their knowledge of the taxon. Data fitting this category include estimates from floras that represent a taxon’s entire range.
experiment_min Value is the minimum of measurements from an experimental study either in the field or a glasshouse
experiment_mean Value is the mean or median of measurements from an experimental study either in the field or a glasshouse
experiment_max Value is the maximum of measurements from an experimental study either in the field or a glasshouse
individual_mean Value is a mean of replicate measurements on an individual (usually for experimental ecophysiology studies)
individual_max Value is a maximum of replicate measurements on an individual (usually for experimental ecophysiology studies)
literature_source Value is a site or multi-site mean that has been sourced from an unknown literature source
unknown Value type is not currently known