Non-native species list to examine non-native species diversity globally

DOI

Fifteen independent lists of non-native species (NNS) were used to examine NNS diversity globally. The lists were chosen opportunistically as the majority of them were publicly available; a few additional ones were assembled by authors of this study. Furthermore, to examine NNS diversity in different biological systems (i.e. terrestrial, aquatic, freshwater, and marine), the global list (Briski et al. 2016) was further divided into aquatic and terrestrial lists, while the European list (DAISIE 2016) was split into marine, freshwater, and terrestrial; the way these two lists were divided was based on available habitat classifications in the lists. Aquatic taxa were defined as freshwater and marine combined. Overlapping regions were defined as those that geographically cover one or more smaller listed regions. For example, if a species was listed in the European marine list, it may be listed there because it was included in the Mediterranean Sea list. The lists were not standardised to each other, but were kept in their original state (i.e. including all listed species), incorporating their independency due to taxonomic and scientific expertise and interests of scientists assembling them. We took this approach because we do not compare the lists to each other explicitly, but consider them independently to estimate global NNS biodiversity obtained from the Global Biodiversity Information Facility (GBIF). Therefore, each coefficient of determination (r2) obtained from our regression analyses was unique and independent from one another, representing an independent data point for further statistical analyses (see below). In August and September 2019, species in each list were assigned to phylum, class, and family levels based on the GBIF (2019). Global estimated biodiversity (i.e. numbers of species per taxonomic group) of each particular phylum, class, and family was obtained from the GBIF in June 2020 (GBIF 2020).

Several species in the list were later discovered to have never been established in the regions shown and were thus inadvertently included; however, their inclusion does not change any statistical outcomes or our conclusions.

Identifier
DOI https://doi.org/10.1594/PANGAEA.940752
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Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.940752
Provenance
Creator Briski, Elizabeta; Kotronaki, Syrmalenia G; Cuthbert, Ross N; Bortolus, Alejandro; Campbell, Marnie L; Dick, Jaimie; Fofonoff, Paul; Galil, Bella S; Hewitt, Chad L; Lockwood, Julie; MacIsaac, Hugh J; Ricciardi, Anthony; Ruiz, Gregory M; Schwindt, Evangelina; Sommer, Ulrich; Zhan, Aibin; Carlton, James T
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2022
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Representation
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 664700 data points
Discipline Earth System Research