File:Relationships between the values of annually imported commodities and first record rates ncomms14435-f3.jpg
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English: Relationships between the values of annually imported commodities and first record rates of the same regions for all taxonomic groups separately (a–p). Each dot represents a single year during 1870–2000, depending on data availability.
Following previous studies ( Costello, C., Springborn, M., McAusland, C. & Solow, A. Unintended biological invasions: Does risk vary by trading partner? J. Environ. Econ. Manage. 54, 262–276 (2007). - - - Levine, J. M. & D’Antonio, C. M. Forecasting biological invasions with increasing international trade. Conserv. Biol. 17, 322–326 (2003)) , a Michaelis–Menten curve (lines) was fitted to test for an improved fit using a nonlinear relationship with an attenuation of first record rates at large import values. The goodness-of-fit between observed data and the fitted curve is indicated by the Pearson’s correlation coefficient given in the upper left corner of sub-panels, except for bacteria and protozoans, where the fitting function did not converge.
Français : Relations entre les données "produits importés par an" et les espèces introduites devenues invisasives dans les mêmes régions (pour les grands groupes taxinomiques, séparément)
(a-p). Chaque point représente une seule année entre 1870 et 2000, selon la disponibilité des données. Après des études antérieures (Costello, C., Springborn, M., McAusland, C. et Solow, A. Invasions biologiques involontaires: Le risque varie-t-il selon le partenaire commercial ? ), Une courbe de Michaelis-Menten (lignes) a été construite pour tester une éventuelle amélioration. Il y a un ebonne adéquation entre les données observées et la courbe ajustée ( indiquée par le coefficient de corrélation de Pearson donné dans le coin supérieur gauche des sous-panneaux) sauf pour les bactéries et des protozoaires où la fonction d'ajustement ne converge pas. |
| Date | |
| Source | http://www.nature.com/articles/ncomms14435#ref40 No saturation in the accumulation of alien species worldwide , in Nature Communications 8, Article number: 14435 (2017) doi:10.1038/ncomms14435, Published online ; 15 February 2017 ("This work is licensed under a Creative Commons Attribution 4.0 International License") |
| Author | Hanno Seebens & al. |
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| current | 12:51, 25 February 2017 | | 926 × 713 (129 KB) | Lamiot (talk | contribs) | User created page with UploadWizard |
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