Global flows of insect transport and establishment: the role of biogeography, trade, and regulations

# Global flows of insect transport and establishment This repository contains all the necessary files to carry out the analyses in ?Global flows of insect transport and establishment: the role of biogeography, trade, and regulations?. The code is available in the ?flows\_script? R script. ## The data uploaded are: transport\_flows\_updated.csv - the number of insect species ("richness") intercepted during border inspections per unique combination of source country, destination, associated commodity class and decade intercepted. The variables in this file are: * source: the ISO3 code of the source country * years: the decade of port interception * destination: the area of interception * class: identity of 14 broad commodity classes insects were associated with during transport * flow: the source and destination pair * region: the biogeographic region of origin (errors corrected 31.10.23) * richness: the number of intercepted species * clim\_dist: the climatic dissimilarity between the source and destination, from 0 (no dissimilarity) to 1 (complete dissimilarity) * geo\_dist: the geographic distance between the source and destination centroids (km) * NIT: the number of treaties, legislation and regulations relating to IAS that the source country adheres to * NIT\_dest: the number of treaties, legislation and regulations relating to IAS that the destination country adheres to * intra\_inter: whether species are transported within the same biogeographic region (intra) or not (inter) * area: the land area of the source country in square km * GDP: the Gross National Product of the source country * log\_value\_usd: the commodity import value in US dollars per flow * log\_insect\_estimate\_ants: the estimated size of the native insect pool in the source country, based on ant diversity * log\_GNI: the Gross National Income of the source country * plant\_richnes: the size of the native vascular plant species pool in the source country establishment\_flows.csv - the number of insect species ("richness") established in the destination area, per unique combination of native biogeographic region, destination, and estimated decade established. The variables in this file are: * country\_established: the area where insect species have established * native\_region: the biogeographic region where the insect species are native to * years: the decade of establishment first record * richness: the number of established insect species per flow * intra\_inter: whether species have established within the same biogeographic region (intra) or not (inter) * NIT\_dest: the number of treaties, legislation and regulations relating to IAS that the destination country adheres to * log\_plant\_trade: the log value of plant products imported per flow in US $ * wood\_trade: the value of wood products imported per flow * agri\_trade: the value of agricultural commodities imported per flow * total\_trade: the total value of commodity imports per flow * plant\_trade\_prev\_decade: the value of plant products imported in the decade prior to insects establishing * wood\_trade\_prev\_decade: the value of wood products imported in the decade prior to insects establishing * agri\_trade\_prev\_decade: the value of agricultural commodities imported in the decade prior to insects establishing * total\_trade\_prev\_decade: the value of total commodity imports in the decade prior to insects establishing