SDG #15 is to “ Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss”
Within SDG #15 are 12 targets, of which we here focus on Target 15.8:
By 2020, introduce measures to prevent the introduction and significantly reduce the impact of invasive alien species on land and water ecosystems and control or eradicate the priority species
Target 15.8 has one indicator:
Indicator 15.8.1: Proportion of countries adopting relevant national legislation and adequately resourcing the prevention or control of invasive alien species
In the period 2010 to 2020, Aichi Biodiversity Target #9 guided all countries party to the Convention on Biological Diversity:
By 2020, invasive alien species and pathways are identified and prioritized, priority species are controlled or eradicated, and measures are in place to manage pathways to prevent their introduction and establishment.
As part of the Convention on Biological Diversity, each party has a national biodiversity strategy and action plan (NBSAP). By comparing this plan to Aichi Target #9, we can get a sense of their progress toward indicator 15.8.1. This alignment was widespread across parties to the convention with a dozen or so exceptions as of 2020, including the US, which isn’t a party.
We can measure whether a country is resourcing the prevention or control of invasive alien species. One of the ways we can is to look at which have allocated a budget towards this end. On this measure, there’s not much of a pattern on which countries have or not as of 2022.