Political geography key to assessing the economic costs of invasive pests on the islands

-2 It is in US Dollars. There was almost no overlap between species in the different island types. Only 3 species reported cost of damage overseas (OTs). Credit: Conservation Biology (2022). DOI: 10.1111/cobi.14034″ width=”800″ height=”529″/>

Top 5 most costly invasive species by island type for (a) all costs, (b) damage costs, and (c) management costs. All costs are in km-2. There was almost no overlap between species in the different island types. Only 3 species reported cost of damage overseas (OTs). Credit: Conservation Biology (2022). DOI: 10.1111/cobi.14034

Scientists assessing the economic cost of invasive species on the islands have shown that political geography plays an important role in influencing the extent of socio-economic costs.

The islands are key locations for global biodiversity, but are also highly susceptible to the effects of invasive species that often pose serious threats, including extinction, to fragile ecosystems.

In the first-of-its-kind assessment, a team of scientists used the InvaCost database, the most complete compilation of the economic costs of invasive species, to perform a global analysis for all islands with recorded costs.

Invasive species are well known for their enormous ecological costs, including hunting rare and threatened plants and animals and spreading diseases. However, they also impose a huge economic burden, with sociological, environmental and health impacts.

published in the magazine Conservation Biology The researchers, supported by international and international funding, hope their findings will encourage investment in biosecurity and proactive management measures to reduce the impact and associated costs of invasive species.

D., a Research Associate in the School of Biological Sciences at the University of Aberdeen. “This is the first global assessment of the economic costs of invasive species on islands, in areas that are biodiversity hotspots and are in danger of extinction,” said Thomas Bodey. Real threat to native species We identify key differences in economic costs reflected in political geography, island nation states incur the greatest costs, and overseas regions have much less than anticipated given that these locations face similar threats from similar species.

“The good news is that the dominance of management costs demonstrates recognition of the threats posed by invasive species, but there is likely still substantial underinvestment and underreporting.”

The research revealed that nation-states spend the largest part of their GDP against these costs, with most costs borne by authorities and stakeholders, demonstrating the key role of government and NGO bodies in addressing island invasions.

Dr. “Many islands have limited resources, so increased awareness of the magnitude of these costs and the role of political geography in shaping them is critical,” said Bodey.

“Understanding the importance of investing in management, such as in biosecurity, and that current spending is still insufficient in many cases can shape future investments to reduce pressures on limited financial resources and improve both socioeconomic sectors and ecosystems.”

More information:
Thomas W. Bodey et al., The economic costs of protecting islands from invasive alien species, Conservation Biology (2022). DOI: 10.1111/cobi.14034

Provided by the University of Aberdeen

Quotation: Political geography key to assessing economic costs of invasive pests on islands (2022, 1 December), retrieved 1 December 2022 from https://phys.org/news/2022-12-politik-geografi-key- Ekonomi-invaziv.html .

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