Sunday, 23 March 2014

Economic impacts

I would like to write more about Fernando de Noronha but I saw some awesome articles showing the economic impacts of invasive/exotic species. As we know, "money moves the world" and now I will present some data that may make the eyes of investors and authorities around the world turn to the environment, considering that the ecological appeal does not always work.

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In 2005 in the United States some researchers estimated that more than 120 billion of dollars would be spent because of Invasive species (Pimentel et al., 2005).

In Brazil is estimated by the scientists that more than 42,6 billion of dollars is spent every year just related with algae, mites and invasive plants in crops (Pimentel et al., 2001).

Around the world the losses in agriculture were estimated in 248 billion of dollars per year (Bright, 1999), today this number can be biggest.

Actually, if we consider the money used to avoid disease propagation such as dengue these numbers are inestimable whereas they looked only at agriculture.




Works cited:

BRIGHT, C. Invasive species: pathogens of globalization. Foreign Policy Fall, v. 1999, p. 50–64, 1999.


PIMENTEL, D.; McNAIR, S.;, JANECKA, J.; WIGHTMAN, J.; SIMMONDS, C.; O’CONNELL, C.; WONG, E.; RUSSEL, L.; ZERN, J.; AQUINO, T.; TSOMONDO, T. Economic and environmental threats of alien plant, animal, and microbe invasions. Agriculture, Ecosystems e Environment, v. 84, p. 1–20, 2001.

PIMENTEL, D.; ZUNIGA, R.; MORRISON, D. Update on the environmental and economic costs 
associated with alien-invasive species in the United States. Ecological Economics, v. 52, 2005. 

3 comments:

  1. Those amounts are indeed quite an eye-opener! It’s astounding that so much money is spent each year on trying to control invasive species. Do you have an idea how much Australia spends on invasive species control each year? Very informative blog.

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    Replies
    1. According to Australian Bureau of Statistics 30 species of animals (pests) were estimated to cost the economy at least $420m a year, but the weed damage is to much bigger, they estimated that weeds have a cost of $3.3b each year in lost agricultural production and control costs during the early 1990s (imagine this number now).

      Informations:
      http://www.abs.gov.au/Ausstats/abs@.nsf/94713ad445ff1425ca25682000192af2/0542A2BDF511788BCA256BDC00122411?opendocument

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  2. So that's where we should be looking for jobs... :-)

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