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 E-Mail Invasive alien species - harmful species introduced by human activity to an area in which they are not native - are estimated to cost the African agricultural sector $3.66 trillion per year - approximately 1.5 times the gross domestic product of all African countries combined. The findings are published in the open access journal CABI Agriculture and Bioscience. A team of researchers from CABI, in Ghana, Kenya, the UK and Switzerland, estimate that the average cost of invasive alien species to the agricultural sector of each African country is $76.3 billion per year. However, substantial variation exists between countries with costs of $1 trillion in Nigeria, $317 billion in the Democratic Republic of the Congo, $248 billion in Niger and $229 billion in South Africa. The combined costs for Djibouti, Equatorial Guinea and Guinea-Bissau are estimated to be $82 million per year. Economic losses caused by invasive alien species were found to exceed the gross domestic produc

Guinea bissauDemocratic republic of the congoUnited kingdomSouth africaEquatorial guineaDeborah kendall cheesemanDemocratic republicMalaria journalSpringer natureகினியா பிசாவுஜனநாயக குடியரசு ஆஃப் தி காங்கோஒன்றுபட்டது கிஂக்டம்பூமத்திய ரேகை கினியாடெபோரா கெஂடெல் சீஸ்மேன்ஜனநாயக குடியரசுமலேரியா இதழ்