International day for biological diversity -- may 22
Invasive alien species are plants, animals, pathogens and other organisms that are non-native to an ecosystem, and which may cause economic or environmental harm or adversely affect human health.Since the 17th century, invasive alien species have contributed to nearly 40% of all animal extinctions for which the cause is known
threat
Invasive alien species exacerbate poverty and threaten development through their impact on agriculture, forestry, fisheries and natural systems, which are an important basis of peoples’ livelihoods in developing countries. This damage is aggravated by climate change, pollution, habitat loss and human-induced disturbance.
Is all alien invasive ?
NO ! For a species to become invasive, it must successfully out-compete native organisms for food and habitat, spread through its new environment, increase its population and harm ecosystems in its introduced range.There are many plants which are not invasive.
Dont repeat History !!!
History is rich with tales of the disastrous outcomes of some intentional introductions such as that of the Nile Perch, which resulted in the extinction of more than 200 other fish species. Careless behavior leads to unintentional introductions. So-called ‘accidents’ now account for the majority of successful invasions.
what can we do ?
awareness about invasive alien species is needed to reach public.
Once you are in the know, remove invasive plants from your land and replace them with alternative non-invasive plants suited to your site and needs.
know more
also this article on hindu
Invasive alien species are plants, animals, pathogens and other organisms that are non-native to an ecosystem, and which may cause economic or environmental harm or adversely affect human health.Since the 17th century, invasive alien species have contributed to nearly 40% of all animal extinctions for which the cause is known
threat
Invasive alien species exacerbate poverty and threaten development through their impact on agriculture, forestry, fisheries and natural systems, which are an important basis of peoples’ livelihoods in developing countries. This damage is aggravated by climate change, pollution, habitat loss and human-induced disturbance.
Is all alien invasive ?
NO ! For a species to become invasive, it must successfully out-compete native organisms for food and habitat, spread through its new environment, increase its population and harm ecosystems in its introduced range.There are many plants which are not invasive.
Dont repeat History !!!
History is rich with tales of the disastrous outcomes of some intentional introductions such as that of the Nile Perch, which resulted in the extinction of more than 200 other fish species. Careless behavior leads to unintentional introductions. So-called ‘accidents’ now account for the majority of successful invasions.
what can we do ?
awareness about invasive alien species is needed to reach public.
Once you are in the know, remove invasive plants from your land and replace them with alternative non-invasive plants suited to your site and needs.
know more
also this article on hindu
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