Elephants, buffaloes and other heavy herbivores are effective against invasive plants. This is the conclusion of a new study that used Indian data, including data from the world's largest survey of wildlife based on camera traps. But smaller animals can do the same: you don't need elephants to get the same effect, the researchers point out.
Large herbivores can protect local nature by eating and trampling on biodiversity-threatening invasive plant species.
At least it works in India, where the researchers gathered their data. More specifically from the world's largest wildlife survey using camera traps, which takes place every four years, as well as India's extensive monitoring programme for plants. These biological invasions also impose enormous costs on society, and more than USD 120 billion has been spent world-wide over the last 50 years on combating and controlling them. Without any great success.Because their large size means that they have to eat a lot. And they are used to eating many different plant species, even species with less nutritional value, because they simple cannot afford to be picky. Therefore, they are more likely to include unfamiliar plants in their diet.
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