Un­in­tended ben­e­fi­cia­ries

Down to Earth - - SCIENCE - WILDLIFE COR­RI­DORS

are tracts of nat­u­ral land that con­nect habi­tats di­vided by agri­cul­tural or other hu­man ac­tiv­i­ties. Th­ese are set up to pro­mote spread of na­tive species. But such cor­ri­dors can also lead to spread of in­va­sive species. A study in Florida, US, found that polyg­yne fire ants (a type of slow-mov­ing fire ants) were able to use wildlife cor­ri­dors to spread and dom­i­nate the habi­tat. The study in­di­cates it is cru­cial to study traits of likely in­va­sive species be­fore set­ting up a cor­ri­dor. Ecol­ogy, Au­gust 2014

Newspapers in English

Newspapers from India

© PressReader. All rights reserved.