The border wall snaking along the US-Mexican border was built to keep migrants out -- but conservationists say the towering metal barrier also stops wildlife from moving between natural habitats.
Alarmed by the impact on animals including jaguars, bears and mountain lions, activists from the United States and Mexico have joined forces to try to protect the biodiversity corridor.
"This part of the border is one of the most interesting places in North America," said Valer Clark, founder of the transfrontier wildlife organization Cuenca Los Ojos (CLO).
Bears, mountain lions, deer, bighorn sheep and coatimundis are among the animals roaming the arid lands of southern Arizona and the northern Mexican state of Sonora, she told AFP.
One family of boars spent five hours trying to get past the wall in search of water, said Jose Manuel Perez, CLO's conservation director.
Border lighting meanwhile deters nocturnal animals and can cause migratory birds that navigate by moonlight or starlight to lose their way, environmentalists warned.
The barrier, which stretches across almost all of Arizona's southern edge, "greatly affects" the migration of animals, Perez said.
CLO is calling for the removal or modification of the parts of the border wall that cause the most harm to wildlife, and for the restoration of all cross-border rivers.
It is more than 40 years since Clark moved to a cattle ranch in southwestern Arizona, where the New Yorker said she fell in love with the wide open spaces.
The region may look barren, but in fact "it's full of important wildlife and diversity," said Eamon Harrity, wildlife project manager at the Sky Island Alliance, another conservation group active in the area.
"The development of a large human barrier has repercussions," he said.
str-sem-st-dr/mca
© Agence France-Presse
Your content is great. However, if any of the content contained herein violates any rights of yours, including those of copyright, please contact us immediately by e-mail at media[@]kissrpr.com.