Native eastern fence lizards changed their bodies and behavior in response to invasive red imported fire ants - The Conversation Indonesia
An eastern fence lizard basking in the sun feels a small red ant walk over its back. Not hungry, it ignores the insect. Soon there are lots of ants crawling up its legs, biting the scales that usually protect it and inserting their stingers in its soft underlying flesh. Not having evolved with this threat, the lizard adopts its typical defensive posture of lying flat and closing its eyes, counting on its natural camouflage to protect it. This can be a deadly decision, though. As few as 12 of these ants can kill an adult lizard in less than a minute. A male fence lizard showing off his throat and abdominal badges. Tracy Langkilde , CC BY-ND Such interactions are now common in the southeastern United States, where native animals such as eastern fence lizards ( Sceloporus undulatus ) have shared their habitat with the invasive red imported fire ant ( Solenopsis invicta ) for decades. Our ...