As tawny crazy ants Nylanderia fulva invade the southern Uni
Solution
Explanation:-
1. The scientific name of tawny crazy ants is Nylanderia fulva (N.fulva).
2. The N. fulva invade the Southern united states, and they have displaced Solenopsis invicta (Fire ants).
3. When the S. invicta venom comes in contact with N. fulva, it secretes certain secretions form the abdominal(relating to stomach) exocrine gland to its S.invicta cuticle(outer covering). Bioassay (measurement of the concentration) reveals that the secretion from N.fulva detoxify (removes toxin) from the S.invicta.
4. Usually, the formic acid is present in the secretion which acts as detoxifying agent.
5. N.fulva exhibits this detoxification behaviour with other ants as well but the intensity is most with S. invicta. This may be due to their same habitat i.e. American native range.
6. The capacity of N.fulva to detoxify S.invicta shows its ability to displace S.invicta population.

