Brachymyrmex - Alex Wild Photography
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Brachymyrmex patagonicus workers take nectar from a barrel cactus.  Cacti provide ants with food in exchange for protection from pests, but non-native species such as these rover ants may not provide the same level of protection as do native ants.

Tucson, Arizona, USA

Brachymyrmex patagonicus workers take nectar from a barrel cactus. Cacti provide ants with food in exchange for protection from pests, but non-native species such as these rover ants may not provide the same level of protection as do native ants. Tucson, Arizona, USA

Brachymyrmex patagonicusbrachymyrmexformicinaeformicidaeinsectsinsectantsrover antsrover antblack rover anttiny antsmall antsintroduced speciesexotic antstramp antstramp antinvasive speciesbiological invasionecologyextrafloral nectariesnectarmutualismant plantants and plantscactusferrocactus