THE ANIMAL FILES

Florida carpenter ant

Camponotus floridanus

An ant’s food supply includes partners living inside its gut.

Florida carpenter ants use sugary foods and arthropod prey. Symbiotic bacteria contribute to their nutrition, while experiments on injured workers reveal different responses to different wounds. Both relationships operate at a scale far smaller than the visible nest.[1]

Follow the evidence ↓
Florida carpenter ant
Image: April Nobile · Commons · CC BY 4.0
Foods
Nectar, honeydew and arthropod material[1]
Gut partner
Blochmannia bacteria[1]
Social response
Wound care differs with injury location[1]

Sugar and animal food

Sugary secretions from aphids provide one food source, and ants may tend and defend those insects. Arthropod foods supply another component. Calling the ant omnivorous captures this combination; it does not mean every nest collects the same proportions from identical surroundings.[1]

Recycling nutrients inside

Blochmannia bacteria live in specialised cells of the midgut and help supplement a nitrogen-poor diet. Recycling nitrogen-containing waste into usable amino acids is part of the described partnership. Increased bacterial abundance during pupation suggests further developmental roles, but those should remain a research inference rather than a proven explanation of every change.[1]

Care depends on the wound

Experiments found that nestmates amputated injured legs in response to wounds on the femur, the upper leg segment. Amputation improved survival after femur injuries, but not after tibia injuries farther down the leg. Workers adapted their care to wound location.[1]

A COMMON MIX-UP

Do these ants respond identically to every leg wound?

No. Experiments found location-dependent care and outcomes.[1]

TRY A LITTLE REASONING

Why distinguish survival after different injury locations when testing wound care?

Reveal the explanation

The same action can have different effects depending on injury, so combining all wounds could hide that difference.[1]

Sources & editorial notes

Adapted and translated from the cited Wikipedia revisions, with source-linked reasoning. Image credit and licence are listed separately above.

Adapted and translated from Wikipedia contributors; exact revisions are linked below. CC BY-SA 4.0

  1. Wikipedia contributors — Camponotus floridanus (adapted and translated; exact revision)
  2. NCBI Taxonomy — Camponotus floridanus (identity and game lineage)

Last fact check:

One discovery leads to another

Red imported fire antWorkers differ in proportions, not just in overall size.Solenopsis invicta ↗European hornetA paper nest starts as chewed plant material.Vespa crabro ↗Western honey beeA flower patch can become a set of dance directions.Apis mellifera ↗