Tadpoles of Xenopus laevis, a model organism native to South Africa
3 tadpoles in a small container with no food or waste material in it-
Resting: movement stops, no observable movement
Swimming: lifts tail and uses it to move around the environment
Bumping: While swimming, seemingly frantically, one tadpole while swim into another tadpole which then begins to swim quickly away
Breathing: Opening and closing mouth, staying still while doing this.
Instantaneous Scan Sampling with above parameters: 15 seconds between sampling
Resting occurs against a wall unless specified*
Scan sampling of the same 3 tadpoles as above in the same environment, with a video:
-Tadpoles identified as 1, 2, and 3
-Resting if not specified is on its ventral surface
*Tadpole 3 was not dead as it moved when touched and at many times after this observation
Tadpoles were put into container with food and some waste:
-More frequent breathing, could have been due to the stress of the transfer
-All tadpoles moved much more when food was present, even when not eating
-When encountering a larger food particle, a tadpole would bump into it.
Were the tadpoles truly more active when in the presence of food?
The tadpoles locomote more often than they rest when around food..
If tadpoles locomote more often than they rest when around food, then tadpoles in a food rich environment will rest less and locomote more than tadpoles in a food deprived environment.