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Interspecific Competition in Tribolium

Twelve weeks ago, we set up competition experiments using two species of flour beetle, Tribolium castaneum (abbreviated CS) and T. confusum (CF). Now, we will look at the population growth of each species when grown alone and in mixed culture and analyze the effects of competition. Remember that morphologically, the two species look very similar except in body color; CF is reddish brown in color, CS is black in color.

 

No. of CS-bb

No. of CF

Mixed

6

12

Pure

6

0

Pure

0

12

 


Image of elytra on a cicindelid (tiger beetle)


 Image of a neuropteran (green lacewing) showing two pairs of membraneous wings (basal condition for most insects)

 

 

Some other Tribolium links:

More than you ever wanted to know about rearing Tribolium beetles

Chromosome map of T. castaneum showing black body gene