Variation of ommatidia number as a function of worker size inCamponotus pennsylvanicus (DeGeer) (Hymenoptera: Formicidae) |
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| Authors: | J. H. Klotz B. L. Reid W. C. Gordon |
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| Affiliation: | (1) Center for Urban and Industrial Pest Management, Departement of Entomology, Purdue University, 47907-1158 West Lafayette, IN, USA;(2) Department of Ophthalmology, LSU Medical School, 2020 Gravier St. - Suite B, 70112 New Orleans, LA, USA |
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| Abstract: | Summary The relation of worker size to ommatidia number was examined in the polymorphic antCamponotus pennsylvanicus (DeGeer). Linear regression described this relationship as:Y = 260.9 + 113.6×; whereYis ommatidia number andX is head width. A log-log regression described this relationship as:Y = 323.5 + 286.9*logX(r2 = 0.98). This analysis indicated an allometric relation of ommatidia number to head width, where ommatidia numbers increase at a slower rate than head width. This relationship is discussed in terms of ethotypes associated with worker morphotypes, and the possible mechanisms regulating polymorphic development. |
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| Keywords: | Camponotus pennsylvanicus compound eye ommatidia number Polymorphism caste development |
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