Are the morphometrics of chelicerae correlated with diet in mesostigmatid mites (Acari)?
- 1) Lehrstuhl Tierökologie I, University Bayreuth, Postfach 10 12 51, D-8580, Bayreuth, Germany
Gamasid mites are prominent predators of soil communities. Some species are said to be specialized predators feeding on nematodes or arthropods. A conspicuous difference between species is the structure of the chelicerae. We test the hypothesis that measurable attributes of the chelicerae are related to diet. We measured ten morphometric parameters of the chelicerae from 52 species within 29 genera. For 28 species and 26 genera we were able to extract food preferences from the literature and own observations. We found some weak indications that arthropod predators have proportionally larger chelicerae compared to similar-sized species feeding on nematodes or other worm-like diets. The latter are characterized by a larger number of teeth along the digitus fixus and digitus mobilis.
- 1 - sciences appliquees, technologies et medecines
- 2 - sciences biologiques et medicales
- 3 - sciences biologiques fondamentales et appliquees. psychologie
- 4 - psychologie. psychophysiologie
- 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Insect Science
- 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
- 1 - Health Sciences ; 2 - Medicine ; 3 - General Medicine