Préférences Alimentaires de<i>Schistocerca gregaria</i>(Forsk., 1775) à l'état Solitaire dans les Biotopes du Sud Algérien

The diversity of the diet of grasshoppers (Acrididae, Orthoptera) is related to multiple factors, including the chemoreceptors on the antennae, palps and on the epipharyngeal face of the labrum. In the present study, we sought to understand the nature of the diet of 12 Moroccan acridian species and to try to relate various aspects of their diet to the number of labrum sensilla. If the effect of the labrum size on the number of sensilla is removed, four groups of species are recorded: (i) polyphagous species with a broad diet and numerous sensilla; (ii) polyphagous species with a graminivorous diet and numerous sensilla; (iii) oligophagous species feeding exclusively on Poaceae and with a medium number of sensilla; and (iv) strictly monophagous species feeding on a single plant species and with the smallest number of sensilla. These observations show the close relationship between the diet and the number of labrum sensilla. However, Sphingonotus rubescens, a polyphagous species, is an exception to this trend as it harbours a medium number of sensilla. We propose that the modification in the number of labrum sensilla is a result of a progressive adaptation to a different diet and does not represent its cause.

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Dietary diversification and variations in the number of labrum sensilla in grasshoppers: Which came first?

Zaim

Petit

Elghadraoui

2013

J Biosci

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Analysis of the number of sensilla on the labrum and the diet of grasshoppers belonging to the family Pamphagidae (Orthoptera)

Benkenana¹,

Harrat²,

Petit³

2013

Eur. J. Entomol.

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Préférences Alimentaires deSchistocerca gregaria(Forsk., 1775) à l'état Solitaire dans les Biotopes du Sud Algérien

Cited by 2 publications

References 5 publications

Dietary diversification and variations in the number of labrum sensilla in grasshoppers: Which came first?

Dietary diversification and variations in the number of labrum sensilla in grasshoppers: Which came first?

Analysis of the number of sensilla on the labrum and the diet of grasshoppers belonging to the family Pamphagidae (Orthoptera)

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