LES INSECTES DANS LE MENU TROPHIQUE DES JEUNES MOINEAUX DANS LA PALMERAIE DE KHOZANA (OUARGLA SAHARA ALGERIEN).

Abstract

The study of the trophic menu of the young people To pass domesticus X P. hispaniolensis is carried out for the first time in a palm plantation with 80 of Ouargla (34° 54 ' NR., 5° 20 ' E.). The analysis of the stomachic contents made it possible to identify 347 preys consisted a large fraction of insects in the young sparrows belonging to four categories of ages (100% for let us oisillons sparrow old from 1 to 3 days, 93.9% for the old individuals from 4 to 6 days, 99.0% for let us oisillons from 7 to 9 days and 97.7% for those from 10 to 12 days). The species about Lepidoptera are most intensely consumed by the four categories of age is the young people from 1 to 3 days (59.6%), from 4 to 6 days (78.8%), from 7 to 9 days (83.3%) and from 10 to 12 days (63.6%). Let us young from 1 to 3 days devour apart from Lepidoptera, of Heteroptera with a rate of 34.6%. In the same way the young people of the second category ingurgitent in addition to Lepidoptera, Heteroptera (7.6%) and Oligocheta (6.1%). The old chicks between 7 and 9 days introduce in addition to Lepidoptera, Heteroptera and Coleoptera each one with a rate of 6.3%. The last category of the young people consume in addition to the Lepidoptera, of the Coleoptera (18.2%).