Comparison of Male and Female Morphometric Indices of the 3-Spot Form of Calliptamus barbarus (Costa, 1836), (Orthoptera: Acrididae: Calliptaminae) in Three Areas in The Jijel Region (Northeast Algeria)

Document Type : Original Article

Authors

1 Department of Environment and Agronomic Science, Faculty of Life Science, University of Jijel, Algeria

2 Department of Environment and Agronomic Sciences, University of Jijel (Algeria)

Abstract

To carried out this study, three stations were chosen These are Texenna, Kissir and Jijel.11 parameters were taken into account for each individual: Total body Length TL, Length of Elytra EL, Length of Femur FL, Width of Femur FW, Width of Head HW, Width of Pronotum PW, Total Femoral Area TFA  and Area of Femoral Spots AFS as well as comparisons of FL / FW, EL / FL, and TFA/AFS. In order to analyze the results, the following statistical parameters are used:  correlation and conformity test, regression line, and analysis of variance.
            The correlation between different parameters was initially low, then average, and finally strong. The conformity test gives values obst > t 0.95 between FL/ FW in the females of Texenna and between the males in the 3stations. The same observation is made for the EL/FL in females in the 3 stations and in Texenna males. The difference is not significant between these 2 parameters. The conformity test gave values obs t               Despite their apparent differences in size (8 out of 11 parameters gave non-significant differences), we can conclude that the 3 populations living in the Jijel region belong all to a single homogeneous group: the form with 3 femoral spots showing a clear heterogeneity with that of semi-arid bioclimate who contain individuals with big size and having only one femoral spot.

Keywords