Effects of Temperatures and Rainfall Variability on the Abundance and Diversity of Caelifera (Insecta, Orthoptera) in Three Natural Environments in the Mzab Valley, Septentrional Sahara (Algeria)

The climatic condition is assumed as the main factor responsible for development and survival of insects; this investigation was conducted to study the responses of Caelifera to temperatures and precipitation variations during 2017 in three natural environments of Mzab Valley, Ghardaïa, Algeria. A t...

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Bibliographic Details
Main Authors: Youcef Zergoun, Omar Guezoul, Makhlouf Sekour, Noureddine Bouras, Michael D. Holtz
Format: Article
Language:English
Published: Institution of the Agricultural Research and Higher Education 2018-12-01
Series:Tunisian Journal of Plant Protection
Subjects:
Online Access: http://www.tjpp.tn/SiteWeb/CurrentIssue/TJPP13_2/5BourasAlgerie.pdf
Description
Summary:The climatic condition is assumed as the main factor responsible for development and survival of insects; this investigation was conducted to study the responses of Caelifera to temperatures and precipitation variations during 2017 in three natural environments of Mzab Valley, Ghardaïa, Algeria. A total of 22 grasshopper species were collected, representing four families and eight subfamilies. The subfamily Oedipodinae was the dominant, followed by Pyrgomorphinae and Thrinchinae. Two species: Sphingonotus rubescens and Sphingonotus savignyi occurred frequently in the three sites. However, only one accidental species, Eunapiodes sp. was found. According to our observations, it is clear that the grasshopper diversity was higher in July and August coinciding with the increase in temperature. In such conditions, the precipitation has less influence on species diversity
ISSN:1737-5436
2490-4368