Survey and Population Density of Land Snails under Different Conditions atQalubiaandSharkia Governorates

Gad Rady
2019 Annals of Agricultural Science, Moshtohor  
The aim of this research is study the survey and effect soil components on population density and distribution of land snails in Kafr Al-Gammal and Kafer Hamza villages (Qalubia Governorate), and Sunhot and Adleya villages (Sharkia Governorate). Survey studies revealed that four species of land snails, Monacha cartusiana, Eobaina vermiculata, Succinea putris and Cochlicella acuta were found in the two governorates. All species were found in Adleya and Kafr Al-Gammal villages, while the two
more » ... es, M. cartusiana and S. Putris ,were found in Kafr Hamza village, whereas, M. cartusiana only was found in Sunhot village. These findings indicated that the population density of land snails differed from one locality to another. The highest population was recorded in Adleya village, while M. cartusiana was the most predominant species. On the other hand, soil analysis showed that the population density of land snails were high in loam soil, especially M. cartusiana, followed by sandy loam but the population density of E. vermiculata was high in sandy loam. In addition the low population density of land snails was in silty loam. On the other hand, the chemical analysis of soil showed that the number of snails increased with the increase of calcium, while decreased with high values of pH and EC (Electrical conductivity) in soil.
doi:10.21608/assjm.2019.98138 fatcat:tiigyngg2vh4phgyfiy4z56a5i