True spiders inhabiting ornamental trees and perennial plants

الملخص EN

Spiders are abundant and widespread in almost all ecosystems and constitute one of the most important components of global biodiversity.

The aim of this research work is to clarify the relationship between spider density, diversity and habitat structure.

The effects of vegetation structure on communities of spiders by comparing the spider fauna on tree species (Sevrinia, dombeya and feijoa), flowering annuals (Crinum) and evergreen herbs (Pelargonia).

The number of collecting spiders found in ground under each tree were 33 and 42 individuals, while those in foliage were 30 and 12, respectively.

The number in flowering annuals (Crinum) and evergreen herbs (Pelargonium) was 37 and 45 in ground and 11 and 41 in foliage.

The importance of activity density in determining the composition of each group is discussed relative to structural differences of the trees , flowering annuals (Crinum) and evergreen herbs (Pelargonium).