1.Orb-weaver spiders** are members of the family Araneidae . They are the most common group of builders of spiral wheel-shaped webs often found in gardens, fields, and forests. The English word orb can mean “circular”, hence the English name of the group.
2. Ballooning , sometimes called kiting , is a process by which spiders, and some other small invertebrates, move through the air by releasing one or more gossamer threads to catch the wind, causing them to become airborne at the mercy of air currents and electric fields.
3. Theridiidae and Linyphiidae are the other major species showing ballooning besides the Araniidae family.
4. Ballooning was found to be more frequent in immature individuals, especially during the summer, in agreement with
previous studies . This can be mainly attributed to the physiological conditions immature individuals experience
during their development or immediately after hatching from the egg bag. Ballooning could be stimulated by the lack of food realized after emergence, or inferred from development based on maternal condition and resource allocation to eggs