Silk threads cover landscapes after floods

Millions of silk threads covered trees, fences, and cars in parts of Australia following devastating floods in 2021. Entire fields appeared transformed into white ice rinks, with silk stretching from the ground to the sky.

Spiders use ballooning to escape floods

In Victoria, sheet-web spiders fled their flooded habitats by weaving giant webs to survive. The spiders used a process called "ballooning," where they climb to a high point and release silk threads that catch the wind to fly to drier areas.

Local official witnesses unusual sight

Local council member Carolyn Crossley discovered the silk-covered landscape four days after the start of the storms in the area between Sale and Longford, in Gippsland. The landscape had a ghostly appearance, with silk sheets stretching as far as the eye could see, covering the vegetation like a light shroud shimmering under the light.

Experts explain spider behavior

Ecologist Dieter Hochuli from the University of Sydney explained that the spiders normally live on the ground and have no choice but to seek refuge elsewhere quickly. Postdoctoral researcher Lizzy Lowe from Macquarie University confirmed that when water floods their burrows, the spiders must evacuate en masse.

Ballooning process described

The Australian Museum describes the ballooning process: the spider climbs to a high point in the vegetation and releases fine silk threads that catch even the slightest breeze, lifting the spider into the air. Entomologist Ken Walker from the Melbourne Museum noted that this phenomenon remains semi-regular in Victoria, particularly in winter when precipitation reaches its peak.

Similar event in New South Wales

A similar event had been observed near Wagga Wagga, in New South Wales, where 8,000 people had to evacuate before the waters receded. Graham Milledge, head of entomology collections at the Australian Museum, described this behavior as typical ballooning, a collective escape response to rising water.