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The great raft spider or fen raft spider (Dolomedes plantarius) is a European species of spider in the family Pisauridae. Like other Dolomedes spiders, it is semiaquatic, hunting its prey on the surface of water. It occurs mainly in neutral to alkaline, unpolluted water of fens and grazing marsh.
Fen Raft spiders were near extinction 14 years ago - but now they’re making a comeback
Thousands of "giant spiders" which were released into the wild by a zoo are thriving in the wild and have had a record mating season, conservationists have said. Chester Zoo released the spiders a ...
Another species making a comeback in the UK is the fen raft spider, one of the UK’s largest spiders which hunts its prey on the water’s surface, and which has been helped by introductions to ...
Dolomedes / d ɒ l ə ˈ m iː d iː z / is a genus of large spiders of the family Pisauridae.They are also known as fishing spiders, raft spiders, dock spiders or wharf spiders.Almost all Dolomedes species are semiaquatic, with the exception of the tree-dwelling D. albineus of the southeastern United States.
Juvenile raft spider. Raft spiders are semi-aquatic and adults inhabit freshwater wetlands, specifically wet heaths and acid swamps; [4] although juveniles are predominantly found in terrestrial vegetation surrounding wetland areas. [4] Adults are dark brown with a conspicuous white, cream or yellow stripe along both sides of their abdomen and ...
According to Discover Wildlife, fen raft spiders tend to eat other spiders, damselflies, dragonfly larvae, and tadpoles. The spiders are brown and have white or cream stripes along their bodies.
The great raft spider is a declining species and is listed as vulnerable. It occurs throughout Europe but a lack of records make assessment of the species difficult. In the UK there are only three known populations, one stable, one threatened and one not assessed.