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The great raft spider or fen raft spider (Dolomedes plantarius) is a European species of spider in the family Dolomedidae. 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.
Dolomedes / d ɒ l ə ˈ m iː d iː z / is a genus of large spiders of the family Dolomedidae.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.
Fen Raft spiders were near extinction 14 years ago - but now they’re making a comeback Giant spider population booms in UK as species the size of rats enjoy record mating season Skip to main content
The raft spider, scientific name Dolomedes fimbriatus, is a large semi-aquatic spider of the family Dolomedidae found throughout north-western and central Europe. [2] It is one of only two species of the genus Dolomedes found in Europe, the other being the slightly larger Dolomedes plantarius which is endangered in the UK.
Thousands of spiders were released into the wild after a breeding programme at Chester Zoo.
Crumbley explains that control of spiders comes in two forms: knocking down webs and removing their food sources: Webs can be knocked down with brooms or long dusting wands.
An endangered species is "a species at risk of extinction because of human activity, changes in climate, changes in predator-prey ratios, etc., especially when officially designated as such by a governmental agency such as the U.S. Fish and Wildlife Service". [1]
So, moving on, spiders consume about 10 percent of their body weight per day. (If you weigh 200 pounds, imagine eating 20 pounds of meat daily.