The effect of density and temperature on the swimming and aggregating behaviour of the backswimmer
, Anisops deanei (Heteroptera:Notonectidae) and subsequent encounter rate with a sit-and-wait predator.
Leg segment proportions, predatory strategy and growth in backswimmers
(Hemiptera: Pleidae, Notonectidae).
As the backswimmer
hovers, oxygen in its bubble starts to decrease.
can keep air in its special bubble for four minutes.
30pm every Thursday in August, an event called Boatmen And Backswimmers
is a chance to join the Edgbaston Reservoir rangers to find out more about the various land and pond creatures on the site.
There are photo-packed chapters on wood lice, slugs and snails, aphids, caterpillars, worms, earwigs, ladybugs, spiders, crickets & katydids, pseudoscorpions, mosquito larvae, dragonfly larvae, and backswimmers
MONDAY nHunt out boatmen and backswimmers
at Plantsbrook Local Nature Reserve, off Eachelhurst Road, Erdington.
Water boatmen often are confused with backswimmers
, a family of similar-looking but larger aquatic bugs.
1992; Ravenscroft 1994; Moilanen & Hanski 1998; Bergman 1999) and backswimmers
of the genus Notonecta (Briers & Warren 2000).
In the order Hemiptera there are a large number of other species of water bugs that are commonly found in ponds, these range from herbivores like water boatmen (named for their oar-like rear swimming legs) to small predators such as backswimmers
(they swim on their backs).
Wetlands are also home to a host of species that feed on mosquitoes, including beetles, backswimmers
, water striders, dragonfly larvae, frogs, fish and a number of mosquito-eating birds.
The book covers mayflies, caddisfiles, stoneflies, midges, craneflies, aquatic worms, damselflies, dragonflies, backswimmers
, water boatmen, water beetles, terrest rials, baitfish and leeches, and crustaceans.
inhabit vegetation, primarily in permanent ponds but also in lake shallows, stream backwaters, and swamps (Hilsenhoff 1991).
The literally dozens of study systems considered include bryozoans, cladocerans, mussels, nematodes, gorillas, backswimmers
, sunfish, damselfish, hummingbirds, chickadees, oystercatchers, wagtails, snakes, lions, wildebeests, antlions, and plants.
Because their backs are shaped like the bottom of a sailboat, backswimmers
move smoothly near the top of the water.