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).
Since the mosquitoes can detect the backswimmer
's kairomones from above the water's surface, predator-released kairomones can reduce the mosquito's immediate risk of predation, said Cohen.
As the backswimmer
hovers, oxygen in its bubble starts to decrease.
can keep air in its special bubble for four minutes.
Size-limited predation on larval Rana areolata (Anura: Ranidae) by two species of backswimmer
(Insecta: Hemiptera: Notonectidae).
Locomotion and predatory strategy in backswimmers
Details: www.bmag.org.uk POND LIFE FROM 11am-12.30pm 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
. Kids will learn how to build an ant farm, spider house, bee box, wormery, and other habitats for bugs.
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.