Download PDF by Gilbert Waldbauer: A Walk around the Pond: Insects in and over the Water

By Gilbert Waldbauer

ISBN-10: 0674022114

ISBN-13: 9780674022119

ISBN-10: 0674027655

ISBN-13: 9780674027657

A water strider darts throughout a pond, its ft dimpling the outside rigidity; an enormous water computer virus dives under, wearing his mate’s eggs on his again; hidden between plant roots at the silty backside, a dragonfly larva stalks unwary minnows. slightly skimming the skin, within the air above the pond, swarm mayflies with diaphanous wings. Take this stroll round the pond with Gilbert Waldbauer and observe the main amazingly various population of the freshwater global.

In his hallmark companionable variety, Waldbauer introduces us to the aquatic bugs that experience colonized ponds, lakes, streams, and rivers, in particular these in North the United States. alongside the way in which we find out about the various types those arthropods take, in addition to their outstanding modes of life—how they've got radiated into each that you can think of area of interest within the water atmosphere, and the way they take care of the demanding situations such an atmosphere poses to breathing, imaginative and prescient, thermoregulation, and replica. We stumble upon the caddis fly larva construction its protecting case and camouflaging it with circulation detritus; eco-friendly darner dragonflies mating midair in an acrobatic wheel formation; ants that experience tailored to the tiny water surroundings inside of a glass plant; and bugs whose diversifications to the aquatic way of life are furnishing biomaterials engineers with principles for destiny functions in and customer items.

whereas studying in regards to the evolution, normal heritage, and ecology of those bugs, readers additionally become aware of greater than a bit concerning the scientists who research them.


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Extra info for A Walk around the Pond: Insects in and over the Water

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Fashing discovered that in the spring, when adult Mallotas are busy flying from tree to tree—when the “bus service” is good—the mites transform to a life stage with legs anatomically specialized for hitching rides and holding on. As I said, the mite will survive only if the fly survives. Fortunately for the mites, the flies’ chances for survival are enhanced because these flies trick birds into not attacking and eating them, as I will explain later. Mosquitoes, because some are an aggravating nuisance and some transmit diseases such as malaria and West Nile fever, are the most studied and best known of the aquatic insects.

They are adult females searching for victims—the eggs of backswimmers, damselflies, predaceous diving beetles—that will be shelter and food for their parasitic larval offspring. With their piercing ovipositors (egg-laying organs) they insert one or more eggs into each of many host eggs, up to 50 into one egg of a large predaceous diving beetle. The larvae eat the yolk, pupate in the shell of the host egg, and emerge into the water as adults that absorb Who’s Who in the Water 25 dissolved oxygen through their skin.

There are alternatives to destroying the marshes. The most promising is to help and encourage native predators of mosquito larvae that already inhabit salt marshes. Among them are the little killifish, or mummichogs, that live in permanent pools in the marsh. Mosquito larvae do not survive in these pools because the fish eat them, but they thrive in temporary tidal pools not inhabited by killifish. In the 1930s, engineers, apparently not aware of the ecological importance of marshes, tried to control salt marsh mosquitoes by draining the marshes with a rectilinear grid of straight, regularly spaced ditches.

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A Walk around the Pond: Insects in and over the Water by Gilbert Waldbauer

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