Download e-book for iPad: A walk around the pond: insects in and over the water by Gilbert Waldbauer

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 skin stress; a massive water computer virus dives lower than, 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 notice the main amazingly varied population of the freshwater global. In his hallmark companionable sort, Waldbauer introduces us to the aquatic bugs that experience colonized ponds, lakes, streams, and rivers, in particular these in North the USA. alongside the best way we know about the varied kinds those arthropods take, in addition to their impressive modes of life—how they've got radiated into each that you can imagine area of interest within the water atmosphere, and the way they deal with the demanding situations such an atmosphere poses to breathing, imaginative and prescient, thermoregulation, and replica. We come across the caddis fly larva development its protecting case and camouflaging it with move detritus; eco-friendly darner dragonflies mating midair in an acrobatic wheel formation; ants that experience tailored to the tiny water setting inside a glass plant; and bugs whose variations to the aquatic way of life are furnishing biomaterials engineers with rules for destiny functions in and purchaser items. whereas studying concerning the evolution, common historical past, and ecology of those bugs, readers additionally notice greater than a bit in regards to the scientists who examine them. (20060630)

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Additional resources for A walk around the pond: insects in and over the water

Sample text

Rate wildly on the surface as they scavenge insects that fall onto the water, but the larvae are fierce predators that hunt on the bottom. A few of the Hydrophilidae, water scavenger beetles, live in dung, but the great majority are aquatic. Adults, competent swimmers, are mainly scavengers, but most larvae are predators. A few riffle beetles (family Elmidae) live in ponds or lakes, but most of these tiny plant eaters crawl on the bottom or on plants in cold, fast-flowing streams. The behavior of the beetles of the family Haliplidae is described by their common name, crawling water beetles.

If the oil happens to come in contact with any other part of its body the fly is at once trapped in the oil with no hope of escape. Thorpe did not know why the flies are not trapped by the sticky oil. He guessed that they were protected by unknown glandular secretions from hairs on their feet. Life in the water is impossible unless an organism has some way to obtain oxygen, the essential gas of life for all or- 54 Where They Live ganisms, with the exception of certain (anaerobic) bacteria. In all animals, including humans, insects, and even the lowliest worms, oxygen is an indispensable element in the metabolism of nutrients—carbohydrates, fats, proteins—which releases the energy that sustains life and fuels activities such as walking, swimming, and flying.

While most odonate nymphs inhabit streams, lakes, or ponds, the giant damselflies and their few relatives live in small bodies of water held in various parts of plants. Giant damselflies occupy water-filled tree holes in the trunks or branches of trees. Tree holes in the wet tropics harbor a diverse community of animals, among them predators such as giant damselfly and dragonfly nymphs and even a mosquito larva that eats mainly other mosquito larvae. The most abundant and ubiquitous prey in these tree holes is mosquito larvae.

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A walk around the pond: insects in and over the water by Gilbert Waldbauer


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