Download Ecology (DK Eyewitness Books) by Brian Lane, Steve Pollock PDF

By Brian Lane, Steve Pollock

Here's a unbelievable, thought-provoking, and hugely informative consultant to the attention-grabbing tale of ecology. exceptional colour photos of animals, vegetation, and ecosystems exhibit the tips and discoveries that experience replaced our realizing of lifestyles round us. See how vegetation shop their meals provide, how dung enriches the soil, how biodiversity is measured, the wear as a result of acid rain, and a field-digger wasp shooting a fly. learn the way crops create their very own meals, how and while the world's human inhabitants "exploded", how your again backyard offers a small-scale version of existence everywhere in the Earth. notice the hyperlinks within the beach meals chain, how the buffalo was once kept from extinction, why bugs resembling locusts are topic to inhabitants explosion, typical pest regulate, and lots more and plenty, even more!

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Sample text

Sycamore seeds have wings that allow the wind to carry them away as they fall. On the forest floor, mosses grow on rotting branches, and the annual fall of leaves – around 3 tonnes per hectare (2,600 lb per acre) – provides food for other organisms, such as the fungi and tiny animals that break all this down and recycle the nutrients. Honey fungus Moss Herb layer has plants that can cope with low light levels Litter layer has plants that thrive in moist, shady conditions Topsoil Subsoil Bedrock DECIDUOUS LAYERS Light levels decrease as one moves down from the canopy to the forest floor.

An animal that eats reptiles must deal with a dinner that tends to be muscular and well equipped with teeth or fangs. The Harris’ hawk has powerful talons to grip its squirming prey, and long legs with protective scales to keep its body out of harm’s way. Protective scales Wide tail to control gliding Powerful talons Protective spines DUNE DWELLER All deserts have small rodents which, like this kangaroo rat, can survive without drinking. They obtain their moisture from the seeds they eat, and avoid wasting water by producing a very concentrated urine.

The blue-ringed angel fish is typical of those fish that live among the coral heads, having a deep slim body that allows it to glide through narrow slits. There is no need for a powerful tail, since it escapes from predators not through speed but by hiding in the reef’s many crevices. In this colourful environment, many species make use of colour for communication and species recognition, to attract potential mates, and to threaten one another over territorial disputes. 4 m (8 ft) and is found around the edges of reefs.

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