Download e-book for iPad: A River Lost: The Life and Death of the Columbia by Blaine Harden

By Blaine Harden

ISBN-10: 0393344525

ISBN-13: 9780393344523

After twenty years, Washington Post journalist Blaine Harden back to his small-town birthplace within the Pacific Northwest to stick with the increase and fall of the West’s such a lot completely conquered river. To discover the Columbia River and befriend those that collaborated in its destruction, he traveled on a big freight barge crusing west from Idaho to the Grand Coulee Dam, the location of the river’s harnessing for the sake of jobs, electrical energy, and irrigation. A River Lost is a searing own narrative of rediscovery joined with a story of exploitation: of local american citizens, of endangered salmon, of nuclear waste, and of a once-wild river. up-to-date all through, this variation incorporates a new foreword and afterword.

Show description

Read or Download A River Lost: The Life and Death of the Columbia PDF

Best nature books

Get Last Child in the Woods: Saving Our Children From PDF

Richard Louv was once the 1st to spot a phenomenon all of us knew existed yet couldn't fairly articulate: nature-deficit illness. His e-book final baby within the Woods created a countrywide dialog concerning the disconnection among teenagers and nature, and his message has galvanized a global stream.

Exploring the World of Mammals - download pdf or read online

Offers greater than a hundred articles describing particular teams of mammals, comparable to bears, cats and canine, and households of carnivores, herbivores, or omnivores. This set illustrates life-science rules, protecting subject matters comparable to anatomy and body structure, foodstuff chains, interspecies partnerships, and rules of evolution and survival.

Download PDF by DK Publishing: The Cat Encyclopedia

Greater than 86 million american citizens personal at the least one cat (that's 10+ million greater than personal a dog). Cats are actually Americans' favourite pets.

Offering every little thing you must learn about cats in a single easy-reference quantity, The Cat Encyclopedia positive aspects wonderful photos of cat breeds from world wide mixed with specialist suggestion on kitten and cat care, and a party of cats in artwork and culture.

The Cat Encyclopedia is jam-packed with details at the features, origins, and behaviors of every kind of cat, and contains superbly photographed profiles of the world's cat breeds.

The Nature of Symbiotic Stars: Proceedings of IAU Colloquium by Jorge Sahade (auth.), Michael Friedjung, Roberto Viotti PDF

Many facets of symbiotic stars have lengthy wondered astronomers. for example whereas so much scholars of the topic have thought of them binary, many have at varied instances supported unmarried celebrity versions. the character in their outbursts is doubtful, whereas the dividing line among symbiotic stars and novae is doubtful.

Additional resources for A River Lost: The Life and Death of the Columbia

Example text

Whether or not you call these molecules pheromones will depend on whether the first male’s molecules have evolved for this function. All biological systems are evolving, so for a given species we may be at any point on the continuum from cue to signal. 4). However, for molecules to be treated as a signal under the “operational definition,” there also needs to be a credible evolutionary pathway by direct or kin selection. For example, fish have evolved sensitive responses to molecules released when other fish are injured by predators.

2009). In these Heliothis species, quantitative trait locus (QTL) studies showed genes on at least 9 of the 31 Heliothis chromosomes contribute to the pheromone differences between the species, which may also involve genes other than those encoding the enzymes themselves. The change leading to the Asian cornborer, O. nubilalis, pheromone has been called a “saltational” shift, and it has been suggested that “sudden major switches in pheromone blend and male response appear more likely than accumulation of small changes” (Roelofs et al.

However, for molecules to be treated as a signal under the “operational definition,” there also needs to be a credible evolutionary pathway by direct or kin selection. For example, fish have evolved sensitive responses to molecules released when other fish are injured by predators. However, these molecules are probably alarm cues rather than an evolved signal as the responding fish are unlikely to be kin and may even be from a different species (Chapter 8) (Ferrari et al. 2010; Wisenden 2013). 4 Pheromone characteristics, transmission medium, and signal duration Whether pheromones evolve from sender precursors or are derived from receiver sensory bias, which molecules become pheromones is also a product of the function of the message, as well as the medium the message will be carried in.

Download PDF sample

A River Lost: The Life and Death of the Columbia by Blaine Harden


by William
4.5

Rated 4.28 of 5 – based on 20 votes