Word: ecosystems
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...reasons for the recent explosion in jellyfish numbers are many. The problems in the Black Sea occurred because Mnemiopsis had been introduced to an ecosystem that had already been severely overfished. In a healthy ecosystem, small fish keep the jellyfish population in check by eating their young. But when the fish population plummets, the tables are turned. By preying on the eggs and larvae of the few surviving fish, the jellyfish prevent them from replenishing their numbers and quickly take their place. "We're shifting from a fish to a jellyfish ocean," says Boero. "We're removing most...
...sure, the Mediterranean's ecosystem is more diverse - and thus more robust - than the Black Sea's. So only time will tell what kind of effect the Mnemiopsis will have. "What these jellyfish are eating are either the young of the next generation or the food of the next generation," says Bella Galil, a scientist at the National Institute of Oceanography in Israel. "We'll know the impact when what they ate does not appear in the nets next year...
...fishing industry, al-Hissi says fishing is still on the rise. "There are no other opportunities because people can no longer work in Israel. We used to have 100 small boats in use for fishing. Now we have 400." The new fishermen are putting added strain on an ecosystem already in peril, with some resorting to unconventional methods, such as dynamite or poison to kill the fish. "This is even more dangerous than the sewage," says al-Hissi...
...free, we forget that it's a public company that's supposed to be making money for its shareholders. Google has two basic ways of monetizing a product: serving ads on it - as with YouTube and Gmail - or using it to bring people into the Google ecosystem, where they can eventually become users of Google products that Google does serve ads on. Like YouTube or Gmail. (See the top 10 Google Earth finds...
...thinks something more drastic has occurred: the Web's first major ecosystem collapse. Think of Wikipedia's community of volunteer editors as a family of bunnies left to roam freely over an abundant green prairie. In early, fat times, their numbers grow geometrically. More bunnies consume more resources, though, and at some point, the prairie becomes depleted, and the population crashes...