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Around the world, once-giant ecosystems have been cut up into tiny fragments. Islands of habitat have been left on the land that can be wiped by a single storm.

"large animals were once ubiquitous across the globe. They shaped the structure and dynamics of ecosystems. Their decline, largely caused by humans through hunting and habitat fragmentation, has far-reaching and often surprising consequences, including changes in vegetation, wildfire frequency, infectious diseases, invasive species, water quality and nutrient cycles."

I've got a pdf file of the actual article from 7/15 Science. Let me know and I'll gladly e-mail a copy to anyone interested.

"Bird species in rainforest fragments in Brazil that were isolated by deforestation disappeared then reappeared over a quarter-century, according to research results published today in the journal PLoS (Public Library of Science) ONE. Scientists thought many of the birds had gone extinct."

Plant and animal extinctions are detrimental to your health. That's the conclusion of a paper published in this week's issue of the journal Nature by scientists who studied the link between biodiversity and infectious diseases. Species loss in ecosystems such as forests and fields results in increases in pathogens, or disease-causing organisms, the researchers found.