This article (from 2012) is about the delicate balance of grazing and wildflower diversity and abundance in the Swiss Alps. At high elevation, Alpine meadows (so that's where that term comes from!) would be taken over by shrubs and trees if there wasn't grazing disturbance, but wildflowers and their associated pollinators and other meadow wildlife have been promoted from many centuries of low-intensity grazing in the meadows. However, 10 years ago, one outdated dairy in the Alps was replaced by a more modern one, and because of its increased capacity, dairy farmers brought in more cattle than they had had before, and all the added manure and waste, and more hooves on the ground are changing the plant community. Cows eat more when they need to produce more milk, and unlike certain other ecosystems, the plant community there doesn't do better with increased fertilization.
Since the 1980s, Switzerland has lost some Alpine meadows that have been abandoned, and in areas of more intense grazing, several plant and animal species have gone extinct, and many others are threatened. This is especially sad because the Alps are Europe's most flower-rich area.
http://m.swissinfo.ch/eng/swiss_news/Biodiversity_pressures_strain_idyllic_Alp_.html?cid=33521698
Since the 1980s, Switzerland has lost some Alpine meadows that have been abandoned, and in areas of more intense grazing, several plant and animal species have gone extinct, and many others are threatened. This is especially sad because the Alps are Europe's most flower-rich area.
http://m.swissinfo.ch/eng/swiss_news/Biodiversity_pressures_strain_idyllic_Alp_.html?cid=33521698
http://m.swissinfo.ch/media/cms/images/swissinfo/2012/09/p1050873-33452080.jpg