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When reading the Wikipedia entry on pistachio, I noticed that IUCN has classified the plant under "Near Threatened". On looking up its entry at IUCN, I see that its population is trending downwards, and it is "threatened by fruit collection, livestock grazing and cutting". The treat seems to have nothing to do with the often reported fungus. Looking up the yearly yields at Administrative Committee for Pistachios, I see that 2010 and 2012 were bumper years, but otherwise, I see no real trend of a decrease. Quite the contrary, I get the impression that the yearly yield is increasing. It's not as if the tree is difficult to grow, and we rely on trees growing in the wild; these trees are grown in orchards.

So, what's going on? Why would IUCN say that pistachio is Near Threatened?

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You cited the reason already yourself: "Threatened by fruit collection, livestock grazing and cutting". Obviously conservationists see this as a big enough threat to raise some alarm. –  Chris Apr 12 at 21:59
    
@Chris: What I wrote after that invalidates that reason: unflagging and even bumper yields. –  prash Apr 12 at 22:05
    
@prash It is near threatened and not endangered. I guess the IUCN sees this plant as going to face problems in the future due to a variety of reasons to which I would like to add habitat loss and temperature changes from changing weather patterns too. –  The Last Word May 28 at 11:08
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