Oregon Science Species Transported 
10,000 Birds
OCTOBER 23, 2017
But does the value of a particular trip come from the number of birds seen, viewing a particular species, seeing an endangered species, catching a glimpse of a rarity, adding a lifer, or something else? Birders derive “value” from birding. How much do birders value a birding experience? Q: Why study birders and why use eBird?
Animal Ethics
MARCH 10, 2008
As the planet warms, fragile habitats that countless animal species depend on for survival will be destroyed. We have already witnessed radical changes in the polar icecap, changes that threaten numerous arctic species. Loss of potable water threatens countless animal species including Homo sapiens. F by the year 2100.
Expert insights. Personalized for you.
170 
Let's personalize your content