21: Example 2: Habitat selection (ecology)

You have just returned from a 3 year stint in the jungles western Africa, where you studied
the habitat selected by the native bee eaters (a family of birds that specialize in catching
bees and wasps on the wing, taking them to a perch, bashing their stingers out, and devouring
them. In a pinch, they will eat other flying or hopping insects, such as grasshoppers). Three
habitats were available to the bee eaters:

habitat Jungle Grassland Fields
% of area 75% 10% 15%

bee eater

Here’s where you observed birds:

habitat Jungle Grassland Fields
# of birds 86 3 11

Is there evidence that birds prefer jungle habitat over grassland or fields? See if you can
set this test up and interpret it on your own. Below is an excerpt from the chi-square table:

bee eaterexcerpt from chi-square table

Click below for hints if you need them.