Assertion: puffin | /r/Causes | mismatch
Facets:
value: in the abundance of herring
type: OTHER
value: in shortages
type: OTHER
Source sentences:
text: Like the many migratory birds that have had to literally shift their way of life, the puffin is finding it more difficult to find its major food sources as fish populations are displaced as ocean temperatures warm, causing mismatches in prey-and-predator relationships and shortages in the abundance of herring, their primary food staple.