As regular readers know, I worry a lot about zombie ideas–ideas that should be dead, but aren’t. Zombie ideas are the most important failures of science’s self-correction mechanisms: they’re big, widespread errors or misconceptions that aren’t recognized as such. Over the years, I and our guest posters have identified several zombie ideas in ecology:
Local-regional richness relationships (specifically, the ideas that linear ones are ubiquitous, and that linear ones show that colonization not local species interactions controls local community membership)
And we’re starting to see folks identify other candidate zombie ideas in other venues. For instance, Luke Harmon thinks the notion of ecological limits on continental scale species richness is a zombie idea. I don’t agree, but I can see the argument. Peter Abrams thinks ratio-dependent predation is a zombie idea, though I’d call it a lost cause. Terry McGlynn just listed a couple from his own fields of entomology and tropical biology (three-toed sloths are Cecropia specialists; canopy ants are dominant because of their high-sugar diet).
Here’s my question to you: Is that it? Are those the only zombie ideas in ecology? Or are there others, shambling around unrecognized, eating the brains of the next generation of students even as we speak?* Tell us in the comments: What are the other zombie ideas in ecology?
Remember, zombie ideas are widespread errors. We’re not looking for personal criticisms of individual scientists here, and no such criticism is implied by discussion of zombie ideas. Having proposed or supported a zombie idea doesn’t make anyone a bad scientist. Science is hard and we all get things wrong sometimes.
p.s. I can’t believe I never thought of this post idea before!
*Textbooks are a refuge for zombie ideas.