In the Grass, On the Reef: Testing the Ecology of Fear
Premieres on WFSU-TV Wednesday, June 29 at 7:30 PM, 6:30 CT. In high definition where available.
Rob Diaz de VillegasWFSU-TV
This clip is a short segment on one of the predators featured in this program: the horse conch. It’s practically an ecosystem onto itself, as you can see in the video’s poster frame above. Barnacles, crepidula, bryozoans, and other marine creatures that affix themselves to hard surfaces settle on its shell. In the video you’ll see its bright orange body as it roams the seagrass beds of the Forgotten Coast. And you’ll see it eat another large predatory snail, the lightning whelk.
It kind of looks like one of those vintage ’80′s jackets adorned with mirrors and sequins- mollusk style. This horse conch’s got a little bit of everything on it, the result of an interesting reversal of roles in this seagrass bed on Bay Mouth Bar.
If you’re a regular reader of the blog, you’ll realize that we often talk about similar research questions or ideas in the context of different projects. As David mentioned in his description of the Baymouth Bar project, this overlap is usually intentional: as ecologists, we’re interested not only in the specific habitats that we study, but also in the underlying factors that affect these habitats and the valuable services that they provide to we humans.
It may appear at times that we’ve been covering a diverse array of topics, and while this is true, all of these topics are interconnected- a web of topics centered around a couple of central themes. The diagram below is the map that shows where every post-topic fits into these central themes. Even the artists, writers, and photographers we occasionally feature have their place amongst ecological processes like sedimentation and the non-consumptive effects of predators. Every post from here on out will have one of these icons on it- if you don’t know what the icon means, just click on it and you’ll be back at this figure with an explanation:
Dozens of different mollusk species interact within a relatively small area at Bay Mouth Bar, from all manner of bivalves to the predatory snails that eat them (and each other).
As soon as you arrive to BMB, it is easy to imagine and feel the same curiosity and fascination that Robert Paine brimmed with when he first immersed himself in the sand bar fifty years ago.
If someday you have the opportunity to visit BMB at low tide, then you would receive much pleasure in looking at 40000 m2 of sand, full of awesome critters! Twenty minutes by kayak, that’s it!
Since I started working at FSU’s marine lab, I have frequently cast longing looks at a local study system that hasn’t been examined in over 50 years. Back in the 1960s, the world’s most famous ecologist (Bob Paine) was a post-doctoral researcher working at FSU’s Marine Lab. It was at this time and place where he began developing some of the concepts that would transform the field of ecology. Continue reading →