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Research Results: If You Restore It, Will Pike Come?

It’s well known that some migratory fish species, like salmon, are able to trace their way back to the stream where they were born. However, conservationists have no idea if this is the case for hundreds of other fish species.

Do pike return to spawn in the streams where they were born, a la salmon?

Not necessarily, at least in the Green Bay watershed. If there’s suitable habitat, pike will find it and spawn. That’s the central finding of research conducted by the University of Wisconsin’s Pete McIntyre and Dan Oele.

This result may sound like a let-down, but in reality it’s a relief for conservationists in the Green Bay area. The Nature Conservancy and other conservation groups are focused on restoring streams for pike and other fish, but the best methods to accomplish that goal remain uncertain. If pike returned to their natal streams to spawn, they may never find a restored stream even if it contained suitable habitat.

That’s not the case, which is good news for conservation efforts.

Full Article

Everyday Nature: How I Came To Love House Centipedes

I’ve been called a lot of strange things in my life, but I never thought I could be called a nematode-lover.

I certainly never envisioned a day when my wife would start referring to house centipedes – those terrifying huge invertebrates that seem to have a million legs and run at top speed – as our “honored guests.”

We’re definitely not “bug people,” so what turned us around?

As an ecologist, I can appreciate that even unlovable critters serve valuable functions in nature like decomposing organic matter and keeping the populations of other organisms in check.

Then again, I never thought the indoors had room for biodiversity or strange “guests.” Living in the aptly named “eco-house” in college (where a dirt floor basement and holes in the walls contributed to hefty populations of slugs, moths, flies, and more) forced me to get used to it, but it certainly wasn’t my ideal living situation.

So you can imagine my unhappiness when I discovered several years ago that I’d moved into a condo chock full of house centipedes.

Then the ecologist in me started wondering why they were there, and what would happen if I successfully got rid of them.

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