Casey terHorst

About Casey terHorst

Casey is a community ecologist interested in how species interactions are affected by genetic variation within species and evolution that occurs on ecological time scales. He is currently a post-doc in Jen Lau's lab at the Kellogg Biological Station. In the Fall, he will be starting as an Assistant Professor at California State University, Northridge.

All I Really Need to Know, I Learned from Aphids

In our lab, we throw around the terms “eco-evolutionary dynamics” or “eco-evolutionary feedbacks” pretty loosely to describe any interactions between ecological and evolutionary processes (two more terms that are defined pretty abstractly). But we can do a better job of defining eco-evolutionary feedbacks, and a recent paper by Martin Turcotte, Dave Reznick, and Daniel Hare reminded me of that. This is another paper from the Eco-Evo special feature in The … Continue reading

Evolution isn’t so simple

To steal a line from the paper that I’m about to talk about: “Herbivores have fed on plants for more than 400 million years”. I thought this was a pretty striking way to start a paper; it suggests that these interactions might play a really important role in how plants and herbivores evolve. And indeed countless papers have discussed the effects of herbivores in driving the evolution of plant defenses … Continue reading

Can Invaders Become Darwinian Demons?

There are two things I think are really cool and drive most of what I think about (well, I’ll pretend there are only two). The first is trade-offs. They’re pervasive in ecological and evolutionary thinking. The basic idea is that everybody is good at doing something, but also bad at doing something else. This comes into play in ecology because each species has its own little niche in the world, … Continue reading

Sex is for the Greater Good

Allegedly, men think about sex once every seven seconds. While this may seem like an exaggeration, regardless of gender, it’s likely an underestimate if you’re a life history biologist. I grew up as a graduate student in a life history lab, and trust me, there’s no end to the number of sex jokes that can be made when you’re talking about reproductive strategies that involve sneaker males or massive orgies … Continue reading