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

Do invasive species shift their niche to invade?

Invasive species are able to take over and vastly change the ecosystems where they invade. On par with climate change and habitat destruction, they are one of the top threats to biodiversity. A recent example in the news, Asian carp, threatens to invade the Great Lakes and decimate fish populations – this species alone could cause a $7 billion fishing industry to collapse, so we can see why it is … Continue reading

Novelty Can’t Last Forever

Novelty Can’t Last Forever–Rapid Evolution in the Face of Invasion The introduction of a novel organism into a community has many consequences, including generating novel evolutionary relationships between species. Considering the ubiquity of invasive species in ecosystems around the world, examining the evolutionary relationships between native and invasive species and how they can affect ecological patterns is of great interest. Richard Lankau recently published a paper in PNAS titled “Coevolution between … Continue reading