Although evidence for coevolution and geographic variation in its apparent strength is
increasing, we still have a relatively poor understanding of why coevolution varies among …

Despite substantial interest in coevolution's role in diversification, examples of coevolution
contributing to speciation have been elusive. Here, we build upon past studies that have …

Trade-offs between self-maintenance processes can affect life-history evolution. Integument
replacement and the stress response both promote self-maintenance and affect survival in …

Of the various forms of nonrandom dispersal, matching habitat choice, whereby individuals
preferentially reside in habitats where they are best adapted, has relatively little empirical …

It is well documented that irruptive and nomadic migrants move in response to resources
that are distributed unpredictably in space, time or both. Increasing evidence, however …

A spring emergence of avian haemosporidian infections is nearly universal among
temperate zone birds and is often described as a cost of reproductive effort. We take …

Unpredictable movement patterns of irruptive migrants make them difficult to study through
structured survey methods. We used citizen science data to assess the distribution and …

While many conifers produce annually variable seed crops, serotinous species (which hold
seeds in cones for multiple years) represent unusually stable food resources for seed …

Increasingly, the species that we discover will be uncommon, area restricted, and vulnerable
to extinction. I describe the natural history of a newly discovered seed-eating finch from the …

Cultural evolution may accelerate population divergence and speciation, though most
support for this hypothesis is restricted to scenarios of allopatric speciation driven by random …