Plasticity-led evolution is central to evolutionary theory. Although challenging to study in
nature, this process may be particularly apparent in novel environments such as cities. We …

The origin, distribution, and function of biological diversity are fundamental themes of
ecology and evolutionary biology. Research on birds has played a major role in the history …

Acoustic communication is crucial to humans and many other tetrapods, including birds,
frogs, crocodilians, and mammals. However, large-scale patterns in its evolution are largely …

Behavior is one of the major architects of evolution: by behaviorally modifying how they
interact with their environments, organisms can influence natural selection, amplifying it in …

Species‐level taxonomy derives from empirical sources (data and techniques) that assess
the existence of spatiotemporal evolutionary lineages via various species “concepts.” These …

INTRODUCTION Organisms in the early stages of speciation provide an opportunity to
understand the processes that govern reproductive isolation between taxa. Ecological or …

Behavioral variation abounds in nature. This variation is important for adaptation and
speciation, but its molecular basis remains elusive. Here, we use a hybrid zone between two …

Partial prezygotic isolation is often viewed as more important than partial postzygotic
isolation (low fitness of hybrids) early in the process of speciation. I simulate secondary …

Much of what we know about speciation comes from detailed studies of well‐known model
systems. Although there have been several important syntheses on speciation, few (if any) …

Insular organisms often evolve predictable phenotypes, like flightlessness, extreme body
sizes, or increased melanin deposition. The evolutionary forces and molecular targets …