Hormones are highly responsive internal signals that help organisms adjust their phenotype
to fluctuations in environmental and internal conditions. Our knowledge of the causes and …

Temporal variation in natural selection is predicted to strongly impact the evolution and
demography of natural populations, with consequences for the rate of adaptation, evolution …

A huge amount of research attention has focused on the evolution of life histories, but most
research focuses on dominant individuals that acquire a disproportionate level of …

Reduced food availability is implicated in declines in avian aerial insectivores, but the effect
of nutritional stress on mammalian aerial insectivores is unclear. Unlike birds, insectivorous …

There are numerous examples of phenological shifts that are recognized both as indicators
of climate change and drivers of ecosystem change. A pressing challenge is to understand …

In seasonally variable environments, phenotypic plasticity in phenology may be critical for
adaptation to fluctuating environmental conditions. Using an 18‐generation longitudinal …

Despite a large body of literature investigating the effects of long-term climate trends on
birds, the effects of short-term weather on individual body condition are less established …

Although phenological shifts in response to climate are often assumed to benefit species'
performance and viability, phenology's role in allowing population persistence and …

Senescence is ubiquitous yet highly variable among species, populations, and individuals,
for reasons that are poorly understood. It is not clear how environmental conditions affect …

Assessing whether phenological shifts in response to climate change confer a fitness
advantage requires investigating the relationships among phenology, fitness, and …