▪ Abstract In the search to identify factors that make some plant species troublesome
invaders, many studies have compared various measures of native and alien invasive plant …

The negative co‐variation of life‐history traits such as fecundity and lifespan across species
suggests the existence of ubiquitous trade‐offs. Mechanistically, trade‐offs result from the …

Trade-offs and constraints are inherent to life, and studies of these phenomena play a
central role in both organismal and evolutionary biology. Trade-offs can be defined …

Individual differences in temperament may affect how animals react to novel situations,
avoid predation, invest in reproduction and behave in a variety of social contexts. Little …

Understanding how traits are integrated at the organismal level remains a fundamental
problem at the interface of developmental and evolutionary biology. Hormones, regulatory …

Fluctuations in abiotic and biotic conditions exist in almost all habitats (Dunlap, Loros, &
DeCoursey, 2004; Stevenson et al., 2015). Some fluctuations like the alternation between …

Covariation of life history traits across species may be organised on a 'fast-slow'continuum.
A burgeoning literature in psychology and social science argues that trait covariation should …

Why do highly fecund organisms apparently sacrifice offspring size for increased numbers
when offspring survival generally increases with size,,? The theoretical tools for …

Steroid hormones have similar functions across vertebrates, but circulating concentrations
can vary dramatically among species. We examined the hypothesis that variation in titres of …

Traits correlated with male mating success are likely to be subject to sexual selection.
Sexually selected characters are thought to be costly to develop and maintain. If males do …