Abstract Growth of structural mass and energy reserves influences individual survival, reproductive success, population species life history. Metrics growth storage individuals are often used to assess health potential, which can inform conservation. However, the energetic costs tissue deposition for stores their prioritization within bioenergetic budgets poorly documented. This is particularly...

—Mycorrhizal fungi are ubiquitous components of terrestrial ecosystems that can influence plant performance, abundance and diversity. Patterns of allocation to specific mycorrhizal fungal structures could provide a useful context for understanding belowground dynamics in response to changing resources. Specifically, increased soil nutrient availability has been predicted to favor plants with lo...

Using micro-data from 48 developing countries, this article studies changes in cross-sectional patterns of fertility and child investment over the demographic transition. Before 1960, children from larger families obtained more education, in large part because they had richer and more educated parents. By century’s end, these patterns had reversed. Consequently, fertility differentials by incom...

Although alternative mating tactics are found in males of many species, little is known about tactic-specific adaptations to sperm competition and the mechanism by which fertilization success is obtained. We now report on the sperm investment patterns of males that use alternative mating tactics in bluegill sunfish (Lepomis macrochirus). Bluegill males are characterized by three alternative mat...