The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Understanding how populations fluctuate and interact over fragmented landscapes is central to modern ecology and conservation biology. Metapopulation systems, comprising spatially isolated ...

Researchers have uncovered a critical link between rising temperatures and declines in a species' population, shedding new light on how global warming threatens natural ecosystems. The study revealed ...

Microbes often display cooperative behavior in which individual cells put in work and sacrifice resources to collectively ...

While the daily ebb and flow of people across a city might seem chaotic, new research reveals underlying universal patterns. A study unveils fundamental spatiotemporal scaling laws that govern these ...

Researchers from the International Institute for Applied Systems Analysis (IIASA) have introduced an innovative methodology for reconstructing data on fertility and education, particularly in ...

A committee-supported project or activity that has been completed and for which output dissemination has begun. Its committee has been disbanded and closeout procedures are underway. Although often ...