Many of the most damaging invasions do not simply subtract species; they fundamentally remodel the environment, altering habitats, rewiring interactions, and shifting processes in ways that species ...

Scientists have made lots of projections over the past few years about how warming temperatures and a changing climate will affect the planet. Real-world measurements have confirmed at least some of ...

This area entails study and maintenance of biological diversity at the level of genes, populations, communities, ecosystems and biomes; intellectual underpinnings include evolutionary theory, ...

Erol Akçay, a biology professor at Penn, recently conducted a research about mutualism in ecosystems. New research from a Penn professor and a Penn alum shows that mutually beneficial relationships ...

A mysterious marine epidemic has erased billions of sea stars from North America’s Pacific coast. After more than a decade of unanswered questions, scientists have traced the disaster to a single ...

The following courses are approved for Ecosystem Analysis Tools. AAE 57500 - Introduction to Satellite Navigation and Positioning Introduction to radio-navigation techniques, using the Global ...