Sentence examples for global extinctions from inspiring English sources

In 1980 he produced the first projection of global extinctions for the Global 2000 Report to the President.

These are instances of local extinctions, however, and their occurrence does not mean that the species involved will go extinct everywhere, as is the situation for the global extinctions discussed in the case histories above.

Such global extinctions have already happened.

How can these results regarding local habitat "islands" be applied to global extinctions?

The study of coherence of population dynamics is extremely important for predicting and evaluating the risk of global extinctions.

The work appears to support the view that in the global extinctions some 66 million years ago, all non-avian dinosaurs had to die for mammals to flourish.

While low migration rates prevent local populations from becoming extinct, high migration rates enhance the risk of global extinction by synchronizing the dynamics of connected populations.

With the IEM model, global extinction occurs.

Some scientists use the term extirpation for local extinctions, reserving extinction to mean global extinction.

Nuclear weapons present a unique threat of national devastation and global extinction.

The global extinction crisis has thrown the importance of fundamental ecological questions into sharp relief.