Sentence examples for significant population decline from inspiring English sources

Puerto Ibáñez municipal officials reported that there has been a significant population decline in the town and surrounding area, down from 4,000 in 1991 to 2,700 in 2001; a level at which it has since stabilised.

However, when dispersal distance is a limiting factor (whilst removal rate was sufficiently high), tree clumps typically forming in wet phases of both cyclic scenarios compensated for the negative effect of low dispersal distances, while the constant scenario with random tree pattern and larger inter-tree distances resulted in a significant population decline.

If climatic trends continue, polar bears face a significant population decline this century.

Habitat loss due to forest destruction is the primary cause of a significant population decline in recent decades.

A significant population decline affected the archipelago in the twentieth century, with many young inhabitants departing the islands in search of a modern lifestyle and better job opportunities.

The great white shark was declared as Vulnerable by the Australian Government in 1999 due to significant population decline and is currently protected under the Environmental Protection and Biodiversity Conservation (EPBC) Act.

In areas where oiling was heavy, some crab and crustacean species saw significant population declines.

Scientists studying North American wolverines have observed significant population declines in regions experiencing sharp decreases in snowpack.

"Most seabirds are long-lived and slow reproducing, this means even quite small increases in mortality can lead to significant population declines, which they take a long time to recover from".

Long-term monitoring of flagship bird species in a Mediterranean protected area shows significant population declines.

"Many bee species are already showing significant population declines," he said.