Sentences with phrase «introduced black rats»

In addition, they have also suffered from human disturbances and in the past, introduced black rats on Anacapa Island.

At Anacapa, introduced black rats preyed heavily on seabird eggs and chicks severely depleting populations of Scripps's murrelets.

But after a ship accidentally introduced black rats to the island about a century ago, the stick insects disappeared, only to be found 40 years later on a nearby volcanic sea stack.

On Anacapa Island, the National Park Service eradicated the introduced black rat population that had decimated the population of nesting Scripps's murrelets.

Not exact matches

Black rats, introduced to the island in the 1920s, wiped out the walking sticks.

Testing sessions entailed introducing a rat to the same black and white image in each stall.

«Early Indian Ocean trade routes bring chicken, black rat to eastern Africa: New technologies provide evidence in the debate on when and how Asian fauna was introduced to Africa.»

Once an island with no natural predators for nesting birds, invasive non-native black rats were inadvertently introduced to the island from ships visiting the islands in the 1940's.

The birds are the innocents, not built for survival on an island where black rats were introduced as predators.

During the 18th and 19th centuries, European explorers unintentionally carried black rats (Rattus rattus) and brown rats (Rattus norvegicus) on their ships as they visited new lands, eventually introducing the two species to every continent but Antarctica.