Sentences with phrase «predator populations decline»

In nature, if predators deplete their prey supply, the depleted prey leads to predator starvation, so predator populations decline, allowing prey populations a chance to recover.

Not exact matches

However, if, as we showed, the scent is sufficient to continue population decline, then even if the predators move on to other prey, and their scent disappears, this is unimportant for the survival of the population that is at risk whose numbers and reproductive ability have been critically affected by the passing smell of death.»

Although considered one of the most successful predators on Earth due to the high kill - rate their cooperative hunting achieves, African wild dog populations are declining due to pressures including habitat loss and human - wildlife conflict.

More specifically, the spread of exotic predators is considered to be one of the major causes of population decline and species extinction on a global scale.

The findings may also explain why harbor seal populations are declining in fjords whose glaciers have retreated onto land: Without the acoustic camouflage provided by the bubble - induced din, the seals may have a harder time evading their main predator, the killer whale.

We found that PCBs were at excessively high concentrations in the blubber of several marine apex predator species across Europe, including killer whales and bottlenose dolphins, and were associated with long - term and on - going population declines.

``... conserve and restore federally - listed species and protect all native fauna and flora on the [refuges] from population decline and potential extirpation or extinction due to predation by non-native species and human - subsidized populations of native predators.»

Fact: While cats are predators by nature, responsibility for the decline in bird and wildlife population falls squarely on the shoulders of the human species.

Thanks to wildlife protections for mountain lions and flourishing populations of «urban» coyotes and other meso - predators, LA and neighboring counties have record declines in homeless pets.

With the rise of large, industrialised cities in Germany, the predator population began to decline, rendering sheepdogs unnecessary.

Recreational and other human disturbance, loss of habitat to urban development, introduction of beachgrass and other nonnative species, and expanding predator populations have all contributed to a decline in active nesting areas and in the size of the breeding and wintering populations.

One prey item is adapted to high predation pressure and supports the predator population (i.e. pigs), whereas the other prey item (i.e. the island fox) is poorly adapted to predation and declines as a consequence of the predation pressure.