Threats to waders
Habitat loss:
· Wetlands being
drained.
· Intertidal zones
being destroyed.
· Grasslands being
turned over to agriculture.
· Natural bays
being turned into Marinas.
Loss of food supply:
· Caused by habitat
loss.
· Over harvesting
of shellfish.
· Collection for
fishing bait.
· Destruction of
fisheries.
Hunting:
· Subsistence
hunting in some regions.
· Illegal sport
hunting.
Pollution:
· Accidental spills
of oil at sea.
· Accidental
spillages of chemicals in rivers.
· Illegal dumping
of chemicals in seas and rivers.
· Illegal ship tank
flushing at sea.
Disturbance:
· By recreation; quad bikes, jet skis, boats, sunbathing, horse-riding.
· Uncontrolled
domestic animals such as dogs.
· Aircraft.
· High tide roosts.
Predators:
· Natural avian
predators such as Peregrine Falcon.
· Natural animal
predators such as foxes.
· Feral animal
predators such as cats, dogs and rats.
Add
to all this the threat of climate change and sea level rises the potential for
mass extinctions among the waders of the world is immense.
The nine major flyways used by migratory birds across the globe.
A flyway is the entire range of a migratory bird species (or group of related species or distinct populations of a single species) through which it moves on an annual basis from the breeding grounds to non-breeding areas, including intermediate resting and feeding places as well as the areas within which the birds migrate."
Gerard C. Boere & David A. Stroud. 2006.
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