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Wildlife Mortality Information – Avian Lead Poisoning |
What this map layer shows:
The number of bird deaths due to lead poisoning, when each outbreak
occurred, and the top five species affected, by county.
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Background Information |
Sample Map
Lead poisoning is considered a chronic disease in wild birds; large-scale
die-offs due to lead poisoning occur rarely. This map layer portrays
the incidence of avian lead poisoning in the United States. It was produced
by the U.S. Geological
Survey's National Wildlife Health Center (NWHC), which was established
to address the health and disease issues of free-ranging wildlife. The
center collects information on wildlife mortality events such as those
caused by avian lead poisoning, assesses the impact of disease on wildlife,
identifies the role of various pathogens in contributing to wildlife
losses, and works to develop effective disease prevention and control
strategies. The avian lead poisoning information was extracted from NWHC's EPIZOO database,
which is a long-term record of more than 25 years of information on epizootics
(epidemics) in wildlife. EPIZOO tracks die-offs throughout the United
States and its territories, primarily in migratory birds and endangered
species.
The Wildlife Mortality Information – Avian Lead Poisoning
database shows county-level information on avian lead poisoning
events in the United States, including the dates of each event,
the five top species involved, and the number of deaths. Also available
in the National Atlas are databases describing mortality events
due to avian botulism, avian
cholera, and organophosphate/carbamate
poisoning, as well as a database with county-level counts of
wildlife mortality events. More detailed information on avian lead
poisoning and other disease epidemics in wildlife is available
from the NWHC Disease
Information page, and from the Field
Manual of Wildlife Diseases.
Related Links:
If you download the raw data for Wildlife Mortality Information – Avian
Lead Poisoning, you may also want to download the Wildlife Mortality Information
– Frequency and the 2001 County Boundaries raw data. The Wildlife
Mortality frequency information and the County Boundaries map layers can
be used together to create a map of wildlife mortality that is similar
to the map in the Map Maker. The Avian Lead Poisoning map layer provides
additional information about specific events.
Download Wildlife Mortality
Information – Frequency Data
Download 2001 County Boundaries
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