Avian Cholera on North Coast California
A bstract : Between 1945 and 2001, avian cholera ( Pasteurella multocida infection ) was confirmed at 27 epizootics in 18 different years on northcoastal California. Estimated mortality ranged from 1 to 6750 birds per site, with a median total mortality of about 1000 birds per year. Eight epizootics...
| Published in: | Annals of the New York Academy of Sciences |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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Wiley
2002
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| Online Access: | http://dx.doi.org/10.1111/j.1749-6632.2002.tb04383.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1749-6632.2002.tb04383.x https://nyaspubs.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1749-6632.2002.tb04383.x |
| Summary: | A bstract : Between 1945 and 2001, avian cholera ( Pasteurella multocida infection ) was confirmed at 27 epizootics in 18 different years on northcoastal California. Estimated mortality ranged from 1 to 6750 birds per site, with a median total mortality of about 1000 birds per year. Eight epizootics involved < 150 birds; thus, minor epizootics were common. Annual total wildfowl mortality ranged from 0.4% to 7.0% of estimated live populations; median annual mortality for American coots ( Fulica americana ) (11.5%) surpassed that of tundra swans ( Cygnus columbianus ) (0.2%) and ducks (0.2%). Coots comprised > 50% of total wildfowl mortality in 16 of 17 epizootics. Overall, coots comprised 82% of known avian cholera mortality, but only 34% of the live wildfowl present; ducks and swans died much less frequently. Wildfowl at one site consistently died in a sequential pattern; there was no sequential mortality at other sites. |
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