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PostPosted: Tue Sep 08, 2015 10:31 am 
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Fujian H5 Confirmed In July Healthy Mallard In Davis Co Utah

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PostPosted: Tue Sep 08, 2015 10:32 am 
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85 07-31-2015 e Mallard Davis UT EA H5 d 08-21-2015 Utah DWR L

a
Avian H5 influenza (H5N8) originating from Eurasia (EA) spread rapidly along wild bird migratory pathways during 2014. Introduction of this virus into the
Pacific Flyway sometime during 2014 has allowed mixing with North American (AM) origin viruses and generated new (novel) combinations with genes from
both EA and AM origin (or “reassortant” viruses). These findings are not unexpected as the EA-H5 viruses continue to circulate in the flyways. This group of
EA-H5 viruses is highly pathogenic in poultry. The ‘novel EA/AM H5N1’ is different from the ‘Asian HPAI H5N1’ and is a mixture of Eurasian and low
pathogenic North American origin viruses.
b
EA = Eurasian; AM=North American; the EA-H5 (2.3.4.4) are highly pathogenic to poultry
c M = morbidity/mortality; H = hunter harvest ; L = live bird released; A = agency harvested
d
No virus was isolated but specimens were positive by the H5 (icA) molecular assay which targets the Eurasian H5 clade 2.3.4.4 viruses first detected in the US
in December 2014.
e
Cases posted in most recent update

http://www.aphis.usda.gov/wildlife_dama ... STATES.pdf

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PostPosted: Tue Sep 08, 2015 10:33 am 
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In Utah, as of September 2015, HPAI has only been detected in two healthy ducks, which were tested in association with enhanced surveillance activities in December 2014 and August 2015.

http://wildlife.utah.gov/diseases/avian_influenza.php

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PostPosted: Tue Sep 08, 2015 10:44 am 
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H5N8 map update

https://www.google.com/maps/d/edit?mid= ... 2tn8&hl=en

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PostPosted: Tue Sep 08, 2015 3:40 pm 
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Waterfowl Facts - The Great Salt Lake

The Great Salt Lake is arguably the most important waterfowl hotspot in the Intermountain West. There are 35 species of waterfowl numbering between 3-4 million that annually utilize its diverse wetland ecosystem for migration and breeding. John C. Fremont, an early explorer in the west, wrote in 1843 after visiting the Great Salt Lake near the Bear River Refuge: “the waterfowl made a noise like thunder…as the whole scene was animated with waterfowl.”

Since then, habitats have drastically changed, water supplies have become limited, invasive species are rampant, waterfowl production is down, and we may never witness the once vast and impressive flocks that Fremont did. Yet, a healthy wetland ecosystem in the Great Salt Lake area remains absolutely critical for large segments of the continental population of many waterfowl species. The Great Salt Lake is of particular importance for Northern Pintails, Cinnamon Teal, Gadwall, Green-winged Teal, Tundra Swans, Redheads, Ruddy Ducks, Common Goldeneyes, Mallards, and Canada Geese (the Rocky Mountain Population).

http://www.ducks.org/utah/utah-projects ... -salt-lake

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PostPosted: Tue Sep 08, 2015 3:41 pm 
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Mallard -
Image
Mallards are very common nesters (50,000) and a numerous migrant (375,000) in the Great Salt Lake's marshes. Habitat enhancements promoting sego pondweed and hardstem bulrush through the control of carp and common reed are needed to expand potential production habitats as well as improve migration and wintering areas. The spread of common reed has created large monotypic stands of dense vegetation that has replaced hemi-marsh conditions desirable by nesting and brood rearing mallards. Most of the mallards migrate through the Great Salt Lake to the Central Valley of California and to the Salton Sea, with only a modest amount remaining in the Great Salt Lake area through the winter. Click the following link for more about pintails, DU's Mallard Initiative, and our conservation efforts across North America.

http://www.ducks.org/utah/utah-projects ... -salt-lake

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