In late 2014, a H5N8 highly pathogenic avian influenza (HPAI) virus, clade 2.3.4.4, spread by migratory waterfowl into North America reassorting with low pathogenicity AI viruses to produce a H5N2 HPAI virus. Since domestic waterfowl are common backyard poultry frequently in contact with wild waterfowl, the infectivity, transmissibility, and pathogenicity of the United States H5 HPAI index viru...

Here, we report the full genome sequence of an H1N2 avian influenza virus (AIV) isolated from wild waterfowl in Dongting Lake. Phylogenetic analysis showed that it was a novel recombinant AIV between domestic ducks and wild waterfowl. Investigation of this virus is helpful for our understanding of the ecology of AIV in this region.

The Prairie Pothole Region (PPR) is the most important waterfowl production area in North America. However, waterfowl populations there are predicted to decline because of climate-related drying of wetlands. Consequently, changes in the geographic focus of PPR waterfowl conservation have been recommended, which could have long-lasting and costly impacts. We used a 40-year dataset of pond counts...

Substrate samples were taken from eight marshes in southern Nebraska during the summers of 1985 and 1986 when the marshes were relatively dry. Each sample was 12 inches square by 2 inches deep. The number of samples per marsh ranged from 66 to 112, with transect lengths ranging from 71 to 201 m. Based on a 97.5 % recovery rate, these marshes contained an average of 47,217 lead and 5849 steel sh...

Waterfowl brood surveys were conducted in the Pah River Flats, Alaska during July of 1995. Duck production was not significantly different between plots burned in a 1992 wildfire and unburned plots for the third year following the burn. Fire did not produce any statistically detectable positive or negative effects on waterfowl production or habi­ tat in the first three years following the fire....

This study was performed  in second half of year 2009.For bird counting , monthly from Septamber until March 2009. Total counted birds in Maroon lake were (971). Maximum number of counted birds was in February  (191) and minimum of counted was in Septamber (95). Total counted birds in Jaizan were (385. Maximum number of the counted bird was in February (84) and minimum of counted (52) was in Ja...

Biochemical and serological studies were conducted on 73 Pasteurella multocida isolants associated with fowl cholera, 13 from waterfowl, 19 from free-flying birds other than waterfowl, 18 from chickens, 5 from turkeys, and 18 from White Pekin ducks. Three serotypes (1, 3, and 7) were associated with waterfowl, four (1, 3, 6, and 8) with free-flying birds, three (1, 3, and 4) with chickens, one ...