baseline blood pb concentrations in black-necked stilts on the upper texas coast.there are no known biological requirements for lead (pb), and elevated pb levels in birds can cause a variety of sub-lethal effects and mortality. historic and current levels of pb in mottled ducks (anas fulvigula) suggest that environmental sources of pb remain available on the upper texas coast. because of potential risks of pb exposure among coexisting marsh birds, black-necked stilt (himantopus mexicanus) blood pb concentrations were measured during the breeding season. almost 80 % (n = 120) ...201526253841
venous blood gas, electrolyte, and hematologic analytes of the mottled duck, anas fulvigula.we collected venous blood samples from 83 apparently healthy mottled ducks ( anas fulvigula ) july 2012-august 2013 on the texas, us, gulf coast and measured blood gas, electrolyte, biochemical, and hematologic parameters. age, sex, body condition score, capture year, capture type, and time of day had significant statistical, but not clinically relevant, effects on several analytes. ducks caught by rocket net had findings consistent with greater stress compared with hand-caught ducks. these anal ...201727749193
avian influenza surveillance in hunter-harvested waterfowl from the gulf coast of texas (november 2005-january 2006).the objectives of our study were to determine prevalence of avian influenza viruses (aiv) on wintering grounds on the texas gulf coast, usa, and to compare real-time reverse-transcriptase polymerase chain reaction (rrt-pcr) and virus isolation for detection of aiv in cloacal swabs from wild waterfowl. cloacal swabs were collected from hunter-harvested waterfowl from november 2005 to january 2006 at four wildlife management areas. seven aiv were isolated from four species of ducks: green-winged t ...200818436675
avian influenza viruses and paramyxoviruses in wintering and resident ducks in texas.cloacal swabs were collected from teal (anas crecca, anas cyanoptera, anas discors), mottled duck (anas fulvigula) and northern pintail (anas acuta) in brazoria county, texas, usa, during february 2001, mottled ducks during august 2001, and blue-winged teal (a. discors) during february 2002. prevalence of avian influenza virus (aiv) infections during each sampling period were 11, 0, and 15%, respectively. the hemagglutinin (h) subtypes h2 and h7 were detected in both years, while the h8 subtype ...200516244076
tetrameres (petrowimeres) striata in ducks.tetrameres (petrowimeres) striata is an uncommon and incompletely described nematode from north american and eurasian waterfowl. specimens collected from mallards (anas platyrhynchos) from the playa lakes region (plr) in western texas (usa), the mottled duck (a. platyrhynchos fulvigula) in florida (usa), the mallard in the amur river basin of eastern russia and the blue-winged teal (anas discors) from western texas (usa) provide the basis for redescription of t. (p.) striata. this species is dif ...19947933277
role of nonmigratory mottled ducks (anas fulvigula) as sentinels for avian influenza surveillance.the objective of this study was to evaluate the mottled duck (anas fulvigula), a nonmigratory dabbling duck, as a sentinel species for avian influenza virus (aiv) surveillance. a total of 235 cloacal swabs from 147 live-captured and 88 hunter-harvested mottled ducks during summer (june-august 2007) and winter (november 2007 to january 2008), respectively, were collected along the upper texas coast. samples were screened for aiv using real-time reverse transcription polymerase chain reaction (rrt ...201222448526
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