Variation in spring migration routes and breeding distribution of northern pintails Anas acuta that winter in Japan

Hupp, Jerry W.; Yamaguchi, Nori; Flint, Paul L.; Pearce, John M.; Tokita, Ken-ichi; Shimada, Takehiko; Ramey, Andrew M.; Kharitonov, Sergei; Higuchi, Hiroyoshi

doi:10.1111/j.1600-048x.2011.05320.x

Cited by 33 publications

(29 citation statements)

References 36 publications

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“…After reaching an initial summer site where they remained at least 27 days, some pintails moved to more northern locations, possibly to molt remiges (Hupp et al 2011). Thus, on average, pintails with PTTs were farther from Japan at the start of autumn migration than they were at the end of spring migration in early June.…”

Section: Detection Dates Of Ptts and Ringed Pintails At Common Locationsmentioning

confidence: 96%

“…We expected that if PTTs adversely affected some aspect of migration energetics, such as the cost of flight or the accumulation and expenditure of reserves, radiomarked birds might increasingly lag behind ring recoveries as migration progressed, resulting in a positive effect of migration distance on the disparity. Hupp et al (2011) observed that migration routes of male pintails marked with PTTs differed slightly from radiomarked females, and suggested that because of skewed sex ratios, migration strategies of unpaired males might differ from paired males and females. Therefore, we considered sex of marked birds as predictor variables if genders of the radiomarked and ringed pintails differed.…”

Section: Detection Dates Of Ptts and Ringed Pintails At Common Locationsmentioning

confidence: 96%

“…Details on the capture and marking of pintails are in Hupp et al (2011). Briefly, we captured pintails at six locations (Online Resource 1, Fig.…”

Section: Ptt Locationsmentioning

confidence: 99%

“…We then computed the distance separating each recovery location or PTT use site from the most northern point of the Japanese island of Hokkaido. We used northern Hokkaido as a common reference point to calculate migration distance for this and subsequent analyses, because capture locations in Japan varied for marked pintails and because a high percentage of pintails passed through Hokkaido during spring and autumn migration (Hupp et al 2011;Yamaguchi et al 2012a). Within each 7-day interval we compared the mean distance that separated northern Hokkaido from ring recoveries versus PTT use sites.…”

Section: Migration Distance Of Ptts Versus Ringed Pintailsmentioning

confidence: 99%

“…Thus, opportunities to contrast migration movements of a radioed cohort with those of a non-radioed control group are rare. We attached dorsally mounted platform transmitter terminals (PTTs) to Northern Pintails (Anas acuta) at wintering areas in Japan to study their migration routes to nesting areas in Russia, and their connectivity with North American pintails (Yamaguchi et al 2010;Hupp et al 2011). This same population had been the subject of long-term ringing efforts (Flint et al 2009).…”

Section: Introductionmentioning

confidence: 99%

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Evidence that dorsally mounted satellite transmitters affect migration chronology of Northern Pintails

Hupp

Kharitonov²,

Yamaguchi

et al. 2015

J Ornithol

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We compared migration movements and chronology between Northern Pintails (Anas acuta) marked with dorsally mounted satellite transmitters and pintails marked only with tarsus rings. During weekly intervals of spring and autumn migration between their wintering area in Japan and nesting areas in Russia, the mean distance that ringed pintails had migrated was up to 1000 km farther than the mean distance radiomarked pintails migrated. Radiomarked pintails were detected at spring migration sites on average 9.9 days (90 % CI 8.0, 11.8) later than ringed pintails that were recovered within 50 km. Although ringed and radiomarked pintails departed from Japan on similar dates, the disparity in detection of radiomarked versus ringed pintails at shared sites increased 7.7 days (90 % CI 5.2, 10.2) for each 1000 km increase in distance from Japan. Thus, pintails marked with satellite transmitters arrived at nesting areas that were 2500 km from Japan on average 19 days later than ringed birds. Radiomarked pintails were detected at autumn migration stopovers on average 13.1 days (90 % CI 9.8, 16.4) later than ringed birds that were recovered within 50 km. We hypothesize that dorsal attachment of 12-20 g satellite transmitters to Northern Pintails increased the energetic cost of flight, which resulted in more rapid depletion of energetic reserves and shortened the distance pintails could fly without refueling. Radiomarked pintails may have used more stopovers or spent longer periods at stopovers. causing their migration schedule to diverge from ringed pintails. We urge further evaluation of the effects of dorsally mounted transmitters on migration chronology of waterfowl.

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Section: Detection Dates Of Ptts and Ringed Pintails At Common Locationsmentioning

confidence: 96%

Section: Detection Dates Of Ptts and Ringed Pintails At Common Locationsmentioning

confidence: 96%

“…Details on the capture and marking of pintails are in Hupp et al (2011). Briefly, we captured pintails at six locations (Online Resource 1, Fig.…”

Section: Ptt Locationsmentioning

confidence: 99%

Section: Migration Distance Of Ptts Versus Ringed Pintailsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Evidence that dorsally mounted satellite transmitters affect migration chronology of Northern Pintails

Hupp

Kharitonov²,

Yamaguchi

et al. 2015

J Ornithol

Self Cite

View full text Add to dashboard Cite

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Evidence for the exchange of blood parasites between North America and the Neotropics in blue-winged teal (Anas discors)

et al. 2016

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Blue-winged teal (Anas discors) are abundant, small-bodied dabbling ducks that breed throughout the prairies of the northcentral USA and central Canada and that winter in the southern USA and northern Neotropics. Given the migratory tendencies of this species, it is plausible that blue-winged teal may disperse avian pathogens, such as parasites causing avian malaria, between spatially distant areas. To test the hypothesis that blue-winged teal play a role in the exchange of blood parasites between North America and areas further south, we collected information on migratory tendencies of this species and sampled birds at spatially distant areas during breeding and non-breeding periods to diagnose and genetically characterize parasitic infections. Using a combination of band recovery data, satellite telemetry, molecular diagnostics, and genetic analyses, we found evidence for (1) migratory connectivity of blue-winged teal between our sampling locations in the Canadian prairies and along the US Gulf Coast with areas throughout the northern Neotropics, (2) parasite acquisition at both breeding and non-breeding areas, (3) infection of blue-winged teal sampled in Canada and the USA with Plasmodium parasite lineages associated with the Neotropics, and (4) infection of blue-winged teal with parasites that were genetically related to those previously reported in waterfowl in both North America and South America. Collectively, our results suggest that blue-winged teal likely play a role in the dispersal of blood parasites between the Neotropics and North America, and therefore, the targeting of this species in surveillance programs for the early detection of Neotropical-origin avian pathogens in the USA may be informative.

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Genetic diversity and mutation of avian paramyxovirus serotype 1 (Newcastle disease virus) in wild birds and evidence for intercontinental spread

et al. 2013

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Avian paramyxovirus serotype 1 (APMV-1), or Newcastle disease virus, is the causative agent of Newcastle disease, one of the most economically important diseases for poultry production worldwide and a cause of periodic epizootics in wild birds in North America. In this study, we examined the genetic diversity of APMV-1 isolated from migratory birds sampled in Alaska, Japan, and Russia and assessed the evidence for intercontinental virus spread using phylogenetic methods. Additionally, we predicted viral virulence using deduced amino acid residues for the fusion protein cleavage site and estimated mutation rates for the fusion gene of class I and class II migratory bird isolates. All 73 isolates sequenced as part of this study were most closely related to virus genotypes previously reported for wild birds; however, five class II genotype I isolates formed a monophyletic clade exhibiting previously unreported genetic diversity, which met criteria for the designation of a new sub-genotype. Phylogenetic analysis of wild-bird isolates provided evidence for intercontinental virus spread, specifically viral lineages of APMV-1 class II genotype I sub-genotypes Ib and Ic. This result supports migratory bird movement as a possible mechanism for the redistribution of APMV-1. None of the predicted deduced amino acid motifs for the fusion protein cleavage site of APMV-1 strains isolated from migratory birds in Alaska, Japan, and Russia were consistent with those of previously identified virulent viruses. These data therefore provide no support for these strains contributing to the emergence of avian pathogens. The estimated mutation rates for fusion genes of class I and class II wild-bird isolates were faster than those reported previously for non-virulent APMV-1 strains. Collectively, these findings provide new insight into the diversity, spread, and evolution of APMV-1 in wild birds.

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Variation in spring migration routes and breeding distribution of northern pintails Anas acuta that winter in Japan

Cited by 33 publications

References 36 publications

Evidence that dorsally mounted satellite transmitters affect migration chronology of Northern Pintails

Evidence that dorsally mounted satellite transmitters affect migration chronology of Northern Pintails

Evidence for the exchange of blood parasites between North America and the Neotropics in blue-winged teal (Anas discors)

Genetic diversity and mutation of avian paramyxovirus serotype 1 (Newcastle disease virus) in wild birds and evidence for intercontinental spread

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