Sanderling (Calidris alba)

Macwhirter, R. Bruce; Austin-Smith, Peter J.; Kroodsma, Donald E.

doi:10.2173/tbna.653.p

Cited by 4 publications

(5 citation statements)

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“…All final detections fall within the range of expected departure dates of both species. 7,36,37 However, birds could have either died or moved outside of range of the Motus array prior departure from a site, and actual departures from the Gulf of Mexico may have been later than reported here. Further expansion of the Motus network in the Gulf of Mexico will help to more accurately assess local and migratory movements.…”

Section: Introductionmentioning

confidence: 66%

“…Both are long-distance, arctic breeding shorebird species, that stage and/or overwinter in the Gulf of Mexico . Peak numbers of both species occur along Texas and Louisiana shorelines in late April and May. ,, Spring migrants of both species and are ecologically important for studying contaminant related effects on migration. Red knots are listed as a threatened species, with the rufa subspecies (C.…”

Section: Introductionmentioning

confidence: 99%

“…c. rufa) listed as endangered in Canada . Both species forage by picking and probing for marine invertebrates and bivalves in subsurface sediments, , and incidental sediment ingestion is common in shorebirds . Therefore, oral PAH exposure can occur during foraging when individuals ingest contaminated prey − and/or sediments…”

Section: Introductionmentioning

confidence: 99%

“…7 Peak numbers of both species occur along Texas and Louisiana shorelines in late April and May. 7,36,37 Spring migrants of both species and are ecologically important for studying contaminant related effects on migration. Red knots are listed as a threatened species, with the rufa subspecies (C. c. rufa) listed as endangered in Canada.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Shorebird Migratory Fueling Physiology and Departure Timing in Relation to Polycyclic Aromatic Hydrocarbon Contamination in the Gulf of Mexico

Bianchini

Morrissey

2018

Environ. Sci. Technol.

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Shorebirds depend on staging sites in the Gulf of Mexico that are frequently subject to pollution by oil and its toxic constituents, polycyclic aromatic hydrocarbons (PAHs). It was hypothesized that PAH contamination lowers staging site quality for migratory shorebirds, with consequences for fueling and departure timing. Sediment total PAH concentrations were measured at six staging sites along the Texas and Louisiana Gulf Coast. Sites in Louisiana were expected to have higher total PAH concentrations as they were more heavily impacted by the Deepwater Horizon oil spill. From 2015 to 2017, 165 Sanderling (Calidris alba) and 55 Red knots (C. canutus) were captured at these same sites during their northward migration (late April to mid May). Mass, body morphometrics, and plasma metabolite measurements were taken to determine fuel loads and fueling rates, and a subset of birds (120 Sanderling and 39 Red knots) received a coded radio tag to determine departure dates using the Motus telemetry array. Compared to Texas sites, sediment in Louisiana had higher total PAH concentrations, dominated by heavier 6 ring indeno[1,2,3-cd]pyrene (48%). Plasma metabolite profiles suggested that fueling rates for Sanderling, but not Red knots, tended to be lower in Louisiana, and both species departed later than the study average from Louisiana. However, multiple factors, including migration patterns, food supply, and other contaminants, also likely influenced fueling and departures. PAH contamination in the Gulf of Mexico remains an ongoing issue that may be impacting the staging site quality and migration timing of long-distance migratory birds.

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Section: Introductionmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Assessment of Shorebird Migratory Fueling Physiology and Departure Timing in Relation to Polycyclic Aromatic Hydrocarbon Contamination in the Gulf of Mexico

Bianchini

Morrissey

2018

Environ. Sci. Technol.

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“…We used monitoring data from three species collected during spring migration in Delaware Bay: red knot ( Calidris canutus rufa ), ruddy turnstone ( Arenaria interpres ), and sanderling ( Calidris alba ). All three of these species breed in the Arctic tundra and spend the nonbreeding season at sites along the coasts of North America, the Caribbean, and South America (Baker, Gonzalez, Morrison, & Harrington, 2001; Macwhirter, Jr, & Kroodsma, 2002; Nettleship, 2000). Birds were captured during the spring stopover period between May 5 and June 5 in Delaware, USA from 2005 to 2018 and marked with Incoloy U.S. Geological Survey (USGS) leg bands and Darvic leg flags inscribed with unique field‐readable alphanumeric codes (Clark, Gillings, Baker, Gonzalez, & Porter, 2005).…”

Section: Methodsmentioning

confidence: 99%

Species‐specific demographic and behavioral responses to food availability during migratory stopover

et al. 2021

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Assessing anthropogenic disturbances to develop buffer zones for shorebirds using a stopover site

Koch

Paton²

2013

J Wildl Manag

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Anthropogenic disturbance can degrade the quality of stopover sites for migratory shorebirds. We investigated the potential effects of pedestrian traffic and shellfishing on foraging shorebirds at a key stopover site at Monomoy National Wildlife Refuge (Monomoy Refuge), Massachusetts, USA. We experimentally approached 11 species of shorebirds to quantify flight-initiation distances (FID) and found that species and age affected FID. Smaller Calidris sandpipers generally allowed pedestrians to approach within 25 m before flushing, whereas larger shorebirds (black-bellied plover [Pluvialis squatarola] and American oystercatcher [Haematopus palliatus]) had FID over 50 m. We also found that juveniles of all species had shorter FID than adults. Based on adult FID, we developed species-specific buffer distances for 11 species that ranged from 61 m for least sandpiper (Calidris minutilla) to 186 m for black-bellied plover. We also investigated the potential impacts of commercial and recreational shellfish harvesters, who rake forsoftshell clams (Mya arenaria) on mudflats where shorebirds actively foraged. Microhabitats with recent shellfishing activity had a positive influence on the density of 2 species (ruddy turnstone [Arenaria interpres], and American oystercatcher), whereas the presence of shellfishers did not appear to affect the density of other species of shorebird we monitored. We regularly detected black-bellied plovers and ruddy turnstones actively foraging in microhabitats where shellfishers had recently exposed sediment. Given the levels of shellfishing and pedestrian traffic at Monomoy Refuge, we found no evidence to suggest that current human activity has a strong negative impact on migratory shorebirds using Monomoy Refuge. However, if the amount of pedestrian traffic and shellfishing were to increase substantially, a buffer zone system might have to be implemented during peak migration periods to minimize impacts, with buffers >185 m from key foraging sites to reduce disturbance to the most sensitive species. Ó

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Sanderling (Calidris alba)

Cited by 4 publications

References 0 publications

Assessment of Shorebird Migratory Fueling Physiology and Departure Timing in Relation to Polycyclic Aromatic Hydrocarbon Contamination in the Gulf of Mexico

Assessment of Shorebird Migratory Fueling Physiology and Departure Timing in Relation to Polycyclic Aromatic Hydrocarbon Contamination in the Gulf of Mexico

Species‐specific demographic and behavioral responses to food availability during migratory stopover

Assessing anthropogenic disturbances to develop buffer zones for shorebirds using a stopover site

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