Shorebird use of western Hudson Bay near the Nelson River during migration, with a focus on the Red Knot

McKellar, Ann E.; Ross, R. Kenyon; Morrison, R. I. Guy; Niles, Lawrence J.; Porter, Ronald R.; Burger, Joanna; Newstead, David J.; Dey, Amanda; Smith, Paul A.

doi:10.18194/ws.00020

Cited by 10 publications

(6 citation statements)

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“…Almost half the knots in this project were detected in James Bay or Hudson Bay. As in other tracking projects, our study showed the west coast of the Hudson Bay and James Bay are spring stopover sites for red knots using the both the Mid-Continent and West Atlantic Flyways [10,13,42,43].…”

Section: Stopoverssupporting

confidence: 73%

Spring migration patterns of red knots in the Southeast United States disentangled using automated telemetry

Smith¹,

Sanders

Lefevre

et al. 2023

Preprint

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Background and Methods Shorebirds evolved flexibility in their migration strategies, with demonstrated variation even within the same population. Research in the last decade revealed diverse migration routes for red knots using the Western Atlantic flyway. Red Knots use the Southeast United States (North and South Carolina, Georgia, and Florida) as a stopover during north and southbound migration and during the winter. We examined northbound red knot migration routes and timing from the Southeast United States using an automated telemetry network. Our primary goal was to evaluate the relative use of an Atlantic migratory route through Delaware Bayversus an inland route through the Great Lakes en route to Arctic breeding grounds and to identify areas of apparent stopovers. Secondarily, we explored the association of red knot routes and ground speeds with prevailing atmospheric conditions. Results Most Red Knots migrating north from the Southeast United States skipped or likely skipped Delaware Bay (73%) while 27% of the knots stopped in Delaware Bay for at least 1 day. Most birds that skipped Delaware Bay traveled north, through the eastern Great Lake Basin. A few knots used an Atlantic Coast strategy that did not include Delaware Bay, relying instead on the areas around Chesapeake Bay or New York Bay for stopovers. We did not detect stopovers in the Great Lakes Basin suggesting that knots move quickly through this region. Nearly half of the red knots were detected in either James Bay or Hudson Bay with the first day of detection ranging from 19 May to 7 June. Nearly 80% of migratory trajectories were associated with tailwinds at departure. Conclusions Most knots tracked in our study did not stop in the Great Lakes, thus making the Southeast United States the last terminal stopover for some knots before reaching Arctic habitats. This study demonstrates the diversity of red knot spring migration routes and underscores how critically important the Southeast United States is as a spring stopover site for red knots. Future conservation planning must include the full network of sites that support the varied migratory routes and strategies used by this declining shorebird species.

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Section: Stopoverssupporting

confidence: 73%

Spring migration patterns of red knots in the Southeast United States disentangled using automated telemetry

Smith¹,

Sanders

Lefevre

et al. 2023

Preprint

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“…All resighted individuals were ringed during previous northward migrations along the US Atlantic coast, most of them in the western Gulf of Mexico (Texas and Louisiana). Although the subspecies roselaari can also occur in certain parts of the rufa non‐breeding range (Carmona et al, ), the Gulf of Mexico is primarily used by C. c. rufa red knots to overwinter (McKellar et al, ; Newstead et al, ), and to a lesser extent during their northward migration to the Canadian Arctic (Lamb et al, ; Newstead et al, ). In addition, individuals overwintering at Chiloé have not been reported on the Pacific coast of North America, despite an important resighting effort on the western coasts of the USA and Canada (Bishop, Buchanan, McCaffery, & Johnson, ).…”

Section: Discussionmentioning

confidence: 99%

Migratory connectivity and local site fidelity in red knots on the southern Pacific coast of South America

Navedo

Gutiérrez

2019

Aquatic Conservation

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The red knot Calidris canutus, a flagship migratory waterbird species, continues to decline within the Americas. One major unanswered question is the status and connectivity of birds spending the non‐breeding season on the southern Pacific coast of South America. Answering this question will provide a useful geographic endpoint that could enhance ongoing conservation efforts. Red knots on Chiloé Island (43°S, Chile) were studied during four consecutive non‐breeding seasons (2014–2018) using systematic counts and resightings of ringed individuals in two shallow bays with known aggregations of other shorebird species. Maximum seasonal abundances (±SD) at each bay (68.8 ± 13.4; 85.0 ± 13.2) were similar across years. However, actual abundance on Chiloé is probably higher, as other suitable habitats were not surveyed. A total of 55 resightings corresponding to 14 individuals were recorded. The majority (72%) was for birds present during consecutive seasons; there were no recorded interchanges between bays. All birds, but one in Argentina, were ringed on the Atlantic coast of the USA (mainly the Gulf of Mexico) during their spring (northward) migration. Mark–resight data reveal a strong migratory connectivity between the southern Pacific coast of South America and the Atlantic coast of North America for this small but regular population of a highly imperilled species. Data also suggest that the red knots on Chiloé might be considered a separate conservation unit (most likely subspecies rufa). Thus, there is an urgent need to conduct comprehensive studies on Chiloé Island for the conservation of the intraspecific diversity of this migratory flagship species.

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“…The ability to estimate these parameters has led to advancements in our understanding of the movement behavior of small animals, including the spatial and temporal scale of migratory stopover , Mann et al 2017, Neima 2017, the influence of ecological barriers on movement behaviour , Crysler 2016, Dossman et al 2016, postfledging dispersal movements (Brown andTaylor 2015, Crysler 2015), migratory connectivity (McKellar et al 2015), the proximate mechanisms of orientation and navigation (Kishkinev et al 2016), and effects of availability of roosting habitat on duration of stay (Mann et al 2017). We have also gained understanding of how movements are influenced by intrinsic and extrinsic factors, including age (Brown and Taylor 2015, Crysler et al 2016, Dossman et al 2016, Kennedy et al 2016, sex (Falconer et al 2016), physiological condition (Dossman et al 2016, Eikenaar et al 2017, habitat (Woodworth et al 2014), and weather , Dossman et al 2016, Loring 2016, Neima 2017.…”

Section: Current Usesmentioning

confidence: 99%

The Motus Wildlife Tracking System: a collaborative research network to enhance the understanding of wildlife movement

Taylor¹,

Crewe²,

Mackenzie³

et al. 2017

ACE

Self Cite

252

292

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ABSTRACT. We describe a new collaborative network, the Motus Wildlife Tracking System (Motus; https://motus.org), which is an international network of researchers using coordinated automated radio-telemetry arrays to study movements of small flying organisms including birds, bats, and insects, at local, regional, and hemispheric scales. Radio-telemetry has been a cornerstone of tracking studies for over 50 years, and because of current limitations of geographic positioning systems (GPS) and satellite transmitters, has remained the primary means to track movements of small animals with high temporal and spatial precision. Automated receivers, along with recent miniaturization and digital coding of tags, have further improved the utility of radio-telemetry by allowing many individuals to be tracked continuously and simultaneously across broad landscapes. Motus is novel among automated arrays in that collaborators employ a single radio frequency across receiving stations over a broad geographic scale, allowing individuals to be detected at sites maintained by others. Motus also coordinates, disseminates, and archives detections and associated metadata in a central repository. Combined with the ability to track many individuals simultaneously, Motus has expanded the scope and spatial scale of research questions that can be addressed using radio-telemetry from local to regional and even hemispheric scales. Since its inception in 2012, more than 9000 individuals of over 87 species of birds, bats, and insects have been tracked, resulting in more than 250 million detections. This rich and comprehensive dataset includes detections of individuals during all phases of the annual cycle (breeding, migration, and nonbreeding), and at a variety of spatial scales, resulting in novel insights into the movement behavior of small flying animals. The value of the Motus network will grow as spatial coverage of stations and number of partners and collaborators increases. With continued expansion and support, Motus can provide a framework for global collaboration, and a coordinated approach to solving some of the most complex problems in movement biology and ecology.Le Système de suivi de la faune Motus : un réseau de recherche collaboratif visant à mieux comprendre le déplacement des animaux RÉSUMÉ. Le Système de suivi de la faune Motus (Motus; https://motus.org), un nouveau réseau collaboratif de chercheurs internationaux, repose sur un ensemble coordonné de stations automatisées de radiotélémétrie pour étudier le déplacement de petits organismes volant, comme les oiseaux, les chauves-souris et les insectes, aux échelles locales et régionales, et à celle de l'hémisphère. Pierre angulaire pour les études de suivi depuis plus de 50 ans, la radiotélémétrie est encore le principal moyen de suivre le déplacement de petits animaux avec une grande précision temporelle et spatiale, en raison des limites que présentent les émetteurs basés sur le système de positionnement géographique (GPS) ou satellite. Des stations réceptrices automatisées,...

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Shorebird use of western Hudson Bay near the Nelson River during migration, with a focus on the Red Knot

Cited by 10 publications

References 0 publications

Spring migration patterns of red knots in the Southeast United States disentangled using automated telemetry

Spring migration patterns of red knots in the Southeast United States disentangled using automated telemetry

Migratory connectivity and local site fidelity in red knots on the southern Pacific coast of South America

The Motus Wildlife Tracking System: a collaborative research network to enhance the understanding of wildlife movement

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