Technology on the Move: Recent and Forthcoming Innovations for Tracking Migratory Birds

Bridge, Eli S.; Thorup, Kasper; Bowlin, Melissa S.; Chilson, Phillip B.; Diehl, Robert H.; Fléron, René; Hartl, Phillip; Kays, Roland; Kelly, Jeffrey F.; Robinson, W. Douglas; Wikelski, M.

doi:10.1525/bio.2011.61.9.7

Cited by 422 publications

(399 citation statements)

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“…Without this knowledge, we cannot truly understand the evolution of migratory behavior (Bowlin et al 2010). Small (,100 g) migrants represent the largest gap in our understanding as they cannot carry GPS transmitters, which can provide researchers with detailed information about in-flight behavior such as altitude (Bridge et al 2011). Information about flight altitude and associated atmospheric conditions can be used to inform many different aspects of avian migration biology; recently, for example, authors have used altitudinal information collected from GPS transmitters to predict when migrants will use 'emergency' staging sites (Shamoun-Baranes et al 2010) and to better understand the physiological capabilities of migratory birds (Bishop et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Unexplained altitude changes in a migrating thrush: Long-flight altitude data from radio-telemetry

Bowlin

Enstrom²,

Murphy

et al. 2015

The Auk

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Section: Introductionmentioning

confidence: 99%

Unexplained altitude changes in a migrating thrush: Long-flight altitude data from radio-telemetry

Bowlin

Enstrom²,

Murphy

et al. 2015

The Auk

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“…Transmitters representing 3 % of the bird's body mass (the acceptable range is 3-5 %, Fair et al 2010;Bridge et al 2011) resulted in a roughly 5 % increase in energy expenditure for flight (Vandenabeele et al 2011). Therefore, in Night Herons, which migrate by flapping flightenergetically one of the most expensive modes of locomotion in birds-the additional weight can affect migratory behavior by, for example, reducing migratory speed and/or prolonging stopovers.…”

Section: Discussionmentioning

confidence: 99%

Post-breeding migration of Night Herons Nycticorax nycticorax tracked by GPS/GSM transmitters

Ledwoń

Betleja²

2015

J Ornithol

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The migratory strategy of herons is poorly understood: only that of Purple Heron has been well studied. The migratory movements of three Night Herons from the Upper Vistula Valley (Poland) were studied using a GPS/GSM-tracking system in 2012. The results document a previously unknown autumn migration strategy of Night Herons with long stopovers en route, unlike that of Purple Herons. The different migration strategies of Purple Herons and Night Herons could be due to differences in wing-loadings and foraging ecology.

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“…Given the difficulty of tracking small birds over large distances, very little information is available on migratory strategies of individual passerine birds; however, the recent and rapidly growing technological revolution in the field of animal tracking , Robinson et al 2010, Bridge et al 2011) presents an unprecedented opportunity to understand bird migration at an individual level and at a larger scale than was previously possible. In particular, light-level geolocators (hereafter "geolocators"), which provide daily estimates of a bird's geographic position by recording day length (Stutchbury et al 2009, Robinson et al 2010, have revolutionized our understanding of the movements of long-distance migrants (e.g., Heckscher et al 2011, Seavy et al 2012.…”

Section: Methodsmentioning

confidence: 99%

Long-distance bird migration within South America revealed by light-level geolocators

Jahn

Levey

Cueto

et al. 2013

The Auk

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Abstract.-Little is known about the timing of migration, migration routes, and migratory connectivity of most of the >230 species of birds that breed at south temperate latitudes of South America and then migrate toward the tropics to overwinter. We used light-level geolocators to track the migration of 3 male and 3 female Fork-tailed Flycatchers (Tyrannus savana) captured on their breeding territories in Argentina. All birds initiated fall migration between late January and late February, and migrated 45 to 66 km day -1 in a northwesterly direction through central South America to either one or two wintering areas. Five individuals first spent several weeks (in April and May) in western Amazonia (mainly Peru, northwestern Brazil, and southern Colombia) before moving east to spend the rest of the non-breeding season in central Venezuela and northern Brazil. One individual occupied primarily one wintering area in eastern Colombia, northwestern Brazil, and southwestern Venezuela. Fall migration took approximately 7-12 weeks to complete and covered a distance of 2,888-4,105 km. We did not analyze spring migration data because of broad overlap with the austral spring equinox. These results are the first data on wintering locations, migration timing, and routes of individual migrant passerine birds that breed in South America. Given the general lack of similar data for practically all migratory birds that breed in South America, geolocator technology has the potential to revolutionize our understanding of how birds migrate-and the threats they face-on South America's rapidly changing landscape. La migración a Larga Distancia de Aves en América del Sur Revelado por GeolocalizadoresResumen.-Poco se sabe sobre la fenología de la migración, las rutas de migración, y la conectividad migratoria de la mayoría de los >230 especies de aves que se reproducen en latitudes templadas del sur de Sur América, y que luego migran hacia los trópicos para invernar. Utilizamos geolocalizadores para estudiar la migración de tres machos y tres hembras de Tyrannus savana capturados en sus territorios de cría en Argentina. Todas las aves iniciaron la migración de otoño entre finales de enero y finales de febrero, y migraron de 45 a 66 km dia -1 hacia el noroeste por el centro de América del Sur, hasta una o dos áreas de invernada. Cinco individuos primero pasaron varias semanas (en abril y mayo) en la Amazonia occidental (principalmente Perú, noroeste de Brasil, y sur de Colombia), antes de moverse hacia el este para pasar el resto de la temporada no reproductiva en el centro de Venezuela y el norte de Brasil. Un individuo estuvo principalmente en un área de invernada en el este de Colombia, noroeste de Brasil, y el suroeste de Venezuela. La migración de otoño duró aproximadamente 7-12 semanas, y cubrió una distancia de 2888-4105 km. No analizamos los datos de la migración de primavera a causa de una amplia superposición con el equinoccio de la primavera austral. Estos resultados representan los primeros datos sobre los lugares de invernad...

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Technology on the Move: Recent and Forthcoming Innovations for Tracking Migratory Birds

Cited by 422 publications

References 50 publications

Unexplained altitude changes in a migrating thrush: Long-flight altitude data from radio-telemetry

Unexplained altitude changes in a migrating thrush: Long-flight altitude data from radio-telemetry

Post-breeding migration of Night Herons Nycticorax nycticorax tracked by GPS/GSM transmitters

Long-distance bird migration within South America revealed by light-level geolocators

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