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Documents disponibles écrits par cet auteur (12)
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Article
Bruno Bruderer, Auteur ; Dieter Peter, Auteur ; Thomas Steuri, Auteur ; Felix Liechti, Auteur ; Baptiste Schmid, AuteurThe path-breaking work of Eastwood (1967) provided comprehensive information on the use of surveillance radar for the study of bird migration, reference to initial studies applying pencil-beam radar, and a first hint to the use of tracking radar[...]
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Bruno Bruderer, Auteur ; Dieter Peter, AuteurThis review on autumn migratory directions is thought as a complement to an earlier overview on the vertical distribution of bird migration between the Baltic Sea and the Sahara (Bruderer et al. in J Ornithol 159:315–336, 2018): (1) A broad syno[...]
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Bruno Bruderer, Auteur ; Dieter Peter, Auteur ; Fränzi Korner-Nievergelt, AuteurThis review covers 40 years of migration studies of the Swiss Ornithological Institute with the tracking radar “Superfledermaus”. Since 1968, this pencil-beam radar was—according to its (military) capacities of surveillance and tracking—applied [...]
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Heiko Schmaljohann, Auteur ; Felix Liechti, Auteur ; Bruno Bruderer, AuteurPasserine migrants are usually divided into diurnal and nocturnal migrants. When crossing the Sahara it was expected that nocturnal migrants would continue their flight into the day. We investigated whether migration taking place in the Sahara d[...]
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Christian Rivera, Auteur ; Bruno Bruderer, AuteurDans Nos Oiseaux (2 1998)
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Heiko Schmaljohann, Auteur ; Felix Liechti, Auteur ; Bruno Bruderer, AuteurLesser black-backed gulls Larus fuscus migrate regularly along coastlines or the Nile to their wintering grounds in sub-Saharan Africa. They usually avoid the interior of the Sahara, but occur occasionally far inland when moving upstream along r[...]
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Maria Mateos-Rodriguez, Auteur ; Bruno Bruderer, AuteurWind is an important selective agent in bird migration. In this study, we investigated the influence of wind on the air speed of pelagic seabirds in the Strait of Gibraltar by means of radar measurements. The birds were identified visually at th[...]
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Bruno Bruderer, Auteur ; Volker Salewski, AuteurWe use widely supported handbook data on annual fecundity (clutch size 9 annual number of normal broods) to obtain indications related to the relative costs of long-distance migration compared to lower levels of migratoriness. Our examples show [...]
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Bruno Bruderer, AuteurMoult data from 302 museum skins and 11 trapped birds from sub-Saharan Africa show the course of flight feather moult. Most birds seem to start flight-feather moult soon after arrival in their southern African non-breeding ranges. About 75% of t[...]
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Susanne Jenni-Eiermann, Auteur ; Bettina Almasi, Auteur ; Ivan Maggini, Auteur ; Volker Salewski, Auteur ; Bruno Bruderer, Auteur ; Felix Liechti, Auteur ; Lukas Jenni, AuteurTwice a year, songbirds breeding in the Western Palaearctic cross the largest desert of the world, the Sahara, to reach their African winter quarters. Recently, a radar study quantified this migration and demonstrated that almost all passerines [...]
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Heiko Schmaljohann, Auteur ; Felix Liechti, Auteur ; Erich Baechler, Auteur ; Thomas Steuri, Auteur ; Bruno Bruderer, AuteurBesides the scientific interest in the quantification of bird migration, there is an increasing need to quantify bird movements for the assessment of bird collision risk with artificial structures. In many environmental impact studies, the radar[...]
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Bruno Bruderer, Auteur ; Dieter Peter, Auteur ; Andreas Boldt, Auteur ; Felix Liechti, AuteurThis study presents wing-beat frequency data measured mainly by radar, complemented by video and cinematic recordings, for 153 western Palaearctic and two African species. Data on a further 45 Palaearctic species from other sources are provided [...]
