scholarly journals Determining the migration routes and wintering areas of Asian sparrowhawks through satellite telemetry

2021 ◽  
pp. e01837
Author(s):  
Andrew J. Pierce ◽  
Chukiat Nualsri ◽  
Kaset Sutasha ◽  
Philip D. Round
Bird Study ◽  
2016 ◽  
Vol 63 (3) ◽  
pp. 425-429 ◽  
Author(s):  
Hervé Lormee ◽  
Jean-Marie Boutin ◽  
David Pinaud ◽  
Herve Bidault ◽  
Cyril Eraud

The Condor ◽  
2002 ◽  
Vol 104 (4) ◽  
pp. 780-787 ◽  
Author(s):  
Margaret R. Petersen ◽  
Paul L. Flint

Abstract We used satellite telemetry to study the migration routes and wintering areas of two allopatric breeding populations of Pacific Common Eiders (Somateria mollissimav-nigrum) in Alaska: the Yukon-Kuskokwim Delta, and the western Beaufort Sea coast. Only 6% (2 of 36) of females wintered within the wintering area of the other breeding population. Both breeding populations wintered in the closest available ice-free habitat, perhaps to minimize migratory distance. Two Beaufort Sea females wintered in areas used by Yukon-Kuskokwim Delta females, implying potential gene flow among breeding areas. Yet, we conclude that these two populations are largely geographically isolated throughout the annual cycle and the environmental factors influencing survival and reproduction likely differ between these groups of birds. Thus, regardless of the potential gene flow among breeding populations, we suggest that birds from these two breeding areas should be managed as separate populations. Estructura Poblacional Reproductiva de Somateria mollissimav-nigrum en Alaska Resumen. Usamos telemetría satelital para estudiar las rutas de migración y áreas de invernada de dos poblaciones alopáticas reproductivas de Somateria mollissimav-nigrum en Alaska: la del Delta Yukon-Kuskokwim, y la de la costa oeste del Mar de Beaufort. Solo el 6% (2 de 36) de las hembras invernaron dentro del área de invernada de la otra población reproductiva. Las dos poblaciones invernaron en el hábitat libre de hielo más cercano, tal vez para minimizar la distancia de migración. Dos hembras del Mar de Beaufort invernaron en áreas usadas por hembras del Delta de Yukon-Kuskokwim, implicando un potencial flujo génico entre las áreas de reproducción. Sin embargo, concluimos que estas dos poblaciones están aisladas geográficamente a lo largo del ciclo anual y que los factores ambientales que afectan la supervivencia y reproducción son probablemente diferentes entre estos grupos de aves. Por lo tanto, a pesar del flujo génico potencial entre las poblaciones reproductivas, sugerimos que las aves de estas dos áreas de reproducción deben ser manejadas como poblaciones separadas.


Ostrich ◽  
2006 ◽  
Vol 77 (3-4) ◽  
pp. 210-219 ◽  
Author(s):  
Flemming Pagh Jensen ◽  
Knud Falk ◽  
Bo Svenning Petersen

Bird Study ◽  
2013 ◽  
Vol 60 (3) ◽  
pp. 409-413 ◽  
Author(s):  
Ugo Mellone ◽  
Javier De La Puente ◽  
Pascual López-López ◽  
Rubén Limiñana ◽  
Ana Bermejo ◽  
...  

2003 ◽  
Vol 115 (2) ◽  
pp. 166-169 ◽  
Author(s):  
AARON M. HAINES ◽  
MIKE J. MCGRADY ◽  
MARK S. MARTELL ◽  
B. JAMES DAYTON ◽  
M. BLAKE HENKE ◽  
...  

The Condor ◽  
2001 ◽  
Vol 103 (4) ◽  
pp. 715-724 ◽  
Author(s):  
Mark S. Martell ◽  
Charles J. Henny ◽  
Peter E. Nye ◽  
Matthew J. Solensky

Abstract Satellite telemetry was used to determine fall migratory movements of Ospreys (Pandion haliaetus) breeding in the United States. Study areas were established along the lower Columbia River between Oregon and Washington; in north-central Minnesota; on Shelter Island, New York; and in southern New Jersey. Seventy-four adults (25 males, 49 females) were tracked from 1995 through 1999. Migration routes differed among populations but not by sex. Western Ospreys migrated through California and to a lesser degree other western states and wintered in Mexico (88%), El Salvador (6%), and Honduras (6%) (25.9°N to 13.0°N and 108.3°W to 87.3°W). Minnesota Ospreys migrated along three routes: (1) through the Central U.S. and then along the east coast of Mexico, (2) along the Mississippi River Valley, then across the Gulf of Mexico, or (3) through the southeastern U.S., then across the Caribbean. East Coast birds migrated along the eastern seaboard of the U.S., through Florida, and across the Caribbean. Midwestern birds wintered from Mexico south to Bolivia (22.35°N to 13.64°S, and 91.75°W to 61.76°W), while East Coast birds wintered from Florida to as far south as Brazil (27.48°N to 18.5°S and 80.4°W to 57.29°W). Dates of departure from breeding areas differed significantly between sexes and geographic regions, with females leaving earlier than males. Western birds traveled a shorter distance than either midwestern or eastern Ospreys. Females traveled farther than males from the same population, which resulted in females typically wintering south of males. Rutas de Migración Otoñales, Coordinación y Sitios de Invernada de Pandion haliaetus Determinados por Telemetría Satelital Resumen. Se utilizó telemetría satelital para determinar los movimientos de migración de otoño de individuos de Pandion haliaetus que nidifican en los Estados Unidos. Las áreas de estudio se establecieron a lo largo del Río Columbia entre Oregon y Washington; en el centro-norte de Minnesota; en la Isla Shelter, Nueva York; y en el sur de Nueva Jersey. Setenta y cuatro adultos (25 machos, 49 hembras) fueron seguidos mediante telemetría desde 1995 hasta 1999. Las rutas de migración se diferenciaron entre poblaciones pero no entre sexos. Los individuos de P. haliaetus del oeste, migraron a través de California y en menor grado a través de otros estados del oeste e invernaron en México (88%), El Salvador (6%) y Honduras (6%) (25.9°N a 13.0°N y 108.3°O a 87.3°O). Las aves de Minnesota migraron a lo largo de tres rutas: (1) a través del los E.E.U.U. centrales y luego a lo largo de la costa este de México, (2) a lo largo del valle del Río Mississippi y luego a través del Golfo de México, o (3) a través del sur de los E.E.U.U. y luego a través del Caribe. Las aves de la costa este, migraron a lo largo de la costa este de los E.E.U.U., por Florida y a través del Caribe. Las aves del medio-oeste, invernaron desde México hacia el sur hasta Bolivia (22.35°N a 13.64°S, y 91.75°O a 61.76°O), mientras que las aves de la costa este invernaron desde Florida hasta tan al sur como Brasil (27.48°N a 18.5°S y 80.4°O a 57.29°O). Las fechas de partida desde las áreas de nidificación difirieron significativamente entre sexos y regiones geográficas, partiendo las hembras antes que los machos. Las aves del oeste viajaron distancias más cortas que las aves del medio-oeste y del este. Considerando una misma población, las hembras viajaron más lejos que los machos, lo que resultó en que las hembras invernaron típicamente más al sur que los machos.


2019 ◽  
Vol 66 (2) ◽  
pp. 155-163 ◽  
Author(s):  
Alessandro Tedeschi ◽  
Michele Sorrenti ◽  
Michele Bottazzo ◽  
Mario Spagnesi ◽  
Ibon Telletxea ◽  
...  

Abstract Diverse spatio-temporal aspects of avian migration rely on relatively rigid endogenous programs. However, flexibility in migratory behavior may allow effective coping with unpredictable variation in ecological conditions that can occur during migration. We aimed at characterizing inter- and intraindividual variation of migratory behavior in a forest-dwelling wader species, the Eurasian woodcock Scolopax rusticola, focusing on spatio-temporal consistency across repeated migration episodes. By satellite-tracking birds from their wintering sites along the Italian peninsula to their breeding areas, we disclosed a remarkable variability in migration distances, with some birds flying more than 6,000 km to Central Asian breeding grounds (up to 101°E). Prebreeding migration was faster and of shorter duration than postbreeding migration. Birds moving over longer distances migrated faster during prebreeding migration, and those breeding at northernmost latitudes left their wintering areas earlier. Moreover, birds making longer migrations departed earlier from their breeding sites. Breeding site fidelity was very high, whereas fidelity to wintering areas increased with age. Migration routes were significantly consistent, both among repeated migration episodes and between pre- and postbreeding migration. Prebreeding migration departure date was not significantly repeatable, whereas arrival date to the breeding areas was highly repeatable. Hence, interindividual variation in migratory behavior of woodcocks was mostly explained by the location of the breeding areas, and spatial consistency was relatively large through the entire annual cycle. Flexibility in prebreeding migration departure date may suggest that environmental effects have a larger influence on temporal than on spatial aspects of migratory behavior.


2002 ◽  
Vol 12 (4) ◽  
pp. 327-333 ◽  
Author(s):  
Yutaka Kanai ◽  
Meenakshi Nagendran ◽  
Mutsuyuki Ueta ◽  
Yuri Markin ◽  
Juhani Rinne ◽  
...  

Siberian Crane Grus leucogeranus occurs only in Asia, and is Critically Endangered. The western population of the species has been almost extirpated, wintering at just two known sites, in Iran and India. To help conserve species that migrate long distances it is essential to have a comprehensive conservation plan that includes identification of migration routes and key resting areas. One Siberian Crane was satellite-tracked from the south Caspian Sea to its breeding grounds in Russia during the spring of 1996. The crane began migration on 6 March, and completed its migration on 1 May. This destination was formerly unknown as a breeding area for the species. During migration, the crane rested primarily at the eastern end of the Volga River delta. This suggests that the delta may be an important resting site for Siberian Crane.


Ibis ◽  
2012 ◽  
Vol 154 (2) ◽  
pp. 389-399 ◽  
Author(s):  
RUBEN LIMIÑANA ◽  
MARTA ROMERO ◽  
UGO MELLONE ◽  
VICENTE URIOS

2014 ◽  
Vol 281 (1778) ◽  
pp. 20132897 ◽  
Author(s):  
Christiane Trierweiler ◽  
Raymond H. G. Klaassen ◽  
Rudi H. Drent ◽  
Klaus-Michael Exo ◽  
Jan Komdeur ◽  
...  

Knowledge about migratory connectivity, the degree to which individuals from the same breeding site migrate to the same wintering site, is essential to understand processes affecting populations of migrants throughout the annual cycle. Here, we study the migration system of a long-distance migratory bird, the Montagu's harrier Circus pygargus , by tracking individuals from different breeding populations throughout northern Europe. We identified three main migration routes towards wintering areas in sub-Saharan Africa. Wintering areas and migration routes of different breeding populations overlapped, a pattern best described by ‘weak (diffuse) connectivity’. Migratory performance, i.e. timing, duration, distance and speed of migration, was surprisingly similar for the three routes despite differences in habitat characteristics. This study provides, to our knowledge, a first comprehensive overview of the migration system of a Palaearctic-African long-distance migrant. We emphasize the importance of spatial scale (e.g. distances between breeding populations) in defining patterns of connectivity and suggest that knowledge about fundamental aspects determining distribution patterns, such as the among-individual variation in mean migration directions, is required to ultimately understand migratory connectivity. Furthermore, we stress that for conservation purposes it is pivotal to consider wintering areas as well as migration routes and in particular stopover sites.


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