Can Surveillance Radar be used to Monitor the Foraging Distribution of Colonially Breeding Alcids?
Abstract We used surveillance radar to track flocks of colonially breeding alcids at Latrabjarg, northwest Iceland, that were returning from their feeding grounds. We compared the flight directions of incoming flocks during the chick-rearing period with alcid densities at sea during both the incubat...
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Online Access: | http://dx.doi.org/10.1093/condor/105.1.145 http://academic.oup.com/condor/article-pdf/105/1/145/29712117/condor0145.pdf |
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croxfordunivpr:10.1093/condor/105.1.145 2023-10-01T03:57:00+02:00 Can Surveillance Radar be used to Monitor the Foraging Distribution of Colonially Breeding Alcids? Lilliendahl, Kristjan Solmundsson, Jon Gudmundsson, Gudmundur A. Taylor, Lorna 2003 http://dx.doi.org/10.1093/condor/105.1.145 http://academic.oup.com/condor/article-pdf/105/1/145/29712117/condor0145.pdf en eng Oxford University Press (OUP) The Condor volume 105, issue 1, page 145-150 ISSN 0010-5422 1938-5129 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2003 croxfordunivpr https://doi.org/10.1093/condor/105.1.145 2023-09-08T10:47:10Z Abstract We used surveillance radar to track flocks of colonially breeding alcids at Latrabjarg, northwest Iceland, that were returning from their feeding grounds. We compared the flight directions of incoming flocks during the chick-rearing period with alcid densities at sea during both the incubation and chick-rearing periods. The direction of incoming flocks was significantly related to alcid distribution at sea during the chick-rearing period. At-sea alcid counts suggested a temporal change in alcid use of foraging areas within a breeding season. Surveillance radar appears practical for monitoring preferred foraging areas of alcids within seasons and between years. Further, radar can provide an overall picture of alcid distribution near colonies, complementary to studies on foraging flights of individual birds. ¿Pueden Utilizarse Radares de Vigilancia para Monitorear la Distribución de Álcidos que se Reproducen en Colonias? Resumen. En Latrabjarg, noroeste de Islandia, utilizamos radares de vigilancia para monitorear bandadas de álcidos que se reproducen en colonias y estaban retornando desde los sitios de forrajeo. Comparamos las direcciones de vuelo de llegada de bandadas durante el período de cría de polluelos con la densidad de álcidos en el mar durante los períodos de incubación y de cría de polluelos. La dirección de llegada de las bandadas se relacionó significativamente con la distribución de álcidos en el mar durante el período de cría de polluelos. Los conteos de álcidos en el mar sugirieron un cambio temporal en el uso de las áreas de forrajeo durante el período reproductivo. Los radares de vigilancia parecen funcionales para el monitoreo de las áreas de forrajeo preferidas por los álcidos tanto dentro de un mismo período reproductivo como entre años. Además, los radares pueden proveer una visión general de la distribución de álcidos en las cercanías de las colonias reproductivas complementando estudios sobre los vuelos de forrajeo de aves a nivel individual. Article in Journal/Newspaper Iceland Islandia Oxford University Press (via Crossref) The Condor 105 1 145 150 |
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Open Polar |
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Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
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Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Lilliendahl, Kristjan Solmundsson, Jon Gudmundsson, Gudmundur A. Taylor, Lorna Can Surveillance Radar be used to Monitor the Foraging Distribution of Colonially Breeding Alcids? |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract We used surveillance radar to track flocks of colonially breeding alcids at Latrabjarg, northwest Iceland, that were returning from their feeding grounds. We compared the flight directions of incoming flocks during the chick-rearing period with alcid densities at sea during both the incubation and chick-rearing periods. The direction of incoming flocks was significantly related to alcid distribution at sea during the chick-rearing period. At-sea alcid counts suggested a temporal change in alcid use of foraging areas within a breeding season. Surveillance radar appears practical for monitoring preferred foraging areas of alcids within seasons and between years. Further, radar can provide an overall picture of alcid distribution near colonies, complementary to studies on foraging flights of individual birds. ¿Pueden Utilizarse Radares de Vigilancia para Monitorear la Distribución de Álcidos que se Reproducen en Colonias? Resumen. En Latrabjarg, noroeste de Islandia, utilizamos radares de vigilancia para monitorear bandadas de álcidos que se reproducen en colonias y estaban retornando desde los sitios de forrajeo. Comparamos las direcciones de vuelo de llegada de bandadas durante el período de cría de polluelos con la densidad de álcidos en el mar durante los períodos de incubación y de cría de polluelos. La dirección de llegada de las bandadas se relacionó significativamente con la distribución de álcidos en el mar durante el período de cría de polluelos. Los conteos de álcidos en el mar sugirieron un cambio temporal en el uso de las áreas de forrajeo durante el período reproductivo. Los radares de vigilancia parecen funcionales para el monitoreo de las áreas de forrajeo preferidas por los álcidos tanto dentro de un mismo período reproductivo como entre años. Además, los radares pueden proveer una visión general de la distribución de álcidos en las cercanías de las colonias reproductivas complementando estudios sobre los vuelos de forrajeo de aves a nivel individual. |
format |
Article in Journal/Newspaper |
author |
Lilliendahl, Kristjan Solmundsson, Jon Gudmundsson, Gudmundur A. Taylor, Lorna |
author_facet |
Lilliendahl, Kristjan Solmundsson, Jon Gudmundsson, Gudmundur A. Taylor, Lorna |
author_sort |
Lilliendahl, Kristjan |
title |
Can Surveillance Radar be used to Monitor the Foraging Distribution of Colonially Breeding Alcids? |
title_short |
Can Surveillance Radar be used to Monitor the Foraging Distribution of Colonially Breeding Alcids? |
title_full |
Can Surveillance Radar be used to Monitor the Foraging Distribution of Colonially Breeding Alcids? |
title_fullStr |
Can Surveillance Radar be used to Monitor the Foraging Distribution of Colonially Breeding Alcids? |
title_full_unstemmed |
Can Surveillance Radar be used to Monitor the Foraging Distribution of Colonially Breeding Alcids? |
title_sort |
can surveillance radar be used to monitor the foraging distribution of colonially breeding alcids? |
publisher |
Oxford University Press (OUP) |
publishDate |
2003 |
url |
http://dx.doi.org/10.1093/condor/105.1.145 http://academic.oup.com/condor/article-pdf/105/1/145/29712117/condor0145.pdf |
genre |
Iceland Islandia |
genre_facet |
Iceland Islandia |
op_source |
The Condor volume 105, issue 1, page 145-150 ISSN 0010-5422 1938-5129 |
op_doi |
https://doi.org/10.1093/condor/105.1.145 |
container_title |
The Condor |
container_volume |
105 |
container_issue |
1 |
container_start_page |
145 |
op_container_end_page |
150 |
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1778527765952200704 |