Foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations
The work was supported by Aarhus Univ., Denmark, the Norwegian Research Council (project MIGRAPOP, granted to I. Tombre) and the Schure-Beijerinck-Popping Fund (granted to BAN). The migration strategy of many capital breeders is to garner body stores along the flyway at distinct stopover sites. The...
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/12520 2024-04-28T08:11:53+00:00 Foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations Chudzińska, Magda E. Nabe-Nielsen, Jacob Nolet, Bart A. Madsen, Jesper University of St Andrews. School of Biology University of St Andrews. Sea Mammal Research Unit University of St Andrews. Centre for Research into Ecological & Environmental Modelling 2018-01-19T11:30:09Z 12 2245159 application/pdf https://hdl.handle.net/10023/12520 https://doi.org/10.1111/jav.00899 eng eng Journal of Avian Biology 252091995 84581b6c-3d8b-41f6-9283-e92d1ae3e947 84959449263 Chudzińska , M E , Nabe-Nielsen , J , Nolet , B A & Madsen , J 2016 , ' Foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations ' , Journal of Avian Biology , vol. 47 , no. 4 , pp. 563-574 . https://doi.org/10.1111/jav.00899 0908-8857 ORCID: /0000-0001-9568-1504/work/40797772 https://hdl.handle.net/10023/12520 doi:10.1111/jav.00899 QH301 Biology Ecology Evolution Behavior and Systematics Animal Science and Zoology DAS QH301 Journal article 2018 ftstandrewserep https://doi.org/10.1111/jav.00899 2024-04-09T23:33:08Z The work was supported by Aarhus Univ., Denmark, the Norwegian Research Council (project MIGRAPOP, granted to I. Tombre) and the Schure-Beijerinck-Popping Fund (granted to BAN). The migration strategy of many capital breeders is to garner body stores along the flyway at distinct stopover sites. The rate at which they can fuel is likely to be strongly influenced by a range of factors, such as physiology, food availability, time available for foraging and perceived predation. We analysed the foraging behaviour and fuel accumulation of pink-footed geese, an Arctic capital breeder, at their mid-flyway spring stopover site and evaluated to what extent their behaviour and fuelling were related to physiological and external factors and how it differed from other stopovers along the flyway. We found that fuel accumulation rates of geese at the mid-flyway site were limited by habitat availability rather than by digestive constraints. However, as the time available for foraging increased over the stopover season, geese were able to keep constant fuelling rate. Putting this in perspective, geese increased their daily net energy intake along the flyway corresponding to the increase in time available for foraging. The net energy intake per hour of foraging remained the same. Geese showed differences in their reaction to predators/disturbance between the sites, taking higher risks particularly at the final stopover site. Hence, perceived predation along the flyway may force birds to postpone the final fuel accumulation to the last stopover along the flyway. Flexibility in behaviour appears to be an important trait to ensure fitness in this capital breeder. Our findings are based on a new, improved method for estimating fuel accumulation of animals foraging in heterogeneous landscapes based on data obtained from satellite telemetry and habitat specific intake rates. Peer reviewed Article in Journal/Newspaper Arctic University of St Andrews: Digital Research Repository Journal of Avian Biology 47 4 563 574 |
institution |
Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
QH301 Biology Ecology Evolution Behavior and Systematics Animal Science and Zoology DAS QH301 |
spellingShingle |
QH301 Biology Ecology Evolution Behavior and Systematics Animal Science and Zoology DAS QH301 Chudzińska, Magda E. Nabe-Nielsen, Jacob Nolet, Bart A. Madsen, Jesper Foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations |
topic_facet |
QH301 Biology Ecology Evolution Behavior and Systematics Animal Science and Zoology DAS QH301 |
description |
The work was supported by Aarhus Univ., Denmark, the Norwegian Research Council (project MIGRAPOP, granted to I. Tombre) and the Schure-Beijerinck-Popping Fund (granted to BAN). The migration strategy of many capital breeders is to garner body stores along the flyway at distinct stopover sites. The rate at which they can fuel is likely to be strongly influenced by a range of factors, such as physiology, food availability, time available for foraging and perceived predation. We analysed the foraging behaviour and fuel accumulation of pink-footed geese, an Arctic capital breeder, at their mid-flyway spring stopover site and evaluated to what extent their behaviour and fuelling were related to physiological and external factors and how it differed from other stopovers along the flyway. We found that fuel accumulation rates of geese at the mid-flyway site were limited by habitat availability rather than by digestive constraints. However, as the time available for foraging increased over the stopover season, geese were able to keep constant fuelling rate. Putting this in perspective, geese increased their daily net energy intake along the flyway corresponding to the increase in time available for foraging. The net energy intake per hour of foraging remained the same. Geese showed differences in their reaction to predators/disturbance between the sites, taking higher risks particularly at the final stopover site. Hence, perceived predation along the flyway may force birds to postpone the final fuel accumulation to the last stopover along the flyway. Flexibility in behaviour appears to be an important trait to ensure fitness in this capital breeder. Our findings are based on a new, improved method for estimating fuel accumulation of animals foraging in heterogeneous landscapes based on data obtained from satellite telemetry and habitat specific intake rates. Peer reviewed |
author2 |
University of St Andrews. School of Biology University of St Andrews. Sea Mammal Research Unit University of St Andrews. Centre for Research into Ecological & Environmental Modelling |
format |
Article in Journal/Newspaper |
author |
Chudzińska, Magda E. Nabe-Nielsen, Jacob Nolet, Bart A. Madsen, Jesper |
author_facet |
Chudzińska, Magda E. Nabe-Nielsen, Jacob Nolet, Bart A. Madsen, Jesper |
author_sort |
Chudzińska, Magda E. |
title |
Foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations |
title_short |
Foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations |
title_full |
Foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations |
title_fullStr |
Foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations |
title_full_unstemmed |
Foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations |
title_sort |
foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations |
publishDate |
2018 |
url |
https://hdl.handle.net/10023/12520 https://doi.org/10.1111/jav.00899 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Journal of Avian Biology 252091995 84581b6c-3d8b-41f6-9283-e92d1ae3e947 84959449263 Chudzińska , M E , Nabe-Nielsen , J , Nolet , B A & Madsen , J 2016 , ' Foraging behaviour and fuel accumulation of capital breeders during spring migration as derived from a combination of satellite- and ground-based observations ' , Journal of Avian Biology , vol. 47 , no. 4 , pp. 563-574 . https://doi.org/10.1111/jav.00899 0908-8857 ORCID: /0000-0001-9568-1504/work/40797772 https://hdl.handle.net/10023/12520 doi:10.1111/jav.00899 |
op_doi |
https://doi.org/10.1111/jav.00899 |
container_title |
Journal of Avian Biology |
container_volume |
47 |
container_issue |
4 |
container_start_page |
563 |
op_container_end_page |
574 |
_version_ |
1797579050345037824 |