Forecasting spring from afar? : Timing of migration and predictability of phenology along different migration routes of an avian herbivore
1. Herbivorous birds are hypothesized to migrate in spring along a seasonal gradient of plant profitability towards their breeding grounds (green wave hypothesis). For Arctic breeding species in particular, following highly profitable food is important, so that they can replenish resources along the...
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Language: | English |
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Online Access: | http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1b8dlpxd002zc2 https://doi.org/10.1111/1365-2656.12281 |
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ftubkonstanz:oai:kops.uni-konstanz.de:123456789/47626 2024-02-11T10:01:16+01:00 Forecasting spring from afar? : Timing of migration and predictability of phenology along different migration routes of an avian herbivore Kölzsch, Andrea Bauer, Silke de Boer, Rob Griffin, Larry Cabot, David Exo, Klaus-Michael van der Jeugd, Henk P. Nolet, Bart A. 2015 application/pdf http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1b8dlpxd002zc2 https://doi.org/10.1111/1365-2656.12281 eng eng http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1b8dlpxd002zc2 http://dx.doi.org/10.1111/1365-2656.12281 25117616 1684179491 https://rightsstatements.org/page/InC/1.0/ Journal of Animal Ecology. 2015, 84(1), pp. 272-283. ISSN 0021-8790. eISSN 1365-2656. Available under: doi:10.1111/1365-2656.12281 barnacle goose Branta leucopsis capital breeding climatic barrier GDD jerk green wave hypothesis migration flyway onset of spring ddc:570 doc-type:article doc-type:Text 2015 ftubkonstanz https://doi.org/10.1111/1365-2656.12281 2024-01-21T23:56:21Z 1. Herbivorous birds are hypothesized to migrate in spring along a seasonal gradient of plant profitability towards their breeding grounds (green wave hypothesis). For Arctic breeding species in particular, following highly profitable food is important, so that they can replenish resources along the way and arrive in optimal body condition to start breeding early. 2. We compared the timing of migratory movements of Arctic breeding geese on different flyways to examine whether flyways differed in the predictability of spring conditions at stopovers and whether this was reflected in the degree to which birds were following the green wave. 3. Barnacle geese (Branta leucopsis) were tracked with solar GPS/ARGOS PTTs from their wintering grounds to breeding sites in Greenland (N = 7), Svalbard (N = 21) and the Barents Sea (N = 12). The numerous stopover sites of all birds were combined into a set of 16 general stopover regions. 4. The predictability of climatic conditions along the flyways was calculated as the correlation and slope between onsets of spring at consecutive stopovers. These values differed between sites, mainly because of the presence or absence of ecological barriers. Goose arrival at stopovers was more closely tied to the local onset of spring when predictability was higher and when geese attempted breeding that year. 5. All birds arrived at early stopovers after the onset of spring and arrived at the breeding grounds before the onset of spring, thus overtaking the green wave. This is in accordance with patterns expected for capital breeders: first, they must come into condition; at intermediate stopovers, arrival with the food quality peak is important to stay in condition, and at the breeding grounds, early arrival is favoured so that hatching of young can coincide with the peak of food quality. 6. Our results suggest that a chain of correlations between climatic conditions at subsequent stopovers enables geese to closely track the green wave. However, the birds' precision of migratory timing seems ... Article in Journal/Newspaper Arctic Barents Sea Barnacle goose Branta leucopsis Greenland Svalbard KOPS - The Institutional Repository of the University of Konstanz Arctic Svalbard Barents Sea Greenland Journal of Animal Ecology 84 1 272 283 |
institution |
Open Polar |
collection |
KOPS - The Institutional Repository of the University of Konstanz |
op_collection_id |
ftubkonstanz |
language |
English |
topic |
barnacle goose Branta leucopsis capital breeding climatic barrier GDD jerk green wave hypothesis migration flyway onset of spring ddc:570 |
spellingShingle |
barnacle goose Branta leucopsis capital breeding climatic barrier GDD jerk green wave hypothesis migration flyway onset of spring ddc:570 Kölzsch, Andrea Bauer, Silke de Boer, Rob Griffin, Larry Cabot, David Exo, Klaus-Michael van der Jeugd, Henk P. Nolet, Bart A. Forecasting spring from afar? : Timing of migration and predictability of phenology along different migration routes of an avian herbivore |
topic_facet |
barnacle goose Branta leucopsis capital breeding climatic barrier GDD jerk green wave hypothesis migration flyway onset of spring ddc:570 |
description |
1. Herbivorous birds are hypothesized to migrate in spring along a seasonal gradient of plant profitability towards their breeding grounds (green wave hypothesis). For Arctic breeding species in particular, following highly profitable food is important, so that they can replenish resources along the way and arrive in optimal body condition to start breeding early. 2. We compared the timing of migratory movements of Arctic breeding geese on different flyways to examine whether flyways differed in the predictability of spring conditions at stopovers and whether this was reflected in the degree to which birds were following the green wave. 3. Barnacle geese (Branta leucopsis) were tracked with solar GPS/ARGOS PTTs from their wintering grounds to breeding sites in Greenland (N = 7), Svalbard (N = 21) and the Barents Sea (N = 12). The numerous stopover sites of all birds were combined into a set of 16 general stopover regions. 4. The predictability of climatic conditions along the flyways was calculated as the correlation and slope between onsets of spring at consecutive stopovers. These values differed between sites, mainly because of the presence or absence of ecological barriers. Goose arrival at stopovers was more closely tied to the local onset of spring when predictability was higher and when geese attempted breeding that year. 5. All birds arrived at early stopovers after the onset of spring and arrived at the breeding grounds before the onset of spring, thus overtaking the green wave. This is in accordance with patterns expected for capital breeders: first, they must come into condition; at intermediate stopovers, arrival with the food quality peak is important to stay in condition, and at the breeding grounds, early arrival is favoured so that hatching of young can coincide with the peak of food quality. 6. Our results suggest that a chain of correlations between climatic conditions at subsequent stopovers enables geese to closely track the green wave. However, the birds' precision of migratory timing seems ... |
format |
Article in Journal/Newspaper |
author |
Kölzsch, Andrea Bauer, Silke de Boer, Rob Griffin, Larry Cabot, David Exo, Klaus-Michael van der Jeugd, Henk P. Nolet, Bart A. |
author_facet |
Kölzsch, Andrea Bauer, Silke de Boer, Rob Griffin, Larry Cabot, David Exo, Klaus-Michael van der Jeugd, Henk P. Nolet, Bart A. |
author_sort |
Kölzsch, Andrea |
title |
Forecasting spring from afar? : Timing of migration and predictability of phenology along different migration routes of an avian herbivore |
title_short |
Forecasting spring from afar? : Timing of migration and predictability of phenology along different migration routes of an avian herbivore |
title_full |
Forecasting spring from afar? : Timing of migration and predictability of phenology along different migration routes of an avian herbivore |
title_fullStr |
Forecasting spring from afar? : Timing of migration and predictability of phenology along different migration routes of an avian herbivore |
title_full_unstemmed |
Forecasting spring from afar? : Timing of migration and predictability of phenology along different migration routes of an avian herbivore |
title_sort |
forecasting spring from afar? : timing of migration and predictability of phenology along different migration routes of an avian herbivore |
publishDate |
2015 |
url |
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1b8dlpxd002zc2 https://doi.org/10.1111/1365-2656.12281 |
geographic |
Arctic Svalbard Barents Sea Greenland |
geographic_facet |
Arctic Svalbard Barents Sea Greenland |
genre |
Arctic Barents Sea Barnacle goose Branta leucopsis Greenland Svalbard |
genre_facet |
Arctic Barents Sea Barnacle goose Branta leucopsis Greenland Svalbard |
op_source |
Journal of Animal Ecology. 2015, 84(1), pp. 272-283. ISSN 0021-8790. eISSN 1365-2656. Available under: doi:10.1111/1365-2656.12281 |
op_relation |
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1b8dlpxd002zc2 http://dx.doi.org/10.1111/1365-2656.12281 25117616 1684179491 |
op_rights |
https://rightsstatements.org/page/InC/1.0/ |
op_doi |
https://doi.org/10.1111/1365-2656.12281 |
container_title |
Journal of Animal Ecology |
container_volume |
84 |
container_issue |
1 |
container_start_page |
272 |
op_container_end_page |
283 |
_version_ |
1790597051989360640 |