Patch choice of avian herbivores along a migration trajectory:From temperate to arctic
Migratory waterfowl species seem to track temporal and spatial pulses of optimal forage availability on their way from temperate wintering to arctic breeding sites. In order to unravel the relative contribution of forage quality and forage biomass to foraging choices in avian herbivores, we experime...
Published in: | Basic and Applied Ecology |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2007
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Online Access: | https://hdl.handle.net/11370/a3cc63bb-f203-4101-9277-ac03c85e9663 https://research.rug.nl/en/publications/a3cc63bb-f203-4101-9277-ac03c85e9663 https://doi.org/10.1016/j.baae.2006.07.001 |
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ftunigroningenpu:oai:pure.rug.nl:publications/a3cc63bb-f203-4101-9277-ac03c85e9663 2024-06-02T07:59:46+00:00 Patch choice of avian herbivores along a migration trajectory:From temperate to arctic van der Graaf, A.J. Stahl, J. Veen, G.F. Havinga, R.M. Drent, R.H. 2007 https://hdl.handle.net/11370/a3cc63bb-f203-4101-9277-ac03c85e9663 https://research.rug.nl/en/publications/a3cc63bb-f203-4101-9277-ac03c85e9663 https://doi.org/10.1016/j.baae.2006.07.001 eng eng https://research.rug.nl/en/publications/a3cc63bb-f203-4101-9277-ac03c85e9663 info:eu-repo/semantics/closedAccess van der Graaf , A J , Stahl , J , Veen , G F , Havinga , R M & Drent , R H 2007 , ' Patch choice of avian herbivores along a migration trajectory : From temperate to arctic ' , Basic and Applied Ecology , vol. 8 , no. 4 , pp. 354-363 . https://doi.org/10.1016/j.baae.2006.07.001 barnacle goose Branta leucopsis flyway forage quality grazing experiment plant biomass ptant-herbivore interactions salt marsh GEESE BRANTA-LEUCOPSIS BARNACLE GEESE BRENT GEESE BODY-SIZE FORAGING BEHAVIOR GOOSE POPULATION KOLOKOLKOVA BAY FOOD QUALITY B-BERNICLA SNOW GEESE article 2007 ftunigroningenpu https://doi.org/10.1016/j.baae.2006.07.001 2024-05-07T18:29:42Z Migratory waterfowl species seem to track temporal and spatial pulses of optimal forage availability on their way from temperate wintering to arctic breeding sites. In order to unravel the relative contribution of forage quality and forage biomass to foraging choices in avian herbivores, we experimentally manipulated biomass and quality of main forage plants through fertilisation and grazing exclusion at three sites along the flyway of barnacle geese, Branta leucopsis. Fertilisation increased the nitrogen content of the forage and grazing exclusion increased biomass levels. Manipulated plots were offered to wild geese in a random block experimental design and goose visitation was measured through dropping counts. At all sites there was a trend towards a higher preference of plots with increased quality and average biomass above plots with an average quality and increased biomass. Generally, geese preferred plots with highest standing crop of nitrogen. The numerical response of the geese to forage changes was supported by behavioural observations at the Baltic site. We conclude that for migrating barnacle geese the bottlenecks in the standing crop of nitrogen appear to tie in the limited biomass availability at the Baltic stopover site and the limited nutrient content of food in the Arctic breeding site, restricting the potential nutrient intake on these sites. (C) 2006 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved. Article in Journal/Newspaper Arctic Arctic Barnacle goose Branta leucopsis brent geese University of Groningen research database Arctic Basic and Applied Ecology 8 4 354 363 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
barnacle goose Branta leucopsis flyway forage quality grazing experiment plant biomass ptant-herbivore interactions salt marsh GEESE BRANTA-LEUCOPSIS BARNACLE GEESE BRENT GEESE BODY-SIZE FORAGING BEHAVIOR GOOSE POPULATION KOLOKOLKOVA BAY FOOD QUALITY B-BERNICLA SNOW GEESE |
spellingShingle |
barnacle goose Branta leucopsis flyway forage quality grazing experiment plant biomass ptant-herbivore interactions salt marsh GEESE BRANTA-LEUCOPSIS BARNACLE GEESE BRENT GEESE BODY-SIZE FORAGING BEHAVIOR GOOSE POPULATION KOLOKOLKOVA BAY FOOD QUALITY B-BERNICLA SNOW GEESE van der Graaf, A.J. Stahl, J. Veen, G.F. Havinga, R.M. Drent, R.H. Patch choice of avian herbivores along a migration trajectory:From temperate to arctic |
topic_facet |
barnacle goose Branta leucopsis flyway forage quality grazing experiment plant biomass ptant-herbivore interactions salt marsh GEESE BRANTA-LEUCOPSIS BARNACLE GEESE BRENT GEESE BODY-SIZE FORAGING BEHAVIOR GOOSE POPULATION KOLOKOLKOVA BAY FOOD QUALITY B-BERNICLA SNOW GEESE |
description |
Migratory waterfowl species seem to track temporal and spatial pulses of optimal forage availability on their way from temperate wintering to arctic breeding sites. In order to unravel the relative contribution of forage quality and forage biomass to foraging choices in avian herbivores, we experimentally manipulated biomass and quality of main forage plants through fertilisation and grazing exclusion at three sites along the flyway of barnacle geese, Branta leucopsis. Fertilisation increased the nitrogen content of the forage and grazing exclusion increased biomass levels. Manipulated plots were offered to wild geese in a random block experimental design and goose visitation was measured through dropping counts. At all sites there was a trend towards a higher preference of plots with increased quality and average biomass above plots with an average quality and increased biomass. Generally, geese preferred plots with highest standing crop of nitrogen. The numerical response of the geese to forage changes was supported by behavioural observations at the Baltic site. We conclude that for migrating barnacle geese the bottlenecks in the standing crop of nitrogen appear to tie in the limited biomass availability at the Baltic stopover site and the limited nutrient content of food in the Arctic breeding site, restricting the potential nutrient intake on these sites. (C) 2006 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
van der Graaf, A.J. Stahl, J. Veen, G.F. Havinga, R.M. Drent, R.H. |
author_facet |
van der Graaf, A.J. Stahl, J. Veen, G.F. Havinga, R.M. Drent, R.H. |
author_sort |
van der Graaf, A.J. |
title |
Patch choice of avian herbivores along a migration trajectory:From temperate to arctic |
title_short |
Patch choice of avian herbivores along a migration trajectory:From temperate to arctic |
title_full |
Patch choice of avian herbivores along a migration trajectory:From temperate to arctic |
title_fullStr |
Patch choice of avian herbivores along a migration trajectory:From temperate to arctic |
title_full_unstemmed |
Patch choice of avian herbivores along a migration trajectory:From temperate to arctic |
title_sort |
patch choice of avian herbivores along a migration trajectory:from temperate to arctic |
publishDate |
2007 |
url |
https://hdl.handle.net/11370/a3cc63bb-f203-4101-9277-ac03c85e9663 https://research.rug.nl/en/publications/a3cc63bb-f203-4101-9277-ac03c85e9663 https://doi.org/10.1016/j.baae.2006.07.001 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Barnacle goose Branta leucopsis brent geese |
genre_facet |
Arctic Arctic Barnacle goose Branta leucopsis brent geese |
op_source |
van der Graaf , A J , Stahl , J , Veen , G F , Havinga , R M & Drent , R H 2007 , ' Patch choice of avian herbivores along a migration trajectory : From temperate to arctic ' , Basic and Applied Ecology , vol. 8 , no. 4 , pp. 354-363 . https://doi.org/10.1016/j.baae.2006.07.001 |
op_relation |
https://research.rug.nl/en/publications/a3cc63bb-f203-4101-9277-ac03c85e9663 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.baae.2006.07.001 |
container_title |
Basic and Applied Ecology |
container_volume |
8 |
container_issue |
4 |
container_start_page |
354 |
op_container_end_page |
363 |
_version_ |
1800743864720424960 |