Lack of competition between barnacle geese Branta leucopsis and pink‐footed geese Anser brachyrhynchus during the pre‐breeding period in Svalbard
The feeding ecology of barnacle geese and pink‐footed geese was studied in Sassendalen, Svalbard during the pre‐nesting period (late May) to assess the potential for inter‐specific competition. Barnacle geese fed almost exclusively (97%) by grazing above‐ground plant material, mostly (79%) along sno...
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Online Access: | http://dx.doi.org/10.1111/j.0908-8857.2005.03540.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0908-8857.2005.03540.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0908-8857.2005.03540.x |
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crwiley:10.1111/j.0908-8857.2005.03540.x 2024-03-31T07:48:11+00:00 Lack of competition between barnacle geese Branta leucopsis and pink‐footed geese Anser brachyrhynchus during the pre‐breeding period in Svalbard Fox, Anthony D. Bergersen, Espen 2005 http://dx.doi.org/10.1111/j.0908-8857.2005.03540.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0908-8857.2005.03540.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0908-8857.2005.03540.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Avian Biology volume 36, issue 3, page 173-178 ISSN 0908-8857 1600-048X Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2005 crwiley https://doi.org/10.1111/j.0908-8857.2005.03540.x 2024-03-05T05:30:11Z The feeding ecology of barnacle geese and pink‐footed geese was studied in Sassendalen, Svalbard during the pre‐nesting period (late May) to assess the potential for inter‐specific competition. Barnacle geese fed almost exclusively (97%) by grazing above‐ground plant material, mostly (79%) along snow edges in moss‐mat habitats. Pink‐footed geese fed mostly (93%) by excavating below‐ground parts of plants, mostly (56%) away from snow and were more evenly distributed between habitat types. Barnacle goose faeces contained mostly (62%) moss, that of pink‐footed geese mostly (48%) below‐ground plant storage organs (especially Bistorta viviparum L.). Principal components analysis of dropping contents showed no overlap in species diet in allopatry or sympatry. There was little overlap in diet and feeding ecology of the two species at this pre‐nesting feeding site. Hence, unless increased goose feeding densities affect future vegetation density and composition, under present circumstances, increasing numbers of either species is unlikely to affect foraging conditions for the other at this important stage in the annual cycle. However, such changes could have local density‐dependent intra‐specific effects. Article in Journal/Newspaper Anser brachyrhynchus Barnacle goose Branta leucopsis Svalbard Wiley Online Library Sassendalen ENVELOPE(17.211,17.211,78.266,78.266) Svalbard Journal of Avian Biology 36 3 173 178 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Fox, Anthony D. Bergersen, Espen Lack of competition between barnacle geese Branta leucopsis and pink‐footed geese Anser brachyrhynchus during the pre‐breeding period in Svalbard |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
The feeding ecology of barnacle geese and pink‐footed geese was studied in Sassendalen, Svalbard during the pre‐nesting period (late May) to assess the potential for inter‐specific competition. Barnacle geese fed almost exclusively (97%) by grazing above‐ground plant material, mostly (79%) along snow edges in moss‐mat habitats. Pink‐footed geese fed mostly (93%) by excavating below‐ground parts of plants, mostly (56%) away from snow and were more evenly distributed between habitat types. Barnacle goose faeces contained mostly (62%) moss, that of pink‐footed geese mostly (48%) below‐ground plant storage organs (especially Bistorta viviparum L.). Principal components analysis of dropping contents showed no overlap in species diet in allopatry or sympatry. There was little overlap in diet and feeding ecology of the two species at this pre‐nesting feeding site. Hence, unless increased goose feeding densities affect future vegetation density and composition, under present circumstances, increasing numbers of either species is unlikely to affect foraging conditions for the other at this important stage in the annual cycle. However, such changes could have local density‐dependent intra‐specific effects. |
format |
Article in Journal/Newspaper |
author |
Fox, Anthony D. Bergersen, Espen |
author_facet |
Fox, Anthony D. Bergersen, Espen |
author_sort |
Fox, Anthony D. |
title |
Lack of competition between barnacle geese Branta leucopsis and pink‐footed geese Anser brachyrhynchus during the pre‐breeding period in Svalbard |
title_short |
Lack of competition between barnacle geese Branta leucopsis and pink‐footed geese Anser brachyrhynchus during the pre‐breeding period in Svalbard |
title_full |
Lack of competition between barnacle geese Branta leucopsis and pink‐footed geese Anser brachyrhynchus during the pre‐breeding period in Svalbard |
title_fullStr |
Lack of competition between barnacle geese Branta leucopsis and pink‐footed geese Anser brachyrhynchus during the pre‐breeding period in Svalbard |
title_full_unstemmed |
Lack of competition between barnacle geese Branta leucopsis and pink‐footed geese Anser brachyrhynchus during the pre‐breeding period in Svalbard |
title_sort |
lack of competition between barnacle geese branta leucopsis and pink‐footed geese anser brachyrhynchus during the pre‐breeding period in svalbard |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1111/j.0908-8857.2005.03540.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0908-8857.2005.03540.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0908-8857.2005.03540.x |
long_lat |
ENVELOPE(17.211,17.211,78.266,78.266) |
geographic |
Sassendalen Svalbard |
geographic_facet |
Sassendalen Svalbard |
genre |
Anser brachyrhynchus Barnacle goose Branta leucopsis Svalbard |
genre_facet |
Anser brachyrhynchus Barnacle goose Branta leucopsis Svalbard |
op_source |
Journal of Avian Biology volume 36, issue 3, page 173-178 ISSN 0908-8857 1600-048X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.0908-8857.2005.03540.x |
container_title |
Journal of Avian Biology |
container_volume |
36 |
container_issue |
3 |
container_start_page |
173 |
op_container_end_page |
178 |
_version_ |
1795029480425652224 |