Diet composition of three swan species (Mute Swan, Whooper Swan and Bewick's swan) in the eastern part of the Gulf of Finland based on fecal analysis
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2025
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| author | Kouzov, Sergei Koptseva, Elena Gubelit, Yulia Kravchuk, Anna |
| author_facet | Kouzov, Sergei Koptseva, Elena Gubelit, Yulia Kravchuk, Anna |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The quality of swans' nutrition at spring migration stopovers is important for their successful breeding. The aim of this study was to increase our understanding of the differences in nutrition of different swan species when sharing the same habitat. Microscopic analysis of Cygnus olor, C. cygnus, and C. bewickii feces collected in the eastern part of the Gulf of Finland in February-April 2014-2019 was performed. We measured food preferences of the three swan species using non-metric multidimensional scaling (NMDS). The width and overlap of dietary niches were also calculated. The diet of C. olor consists almost entirely of soft submerged aquatic vegetation, mainly macroalgae. Samples of the other two species except macroalgae contained large amounts of young shoots and roots of rigid semi-submerged and coastal vegetation. The dietary niche of C. cygnus is the most isolated because it is dominated by thick rhizomes of Phragmites australis, which are hardly used by other swan species. The diet of Bewick's swans was similar in many respects to that of the Mute swan, but Bewick's swans much more often preferred vegetative parts of submerged and semi-submerged plants, such as Stuckenia pectinata, Potamogeton perfoliatus, Sparganium sp., Nuphar lutea, and others. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_963944 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Diet composition of three swan species (Mute Swan, Whooper Swan and Bewick's swan) in the eastern part of the Gulf of Finland based on fecal analysis Kouzov, Sergei Koptseva, Elena Gubelit, Yulia Kravchuk, Anna Agrostis sp.; Alisma plantago-aquatica; Bewicks_Swan_10b; Bewicks_Swan_11b; Bewicks_Swan_12b; Bewicks_Swan_13b; Bewicks_Swan_14b; Bewicks_Swan_15b; Bewicks_Swan_16b; Bewicks_Swan_21b; Bewicks_Swan_23b; Bewicks_Swan_26b; Bewicks_Swan_29b; Bewicks_Swan_33b; Bewicks_Swan_34b; Bewicks_Swan_35b; Bewicks_Swan_36b; Bewicks_Swan_40b; Bewicks_Swan_43b; Bewicks_Swan_44b; Bewicks_Swan_47b; Bewicks_Swan_49b; Bewicks_Swan_52b; Bewicks_Swan_53b; Bewicks_Swan_55b; Bewicks_Swan_56b; Bewicks_Swan_58b; Bewicks_Swan_60b; Bewicks_Swan_72b; Bewicks_Swan_74b; Bewicks_Swan_7b; Bewicks_Swan_8b; Bolboschoenus maritimus; Butomus umbellatus; Calamagrostis sp.; Carex sp.; Chaetomorpha sp.; Cocconeis placentula; Cycladophora sp.; Cygnus bewickii; Cygnus cygnus; Cygnus olor; Date/Time of event; Detritus; Diatoma elongatum; Diatoms, other; diet composition; Eleocharis palustris; Event label; fecal analysis; Fucus sp.; Gomphonema constrictum; Gulf of Finland; Hydrocharis morsus-ranae; Latitude of event; Longitude of event; Melosira varians; Microspora amoena; Mougeotia sp.; Mute_Swan_10m; Mute_Swan_11m; Mute_Swan_12m; Mute_Swan_13m; Mute_Swan_14m; Mute_Swan_1m; Mute_Swan_2m; Mute_Swan_32m; Mute_Swan_33m; Mute_Swan_34m; Mute_Swan_35m; Mute_Swan_36m; Mute_Swan_37m; Mute_Swan_38m; Mute_Swan_39m; Mute_Swan_3m; Mute_Swan_40m; Mute_Swan_41m; Mute_Swan_42m; Mute_Swan_43m; Mute_Swan_44m; Mute_Swan_45m; Mute_Swan_46m; Mute_Swan_47m; Mute_Swan_48m; Mute_Swan_49m; Mute_Swan_4m; Mute_Swan_50m; Mute_Swan_51m; Mute_Swan_56m; Mute_Swan_57m; Mute_Swan_58m; Mute_Swan_59m; Mute_Swan_5m; Mute_Swan_60m; Mute_Swan_61m; Mute_Swan_62m; Mute_Swan_63m; Mute_Swan_64m; Mute_Swan_66m; Mute_Swan_67m; Mute_Swan_68m; Mute_Swan_6m; Mute_Swan_7m; Mute_Swan_8m; Mute_Swan_9m; Myriophyllum heterophyllum; Navicula sp.; Non-metric multidimensional scaling; Nuphar lutea; Oedogonium sp.; Phalaris arundinacea; Phragmites australis; Potamogeton perfoliatus; Pylaiella littoralis; Rhizoclonium sp.; Sagittaria sagittifolia; Sample ID; Schoenoplectus tabernaemontani; Sparganium sp.; Species, common name; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Spirogyra sp.; Stigeoclonium sp.; Stuckenia pectinata; Tabellaria fenestrata; Ulothrix zonata; Ulva sp.; Whooper_Swan_11c; Whooper_Swan_13c; Whooper_Swan_14c; Whooper_Swan_15c; Whooper_Swan_16c; Whooper_Swan_17c; Whooper_Swan_18c; Whooper_Swan_19c; Whooper_Swan_1c; Whooper_Swan_21c; Whooper_Swan_22c; Whooper_Swan_25c; Whooper_Swan_26c; Whooper_Swan_27c; Whooper_Swan_28c; Whooper_Swan_29c; Whooper_Swan_2c; Whooper_Swan_31c; Whooper_Swan_32c; Whooper_Swan_33c; Whooper_Swan_34c; Whooper_Swan_35c; Whooper_Swan_38c; Whooper_Swan_39c; Whooper_Swan_40c; Whooper_Swan_41c; Whooper_Swan_42c; Whooper_Swan_43c; Whooper_Swan_44c; Whooper_Swan_45c; Whooper_Swan_46c; Whooper_Swan_48c; Whooper_Swan_49c; Whooper_Swan_50c; Whooper_Swan_51c; Whooper_Swan_52c; Whooper_Swan_53c; Whooper_Swan_54c; Whooper_Swan_55c; Whooper_Swan_56c; Whooper_Swan_57c; Whooper_Swan_59c; Whooper_Swan_60c; Whooper_Swan_61c; Whooper_Swan_67c; Whooper_Swan_71c; Zannichellia palustris The quality of swans' nutrition at spring migration stopovers is important for their successful breeding. The aim of this study was to increase our understanding of the differences in nutrition of different swan species when sharing the same habitat. Microscopic analysis of Cygnus olor, C. cygnus, and C. bewickii feces collected in the eastern part of the Gulf of Finland in February-April 2014-2019 was performed. We measured food preferences of the three swan species using non-metric multidimensional scaling (NMDS). The width and overlap of dietary niches were also calculated. The diet of C. olor consists almost entirely of soft submerged aquatic vegetation, mainly macroalgae. Samples of the other two species except macroalgae contained large amounts of young shoots and roots of rigid semi-submerged and coastal vegetation. The dietary niche of C. cygnus is the most isolated because it is dominated by thick rhizomes of Phragmites australis, which are hardly used by other swan species. The diet of Bewick's swans was similar in many respects to that of the Mute swan, but Bewick's swans much more often preferred vegetative parts of submerged and semi-submerged plants, such as Stuckenia pectinata, Potamogeton perfoliatus, Sparganium sp., Nuphar lutea, and others. |
| title | Diet composition of three swan species (Mute Swan, Whooper Swan and Bewick's swan) in the eastern part of the Gulf of Finland based on fecal analysis |
| topic | Agrostis sp.; Alisma plantago-aquatica; Bewicks_Swan_10b; Bewicks_Swan_11b; Bewicks_Swan_12b; Bewicks_Swan_13b; Bewicks_Swan_14b; Bewicks_Swan_15b; Bewicks_Swan_16b; Bewicks_Swan_21b; Bewicks_Swan_23b; Bewicks_Swan_26b; Bewicks_Swan_29b; Bewicks_Swan_33b; Bewicks_Swan_34b; Bewicks_Swan_35b; Bewicks_Swan_36b; Bewicks_Swan_40b; Bewicks_Swan_43b; Bewicks_Swan_44b; Bewicks_Swan_47b; Bewicks_Swan_49b; Bewicks_Swan_52b; Bewicks_Swan_53b; Bewicks_Swan_55b; Bewicks_Swan_56b; Bewicks_Swan_58b; Bewicks_Swan_60b; Bewicks_Swan_72b; Bewicks_Swan_74b; Bewicks_Swan_7b; Bewicks_Swan_8b; Bolboschoenus maritimus; Butomus umbellatus; Calamagrostis sp.; Carex sp.; Chaetomorpha sp.; Cocconeis placentula; Cycladophora sp.; Cygnus bewickii; Cygnus cygnus; Cygnus olor; Date/Time of event; Detritus; Diatoma elongatum; Diatoms, other; diet composition; Eleocharis palustris; Event label; fecal analysis; Fucus sp.; Gomphonema constrictum; Gulf of Finland; Hydrocharis morsus-ranae; Latitude of event; Longitude of event; Melosira varians; Microspora amoena; Mougeotia sp.; Mute_Swan_10m; Mute_Swan_11m; Mute_Swan_12m; Mute_Swan_13m; Mute_Swan_14m; Mute_Swan_1m; Mute_Swan_2m; Mute_Swan_32m; Mute_Swan_33m; Mute_Swan_34m; Mute_Swan_35m; Mute_Swan_36m; Mute_Swan_37m; Mute_Swan_38m; Mute_Swan_39m; Mute_Swan_3m; Mute_Swan_40m; Mute_Swan_41m; Mute_Swan_42m; Mute_Swan_43m; Mute_Swan_44m; Mute_Swan_45m; Mute_Swan_46m; Mute_Swan_47m; Mute_Swan_48m; Mute_Swan_49m; Mute_Swan_4m; Mute_Swan_50m; Mute_Swan_51m; Mute_Swan_56m; Mute_Swan_57m; Mute_Swan_58m; Mute_Swan_59m; Mute_Swan_5m; Mute_Swan_60m; Mute_Swan_61m; Mute_Swan_62m; Mute_Swan_63m; Mute_Swan_64m; Mute_Swan_66m; Mute_Swan_67m; Mute_Swan_68m; Mute_Swan_6m; Mute_Swan_7m; Mute_Swan_8m; Mute_Swan_9m; Myriophyllum heterophyllum; Navicula sp.; Non-metric multidimensional scaling; Nuphar lutea; Oedogonium sp.; Phalaris arundinacea; Phragmites australis; Potamogeton perfoliatus; Pylaiella littoralis; Rhizoclonium sp.; Sagittaria sagittifolia; Sample ID; Schoenoplectus tabernaemontani; Sparganium sp.; Species, common name; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Spirogyra sp.; Stigeoclonium sp.; Stuckenia pectinata; Tabellaria fenestrata; Ulothrix zonata; Ulva sp.; Whooper_Swan_11c; Whooper_Swan_13c; Whooper_Swan_14c; Whooper_Swan_15c; Whooper_Swan_16c; Whooper_Swan_17c; Whooper_Swan_18c; Whooper_Swan_19c; Whooper_Swan_1c; Whooper_Swan_21c; Whooper_Swan_22c; Whooper_Swan_25c; Whooper_Swan_26c; Whooper_Swan_27c; Whooper_Swan_28c; Whooper_Swan_29c; Whooper_Swan_2c; Whooper_Swan_31c; Whooper_Swan_32c; Whooper_Swan_33c; Whooper_Swan_34c; Whooper_Swan_35c; Whooper_Swan_38c; Whooper_Swan_39c; Whooper_Swan_40c; Whooper_Swan_41c; Whooper_Swan_42c; Whooper_Swan_43c; Whooper_Swan_44c; Whooper_Swan_45c; Whooper_Swan_46c; Whooper_Swan_48c; Whooper_Swan_49c; Whooper_Swan_50c; Whooper_Swan_51c; Whooper_Swan_52c; Whooper_Swan_53c; Whooper_Swan_54c; Whooper_Swan_55c; Whooper_Swan_56c; Whooper_Swan_57c; Whooper_Swan_59c; Whooper_Swan_60c; Whooper_Swan_61c; Whooper_Swan_67c; Whooper_Swan_71c; Zannichellia palustris |
| url | https://doi.org/10.1594/PANGAEA.963944 |