Citation:

PANGAEA.963944 (dataset in review)

Name: 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
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Cygnus bewickii; Cygnus cygnus; Cygnus olor; diet composition; fecal analysis

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Abstract:

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.

Keyword(s):

Cygnus bewickii; Cygnus cygnus; Cygnus olor; diet composition; fecal analysis

Supplement to:

Kouzov, Sergei; Koptseva, Elena; Gubelit, Yulia; Kravchuk, Anna (in review): Spring diet of three palaearctic species of swans. Ecological and phylogenetic aspects. BMC Ecology and Evolution

Coverage:

Median Latitude: 59.772786 * Median Longitude: 28.343741 * South-bound Latitude: 59.650107 * West-bound Longitude: 27.992489 * North-bound Latitude: 59.997672 * East-bound Longitude: 30.094696

Date/Time Start: 2018-02-21T00:00:00 * Date/Time End: 2023-04-22T00:00:00

Event(s):

Bewicks_Swan_7b * Latitude: 59.687890 * Longitude: 28.222179 * Date/Time: 2019-03-22T00:00:00 * Location: Gulf of Finland

Bewicks_Swan_8b * Latitude: 59.692249 * Longitude: 28.219692 * Date/Time: 2019-03-22T00:00:00 * Location: Gulf of Finland

Bewicks_Swan_10b * Latitude: 59.789383 * Longitude: 28.104146 * Date/Time: 2019-04-02T00:00:00 * Location: Gulf of Finland

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Kouzov, Sergei
2	Latitude of event	Latitude		Kouzov, Sergei
3	Longitude of event	Longitude		Kouzov, Sergei
4	Date/Time of event	Date/Time		Kouzov, Sergei
5	Sample ID	Sample ID		Kouzov, Sergei
6	Species, common name	Species common		Kouzov, Sergei
7	Species, unique identification	Species UID		Kouzov, Sergei
8	Species, unique identification (Semantic URI)	Species UID (Semantic URI)		Kouzov, Sergei
9	Species, unique identification (URI)	Species UID (URI)		Kouzov, Sergei
10	Chaetomorpha sp.	Chaetomorpha sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Chlorophyta
11	Cycladophora sp.	Cycladophora sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Chlorophyta
12	Microspora amoena	M. amoena	%	Kouzov, Sergei	Non-metric multidimensional scaling	Chlorophyta
13	Mougeotia sp.	Mougeotia sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Chlorophyta
14	Oedogonium sp.	Oedogonium sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Chlorophyta
15	Rhizoclonium sp.	Rhizoclonium sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Chlorophyta
16	Spirogyra sp.	Spirogyra sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Chlorophyta
17	Stigeoclonium sp.	Stigeoclonium sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Chlorophyta
18	Ulothrix zonata	U. zonata	%	Kouzov, Sergei	Non-metric multidimensional scaling	Chlorophyta
19	Ulva sp.	Ulva sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Chlorophyta
20	Pylaiella littoralis	P. littoralis	%	Kouzov, Sergei	Non-metric multidimensional scaling	Phaeophyta
21	Fucus sp.	Fucus sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Phaeophyta
22	Pylaiella littoralis	P. littoralis	%	Kouzov, Sergei	Non-metric multidimensional scaling	Rhodophyta
23	Pylaiella littoralis	P. littoralis	%	Kouzov, Sergei	Non-metric multidimensional scaling	Xanthophyta
24	Melosira varians	M. varians	%	Kouzov, Sergei	Non-metric multidimensional scaling	Bacillariophyta
25	Tabellaria fenestrata	T. fenestrata	%	Kouzov, Sergei	Non-metric multidimensional scaling	Bacillariophyta
26	Diatoma elongatum	D. elongatum	%	Kouzov, Sergei	Non-metric multidimensional scaling	Bacillariophyta
27	Navicula sp.	Navicula sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Bacillariophyta
28	Gomphonema constrictum	G. constrictum	%	Kouzov, Sergei	Non-metric multidimensional scaling	Bacillariophyta
29	Cocconeis placentula	C. placentula	%	Kouzov, Sergei	Non-metric multidimensional scaling	Bacillariophyta
30	Diatoms, other	Diatom oth	%	Kouzov, Sergei	Non-metric multidimensional scaling	Bacillariophyta
31	Phragmites australis	P. australis	%	Kouzov, Sergei	Non-metric multidimensional scaling	Roots, rhizomes and tubers of vascular submerged and coastal plants
32	Bolboschoenus maritimus	B. maritimus	%	Kouzov, Sergei	Non-metric multidimensional scaling	Roots, rhizomes and tubers of vascular submerged and coastal plants
33	Schoenoplectus tabernaemontani	S. tabernaemontani	%	Kouzov, Sergei	Non-metric multidimensional scaling	Roots, rhizomes and tubers of vascular submerged and coastal plants
34	Agrostis sp.	Agrostis sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Roots, rhizomes and tubers of vascular submerged and coastal plants
35	Calamagrostis sp.	Calamagrostis sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Roots, rhizomes and tubers of vascular submerged and coastal plants
36	Phalaris arundinacea	P. arundinacea	%	Kouzov, Sergei	Non-metric multidimensional scaling	Roots, rhizomes and tubers of vascular submerged and coastal plants
37	Carex sp.	Carex sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Roots, rhizomes and tubers of vascular submerged and coastal plants
38	Eleocharis palustris	E. palustris	%	Kouzov, Sergei	Non-metric multidimensional scaling	Roots, rhizomes and tubers of vascular submerged and coastal plants
39	Stuckenia pectinata	S. pectinata	%	Kouzov, Sergei	Non-metric multidimensional scaling	Roots, rhizomes and tubers of vascular submerged and coastal plants
40	Phragmites australis	P. australis	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
41	Butomus umbellatus	B. umbellatus	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
42	Sparganium sp.	Sparganium sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
43	Agrostis sp.	Agrostis sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
44	Phalaris arundinacea	P. arundinacea	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
45	Carex sp.	Carex sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
46	Alisma plantago-aquatica	A. plantago-aquatica	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
47	Eleocharis palustris	E. palustris	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
48	Butomus umbellatus	B. umbellatus	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
49	Sparganium sp.	Sparganium sp.	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
50	Sagittaria sagittifolia	Sag.t	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
51	Nuphar lutea	N. lutea	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
52	Hydrocharis morsus-ranae	Hyd	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
53	Zannichellia palustris	Z. palustris	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
54	Myriophyllum heterophyllum	M. heterophyllum	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
55	Stuckenia pectinata	S. pectinata	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
56	Potamogeton perfoliatus	P. perfoliatus	%	Kouzov, Sergei	Non-metric multidimensional scaling	Vegetative parts of vascular submerged and coastal plants
57	Detritus	Detritus	%	Kouzov, Sergei	Non-metric multidimensional scaling

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

6222 data points

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