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Authors Sanchez, MI; Green, AJ; Castellanos, EM
Author Full Name Sanchez, MI; Green, AJ; Castellanos, EM
Title Seasonal variation in the diet of Redshank Tringa totanus in the Odiel Marshes, southwest Spain: a comparison of faecal and pellet analysis
Source BIRD STUDY
Language English
Document Type Article
Keywords Plus BERG RIVER ESTUARY; SHOREBIRDS; ECOLOGY; FECES; WATERBIRDS; CHARADRII; HABITATS; AFRICA; WADERS
Abstract Capsule Redshank diet from southern Europe during migration shows spatial and seasonal variations. Aims To assess seasonal variation in Redshank diet at a major passage site, and to compare data derived from analysing pellets or faeces. Methods At the Odiel Marshes in 2001, pellets from spring migration (39), autumn migration (121) and midwinter (15) were analysed, together with faecal samples from autumn (84). Results The abundance of different invertebrate groups in pellets varied between seasons. In spring, Chironomus salinarius pupae and larvae dominated by volume, followed by Ephydridae larvae and the beetle Paracymus aenus. Polychaetes and molluscs dominated in autumn, and isopods in midwinter. In autumn, chironomid larvae, Mesembryanthemum nodiflorum seeds and Artemia cysts were relatively more abundant in faeces, whereas polychaetes, isopods, molluscs and cestode cysticercoids were more abundant in pellets. Harder and/or larger items were thus relatively more abundant in pellets than faeces. Pellet analysis gave more emphasis to mudflat prey, and faeces to saltpan prey. Conclusion Pellet and faecal analysis give different results for wader diet, and it is useful to combine the two methods. However, they show significant correlations both in diet range and rank abundance of prey items. Redshank diet shows much seasonal and spatial variation in southern Europe.
Author Address Dept Biol Aplicada, Estac Biol Donona, Seville 41013, Spain; Univ Huelva, Dept Biol Ambiental & Salud Publ, Fac Ciencias Expt, Huelva 21071, Spain
Reprint Address Sanchez, MI (reprint author), Dept Biol Aplicada, Estac Biol Donona, Avenida Maria Luisa S-N,Pabellon Peru, Seville 41013, Spain.
E-mail Address marta.sanchez@ebd.csic.es
ResearcherID Number Green, Andy J/A-5189-2008; Castellanos, Eloy/I-6599-2019; Sanchez, Marta I/E-9723-2010; Castellanos Verdugo, Eloy Manuel/S-1820-2016
ORCID Number Green, Andy J/0000-0002-1268-4951; Sanchez, Marta I/0000-0002-8349-5410; Castellanos Verdugo, Eloy Manuel/0000-0001-6182-9689; Sanchez, Marta I./0000-0003-1461-4786
Times Cited 28
Total Times Cited Count (WoS, BCI, and CSCD) 28
Publisher BRITISH TRUST ORNITHOLOGY
Publisher City THETFORD NORFOLK
Publisher Address NUNNERY, NUNNERY PLACE, THETFORD NORFOLK IP24 2PU, ENGLAND
ISSN 0006-3657
29-Character Source Abbreviation BIRD STUDY
ISO Source Abbreviation Bird Stud.
Publication Date JUL
Year Published 2005
Volume 52
Part Number 2
Beginning Page 210
Ending Page 216
Digital Object Identifier (DOI) 10.1080/00063650509461393
Page Count 7
Web of Science Category Ornithology
Subject Category Zoology
Document Delivery Number 941FO
Unique Article Identifier WOS:000230200900015
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