Carbon and nitrogen stable isotope signatures in toenails of dunlins sampled at the Tagus estuary during spring migration.

The wintering (non-breeding) origin of dunlins (Mauritania, Tagus estuary and unknown) was assessed following Catry et al. [ 43 , 44 ]. (DOCX)

Bibliographic Details
Main Authors:	Teresa Catry (157961), José Pedro Granadeiro (7359062), Jorge Sánchez Gutiérrez (11999299), Edna Correia (6368099)
Format:	Other Non-Article Part of Journal/Newspaper
Language:	unknown
Published:	2022
Subjects:	Evolutionary Biology Ecology Science Policy Environmental Sciences not elsewhere classified Biological Sciences not elsewhere classified study adds substantially similar refuelling rates replenish energy stores physiological status suggests performing fewer stops moderate rates along larger fuel loads large estuarine wetland experience stronger pressures east atlantic flyway compare refuelling rates calidris alpina </ skipping migratory strategy single migratory strategy quality stopover site physiological state within key stopover site birds fly short particularly concerning decisions individuals stop primarily high fuel loads div >< p early birds showed fuelling stopping functions early autumn migrants within species stopover use stopover ecology migratory shorebirds migratory periods understanding non tagus estuary stationary periods prolonged fuelling previous knowledge plasma triglycerides late migrants intermediate fuelling hydroxybutyrate concentrations highest triglycerides higher haemoglobin hematocrit levels haemoglobin levels haematological profiles haematological parameters carrying capacity blood oxygen autumn migrations > using Calidris alpina
Online Access:	https://doi.org/10.1371/journal.pone.0263031.s005

Description
Summary:	The wintering (non-breeding) origin of dunlins (Mauritania, Tagus estuary and unknown) was assessed following Catry et al. [ 43 , 44 ]. (DOCX)