DATAFILE: ReturningBirds.txt	
ARTICLE:  Natal habitat imprinting counteracts the diversifying effects of phenotype-dependent dispersal in a spatially structured population
JOURNAL:  BMC Evolutionary Biology (2016)
AUTHORS:  Carlos Camacho, David Canal, Jaime Potti


VARIABLE		DESCRIPTION

COHORT			Year of birth
IDENTITY		Bird identification number, equivalent to ring number
SEX			Bird sex, coded as M = male, and F = female
LIFE STAGE		Life stage of cross-fostering, coded as E = egg, and N = nestling
TREATMENT		Cross-fostering WITHIN or BETWEEN habitats
FOSTER NEST		Identity of the foster nest
SOURCE NEST		Identity of the source nest
SOURCE HABITAT		Habitat patch where the bird comes from (class variable, two states)
FOSTER HABITAT		Habitat patch in which the bird is raised (class variable, two states)
BREEDING HABITAT	Habitat to which the bird returns to breed as adult (class variable, two states)
RETURN YEAR		Year in which the bird returns to the study area
AGE			Bird age at first reproduction, coded as 1 = born the previous year; 2 = born two years ago, etc.
TARSUS LENGTH		Tarsus length (mm), as a measure of skeletal body size
BREEDING DATE 		Laying date at first reproduction, standardized as the number of days over or under the median annual date of laying in each habitat
MOVEMENT		Direction of natal dispersal (class variable, four modalities)
EMPTY NB PINE		Nest-site availability in the pine forest, measured as the annual number of nest-boxes not occupied by other hole-nesting species
EMPTY NB OAK		Nest-site availability in the oak forest, measured as the annual number of nest-boxes not occupied by other hole-nesting species
DIST FOREST EDGE	Minimum linear distance (m) between the rearing nest and the alternative forest patch


Address questions to Carlos Camacho, e-mail: ccamacho@ebd.csic.es