Young male blackcaps with blood parasite coinfections cope with oxidative stress favouring anthocyanin-rich food during migratory fattening

Parasites may alter host physiology, which may promote behavioural adaptations to counteract their effect. Adaptive feeding may help individuals to cope with infection, especially during physiologically demanding life stages. For instance, migrating birds need fuel for long-distance flights and to repair oxidative damage caused by intense aerobic exercise, and parasites may influence how individuals balance these needs. Infected birds may face increased oxidative challenges, which could induce them to favour antioxidant defences over other needs, such as fattening. We tested whether migrating birds can adaptively choose food according to their needs, favouring dietary antioxidants to cope with oxidative stress caused by haemosporidian blood parasites during migration. During autumn migration, we mist-netted young male Eurasian blackcaps (Sylvia atricapilla) stopping over in central Spain. We placed the birds in cages where they were offered fat and anthocyanin-enriched food alternatives..., , , # Young male blackcaps with blood parasite coinfections cope with oxidative stress favouring anthocyanin-rich food during migratory fattening

Authors: Jiménez-Gallardo, Lucía; López-Arrabé, Jimena; Pérez-Tris, Javier; Remacha, Carolina

Journal: Journal of Avian Biology

Paper DOI:10.1111/jav.03214

## Description of R SCRIPT files

(A) DATABASE PREPARATION:

\- Filename = \"MS_SYATDIET_db.qmd\". PREVIOUS to perform any ANALYSES this script must be run to generate adequately transformed behavioural, physiological and biological data. This script generates a ready for use database for analyses save as \"SYATDIET_db_test.csv\".

(B) TEST ANALYSES:

\- Filename = \"MS_SYATDIET_test.qmd\". Script with the code to reproduce all the analyses and results of the manuscript. It can be run with the database file previously generated \"SYATDIET_db_test.csv\".

## Description of variables in the DATA files: \"MS\_SYATDIET\_db.csv\" and \"SYATDIET\_db\_test.csv\"

\* order = correlative order

\* LA...