New paper: Can blood parasites limit birds’ ability to cope with life at high elevation? Haemoglobin increased with elevation in uninfected but not infected birds, implying that infection constrains the ability to cope with lower oxygen availability.
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#ornithology #birds
![Fig. 2 from the article: Relationship between (A) the change in mean body mass at fledging, (C) the change in mean tarsus length at fledging, and the change in marine diet within breeding pairs between the years of highest and lowest marine diet proportion. [(B) not shown]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:qo6qza5jvlmx3a5p5dplxwhs/bafkreicddg2dau2omvdtzhrjunvcfrv5nincuiflkbxsmo3fc7qjxrdvui)
