ArticleScientific reports2019
Haematological traits co-vary with migratory status, altitude and energy expenditure: a phylogenetic, comparative analysis.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Adjusting to urban stress: How Eurasian tree sparrows modulate multiple physiological and nutritional markers across sexes.Current zoology · 2025Article
- Birds With Distinct Ecological Traits Show Varied Haemoglobin Adaptations Along Elevation Gradients.Ecology and evolution · 2025Article
- Mitochondrial remodelling supports migration in white-crowned sparrows (Proceedings. Biological sciences · 2024Article
- Flexibility underlies differences in mitochondrial respiratory performance between migratory and non-migratory White-crowned Sparrows (Zonotrichia leucophrys).Scientific reports · 2024Article
- Stopover habitat selection drives variation in the gut microbiome composition and pathogen acquisition by migrating shorebirds.FEMS microbiology ecology · 2024Article
- Sexual selection for extreme physical performance in a polygynous bird is associated with exceptional sex differences in oxygen carrying capacity.Biology letters · 2023Article
- Seasonal Changes in Hematological Parameters in House Sparrows of Subtropical Pakistan.Integrative organismal biology (Oxford, England) · 2023Article
- Riding out the storm: depleted fat stores and elevated hematocrit in a small bodied endotherm exposed to severe weather.Conservation physiology · 2023Article
- Energetic Lifestyle Drives Size and Shape of Avian Erythrocytes.Integrative and comparative biology · 2022Article
- Doping in Racing Pigeons (Veterinary sciences · 2022Review
- Hematocrit, age, and survival in a wild vertebrate population.Ecology and evolution · 2021Article
- Sex differences in testosterone and hematocrit levels reflect mating system differences of two Arctic-breeding shorebird species.Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
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3 authors.
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Abstract
Aerobic capacity is assumed to be a main predictor of workload ability and haematocrit (Hct) and haemoglobin (Hb) have been suggested as key determinants of aerobic performance. Intraspecific studies have reported increases in Hct and Hb in response to increased workload. Furthermore, Hct and Hb vary markedly among individuals and throughout the annual cycle in free-living birds and it has been suggested that this variation reflects adaptive modulation of these traits to meet seasonal changes in energy demands. We used a comparative dataset of haematological traits, measures of metabolic rate (57 species), and life-history traits (160 species) to test several hypotheses for adaptive variation in haematology in relation to migration and altitude. We then extended these general ideas to test relationships between Hct and basal metabolic rate, daily energy expenditure and activity energy expenditure, using the 57 species that we have metabolic rate information for. We found that at the interspecific level, full migrants have higher Hct and Hb than partial migrants and non-migrants, and that altitude is positively correlated with Hb but not Hct. Hct is positively associated with activity energy expenditure (energy spent specifically on costly activities), suggesting that haematological traits could be adaptively modulated based on life-history traits and that Hct is a potential physiological mediator of energetic constraint.
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