Data from: Hematological parameters vary with life history stage in the pale-breasted thrush (Turdus leucomelas)
Data files
Mar 14, 2024 version files 10.26 KB
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Provinciato_et_al_LHS.csv
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README.md
Abstract
The avian life cycle is composed by a progressive sequence of life history stages (LHS). Changes in energy expenditure and exposure to stressors at different LHS require corresponding changes in behavior, physiology, and morphology. Variation in hematological parameters, such hematocrit (Hct), hemoglobin (Hb), and heterophil to lymphocyte ratio (H/L ratio), can have permissive, stimulatory, and preparative actions to help maintain homeostasis through different LHS. Few studies have examined differences in these parameters among different LHS in free-living birds, with most of them restricted to temperate zones. We collected blood samples and measured hematological parameters every week for over a year from a population of a common resident bird species in southeastern Brazil, the pale–breasted thrush (Turdus leucomelas). Hematocrit and hemoglobin concentration were highest during the onset of the reproduction and lowest during molt. Furthermore, H/L ratios were higher at the end of the reproduction, indicating that the breeding season could be the most stressful period of the year for this population of thrushes. There was no difference between sexes for any hematological parameter at any LHS. These results show that there is a permissive physiological effect for Hct and Hb to facilitate LHS transitions and that reproduction could be the most stressful event for this species. Lastly, these results mirror those from temperate species despite distinct environmental differences between these regions.
README: Hematological parameters vary with life history stage in the pale-breasted thrush (Turdus leucomelas)
https://doi.org/10.5061/dryad.5qfttdzdq
This dataset was collected in the Universidade Estadual Paulista (UNESP) - Rio Claro in Sao Paulo, Brazil (2017)
ID: individual metallic band id given to each individual
day: day of the year when capture occurred
hour and hour.ori: hour.ori indicates the real hour each individual got captured. For hour we considered time, in minutes, after 6:00am.
Temperature: mean temperature, in celsius, at the time of capture.
sex: sex of each captured individual
LHS: life history stage of each individual at the time they got captured
hematocrit: hematocrit value (%) for each individual
hemoglobin: hemoglobin level (g/dL) for each individual
weight: body mass, in grams, for each individual
H_L and H_L.trans: H/L ratio (heterophil to lymphocyte ratio) and H/L ratio values after boxcox transformation, respectively. We did not take this measurement for all individuals. Thus, missing values are denoted by NA.
wing, tail, culmen and tarsus: morphological measurements, in mm, for each individual
SMI_Cul: body condition index for each individual. We utilized the scaled-mass index (Peig & Green, 2009) and considered the body mass and tarsus values.