10.5061/DRYAD.JC56N4R
Tomasek, Oldrich
Charles University
Academy of Sciences of the Czech Republic
Bobek, Lukas
Masaryk University
Academy of Sciences of the Czech Republic
Kralova, Tereza
Masaryk University
Academy of Sciences of the Czech Republic
Adamkova, Marie
Masaryk University
Academy of Sciences of the Czech Republic
Albrecht, Tomas
Charles University
Academy of Sciences of the Czech Republic
Data from: Fuel for the pace of life: baseline blood glucose concentration
coevolves with life history traits in songbirds
Dryad
dataset
2018
Ficedula albicollis
Certhia familiaris
Pace-of-life syndromes
Carpodacus erythrinus
Carduelis chloris
basal metabolic rate
Phylloscopus collybita
Periparus ater
Sylvia atricapilla
Passer montanus
Parus ater
Hippolais icterina
Acrocephalus palustris
Coccothraustes coccothraustes
Prunella modularis
Carduelis flammea
Serinus serinus
Cinclus cinclus
Acrocephalus schoenobaenus
Turdus philomelos
Phylloscopus trochilus
Parus major
bird migration
sex differences in blood glucose
Emberiza schoeniclus
Troglodytes troglodytes
Passer domesticus
Delichon urbicum
Hirundo rustica
Emberiza citrinella
Turdus merula
Erithacus rubecula
Fringilla coelebs
fast-slow life history continuum
Acrocephalus scirpaceus
Phoenicurus ochruros
2018-11-10T12:08:00Z
2018-11-10T12:08:00Z
en
https://doi.org/10.1111/1365-2435.13238
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
1. It has been proposed that life histories have coevolved with a suite of
physiological and behavioural adaptations, termed pace-of-life syndromes
(POLS). Here, we hypothesise that basal concentration of blood glucose
(G0), a major source of energy circulating in vertebrate blood, may
constitute a key component of POLS. 2. To test this hypothesis, we
measured G0 in 30 passerine species and tested its covariation with body
mass and other life history traits. Importantly, body mass is a major life
history determinant and, when its effect is controlled for, there may be
no single fast-slow life history continuum in birds comprising both
fecundity and lifespan. Hence, we used individual life history traits,
rather than principal component analysis, to characterise life history
variation in our analysis. 3. In support of G0 life history coevolution,
we found G0 to be negatively correlated with body mass and positively with
reproductive investment in a single clutch across 30 passerine species.
Higher G0 in females suggests that the energy demands of clutch production
and incubation may be an important selection force driving coevolution of
G0 with reproductive output. 4. In contrast, G0 was not associated with
maximum lifespan, suggesting that high G0 may not constrain evolution of
longevity. This implies that long-lived species can evolve physiological
adaptations preventing harmful effects of high glucose concentrations,
known to cause pathologies and accelerate ageing. 5. In addition, G0, but
not basal metabolic rate (BMR), was negatively correlated with migration
distance, attesting to evolutionary changes in energy metabolism in long
distance migrants. Our results further suggest that the links between body
mass, reproduction and G0 are not mediated by BMR and that G0 is
associated with fast-slow life history variation more closely than
available BMR data. 6. A species life history is determined to a great
extent by body mass. When this effect is controlled for, only those traits
related to reproduction (but not lifespan) constitute the principal axis
of life history variation in birds. Hence, the coevolution of G0 with body
mass and reproductive output evidenced in our study indicates that G0
constitutes an important physiological component of POLS.
G0_POLS_indDataBasal blood glucose concentration and body mass data from
wild (free-living) passerine birds (songbirds) collected in the field.
Life-history traits related to reproduction rate/fecundity (clutch size,
egg mass, clutch frequency), migration distance, diet and basal metabolic
rate data collected from the literature. Maximum lifespan data taken from
EURING databank.
Czech Republic
Czechia
Central Europe