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001-es BibID:	BIBFORM122343
Első szerző:	Szarka Endre Z.
Cím:	Trophic guilds differ in blood glucose concentrations: a phylogenetic comparative analysis in birds / Szarka Endre, Lendvai Ádám Zoltán
Dátum:	2024
ISSN:	0962-8452
Megjegyzések:	Glucose is a central metabolic compound used as an energy source across all animal taxa. There is high interspecific variation in glucose concentration between taxa, the origin and the consequence of which remain largely unknown. Nutrition may affect glucose concentrations because carbohydrate content of different food sources may determine the importance of metabolic pathways in the organism. Birds sustain high glucose concentrations that may entail the risks of oxidative damage. We collected glucose concentration and life history data from 202 bird species from 171 scientific publications; classified them into seven trophic guilds and analysed the data with a phylogenetically controlled model. We show that glucose concentration is negatively associated with body weight and is significantly associated with trophic guilds with a moderate phylogenetic signal. After controlling for allometry, glucose concentrations were highest in carnivorous birds, which rely on high rates of gluconeogenesis to maintain their glycemia and lowest in frugivorous/nectarivorous species, which intake carbohydrates directly. However, trophic guilds with different glucose concentrations did not differ in lifespan. These results link nutritional ecology to physiology and suggest that at the macroevolutionary scale, species requiring constantly elevated glucose concentrations may have additional adaptations to avoid the risks associated with high glycemia.
Tárgyszavak:	Természettudományok Biológiai tudományok esettanulmány folyóiratcikk Blood sugar Nutrition Avian physiology Gluconeogenesis Lifespan
Megjelenés:	Proceedings Of The Royal Society B-Biological Sciences. - "Accepted by Publisher" : - (2024), p. -. -
További szerzők:	Lendvai Ádám Zoltán (1977-) (biológus)
Pályázati támogatás:	K139021 OTKA
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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