Highly virulent avian brood-parasitic species show elevated embryonic metabolic rates at specific incubation stages compared to less virulent and non-parasitic species

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F24%3A00599123" target="_blank" >RIV/68081766:_____/24:00599123 - isvavai.cz</a>

Result on the web

<a href="https://royalsocietypublishing.org/doi/10.1098/rsbl.2024.0411" target="_blank" >https://royalsocietypublishing.org/doi/10.1098/rsbl.2024.0411</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1098/rsbl.2024.0411" target="_blank" >10.1098/rsbl.2024.0411</a>

Result language

angličtina

Original language name

Highly virulent avian brood-parasitic species show elevated embryonic metabolic rates at specific incubation stages compared to less virulent and non-parasitic species

Original language description

As the avian embryo grows and develops within the egg, its metabolic rate gradually increases. Obligate avian brood-parasitic birds lay their eggs in the nests of other species to avoid the costs of parental care, and all but one of these brood-parasitic species are altricial at hatching. Yet the chicks of some altricial brood-parasitic species perform the physically demanding task of evicting, stabbing or otherwise killing host progeny within days of hatching. This implies a need for high metabolic rates in the embryo, just as precocial species require. Using flow-through respirometry in situ, we investigated embryonic metabolic rates in diverse avian brood parasite lineages which either kill host offspring (high virulence) or share the nest with host young (low virulence). High-virulence brood parasite embryos exhibited higher overall metabolic rates than both non-parasitic (parental) species and low-virulence parasites. This was driven by significantly elevated metabolic rates around the halfway point of incubation. Additionally, a fine-scale analysis of the embryos of a host-parasitic pair showed faster increases in metabolic rates in the parasite. Together these results suggest that the metabolic patterns of the embryos of high-virulence parasites facilitate their early-life demands.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project

<a href="/en/project/GA17-12262S" target="_blank" >GA17-12262S: Reproductive strategies of an obligate brood parasite: host selection, offspring sex allocation and individual success</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Biology Letters

ISSN

1744-9561

e-ISSN

1744-957X

Volume of the periodical

20

Issue of the periodical within the volume

9

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

20240411

UT code for WoS article

001320236900002

EID of the result in the Scopus database

2-s2.0-85204941834