@misc{10481/93444,
year = {2024},
month = {5},
url = {https://hdl.handle.net/10481/93444},
abstract = {Background Some parasites use olfactory cues to detect their hosts and, since bacterial symbionts are partially
responsible for animal odours, they could influence host parasitism. By autoclaving nest materials of hoopoe (Upupa
epops) nests before reproduction started, we explored the hypothetical links between host-associated bacteria, volatiles
and parasitism. During the nestling stage, we (i) estimated the level of ectoparasitism by chewing lice (Suborder
Mallophaga) in adult hoopoe females and by Carnus haemapterus flies in nestlings, and (ii) characterized microbial
communities and volatile profiles of nest environments (nest material and nest cavity, respectively) and uropygial
secretions.
Results Experimental nests had less diverse bacterial communities and more diverse volatile profiles than control
nests, while occupants experienced lower intensity of parasitism in experimental than in control nests. The experiment
also affected beta diversity of the microbial communities of nest material and of the volatiles of the nestling
uropygial secretions. Moreover, microbial communities of uropygial secretions and of nest materials covaried
with their volatile profiles, while the volatile profile of the bird secretions explained nest volatile profile. Finally,
a subset of the volatiles and bacteria detected in the nest material and uropygial secretions were associated
with the ectoparasitism intensity of both adult females and nestlings, and with fledging success.
Conclusions These results show that a component of animal odours is linked with the microbial communities
of the host and its reproductive environment, and emphasize that the associations between bacteria, ectoparasitism
and reproductive success are partially mediated by volatiles of bacterial origin. Future work should focus on mechanisms
underlying the detected patterns.},
organization = {Open Access funding provided thanks to the CRUE-CSIC agreement with
Springer Nature},
organization = {Projects CGL2017-
83103-P, PID2020-117429 GB-C21 and PID2020-117429 GB-C22, funded by the
Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación},
organization = {“Fondo Europeo de Desarrollo
Regional, a way of making Europe”},
organization = {JMPS enjoined a Ramon
y Cajal scholarship (RYC2022-036147-I) funded by Ministerio de Ciencia, Innovación
y Universidades (MCIN/AEI/https://doi.org/10.13039/501100011033)},
publisher = {BMC},
keywords = {Animal odour},
keywords = {Avian microbiota},
keywords = {Carnus hemapterus},
title = {Volatiles of symbiotic bacterial origin explain ectoparasitism and fledging success of hoopoes},
doi = {10.1186/s42523-024-00312-9},
author = {Mazorra Alonso, Mónica and Peralta-Sánchez, Juan Manuel and Martín-Vivaldi Martínez, Manuel Lorenzo and Martínez Bueno, Manuel and Nuñez Gómez, Rafael and Soler, Juan José},
}