FN Archimer Export Format
PT J
TI Cascading Effects of Conspecific Aggression on Oxidative Status and Telomere Length in Zebra Finches
BT 
AF Quque, Martin
   Ferreira, Charly
   Sosa, Sebastian
   Schull, Quentin
   Zahn, Sandrine
   Criscuolo, François
   Bleu, Josefa
   Viblanc, Vincent A.
AS 1:1;2:1,2;3:1;4:3;5:1;6:1;7:1;8:1;
FF 1:;2:;3:;4:PDG-RBE-MARBEC-LHM;5:;6:;7:;8:;
C1 Université de Strasbourg, CNRS, IPHC UMR 7178, 23 rue du Loess, 67037 Strasbourg Cedex 2, France
   Université Claude Bernard Lyon 1, 43 boulevard du 11 Novembre 1918, 69100 Villeurbanne, France
   MARBEC, Université Montpellier, IFREMER, IRD, CNRS, Avenue Jean Monnet CS 31071, 34203 Sète Cedex, France
C2 UNIV STRASBOURG, FRANCE
   UNIV LYON, FRANCE
   IFREMER, FRANCE
SI SETE
SE PDG-RBE-MARBEC-LHM
UM MARBEC
IN WOS Ifremer UMR
   copubli-france
   copubli-univ-france
IF 1.6
TC 2
UR https://archimer.ifremer.fr/doc/00849/96115/104235.pdf
LA English
DT Article
DE ;social environment;competition;behavioral ecology;oxidative stress;path analysis;Taeniopygia guttata
AB Living in social groups may exacerbate interindividual competition for territory, food, and mates, leading to stress and possible health consequences. Unfavorable social contexts have been shown to elevate glucocorticoid levels (often used as biomarkers of individual stress), but the downstream consequences of socially stressful environments are rarely explored. Our study experimentally tests the mechanistic links between social aggression, oxidative stress, and somatic maintenance in captive zebra finches (Taeniopygia guttata). Over 64 d, we measured the effects of aggression (received or emitted) on the individual oxidative status, body condition, and changes in relative telomere length (rTL) of birds living in high- and low-social-density conditions. Using path analyses, we found that birds living at high social density increased their aggressive behavior. Birds receiving the highest number of aggressions exhibited the strongest activation of antioxidant defenses and highest plasmatic levels of reactive oxygen metabolites. In turn, this prevented birds from maintaining or restoring telomere length between the beginning and the end of the experiment. Received aggression also had a direct negative effect on changes in rTL, unrelated to oxidative stress. In contrast, emitted aggression had no significant effect on individual oxidative stress or changes in rTL. Body condition did not appear to affect the physiological response to aggression or oxidative stress. At low density, we found trends that were similar to those at high density but nonsignificant. Our study sheds light on the causal chain linking the social environment and aggressive behavior to individual oxidative stress and telomere length. The long-term consequences of socially induced stress on fitness remain to be characterized. 
PY 2022
PD SEP
SO Physiological And Biochemical Zoology
SN 1522-2152
PU University of Chicago Press
VL 95
IS 5
UT 001044880300002
BP 416
EP 429
DI 10.1086/721252
ID 96115
ER

EF