10.5061/DRYAD.K3J9KD5BQ
Poirotte, Clemence
0000-0001-5545-2985
German Primate Center
Charpentier, Marie
Institut des Sciences de l'Evolution de Montpellier
Mother-to-daughter transmission of hygiene in mandrills
Dryad
dataset
2022
Parasite avoidance strategy
Hygiene
Social distancing
primate
contagious disease
social inheritance
FOS: Biological sciences
Deutsche Forschungsgemeinschaft
https://ror.org/018mejw64
KA 1082-20- 1
2022-11-29T00:00:00Z
2022-11-29T00:00:00Z
en
73722 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Social animals are particularly exposed to infectious diseases.
Pathogen-driven selection pressure has thus favoured the evolution of
behavioural adaptations to decrease transmission risk, such as “social
distancing”. Yet, such strategy might deprive individuals from valuable
social interactions, generating a cost-benefit trade-off between pathogen
avoidance and social opportunities. Recent studies revealed that hosts
differ in the expression of these behavioural defences but the
determinants driving such inter-individual variation remain poorly
understood. Using 5 years of detailed behavioural and parasite data
obtained on a large natural population of non-human primates, we show
that, during grooming interactions, some female mandrills (Mandrillus
sphinx) consistently avoid their conspecifics’ peri-anal region, where
oro-faecally transmitted gastro-intestinal parasites accumulate, while
others do not. This hygienic trait is further highly repeatable across the
years and hygienic females are less parasitized on average than
non-hygienic females. While age, dominance rank and sociality level do not
influence hygienic tendencies, close maternal kin exhibit similar levels
of hygiene suggesting social inheritance from mothers to daughters. Our
study thus emphasizes that social inheritance of hygienic tendencies may
structure behavioural resistance to pathogens in host populations, with
unforeseen consequences on the dynamics of infectious diseases.
The table entitled "Table_model1" indicates for each grooming
event collected during 6 study years (n = 3429): the season
("LD" : Long-dry, "LR": Long-rainy, "I":
intermediate), the identity of the female groomer, the average population
protozoan richness (during a period ranging from two weeks before to two
weeks after that grooming event), and whether or not this grooming event
included the peri-anal region ("PAR": 0/1) of the social
partner. The table entitled "Table_model2" gives protozoan
richness of each female, each study month (n = 357 female.months), as well
as female age, dominance rank ("HR": high-rank, "MR":
medium-rank, "LR": low-rank) and proportion of risky grooming
events (i.e., including groupmates' peri-anal region) for each female
each study year ("female_annual_PRG"). "Population monthly
protozoan richness" corresponds to the average protozoan richness in
the population the corresponding month. The table entitled
"Table_model3" gives hygienic index for each female each study
year ("female_annual_HI") as well as female age, dominance rank,
and sociality level.