Inter-litter competition and communal nursing among Norway rats: advantages of birth synchrony

@article{Mennella1990InterlitterCA,
  title={Inter-litter competition and communal nursing among Norway rats: advantages of birth synchrony},
  author={Julie A Mennella and Mark S Blumberg and M. K. Mcclintock and Howard Moltz},
  journal={Behavioral Ecology and Sociobiology},
  year={1990},
  volume={27},
  pages={183-190}
}
The effect of inter-litter competition on pup survival was investigated in pairs of female rats (Rattus norvegicus) living and breeding in the same environment. If a female gave birth when a 0- to 14-day-old litter was already present in the environment, her pups had a very high chance of surviving, similar to the situation in which no other litter was present. Moreover, the mother was likely to nurse communally with the mother of the 0- to 14-day-old litter. This communal nursing benefitted… CONTINUE READING

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