socionomic
/ˌsəʊʃ(ɪ)əʊˈnɒmɪk/ /ˌsəʊsɪəʊˈnɒmɪk/adjective
Relating to environmental or other non-social conditions affecting the formation and development of social groups. Now chiefly in socionomic sex ratio noun Zoology. (especially in non-human primates) the ratio of females to males in relatively stable social groups.
Origin
Early 20th century; earliest use found in James M. Baldwin (1861–1934). From socio- + nomic.