title: Determinants of marital behaviour in five Apennine communities of Central Italy inferred by surname analysis, repeated pairs and kinship estimates.
abstract: The work makes use of surname analysis, repeated pairs and kinship estimates in 11,009 marriage records celebrated in five communities of the Italian Central Apennine (Celano, Lecce dei Marsi, Ortucchio, Roio, Villavallelonga) from 1802 to 1965 with the objective to deepen knowledge of the relative influence of several determinants on their marital behaviour. These towns are part of the same geographic and economic environment: the slopes of the ancient Fucino Lake. This work further elaborates the results from previous studies on the bio-demographic model of the region. The data were analyzed according to three periods of approximately 50 years. Results show the highest inbreeding coefficients in the pastoral towns of Roio and Villavallelonga. Repeated pair analysis highlights a certain degree of population subdivision which declined in time in Celano, Lecce dei Marsi and Ortucchio. The highest and increasing values of RP-RPr in time in Roio suggest a general reduction in genetic heterogeneity. This is possibly due to the celebration of marriages among families selected on the economic basis of pastoralism, as this town historically has had a leading tradition of sheep-farming. Villavallelonga, excluding isonymous marriages, shows an increase in repeated pair unions in time, thus revealing a substructure with marriages among preferred lineages. This is in line with previous results on consanguineous marriages which indicated the tendency of avoiding unions between close relatives in this small geographic isolate. This study demonstrates the influence of geographical (altitude) and social factors (pastoralism) on the marital structures of the investigated populations.
authors.affiliation: Dipartimento di Biologia e Biotecnologie "Charles Darwin", Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy; Istituto Italiano di Antropologia, Piazzale Aldo Moro 5, 00185 Rome, Italy. Electronic address: marco.capocasa@uniroma1.it.
authors.forename: M
authors.initials: M
authors.lastname: Capocasa
authors.affiliation: Dipartimento di Biologia, Università di Pisa, Via Luca Ghini 13, 56126 Pisa, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Taglioli
authors.affiliation: Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy; Istituto Italiano di Antropologia, Piazzale Aldo Moro 5, 00185 Rome, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Anagnostou
authors.affiliation: Dipartimento di Biologia, Università di Pisa, Via Luca Ghini 13, 56126 Pisa, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Paoli
authors.affiliation: Dipartimento di Medicina clinica, sanità pubblica, scienze della vita e dell'ambiente, Università di L'Aquila, Piazzale Salvatore Tommasi 1, L'Aquila, Italy; Istituto Italiano di Antropologia, Piazzale Aldo Moro 5, 00185 Rome, Italy.
authors.forename: M E
authors.initials: ME
authors.lastname: Danubio
mesh_terms: D003241:Consanguinity; D003710:Demography; D005190:Family / Q000266:history*; D005260:Female; D005828:Genetics, Population / Q000639:trends*; D005843:Geography; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007558:Italy; D008297:Male; D008393:Marriage / Q000266:history* / Q000639:trends*; D009275:Names; D012424:Rural Population; D012919:Social Behavior / Q000266:history*; D012922:Social Change