title: Study of a contact between two chromosomally monomorphic races of Sorex araneus L. (common shrew).
abstract: One hundred and twelve specimens of the common shrew from 21 populations in NE Poland were studied from an area of contact between chromosomal race II (metacentric chromosomes: hi, ko, gm, np) and race VII (ki, hn, gr, mp). No direct contact was found between the races in the study area; there were no mixed or hybrid populations. The shortest distance between populations of the two races was 1.2-1.6 km. Possible explanations for this pattern of the races' disjunction are discussed.
authors.affiliation: Institute of Biology, Warsaw University Białystok Branch, Poland.
authors.forename: S
authors.initials: S
authors.lastname: Fedyk
authors.forename: M
authors.initials: M
authors.lastname: Zajkowska
authors.forename: W
authors.initials: W
authors.lastname: Chetnicki
mesh_terms: D000818:Animals; D002875:Chromosomes / Q000648:ultrastructure*; D005260:Female; D005828:Genetics, Population; D007621:Karyotyping; D008297:Male; D011044:Poland; D012788:Shrews / Q000145:classification / Q000235:genetics*; D013045:Species Specificity