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THREE SPECIES CONCEPTS
Author(s) -
Lewin Ralph A.
Publication year - 1981
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1219942
Subject(s) - taxon , biology , ecology , competence (human resources) , evolutionary biology , geography , psychology , social psychology
Summary In an evolutionary continuum there can be no discontinuities delimiting species. Geographical barriers may rise or fall, separating or rejoining specific populations. Members of “biological species” are self‐distinguishing. “Taxonomists' species” are distinguishable to experts according to their competence and preference. “Nominal species” are taxa named for our convenience.