The venomous coral snakes (genus Micrurus) of Costa Rica

dc.creatorSavage, Jay M.
dc.creatorVial, James L.
dc.date2016-12-07
dc.date.accessioned2023-08-03T18:18:06Z
dc.date.available2023-08-03T18:18:06Z
dc.identifierhttps://revistas.ucr.ac.cr/index.php/rbt/article/view/27283
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7900144
dc.descriptionFour species of venomous coral snakes (Micrurus) occur in Costa Rica. The single bicolor species, M. mipartitus has previously been defined as two subspecies; however, variations in diagnostic characters clemonstrate dinal shift that precludes recognition of geographic races.Presence of the tricolor M. clarki is concluded from but a single Costa Rican specimen, although the species is otherwise definitely known from adjacent areas in Panamá.Variation among tricolor coral snakes allied to M. nigrocinctus suggests the presence of three populations that occupy southwestern Pacific Costa Rica, northwestern Pacific Costa Rica and western Nicaragua, and Atlantic lowland Costa Rica. Gradual intergradation in the Pacific lowlanels, as well as more complex intergrading patterns in the Meseta Central and Arenal regions and over a broad arca of Nicaragua, eliminate the value of subspecific designations. Where M. nigrocinctus occurs sympatrically with populations of the closely related M. alleni, they can be constently distinguished by differences in head cap patterns and segmental counts.Micrurus alleni is composed of three allopatric populations in the Atlantic lowlands of Costa Rica anel Nicaragua, the southwestern Pacific lowlands of Costa Rica and adjacent southwestern Panama, and Pacific lowland Darién in eastern Panama. Becaust of limited information on variation among these populations we prefer not to apply the trinomials.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherUniversidad de Costa Ricaen-US
dc.relationhttps://revistas.ucr.ac.cr/index.php/rbt/article/view/27283/27390
dc.sourceRevista de Biología Tropical; Vol. 21 No. 2 (1973): Volume 21 - Regular number 2 - July 1973; 295-349en-US
dc.sourceRevista de Biología Tropical; Vol. 21 Núm. 2 (1973): Volumen 21 - Número regular 2 - Julio 1973; 295-349es-ES
dc.sourceRevista Biología Tropical; Vol. 21 N.º 2 (1973): Volumen 21 - Número regular 2 - Julio 1973; 295-349pt-PT
dc.source2215-2075
dc.source0034-7744
dc.source10.15517/rbt.v21i2
dc.titleThe venomous coral snakes (genus Micrurus) of Costa Ricaen-US
dc.titleThe venomous coral snakes (genus Micrurus) of Costa Ricaes-ES
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeArticleen-US


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