CLINEAL VARIATION IN CAUCASIAN TUR AND ITS TAXONOMIC RELEVANCE

作者: Radion G. Buchukuri , Pavel J. Weinberg , Muzhigit I. Akkiev

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摘要: espanolHemos estudiado la variacion geografica del tur Caucaso occidental con respecto a 8 caracteristicas y rasgos empleados en morfologia tradicional (por ejemplo, el grado de espiral las vainas nucleos los cuernos machos hembras, forma corte transversal nucleo macho adulto, raya oscura piernas, longitud barba adulto invierno, etc.) Practicamente todas estudiadas muestran una este-oeste gradiente ecologico. Normalmente hay pendientes ecologico hacia oeste este (mas prolongada) desde area alrededor Monte Elbrus; dentro parte muy inclinada muchas veces variaciones significativas. Tambien ocurre parecida caso hembras tur. A pesar individual marcada que entre poblaciones locales Elbrus. No se pueden considerar mezcladas compuestas por morfotipos occidentales orientales. Las multiples correlacionadas grandes ungulados activos mueven un rango limitado (770 km largo hasta 80 ancho) dificilmente explicar basandose dinamica factores medioambientales. La tambien es indicativa (pendientes cortas al largas centro inclinado fluctuante) hace pensar contacto secundario e hibridaci6n (Mayr 1968). Teniendo cuenta solp existe ecologico, haber ocurrido contactos dos taxones primarios principio estaban separados unica barrera Central. mas probable seria glaciacion durante pulsaciones Pleistoceno d Ebrus Kazbek este; zona glaciar todavia parcialmente esta situada donde fluctuante Este podria separado periodicamente toda poblacion poblaciones, creando condiciones para evolucion 2 taxones: oriental occidental. Debido pulsacion, iniciales no era constante probablemente periodos aislamiento fueron lo suficientemente prolongados entraban (como ahora), hubo hibridacion ellas les fue posible desarrollar mecanismos reproductivo efectivo permitieran llegar especies "verdaderas". EnglishGeographic variation in traits and features used traditional morphology have been studied Caucasian (e.g. degree of spiraling horn sheaths cores males females, shape cross-section adult cores, dark stripe parent on me legs etc.). Almost all the examined display lineal east-west variation, usually with sloping parts cline to west east (longer one) from around Mt. Elbrus, while this steep part occurs, often considerable fluctuations within. Resembling clineal variarlon occurs females as well. Multiple correlating large actively moving ungulate within limited range long up 10 wide) can hardly be explained by geographic dynamics environmental factors. The dine is also very telling, suggesting secondary contact hybridization Since mere one cline, two primary taxa may occurred, initially separated barrier, most probably glaciations centre which was pulsing during Pleistocene including Mnts. E1brus east, situated where fluctuating pan occurs. This gIaciation couId periodically separate all-Caucasus population into create conditions for evolving taxa: East-Caucasian West-Caucasian lsolation periods were insufficiently populations contacted (as now), hybridized did not evolve mechanisms effective reproductive isolation shaping "good" species.

参考文章(8)
Ernst Mayr, Animal Species and Evolution ,(1963)
Valérie Manceau, Laurence Després, Jean Bouvet, Pierre Taberlet, Systematics of the genus Capra inferred from mitochondrial DNA sequence data. Molecular Phylogenetics and Evolution. ,vol. 13, pp. 504- 510 ,(1999) , 10.1006/MPEV.1999.0688
Nathalie Pidancier, Steve Jordan, Gordon Luikart, Pierre Taberlet, None, Evolutionary history of the genus Capra (Mammalia, Artiodactyla): discordance between mitochondrial DNA and Y-chromosome phylogenies. Molecular Phylogenetics and Evolution. ,vol. 40, pp. 739- 749 ,(2006) , 10.1016/J.YMPEV.2006.04.002
D'Arcy Wentworth Thompson, On Growth and Form ,(1917)
Thompson, DʼArcy Wentworth, On Growth and Form. New Edition Journal of Nervous and Mental Disease. ,vol. 98, pp. 558- ,(1943) , 10.1097/00005053-194311000-00053
John A. Bissonette, George B. Schaller, Mountain Monarchs--Wild Sheep and Goats of the Himalaya Journal of Wildlife Management. ,vol. 43, pp. 277- 278 ,(1979) , 10.2307/3800675