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No. de sistema: 000019215

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 181108m20169999xx^^r^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-cp
a| ncgt---
044 _ _ a| xx
100 1 _ a| Ríos Mendoza, Evelyn Patricia
e| autora
245 1 0 a| Genetic variation in Heteromys nelsoni (Rodentia: Heteromyidae) reveals its possible natural extinction
506 _ _ a| Acceso en línea sin restricciones
520 1 _ a| Heteromys nelsoni is restricted to cloud forests in the mountain range of the southern state of Chiapas, Mexico, and western Guatemala. It is considered an endemic species, under special protection, and endangered because its habitat has been modified by excessive logging and extensive cattle grazing. We evaluated the genetic variation of H. nelsoni and the relationship between individuals from two geographic areas surrounding Cerro Mozotal, Chiapas, using three mitochondrial genes [cytochrome b (Cyt b), cytochrome c oxidase subunit 1 (COI), and control region (D-Loop)]. Low genetic diversity (d<0.9, π<0.005) and average divergence (<0.6%) in mtDNA were observed among the specimens examined. The haplotypes are distributed throughout the areas sampled; therefore, no areas where individuals showed genetic identity, with exclusive haplotypes, were found. Heteromys nelsoni populations have undergone a very recent demographic contraction and the low genetic diversity observed indicates an unfavorable future for the species. Changes in the climatic conditions coupled with other anthropogenic pressures have likely reduced the optimal habitat area for the species. It is imperative to develop programs aiming to reduce the probable risk of extinction of this species.
530 _ _ a| Disponible en línea
533 _ _ a| Reproducción electrónica en formato PDF
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Heteromys nelsoni
650 _ 4 a| Roedores
650 _ 4 a| Variación genética
650 _ 4 a| Población animal
650 _ 4 a| Filogeografía
651 _ 4 a| El Mozotal, Motozintla (Chiapas, México)
651 _ 4 a| San Marcos (Guatemala)
700 1 _ a| Lorenzo Monterrubio, Consuelo
e| autora
700 1 _ a| Álvarez Castañeda, Sergio Ticul
c| Doctor
d| 1970-
e| autor
773 0 _
t| Mammalia
g| Vol. 81, no. 3 (April 2016), p. 1-8
x| 1864-1547
856 4 1 u| https://www.degruyter.com/view/journals/mamm/81/3/article-p289.xml?language=en
z| Artículo electrónico
856 _ _ u| http://aleph.ecosur.mx:8991/F?func=service&doc_library=CFS01&local_base=CFS01&doc_number=000019215&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
y| Artículo electrónico
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Noviembre 2018
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Biblioelectrónica
LNG eng
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Genetic variation in Heteromys nelsoni (Rodentia: Heteromyidae) reveals its possible natural extinction
Ríos Mendoza, Evelyn Patricia (autora)
Lorenzo Monterrubio, Consuelo (autora)
Álvarez Castañeda, Sergio Ticul, 1970- (autor)
Nota: Disponible en línea
Acceso en línea sin restricciones
Contenido en: Mammalia. Vol. 81, no. 3 (April 2016), p. 1-8. ISSN: 1864-1547
No. de sistema: 19215
Tipo: - Artículo con arbitraje
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Inglés

"Heteromys nelsoni is restricted to cloud forests in the mountain range of the southern state of Chiapas, Mexico, and western Guatemala. It is considered an endemic species, under special protection, and endangered because its habitat has been modified by excessive logging and extensive cattle grazing. We evaluated the genetic variation of H. nelsoni and the relationship between individuals from two geographic areas surrounding Cerro Mozotal, Chiapas, using three mitochondrial genes [cytochrome b (Cyt b), cytochrome c oxidase subunit 1 (COI), and control region (D-Loop)]. Low genetic diversity (d<0.9, π<0.005) and average divergence (<0.6%) in mtDNA were observed among the specimens examined. The haplotypes are distributed throughout the areas sampled; therefore, no areas where individuals showed genetic identity, with exclusive haplotypes, were found. Heteromys nelsoni populations have undergone a very recent demographic contraction and the low genetic diversity observed indicates an unfavorable future for the species. Changes in the climatic conditions coupled with other anthropogenic pressures have likely reduced the optimal habitat area for the species. It is imperative to develop programs aiming to reduce the probable risk of extinction of this species."


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