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    Natural history and karyology of the Yucatán vesper mouse, Otonyctomys hatti

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    Issue Date
    2005
    Author
    Genoways, Hugh H.
    Timm, Robert M.
    Engstrom, Mark D.
    Publisher
    Instituto de Biología and Instituto de Ecología, UNAM, and Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, México, D.F.
    Type
    Book chapter
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    Abstract
    Seventeen specimens of the rare Yucatán vesper mouse, Otonyctomys hatti, are now known from Belize, Guatemala, and the Mexican states of Campeche, Quintana Roo, and Yucatán. We herein report a second specimen of O. hatti, from Belize, extending the known geographic range of the species 95 km to the southeast in the country. This is the first location at which O. hatti has been taken sympatrically with the Central American vesper mouse, Nyctomys sumichrasti. We also report data on three additional specimens of O. hatti from Campeche. Nyctomys and Otonyctomys share similar habits and habitat requirements, and might compete where they overlap. However, the distribution of O. hatti corresponds closely to that of other Yucatán endemics, and the distinct distributions of the two genera probably reflects biogeographic history and different habitat requirements, rather than result from direct competition. The karyotype of O. hatti is 2n = 50, FN = 58. Although superficially similar, it differs in important respects with the karyotypes reported for N. sumichrasti.
     
    Resumen--Diescisiete especímenes del ratón Otonyctomys hatti, especie rara de Yucatán, son ahora conocidos de Belice, Guatemala y los Estados de Campeche, Quintana Roo y Yucatán. Aquí, informamos de un segundo especímen de O. hatti de Belice, extendiendo la distribución 95 km al suroeste de este país. Esta es la primera vez que se coleta O. hatti simpátricamente con una especie similar de cenotramérica, Nyctomys sumichrasti. Asimismo, presentamos datos sobre tres especimenes adicionales de O. hatti de Campeche. Nyctomys y Otonyctomys comparten requisitos de hábitos y hábitat similares y, por tanto, pueden competir si coinciden geográficamente. Sin embargo, la disitribución de O. hatti corresponde de manera más similar a otras especies endémicas de Yucatán y la distribución diferentes de ambos géneros probablemente refleja una historia biogeográfica y requisitos de hábitat diferentes, respectivamente, más que una exclusión por competencia. El cariotipo de O. hatti es 2n = 50, FN = 58. No obstante, es superficialmente similar, muestra importantes diferencias con los cariotipos reportados para N. sumichrasti.
     
    URI
    http://hdl.handle.net/1808/4530
    Collections
    • Ecology and Evolutionary Biology Scholarly Works [1379]
    • Center for Latin American and Caribbean Studies Scholarly Works [743]
    • Kansas African Studies Center Scholarly Works [273]
    Citation
    Genoways, H. H., R. M. Timm, and M. D. Engstrom. 2005. Natural history and karyology of the Yucatán vesper mouse, Otonyctomys hatti. Pp. 215–220, in Contribuciones mastozoológicas en homenaje a Bernardo Villa (V. Sánchez-Cordero and R. A. Medellín, eds.). Instituto de Biología and Instituto de Ecología, UNAM, and Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, México, D.F., 706 pp.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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