Reproducción y densidad de la liebre cola-negra (Lepus californicus) en relación a factores ambientales, en la Reserva de la Biosfera Mapimí, Desierto Chihuahuense.

Gloria L. Portales-Betancourt, Lucina Hernández Laundré, John W. Laundré, Fernando Cervantes

Resumen


The knowledge on the reproduction of wildlife species is necessary for an appropriate conservation or management program. Currently, very few studies have been carried out on the reproductive biology and demography of Lepus californicus in the Chihuahuan Desert; and the role of environmental factors in these processes. Also, the information on their population densities and the factors that determine their growth or decrease are of great relevance for to know the patterns in the reproduction of the species. The objective of this study was to describe the reproductive patterns of L. californicus in relation to temperature, precipitation, evaporation and photoperiod, and the relative abundance of the species at the Mapimí Biosphere Reserve (RBM). Testicular weight was positively correlated with photoperiod (R = 0.80, P = 0.01). Ovary weight was correlate with photoperiod (R = 0.92, P = 0.0001), average environmental temperature (R = 0.71, P= 0.037) and precipitation (R = 0.82, P = 0.015). Results indicate that photoperiod is the main factor that promotes the beginning of the reproductive cycle, although females may need multiple factors to respond to the high annual variability in the production of plants. Different response between males and females to environmental stimuli may be due to different reproductive strategies. For females, reproductive cost is greater that for males, they respond to a complex series of environmental cues, as a strategy to maximize its reproductive success.


Palabras clave


DISTANCE; Lagomorpha; Mexico; photoperiod; reproduction

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FACTOR DE IMPACTO 2020 (SCOPUS): 1.2


THERYA es publicada por la Asociación Mexicana de Mastozoología A. C.  Se distribuye bajo una Licencia de Creative Commons Atribución-NoComercial-SinDerivar 4.0 Internacional.

DERECHOS DE AUTOR Y DERECHOS CONEXOS, THERYA es una publicación digital cuatrimestral editada por la Asociación Mexicana de Mastozoología A. C.  Hacienda Vista Hermosa 107, Colonia Villa Quietud, Coyoacan 04960.  Distrito Federal, México.  Telefono (612) 123-8486, www.mastozoologiamexicana.org.  Editor responsable: Dr. Sergio Ticul Álvarez Castañeda (therya@cibnor.mx).  Reservas de Derechos al Uso Exclusivo No. 04-2009-112812171700-102, ISSN: 2007-3364 ambos otorgados por el Instituto Nacional de Derechos de Autor.  Responsable de la última actualización de este número, Unidad de informática de la Asociación Mexicana de Mastozoología A. C.  Dr. Sergio Ticul Álvarez Castañeda.  Instituto Politécnico Nacional 195.  La Paz, Baja California Sur, C. P. 23096.  Tel 612 123 8486.