Molecular evolution of two lineages of L1 (LINE-1) retrotransposons in the california mouse, Peromyscus californicus.

The evolution of social and reproductive monogamy in Peromyscus, evidence from Peromyscus californicus (the California Mouse)

The biparental care system of the California mouse, Peromyscus californicus.

Most knowledge of parent-offspring relations in mammals is derived from studies of mother-infant interactions. Male parental care has been less well studied. We explored maternal and paternal behavior of the California mouse, Peromyscus californicus. Six pairs of parents and their young were videotaped continuously for 12 hours/day, on alternate days from Days 1 to 31 postpartum. Males exhibit ...

Two persistent LINE-1 lineages in Peromyscus have unequal rates of evolution.

LINE-1, the major family of long, interspersed repeats in the mammalian genome, moves via an RNA intermediate and encodes its own reverse transcriptase. Comparative sequence analysis was used to reconstruct the phylogenetic history of LINE-1 dynamics in the deer mouse, Peromyscus. As is the case in Mus and Rattus, a very small number of active templates produce the majority of LINE-1 copies in ...

Differences in Ultrasonic Vocalizations between Wild and Laboratory California Mice (Peromyscus californicus)

BACKGROUND Ultrasonic vocalizations (USVs) emitted by muroid rodents, including laboratory mice and rats, are used as phenotypic markers in behavioral assays and biomedical research. Interpretation of these USVs depends on understanding the significance of USV production by rodents in the wild. However, there has never been a study of muroid rodent ultrasound function in the wild and comparison...

Niche Partitioning by Peromyscus californicus and Peromyscus boylii in Mixed Evergreen Forest

We used 126 Sherman live traps on a 9 by 14 grid at the University of California Santa Cruz Forest Ecology Research Plot (FERP) to look at small mammal diversity in a mixed evergreen forest. The ability for Peromyscus boylii and Peromyscus californicus to coexist in the same area is believed to be a form of niche partitioning at the canopy level. We used multivariate logistic regression to look...