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Phylogenetic Analysis Of The Socioecology Of Neotomine-Peromyscine Rodents, M C. Kalcounis-Rueppell, David O. Ribble
Phylogenetic Analysis Of The Socioecology Of Neotomine-Peromyscine Rodents, M C. Kalcounis-Rueppell, David O. Ribble
Biology Faculty Research
This chapter focuses on the breeding systems of Neotomine-Peromyscine rodents. There are three specific objectives to this chapter. First, we describe the patterns for major Neotomine-Peromyscine clades using data collected from the literature (table 6.1). Second, we examine data from the literature on the following breeding behaviors: male spacing, female spacing, relative intersexual home range/territory size, paternal care, and juvenile dispersal patterns. We examine breeding behavior data in a phylogenetic framework to test if any phylogenetic patterns emerge in the observed variation in these breeding behaviors and if relationships occur among these behaviors. Third, we examine in a phylogenetic framework …
Social Organization Of The Eastern Rock Elephant-Shrew (Elephantulus Myurus): The Evidence For Mate Guarding, David O. Ribble, M. R. Perrin
Social Organization Of The Eastern Rock Elephant-Shrew (Elephantulus Myurus): The Evidence For Mate Guarding, David O. Ribble, M. R. Perrin
Biology Faculty Research
Understanding the costs and benefits of defending solitary females, or mate guarding, may be the key to understanding the evolution of monogamy in most mammals. Elephant-shrews, or sengis, are a unique clade of small mammals that are particularly attractive for studies of mate guarding. We studied the spatial organization of Eastern Rock Sengis (Elephantulus myurus) in KwaZulu-Natal, South Africa, from August – December 2000. Our objectives were to describe the home ranges of males and females using radiotelemetry, noting the sizes and overlap of adjacent ranges and how the spatial organization changes through time. Males and females were …
Dispersal In A Monogamous Rodent, Peromyscus Californicus, David O. Ribble
Dispersal In A Monogamous Rodent, Peromyscus Californicus, David O. Ribble
Biology Faculty Research
In view of theoretical interest in the relationships between mating systems and dispersal patterns and the paucity of empirical data on dispersal in monogamous mammals, I studied natal dispersal in the monogamous rodent Peromyscus californicus. Genealogical relationships were determined using fluorescent pigment transfer and DNA fingerprinting, and dispersal distances were determined using dispersal fences and intensive trapping. Minimum dispersal distances were greater for females than for males. Philopatric males (those settling within one home-range diameter of their birth site) tended to be from smaller litters than non-philopatric males. Minimum dispersal distances of males were positively associated with natal litter …