• Body size, not phylogenetic relationship or residency, drives interspecific dominance in a little pocket mouse community

      Chock, Rachel Y.; Shier, Debra M.; Grether, Gregory F. (2018)
      The role of interspecific aggression in structuring ecological communities can be important to consider when reintroducing endangered species to areas of their historic range that are occupied by competitors. We sought to determine which species is the most serious interference competitor of the endangered Pacific pocket mouse, Perognathus longimembris pacificus, and more generally, whether interspecific aggression in rodents is predicted by body size, residency status or phylogenetic relatedness....
    • Cache pilfering in a granivore guild: Implications for reintroduction management

      Chock, Rachel Y.; Grether, Gregory F.; Shier, Debra M. (2019)
      Reintroduction programs that release endangered species back into areas from which they have been extirpated rarely take competitive interactions between species into account....
    • Fitness costs associated with ancestry to isolated populations of an endangered species

      Wilder, Aryn P.; Navarro, Asako Y.; King, Shauna N. D.; Miller, William B.; Thomas, Steven M.; Steiner, Cynthia C.; Ryder, Oliver A.; Shier, Debra M. (2020)
      ... The endangered Pacific pocket mouse (Perognathus longimembris pacificus) persists in three isolated populations in southern California. Mitochondrial and microsatellite data indicated that effective population sizes were extremely small (Ne< 50), and continued declines prompted a conservation breeding program founded by individuals from each population....