• Advancing laboratory-based zoo research to enhance captive breeding of southern white rhinoceros

      Tubbs, Christopher W.; Minteer, Ben A.; Maienschein, Jane; Collins, James P. (University of Chicago PressChicago, IL, 2018)
      The captive southern white rhinoceros (SWR) is not currently self-sustaining because of low fertility of captive-born females. The cause of this phenomenon is believed to be high dietary levels of phytoestrogens; endocrine disrupting chemicals (EDCs) produced by plants that can mimic the reproductive hormone estrogen....
    • Opportunities and challenges for conserving small populations: An emerging role for zoos in genetic rescue

      Ryder, Oliver A.; Minteer, Ben A.; Maienschein, Jane; Collins, James P. (University of Chicago PressChicago, IL, 2018)
      The growing commitment of zoos to address accelerated rates of extinction and losses of biodiversity utilizing the populations they manage has led to the exploration of options to rescue species from extinction, including advanced genetic and reproductive technologies. The availability of banked viable cell cultures, such as those held in collections like San Diego Zoo Global’s Frozen Zoo® and other facilities, may ultimately provide resources to reduce extinction risk of species for which appropriate samples have been collected....