Sustainable Populations

Unite field and laboratory studies to ensure the long-term survival of captive and wild populations of endangered species

• Accelerate major discoveries in the ecology, physiology, and behavior of endangered species that inform conservation

A key goal for CRES is to elucidate the ecological, physiological, behavioral, and genetic factors that affect survival and reproductive success in captivity and in the wild. Our multidisciplinary approach is aimed at filling important knowledge gaps in our understanding of such critical issues as breeding biology, maternal care, stress, habitat requirements, and population dynamics. In many cases, we are able to successfully utilize similar, non-endangered animals in the Zoological Society of San Diego's diverse collection as surrogates for their endangered counterparts.

• Innovate and apply new techniques that enhance reproduction of endangered species

We strive to optimize reproduction, particularly in small populations, by applying innovative technologies pioneered for human and domestic animal reproduction to the cause of endangered species recovery. We pursue non-invasive approaches that provide managers with strategies that maximize preservation of genetic diversity over the long term.

• Monitor and manage endangered populations at the gene level to maintain fitness and ensure survival

Over time, small populations lose genetic diversity and their ability to adapt to changing environmental conditions, both in captivity and in the wild. Through long-term monitoring and careful management of endangered populations, we ensure that they retain maximum diversity and remain genetically viable. Our work has formed a key component of recovery programs for California condors, rock iguanas, Pzewalski’s horses, orangutans, gazelles, bighorn sheep, and many others.

• Reveal and understand the impact of animal communication systems on reproduction and survival

CRES scientists are working to better understand how animal communication influences reproductive success and other processes important for conservation. Our approach is to apply advances in the growing field of sensory ecology to help us better manage species in our care, as well as in nature. Knowledge of animals’ perceptual abilities is invaluable for mitigating human impacts on wild populations and modifying animal behavior to maximize success of challenging translocation and reintroduction programs. Our current focus is on koalas, elephants, pocket mice, giant pandas, and polar bears.

• Improve management of the Zoological Society of San Diego's living collections through scientific research and discovery

The world-renowned living collections at the San Diego Zoo and the Wild Animal Park serve as a critical safety net should populations ever be lost from the wild. CRES works closely with Zoological Society curators, veterinarians, and horticulturalists in concert with partners at zoos and botanical gardens around the world to establish and maintain populations that can be self-sustaining over the long term.