Terri Roth
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Terri Lynn Roth (b. 1964/1965) is the vice president of Conservation and Science at the
Cincinnati Zoo and Botanical Garden The Cincinnati Zoo & Botanical Garden is the second oldest zoo in the United States, founded in 1873 and officially opening in 1875. It is located in the Avondale, Cincinnati, Avondale neighborhood of Cincinnati, Ohio. It originally began with ...
. Additionally, she is the director of the Center for Conservation and Research of Endangered Wildlife (CREW). She has made several breakthroughs in the captive breeding of
Sumatran rhinoceros The Sumatran rhinoceros (''Dicerorhinus sumatrensis''), also known as the Sumatran rhino, hairy rhinoceros or Asian two-horned rhinoceros, is a rare member of the family Rhinocerotidae and one of five extant species of rhinoceros; it is the o ...
es, a
critically endangered An IUCN Red List critically endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of December 2023, of t ...
species with fewer than 300 left.


Early life

Terri Roth grew up on a small farm in California; she stated that even from a young age, she enjoyed playing with snakes, toads, and lizards, "whatever I could catch." She attended the
University of California, Davis The University of California, Davis (UC Davis, UCD, or Davis) is a Public university, public Land-grant university, land-grant research university in Davis, California, United States. It is the northernmost of the ten campuses of the University ...
, initially majoring in
genetics Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinians, Augustinian ...
but then switching emphasis to focus on reproductive physiology. She received both her
bachelor's A bachelor's degree (from Medieval Latin ''baccalaureus'') or baccalaureate (from Modern Latin ''baccalaureatus'') is an undergraduate degree awarded by colleges and universities upon completion of a course of study lasting three to six years ( ...
and
master's A master's degree (from Latin ) is a postgraduate academic degree awarded by universities or colleges upon completion of a course of study demonstrating mastery or a high-order overview of a specific field of study or area of professional prac ...
degrees at the University of California. She then attended
Louisiana State University Louisiana State University and Agricultural and Mechanical College, commonly referred to as Louisiana State University (LSU), is an American Public university, public Land-grant university, land-grant research university in Baton Rouge, Louis ...
, earning a
PhD A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...
in animal reproductive physiology with a minor in immunology. She was then a postdoc at the National Zoo.


Work


Rhinoceroses

Terri Roth has worked with rhinoceroses since 1995. In 1996, she joined CREW. Prior to that, she had worked at the National Zoo at its Center for Research and Conservation as a
gamete A gamete ( ) is a Ploidy#Haploid and monoploid, haploid cell that fuses with another haploid cell during fertilization in organisms that Sexual reproduction, reproduce sexually. Gametes are an organism's reproductive cells, also referred to as s ...
biologist. Roth has been an integral part of the Sumatran rhinoceros captive breeding program. Roth is credited with turning the program around: she began using
operant conditioning Operant conditioning, also called instrumental conditioning, is a learning process in which voluntary behaviors are modified by association with the addition (or removal) of reward or aversive stimuli. The frequency or duration of the behavior ma ...
to train captive Sumatran rhinos at the Cincinnati Zoo to tolerate rectal ultrasounds, which allowed the zoo's scientists to observe changes in the
ovaries The ovary () is a gonad in the female reproductive system that produces ova; when released, an ovum travels through the fallopian tube/oviduct into the uterus. There is an ovary on the left and the right side of the body. The ovaries are endocr ...
. Roth was able to determine that Sumatran rhinos are induced ovulators, meaning that the female will not release an egg unless she is around a male. After determining how to induce ovulation, the captive breeding program experienced several more setbacks after the female rhino miscarried multiple times. After another pregnancy, Roth decided to supplement the female's diet with the hormone
progesterone Progesterone (; P4) is an endogenous steroid and progestogen sex hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species. It belongs to a group of steroid hormones called the progestogens and is the ma ...
to attempt to sustain the pregnancy, which was successful. The first Sumatran rhino born from the captive breeding program was born 13 September 2001. Since all remaining Sumatran rhinos have since been transferred back to their native range, Roth has traveled to
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, ...
several times to share the
assisted reproductive technology Assisted reproductive technology (ART) includes medical procedures used primarily to address infertility. This subject involves procedures such as in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), and cryopreservation of ga ...
developed at the Cincinnati Zoo with local veterinarians. Her breakthroughs in Sumatran rhino breeding were the subject of a 2007
children's book Children's literature or juvenile literature includes stories, books, magazines, and poems that are created for children. In addition to conventional literary genres, modern children's literature is classified by the intended age of the reade ...
, ''Emi and the Rhino Scientist''. She has also been a board member of the International Rhino Foundation since 2002.


Other species

Terri Roth has authored or coauthored several papers relating to artificial reproductive technology in animals. Subjects of her research include
cheetah The cheetah (''Acinonyx jubatus'') is a large Felidae, cat and the Fastest animals, fastest land animal. It has a tawny to creamy white or pale buff fur that is marked with evenly spaced, solid black spots. The head is small and rounded, wit ...
s, clouded leopards, and the scimitar oryx. She has also worked with
polar bear The polar bear (''Ursus maritimus'') is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can Hybrid (biology), interbreed. The polar bear is the largest extant species of bear ...
s, including conducting assessments of fertility,
artificial insemination Artificial insemination is the deliberate introduction of sperm into a female's cervix or uterine cavity for the purpose of achieving a pregnancy through in vivo fertilization by means other than sexual intercourse. It is a fertility treatment ...
, and creating a polar bear sperm bank.


Awards and honors

In 2004, Terri Roth received the Chevron Texaco Conservation Award for her work with Sumatran rhinos. In 2012, Roth was a nominee for the Indianapolis Prize.


References

{{DEFAULTSORT:Roth, Terri Living people 21st-century American zoologists University of California, Davis alumni Louisiana State University alumni Year of birth missing (living people)