My students, collaborators and I study how the environment shapes the behavior and physiology of humans and non-human primates (and now dogs and children, too!). I am an Associate Professor at the University of Arizona and largely conduct research in Madagascar. I use a variety of methods, including hormonal analysis. For more information on the Laboratory for the Evolutionary Endocrinology of Primates, see LEEP. For information on our lemur facial recognition project, see LemurID.
Prospective Graduate Students...
Please reach out via email to discuss your interests and see if our program is a good fit for you. I'm happy to set up a virtual meeting, and put you in touch with students who have worked with me.
Other researchers at UA outside of the School of Anthropology who study or have studied primate behavior, ecology, and evolution include Drs. Dieter Steklis, Netzin Steklis, Jennifer Verdolin, and Elise Lauterbur.
Recent news from LEEP and UA Biological Anthropology
Join us on Science Friday on Arizona Public Media! Learn about our latest research on the relationship between paternal care and estradiol levels in red-bellied lemurs. Episode 360: Looking at lemur behavior in Madagascar. 03/24/2023
Our research covered in UA Now! Learn about our latest research on the relationship between paternal care and estradiol levels in red-bellied lemurs here! 02/21/2023
New video about our research! Learn about our research, red-bellied lemurs, and the people we work with in Ranomafana National Park, Madagascar in this video created by the UA College of Social and Behavioral Sciences on YouTube. 02/13/2023
New pub alert! Read about how estradiol levels may help facilitate paternal care in red-bellied lemurs here. Authors from LEEP include two undergraduate LEEP alumni, Madalena Birr and Juliana Dixon, and Stacey Tecot. 02/10/2023
Read about red-bellied lemurs and rufous mouse lemurs in Stacey’s interview with the Lemur Conservation Network for #World Lemur Day! You can read the interview here. 10/12/2022.
New mega-collaborative pub alert! Factors influencing terrestriality in primates of the Americas and Madagascar, which you can find
here. This research was also covered by multiple media outlets including the Washington Post. 10/08/2022.
New pub alert! Nonhuman Primate Paternal Care: Species and Individual Differences in Behavior and Mechanisms, with Toni Ziegler, Eduardo Fernandez-Duque, Anne Savage, and Chuck Snowden. In the book Patterns of Parental Behavior:
From Animal Science to Comparative Ethology and Neuroscience, which you can find
here. 10/06/2022.
Congratulations to LEEP grad student Katie King! Katie won first prize in the American Society of Primatologists virtual student poster competition for her research on oxytocin and affiliation in Verreaux’s sifaka. See her announcement here. 08/30/2022.
LEEP welcomes new lab coordinator Madison Grant! You can read more about Maddy on our LEEP site here. 08/21/2022.
Gita Gnanadesikan's work in LEEP on the specificity of oxytocin urine immunoassays is online! You can see the article here, and it's free to access for the next 50 days. 06/14/2022.
Congrats to Katie King, who received an American Society of Primatologists Conservation Grant! She will work with the Guides Association of Ranomafana to continue a conservation education program in the forest, and you can read more about it here, 04/29/2022.
Congrats to Arielle Liu, a new NSF Graduate Research Fellow! Arielle plans to conduct research in Ranomafana National Park, Madagascar on the effects of climate change on red-bellied behavior and physiology. You can read more about it here, 04/04/2022.
Elizabeth Carranza is in the Arizona Daily Star! Elizabeth spoke with a student journalist about our collaborative work with the Arizona Canine Cognition Center here, 05/06/2022.
We are SO excited about our new red-bellied lemur face recognition application! With partners at the University of Arizona Tech Core, we now have a web interface that we can use to identify individual red-bellied lemurs. This noninvasive tool enhances our research in so many ways. You can more about the application here, 03/31/2022.
We published a new study using agent-based modeling to understand the mechanisms of collective decision making! Our collaborative team was brought together and supported by the National Academies Keck Futures Initiative, and included experts in a variety of systems, from cells to primates. You can read it here, 10/23/2021.
Several LEEPers presented their work at the International Society of Wildlife Endocrinology virtual conference!! Gita Gnanadesikan presented work on urinary oxytocin in mice and Verreaux's sifaka, and Li-Dunn Chen presented work on black-and-white ruffed lemur androgens and agonism. Here are the full details:
Gnanadesikan G, Hammock EAD, Tecot SR, Lewis R, MacLean EL. Developing a new extraction method to minimize interference in immunoassay of urinary oxytocin.
Chen L-D, Ravoniarinalisoa V, Louis E, Cook E, Hays A, Tecot S, Johnson S. (2021). Changes in fecal androgen levels and agonism rates in the mating versus post-mating seasons in black-and-white ruffed lemurs.
08/17/2021.
Gita Gnanadesikan's work in LEEP on the specificity of oxytocin plasma immunoassays is online! You can see the early view article here, 07/26/2021.
Stacey Tecot and collaborator Andrea Baden talk lemurs and life on the Leakey Foundation's Lunchbreak Science live-streamed webinar series for Earth Day! You can watch the recording here, 04/22/2021.
Our work on red-bellied lemurs is included in a new publication on fermented food feeding in primates! We're happy to have contributed to this collaborative project spearheaded by Dr. Katie Amato. You can read the article here, and read coverage in The Economist here, 03/26/2021.
Red-bellied lemurs make the NYT! We're happy to be included in the conversation about aged lemurs finding companionship at the Duke Lemur Center this Valentine's Day. You can find it here, 02/14/2021.
Congratulations to Gita Gnanadesikan, on her most recent publication on breed differences in dog cognition! AND it's open access! You can find it here, 02/01/2021.
Ph.D. candidate Gita Gnanadesikan and Dr. Stacey Tecot presented at the first Animal Behavior Society Twitter Conference! See Gita's presentation here, and Stacey's presentation here, 01/27/2021.
LEEP welcomes its newest members, Arielle Liu and Katie King! Both are first-year graduate students who will be studying red-bellied lemurs in Madagascar and conducting hormone analyses in LEEP. 08/16/2020.
Best Practices in Field Primatology in the Age of COVID-19 Stacey Tecot and colleagues offered some advice on how primatologists should ethically conduct research during the COVID-19 pandemic in the August edition of the Conservation Action Network, now available to download. This is just part of the conversation, and we welcome others to join in and offer their perspectives. Access the Action Letter here, and see the Spanish version here. Also see the American Society of Primatologists website to donate to the new Emergency Fund to support habitat country primatologists preventing COVID transmission to project personnel, wildlife, and local communities around their field sites. Click the "donate" button here, 08/13/2020.
Congratulations to Gita Gnanadesikan! Gita's research on the genetic bases of dogs was recently covered by Smithsonian Magazine. You can read about it here. 07/31/2020.
New grant on Preserving Knowledge of Endemic Species in Madagascar Through Storytelling, from the School of Anthropology! This project will support interviews with Research Technicians and Tourist Guides in the Ranomafana region, conducted by Stacey Tecot, Clara Randimbiarimanana, and Arielle Liu. 05/16/2020.
Britt Singletary and Stacey have a new publication on multimodal signaling in pair-bonds! This work was part of Britt's Master thesis work, and you can read it in early view here. 02/03/2020.
Congrats to Madalena Birr, who won best undergraduate poster at SWABA (Southwestern Assoc. of Biological Anthropologists)! She presented on her work investigating the relationships between estradiol levels and paternal behavior in red-bellied lemurs. She also presented this work at the International Society of Wildlife Endocrinology in Kruger National Park, South Africa. This work was supported by the Leakey Foundation, the Social and Behavioral Sciences Research Institute, American Association of Physical Anthropologists, the University of Arizona, Hunter College, and the Rowe Wright Primate Fund. 11/04/19.
Britt Singletary and Stacey Tecot have a new publication on red-bellied lemur pair-bonds! This work was conducted at the Duke Lemur Center, and you can read about it here. 10/24/19.
We received a UA Faculty Seed Grant to continue our lemur facial recognition work! In collaboration with Tech.Global and Dr. Rachel Jacobs, we will develop an app that can be used in the field, while providing coding training to Engineering undergrad Ryan Alterman. 06/14/19.
Our paper on the red-bellied lemur gut microbiome is popular! It's one of the top 20 most downloaded papers in the Journal of Animal Ecology, from Jan 2017 – Dec 2018! Read it for free here through July 15, 2019! 06/06/19.
Drs. Eadie and Tecot were awarded a Co-Teaching Mini-Grant! They'll be applying active learning methods and philosophies to ANTH364-Natural History of our Closest Relatives, for Fall 2019. This is possible thanks to funding to the Association of American Universities from Northrup Grumman Foundation and support from the University of Arizona's Provost's office. 06/05/19.
Madalena Birr presented her research on paternal care and estradiol! LEEP member Madalena presented her Honor's thesis research at the Ecology and Evolutionary Biology expo and the Honor's expo. Her video fast-pitch was in the top 10, and she was chosen to compete in the Honor's fast-pitch competition. Her abstract was also accepted for the International Society of Wildlife Endocrinology meeting in South Africa!
See her great poster here! 04/20/19.
Why cuddle? Just in time for Valentine's Day! Our collaborator and past Research Assistant extraordinaire, Aura Raulo, talks about her experiences on our project, including how the messiness of science can lead to inspiration, and her own research path.
Listen here! 02/14/19.
We have a new publication in Conservation Physiology: "Faecal glucocorticoid metabolite profiles in diademed sifakas increase during seasonal fruit scarcity with interactive effects of age/sex class and habitat degradation". This was a collaboration with Mitch Irwin and Jean-Luc Raharison. You can read it here, Open Access! 02/06/19.
Arizona Canine Cognition Center and LEEP awarded grants from the NICHD and WALTHAM foundation! The research will investigate the biology of human-animal interactions, with a focus on dogs and children. 10/10/18. Updated 12/20/18.
Proud to be a part of a large, interdisciplinary team that contributed to "Evolutionary trends in host physiology outweigh diet in structuring primate gut microbiomes" in the ISME Journal. You can read it here. 08/10/18.
We have a new publication on "Interannual Variation in Diet, Dietary Diversity, and Dietary Overlap in Three Sympatric Strepsirrhine Species in Southeastern Madagascar" in the International Journal of Primatology. You can read it here. 05/08/18.
Our publication on allomaternal care and androgens is online! See the original paper in Physiology and Behavior, titled “Profiling caregivers: Hormonal variation underlying allomaternal care in wild red-bellied lemurs, Eulemur rubriventer” here. 05/02/18.
Our latest publication on the lemur gut microbiome is online! See the original paper in the Journal of Animal Ecology, titled “Social behavior and gut microbiota in red-bellied lemurs: In search of the role of immunity in the evolution of sociality” here, and coverage on Popular Science and UANews. 12/05/17.
Our latest publication on bamboo lemurs and climate change is online! See the original paper in Current Biology, titled “The culm before the storm: global climate change driving the extinction of the greater bamboo lemur (Prolemur simus)” here, and coverage on Scientific American/PBS Newshour, Newsweek, and UANews.10/17.
Two LEEP members present at the UA Undergraduate Biology Research Program Conference January 23rd! Juliana Constanzo presents her research on paternal care and estradiol in wild-living red-bellied lemurs, and Ariana Manson presents her research on maternal nutrition and health in conflict zones of northern Kenya.
Double grant news! In collaboration with Kathy Jack and Eva Wikberg, we have received two grants for "Making an alpha male: Socioendocrinology of dominance in male white-faced capuchin monkeys (Cebus capucinus)" from the L.S.B. Leakey Foundation and the Nacey Maggioncalda Foundation! 12/9/15
Abstracts on the hormonal underpinnings of allomaternal care have been accepted for the 2016 meeting of the American Association of Physical Anthropologists! Undergraduate Juliana Constanzo will present the work she conducted in LEEP as a UBRP student. Our field and lab groups will also participate in a symposium entitled 'Allomother-infant relationships across the Primate order: biomarkers, bonding, buffering, and other bidirectional effects'. 12/9/15
Another grant for Ph.D. student Britt Singletary! Britt received funding from the UA School of Anthropology for her dissertation research on how caregivers influence communicative and cognitive competence during early development. 11/2/15
New publication on the relationship between the pituitary gland and life history traits! Kamilar J and Tecot S. Connecting proximate mechanisms and evolutionary patterns: Pituitary gland size and mammalian life history. Journal of Evolutionary Biology. 28:1997-2008. doi: 10.1007/s10764-015-9875-8
Grant for Ph.D. student Britt Singletary! Britt received funding from the SBSRI for her dissertation research on the relationships between signaling and allomaternal care and their impact on child development. 10/1/15
