Tremaine (Tremie) Gregory is a conservation biologist whose work focuses on the impacts of terrestrial infrastructure development on wildlife in tropical forests. Gregory has been at the Center for Conservation and Sustainability since 2011. She co-leads the Sustainable Terrestrial Infrastructure Program, which focuses on the impacts of energy and transportation infrastructure on biodiversity, and the In-situ/Ex-situ Conservation Program, which builds capacity in biodiversity monitoring and management in Paraguay.

Gregory has studied a broad array of taxa, from mammals to insects. She has developed best practices in the implementation of natural canopy bridges to mitigate the impacts of linear infrastructure on arboreal mammals. Additionally, she has pioneered methods to study arboreal species with camera traps in the high canopy.

Gregory received a bachelor's degree in biology in Spanish from Bowdoin College in 1999. She earned a Master's degree and Doctorate in biological anthropology from Kent State University in 2006 and 2011, respectively. In 2011, Gregory joined the Center for Conservation and Sustainability as a postdoc and became a Research Scientist in 2013. During her time at CCS, she has mentored students, interns and postdocs. She has also contributed to capacity building workshops and courses in biodiversity monitoring, assessment and management.

Article

• Kubota, V. R., Linares-Palomino, Reynaldo, Gregory, Tremaine, Silva, H., Lombardo, L., Caballero, R., Mendoza, A., and Ugawa, S. 2023. "Assessment of Stand Characteristics and Soil of Upper Parana Atlantic Forests (Paraguay) Reveals High Habitat Heterogeneity." Journal of Tropical Forest Science, 35, (3) 283–298. https://doi.org/10.26525/jtfs2023.35.3.283. 2023
• Diniz, Milena Fiuza, Dallmeier, Francisco, Gregory, Tremaine, Martinez, Victor, Saldivar-Bellassai, Silvia, Benitez-Stanley, Maria Alejandra, and Sánchez-Cuervo, Ana María. 2022. "Balancing multi-species connectivity and socio-economic factors to connect protected areas in the Paraguayan Atlantic Forest." Landscape and Urban Planning, 222. https://doi.org/10.1016/j.landurbplan.2022.104400. 2022
• Gregory, Tremaine, Carrasco-Rueda, Farah, Balbuena, Diego, and Kolowski, Joseph. 2022. "Rush hour: arboreal mammal activity patterns in natural canopy bridges in the Peruvian Amazon." Folia Primatologica, 93, (3-6) 465–477. https://doi.org/10.1163/14219980-20211209. 2022
• Zhu, Chen, Li, Wande, Gregory, Tremaine, Wang, Duorun, Ren, Peng, Zeng, Di, Kang, Yi, Ding, Ping, and Si, Xingfeng. 2021. "Arboreal camera trapping: a reliable tool to monitor plant-frugivore interactions in the trees on large scales." Remote Sensing in Ecology and Conservation, https://doi.org/10.1002/rse2.232. 2021
• Moore, Jennifer F., Soanes, Kylie, Balbuena, Diego, Beirne, Christopher, Bowler, Mark, Carrasco-Rueda, Farah, Cheyne, Susan M., Coutant, Opale, Forget, Pierre-Michel, Haysom, Jessica K., Houlihan, Peter R., Olson, Erik R., Lindshield, Stacy, Martin, Jonathan, Tobler, Mathias, Whitworth, Andrew, and Gregory, Tremaine. 2021. "The potential and practice of arboreal camera trapping." Methods in Ecology and Evolution, https://doi.org/10.1111/2041-210X.13666. 2021
• Balbuena, Diego, Alonso, Alfonso, Panta, Margot, Garcia, Alan, and Gregory, Tremaine. 2019. "Mitigating Tropical Forest Fragmentation with Natural and Semi-Artificial Canopy Bridges." Diversity, 11, (4) 66. https://doi.org/10.3390/d11040066. 2019
• Gregory, Tremaine, Carrasco-Rueda, Farah, Alonso, Alfonso, Kolowski, Joseph, and Deichmann, Jessica L. 2017. "Natural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals." Scientific Reports, 7, (3892). https://doi.org/10.1038/s41598-017-04112-x. 2017
• Gregory, Tremaine, Carrasco-Rueda, Farah, Deichmann, Jessica, Kolowski, Joseph, and Alonso, Alfonso. 2017. "Primate response to natural gas pipeline construction in the Peruvian Amazon." Biotropica, 49, (2) 249–255. https://doi.org/10.1111/btp.12406. 2017
• Boyle, Sarah A., Thompson, Cynthia L., DeLuycker, Anneke, Alvarez, Silvia J., Alvim, Thiago H. G., Aquino, Rolando, Bezerra, Bruna M., Boubli, Jean P., Bowler, Mark, Caselli, Christini Barbosa, Chagas, Renata R. D., Ferrari, Stephen F., Fontes, Isadora P., Gregory, Tremaine, Haugaasen, Torbjørn, Heiduck, Stefanie, Hores, Rose, Lehman, Shawn, de Melo, Fabiano R., Moreira, Leandro S., Moura, Viviane S., Nagy-Reis, Mariana, Palacios, Erwin, Palminteri, Suzanne, Peres, Carlos A. et al. 2016. "Geographic comparison of plant genera used in frugivory among the pitheciids Cacajao, Callicebus, Chiropotes, and Pithecia." American Journal of Primatology, 78, (5) 493–506. https://doi.org/10.1002/ajp.22422. 2016
• Gregory, Tremaine and Bowler, Mark. 2016. "Male-male affiliation and cooperation characterize the social behavior of the large-bodied pitheciids, Chiropotes and Cacajao: A review." American Journal of Primatology, 78, (5) 550–560. https://doi.org/10.1002/ajp.22404. 2016
• Shaffer, Christopher A., Barnett, Adrian A., Gregory, Tremaine, de Melo, Fabiano, Moreira, Leandro, Alvim, Thiago H. G., Moura, Viviane S., Filó, Anderson, Cardoso, Tatiane, Port-Carvalho, Marcio, dos Santos, Ricardo Rodrigues, and Boyle, Sarah A. 2016. "Mixed-species associations in cuxiús (genus Chiropotes)." American Journal of Primatology, 78, (5) 583–597. https://doi.org/10.1002/ajp.22433. 2016
• Gregory, Tremaine, Lunde, Darrin, Zamora-Meza, Hugo, and Carrasco-Rueda, Farah. 2015. "Records of Coendouichillus (Rodentia, Erethizontidae) from the Lower Urubamba Region of Peru." ZooKeys, (509) 109–121. https://doi.org/10.3897/zookeys.509.9821. 2015
• Gregory, Tremaine, Rueda, Farah Carrasco, Deichmann, Jessica L., Kolowski, Joseph, and Alonso, Alfonso. 2014. "Arboreal camera trapping: Taking a proven method to new heights." Methods in Ecology and Evolution, 5, (5) 443–451. https://doi.org/10.1111/2041-210X.12177. 2014
• Gregory, Tremaine, Mullett, Amanda, and Norconk, Marilyn A. 2014. "Strategies for navigating large areas: A GIS spatial ecology analysis of the bearded saki monkey, Chiropotes sagulatus, in Suriname." American Journal of Primatology, 76, (6) 586–595. https://doi.org/10.1002/ajp.22251. 2014
• Gregory, Tremaine and Norconk, Marilyn A. 2013. "Bearded saki socioecology: affiliative male–male interactions in large, free-ranging primate groups in Suriname." Behaviour, 1–41. https://doi.org/10.1163/1568539X-00003138. 2013
• Gregory, Tremaine, Carrasco Rueda, F., Deichmann, Jessica L., Kolowski, Joseph, and Alonso, Alfonso. 2012. "Primates of the Lower Urubamba Region, Peru, with comments on other mammals." Neotropical Primates, 19, (1) 16–23. 2012

Book

• Gregory, Tremaine, Carrasco Rueda, Farah, Deichmann, Jessica L., Kolowski, Joseph, Costa Faura, Marcel, Dallmeier, Francisco, and Alonso, Alfonso. 2013. Methods To Establish Canopy Bridges To Increase Natural Connectivity in Linear Infrastructure Development. Society of Petroleum Engineers. In SPE Latin-America Conference on Health, Safety, Environment & Social Responsibility in the Oil and Gas Industry, Jun 26 - 27, 2013. 2013

Chapter

• Gregory, Tremaine. 2017. "Home Range Estimation." In The International Encyclopedia of Primatology. 1–4. Hoboken, New Jersey: John Wiley & Sons. (https://doi.org/10.1002/9781119179313), https://doi.org/10.1002/9781119179313.wbprim0177. 2017
• Gregory, Tremaine and Norconk, Marilyn A. 2013. "Comparative socioecology of sympatric, free-ranging white-faced and bearded saki monkeys in Suriname: preliminary data." In Evolutionary Biology and Conservation of Titis, Sakis and Uacaris. 285–294. Cambridge University Press. In Cambridge Studies in Biological and Evolutionary Anthropology. 2013