Education
Ph.D., Tropical Zoology, University of Aberdeen
B.Sc. Zoology, University of Bristol
Dr. Jenny Daltry works chiefly on the restoration of island ecosystems and recovery of endangered species. Though perhaps best known for leading programs to save critically threatened reptiles, including Siamese Crocodiles, Antiguan Racers and Union Island Geckos, she has worked on a wide variety of animal and plant taxa in over 30 countries. Prior to joining Global Wildlife Conservation, Dr. Jenny Daltry was Senior Conservation Biologist at Fauna & Flora International and for many years served as director of operations in the Caribbean and Cambodia, where she received a knighthood for her services to conservation.
Jenny began her career as a volunteer, working in zoos and supporting research and conservation of India’s Andaman and Nicobar Islands. Her doctoral research took her to Southeast Asia, where she studied the ecology of venomous snakes before embarking on biodiversity inventories and working with Indigenous communities to preserve critical habitats and improve livelihoods. Jenny’s interest in ecosystem restoration began in 1995 upon seeing the devastating impacts that non-native rats have on Caribbean biodiversity. Since then, she has led projects to successfully eradicate harmful invasive animals and plants from nearly 30 islands, catalysing the rapid recovery of native species and ecosystems. Jenny is particularly interested in how restoring healthy, functioning ecosystems, both inside and outside of protected areas, can strengthen the resilience of island people and wildlife to climate change.
Dr. Daltry is a strong believer in responding to locally identified needs and encouraging and enabling local community groups and government agencies to raise funds and run their own custom-designed conservation programs. She is an active member of six IUCN SSC Specialist Groups, an Adventure Ambassador for GREAT Britain and North Ireland campaign, and a National Geographic Emerging Explorer.
Publications
Daltry JC (2025). Editorial—the big difference with small islands. Oryx, in press.
Burt AJ, Harper G, Ringler D, Cagnato M, Turnbull LA, Russell JC, Samaniego A, Collier T, Steibl S, Carr P, Daltry JC, Constance A, Fleischer-Dogley F, Bunbury N (2025). Small step in tech needed to upscale tropical island eradications. Biological Invasions 27(7): 163.
Soanes LM, Carter D, Braden Symes L, Daltry JC, Klinck H, Lloyd C, Mukhida F (2023). Passive acoustic monitoring of birds in the Lesser Antilles—a useful tool for monitoring remote sites? Journal of Caribbean Ornithology 36: 62–74.
Van den Burg MP, Wasilewski JA, Thorpe R, Debrot AO, Daltry JC, Angin B, Boman EM, Brannon L, Corbett EA, Horrocks JA, Mukhida F, Paranthoën N, Pascoe NK, Verhoeven A, Yokoyama M (2023). The threat of Peters's Rock Agama (Agama picticauda) to reptile diversity across the Lesser Antilles. Animal Conservation. doi:10.1111/acv.12889
Appleton MR, Alvarez M, Barborak JR, Chapple R, Courtiol A, Daltry JC, de Bruin L, Emerton L, Hadley NP, Jordan CA, Long B, Rousset F, Singh R, Slade J, Sterling EJ, Tilker A, Warr L, Wessling EG (2022). Protected area personnel and ranger numbers are inadequate to deliver global expectations. Nature Sustainability 5: 1100–1110.
Daltry JC (2022). Conserving the reptiles of the Lesser Antilles. In: Thorpe RS (ed.) Reptiles of the Lesser Antilles. Edition Chimaira, Frankfurt. pp. 544–572.
van den Burg M, Vique Bosquet IM, Daltry JC (2022). Urgent international attention needed to tackle illegal pet trade in Caribbean iguana populations. Conservation 2022, 2: 244–247.
Breuil M, Schikorski D, Vuillaume B, Krauss U, Daltry JC, Gaymes G, Gaymes J, Bech N, Jelic MJ, Grandjean F (2022). Iguana insularis (Iguanidae) from the Southern Lesser Antilles: an endemic lineage endangered by hybridization. ZooKeys 1086: 137–161.
Appleton MR, Barborak JR, Daltry JC, O'Connell M, Sparkes E, Owen N, Singh R, Sterling E (2022). How should conservation be professionalised? Oryx 56: 654–663. doi:10.1017/S0030605321000594
Daltry JC (2021). Removing aliens triggers rapid recovery on the Caribbean's "highest priority island". Darwin Initiative Newsletter, March 2021: 7–8.
Grace MK, Resit Akçakaya HR, Bull JW, Carrero C, Davies K, Hedges S, Hoffmann M, Long B, Lughadha EMN, Martin GM, Pilkington F, Rivers MC, Young RP, Milner-Gulland EJ, Daltry JC et al. (2021). Building robust, practicable counterfactuals and scenarios to evaluate the impact of species conservation interventions using inferential approaches. Biological Conservation 261: 109259. doi:10.1016/j.biocon.2021.109259
Durso AM, Ruiz de Castañeda R, Montalcini C, Mondardini MR, Fernandez-Marques JL, Grey F, Müller MM, Uetz P, Marshall BM, Gray RJ, Smith CE, Becker D, Pingleton M, Louies J, Abegg AD, Akuboy J, Alcoba G, Daltry JC et al. (2021). Citizen science and online data: opportunities and challenges for snake ecology and action against snakebite. Toxicon X. doi:10.1016/j.toxcx.2021.100071
van den Burg MP, Daltry JC, Angin B, Boman E, Brisbane JLK, Collins K, Haakonsson JE, Hill A, Horrocks JA, Mukhida F, Providence F, Questel K, Ramnanan N, Steele S, Vique Bosquet IM, Knapp CR (2021). Biosecurity for humanitarian aid. Science 372: 581–582.
Blades DC, Horrocks JA, Daltry JC (2020). The Barbados leaf-toed gecko (Phyllodactylus pulcher): between a rock and a hard place. Journal of the Barbados Museum and Historical Society 66: 12–20.
Donihue CM, Daltry JC, Challenger S, Losos J, Herrel A (2020). Population increase and changes in behavior and morphology in the Redonda ground lizard (Pholidoscelis atratus) following the successful removal of alien rats and goats. Integrative Zoology 2020: 1–11.
Pounder KC, Mukhida F, Brown RP, Carter D, Daltry JC, Fleming T, Goetz M, Hughes G, Questel K, Saccheri IJ, Williams R, Soanes LM (2020). Testing for hybridisation of the Critically Endangered Iguana delicatissima on Anguilla to inform conservation efforts. Conservation Genetics 21: 405–420.
Hayward MW, Callen A, Allen BL, Ballard G, Broekhuis F, Bugir C, Clarke RH, Clulow J, Clulow S, Daltry JC, Davies-Mostert HT, Fleming PJS, Greene HW, Griffin AS, Howell LG, Kerley GIH, Klop-Toker K, Legge S, Major T, Meyer N, Montgomery RA, Moseby K, Parker DM, Périquet S, Read J, Scanlon R, Seeto R, Shuttleworth C, Somers MJ, Tamessar C, Tuft K, Upton R, Valenzuela-Molina M, Wayne A, Witt RR, Wüster W (2020). Envisioning the future with 'compassionate' conservation: an ominous projection for native wildlife and biodiversity. Biological Conservation 241: 108365.
Ortiz-Catedral L, Christian E, Skirrow M, Rueda D, Sevilla C, Kumar K, Reyes E, Daltry JC (2019). Diet of six Galapagos terrestrial snakes (Pseudalsophis spp.) inferred from fecal samples. Herpetology Notes 12: 701–704.
Hayward MW, Callen A, Allen BL, Ballard G, Broekhuis F, Bugir C, Clarke RH, Clulow J, Clulow S, Daltry JC, Davies-Mostert HT, Fleming PJS, Greene HW, Griffin AS, Howell LG, Kerley GIH, Klop-Toker K, Legge S, Major T, Meyer N, Montgomery RA, Moseby K, Parker DM, Périquet S, Read J, Scanlon R, Seeto R, Shuttleworth C, Somers MJ, Tamessar C, Tuft K, Upton R, Valenzuela-Molina M, Wayne A, Witt RR, Wüster W (2019). Should the compassionate tail wag the conservation dog? Conservation Biology 33: 760–768.
Williams R, Daltry JC, Morton MN, Toussaint A (2019). The distribution of non-native Anolis lizards on Saint Lucia, Lesser Antilles. Caribbean Journal of Science 49: 269–277.
Breuil M, Vuillaume B, Schikorski D, Krauss U, Morton MN, Corry E, Haynes P, Daltry JC, Gaymes G, Bech N, Jelic MJ, Grandjean F (2019). A story of nasal horns: new subspecies of Iguana Laurenti, 1768 (Squamata, Iguanidae) in Saint Lucia, Saint Vincent and the Grenadines, and Grenada (Southern Lesser Antilles) and their implication for the taxonomy of the genus Iguana. Zootaxa 4608: 201–232.
Bell EA, Daltry JC, Mukhida F, Connor R, Varnham KJ (2019). The eradication of black rats (Rattus rattus) from Dog Island, Anguilla, using ground-based techniques. In: Veitch CR, Clout MN, Martin AR, Russell JC, West CJ (eds.) Island Invasives: Scaling Up to Meet the Challenge. Occasional Paper SSC no. 62. IUCN, Gland, Switzerland. pp. 162–166.
Daltry JC (2018). Caribbean islands—Islas del Caribe. In: Holmes ND, Langrand O, Mittermeier RA, Rylands AB, Brooks T, Spatz DR, Russell JC, Sechrest W, Mendez-Sanchez F (eds.) Islands—Islas. Earth in Focus Inc., Qualicum Beach, Canada. pp. 177–189.
Daltry JC, Bell EA (2018). Can brodifacoum save endangered species? Recent experiences from the West Indies. Outlooks on Pest Management 18: 80–85.
Neang T, Chan S, Chhin S, Samorn V, Poyarkov NA, Stephens J, Daltry JC, Stuart BL (2017). First records of three snake species from Cambodia. Cambodian Journal of Natural History 2017: 142–146.
Appleton MR, Toussaint A, Daltry JC (2017). From forestry to protected area and ecosystem management: organisational change in Saint Lucia, West Indies. Parks 23.2: 51–62.
Daltry JC, Lawrence SN, Lindsay K, Morton MN, Otto A, Thibou A (2017). Successful reintroduction of Antiguan racers Alsophis antiguae to offshore islands in Antigua, West Indies. International Zoo Yearbook 51: 1–10.
Williams R, Ross T, Morton MN, Daltry JC, Isidore L (2016). Update on the natural history and conservation status of the Saint Lucia racer snake, Erythrolamprus ornatus Garman, 1887 (Squamata, Dipsadidae). Herpetology Notes 9: 157–162.
Daltry JC, Langelet E, Solmu GC, van der Ploeg J, van Weerd M, Whitaker R (2016). Successes and failures of crocodile harvesting strategies in the Asia Pacific. In: Aguirre AA, Sukumar R (eds.) Tropical Conservation. Oxford University Press, New York. pp. 345–362.
Sam H, Hor L, Nhek R, Sorn P, Heng S, Simpson B, Starr A, Brook S, Frechette JL, Daltry JC (2015). Status, distribution and ecology of the Siamese crocodile Crocodylus siamensis in Cambodia. Cambodian Journal of Natural History 2015: 153–164.
Lawrence SN, Daltry JC (2015). Antigua announces its 15th island cleared of invasive alien mammals. Oryx 49: 389.
Daltry JC, Prospere A, Toussaint A, Gengelbach J, Morton MN (2015). Making business scents: how to sustainably harvest incense from the globally threatened lansan tree Protium attenuatum. Oryx 49: 431–441. doi:10.1017/S003060531400115X
Gill D, Daltry J (2015). How to Make a Monitoring Plan for Threatened Tree Species. Global Trees Campaign Brief #3. Fauna & Flora International, Cambridge, UK.
Daltry JC, James KJ, Otto A, Ross TN (2012). Evidence that eradicating black rats has boosted the recovery of rare reptiles and seabirds on Antiguan islands. In: Vernier JL, Burac M (eds.) Biodiversité Insulaire: la Flore, la Faune et l'Homme dans les Petites Antilles. Direction de l'Environnement, de l'Aménagement et du Logement de Martinique et Université des Antilles et de la Guyane, France. pp. 141–145.
Bohm M, Daltry JC et al. (2012). The conservation status of the world's reptiles. Biological Conservation 157: 372–385.
Neang T, Grismer LL, Daltry JC (2012). A new species of kukri snake (Serpentes: Colubridae: Oligodon) from the Phnom Samkos Wildlife Sanctuary, in the northwestern Cardamom Mountains, Cambodia. Zootaxa 3388: 41–55.
Daltry JC, Fisher M, Furey NM (2011). How to write a winning paper. Cambodian Journal of Natural History 2012: 97–100.
Daltry JC (2011). An introduction to the herpetofauna of Antigua, Barbuda and Redonda, with some conservation recommendations. In: Hailey A, Wilson BS, Horrocks JA (eds.) Conservation of Caribbean Island Herpetofaunas. Brill, Leiden. pp. 17–51.
Daltry JC (2011). Editorial: finders, keepers. Cambodian Journal of Natural History 2011: 77–78.
Daltry JC, Starr A (2010). Development of a re-introduction and reinforcement programme for Siamese crocodiles in Cambodia. In: Soorae P (ed.) Global Re-introduction Perspectives: 2010. IUCN/SSC Re-introduction Specialist Group and Environment Agency, Abu Dhabi. pp. 118–123.
Daltry JC, Anthonyson DA, Morton MN (2010). Re-introduction of the Antiguan racer to offshore islands of Antigua, West Indies. In: Soorae P (ed.) Global Re-introduction Perspectives: 2010. IUCN/SSC Re-introduction Specialist Group and Environment Agency, Abu Dhabi. pp. 98–103.
Starr A, Sam H, Daltry J (2010). 2010 monitoring and nest surveys reveal status and threats of community-protected Crocodylus siamensis sub-populations in Cambodia. Crocodile Specialist Group Newsletter 29: 7–9.
Starr A, Daltry JC, Nhek R (2010). DNA study reveals C. siamensis at the Phnom Tamao Wildlife Rescue Centre, Cambodia. Newsletter of the IUCN/SSC Crocodile Specialist Group 28: 5–7.
Oum S, Hor L, Sam H, Sonn P, Simpson B, Daltry JC (2009). A comparative study of incentive-based schemes for Siamese crocodile Crocodylus siamensis conservation in the Cardamom Mountains, Cambodia. Cambodian Journal of Natural History 2009: 40–57.
Daltry JC (2008). Editorial: Cambodia's biodiversity revealed. Cambodian Journal of Natural History 2008: 3–5.
Bradfield D, Daltry JC (2008). Progress in breaking the link between narcotics crime and rainforest loss in Cambodia. Oryx 42: 481.
Daltry JC (2007). An introduction to the herpetofauna of Antigua, Barbuda and Redonda, with some conservation recommendations. Journal of Applied Herpetology 4: 97–130.
Grismer LL, Neang T, Chav T, Grismer JL, Wood PL, Youmans TM, Ponce A, Daltry JC, Kaiser H (2007). The herpetofauna of the Phnom Aural Wildlife Sanctuary and checklist of the herpetofauna of the Cardamom Mountains, Cambodia. Hamadryad 31: 216–241.
Daltry JC, Fox M, Appleton MR (2006). Green Development: Guidelines for Sustainable Development in Protected Areas. Cardamom Mountains Wildlife Sanctuaries Project: Ministry of Environment and Fauna & Flora International, Phnom Penh, Cambodia.
Daltry JC (2006). Reintroduction of the critically endangered Antiguan racer Alsophis antiguae to Green Island, Antigua. Conservation Evidence 3: 36–38.
Daltry JC (2006). The reintroduction of the critically endangered Antiguan Racer Alsophis antiguae, to Rabbit Island, Antigua. Conservation Evidence 3: 33–35.
Daltry JC (2006). The effect of black rat Rattus rattus control on the population of the Antiguan racer snake Alsophis antiguae on Great Bird Island, Antigua. Conservation Evidence 3: 30–32.
Daltry JC (2006). Control of the black rat Rattus rattus for the conservation of the Antiguan racer Alsophis antiguae, on Great Bird Island, Antigua. Conservation Evidence 3: 28–29.
Daltry JC, Chheang D, Em P, Poeung M, Sam H, Sorn P, Tan T, Simpson BK (2003). Status of the Siamese Crocodile in the Central Cardamom Mountains, Southwest Cambodia. Cambodian Crocodile Conservation Programme: Fauna & Flora International and Department of Forestry and Wildlife, Phnom Penh.
Daltry JC, Traeholt C (compilers) (2003). Biodiversity Assessment of the Southern Cardamoms and Botum-Sakor Peninsula. WildAid: Cambodia Program, and Department of Forestry and Wildlife, Phnom Penh.
Ohler A-M, Swan SR, Daltry JC (2002). The amphibian fauna of the Cardamom Mountains, Southwest Cambodia: a report on the first surveys for amphibians in Cambodia with a description of three new species. Raffles Bulletin of Zoology 50: 465–481.
Daltry JC, Wüster W (2002). Description of a new species of Lycodon from Cambodia. Herpetologica 58: 498–504.
Daltry JC (2002). Surveys of Siamese crocodiles (Crocodylus siamensis) in the Cardamom Mountains of Cambodia. In: Ma Fu (ed.) Status Quo and Future of Conservation for Chinese Alligator and Crocodiles in the World. IUCN/SSC Crocodile Specialist Group. pp. 326–327.
Swan SR, Daltry JC (2002). Reptiles and amphibians. In: Daltry JC (ed.) Social and Ecological Surveys of Phnom Aural Wildlife Sanctuary, Cardamom Mountains, Cambodia. Cambodia Programme, Fauna & Flora International, and the Ministry of Environment, Phnom Penh. pp. 23–40.
Daltry JC, Tith B (2002). Conservation assessment of the Siamese crocodile Crocodylus siamensis in the Veal Veng wetland. In: Daltry JC (ed.) Social and Ecological Surveys of the Veal Veng Wetland, Cardamom Mountains, Cambodia. Cambodia Programme, Fauna & Flora International, Phnom Penh. pp. 21–33.
Daltry JC (2001). Saving Siamese crocodiles in Cambodia. The Conservationist 6: 26–27.
Daltry JC, Bloxam Q, Cooper G, Day ML, Hartley J, Henry M, Lindsay K, Smith BE (2001). Five years of conserving the 'world's rarest snake', the Antiguan racer Alsophis antiguae. Oryx 35: 119–127.
Daltry JC, Momberg F (2000). First biological assessment of Cardamom Mountains, Southwestern Cambodia, reveals a wealth of wildlife. Oryx 34: 227–228.
Daltry JC, Chheang D (2000). Siamese crocodiles discovered in the Cardamom Mountains. Newsletter of the IUCN/SSC Crocodile Specialist Group 19: 7–8.
Daltry JC, Momberg F (eds.) (2000). Cardamom Mountains Biodiversity Survey 2000. Fauna & Flora International, Cambridge, UK. 254pp.
Swan SR, Daltry JC (2000). Amphibians. In: Daltry JC, Momberg F (eds.) Cardamom Mountains Biodiversity Survey 2000. Fauna & Flora International, Cambridge, UK. pp. 111–120.
Daltry JC, Chheang D (2000). Reptiles. In: Daltry JC, Momberg F (eds.) Cardamom Mountains Biodiversity Survey 2000. Fauna & Flora International, Cambridge, UK. pp. 98–110.
Daltry JC (1999). Montserrat's mountain chickens. International Zoo News 46 (April/May).
Daltry JC, Gray G (1999). Effects of volcanic activity on the endangered mountain chicken frog (Leptodactylus fallax). Froglog 32: 1–2.
Wüster W, Daltry JC, Thorpe RS (1999). Can diet explain intraspecific venom variation? Toxicon 37: 253–258.
Underwood G, Horrocks JA, Daltry JC (1999). A new snake from Barbados. Journal of the Barbados Museum and Historical Society 45: 67–75.
Daltry JC, Ross T, Wüster W, Thorpe RS (1998). Evidence that humidity influences snake activity: a radio telemetry study of the Malayan pit viper Calloselasma rhodostoma. Ecography 21: 25–34.
Daltry JC, Wüster W, Thorpe RS (1998). Intraspecific variation in the feeding ecology of the crotalid snake Calloselasma rhodostoma in Southeast Asia. Journal of Herpetology (June issue).
Varnham K, Ross T, Daltry J, Day M, Cooper G, Lindsay K (1998). Recovery of the Antiguan racer. Aliens (Journal of the IUCN/SSC Invasive Species Specialist Group) 8: 21.
Daltry JC, Martin GN (1997). Rediscovery of the black narrow-mouthed frog, Melanobatrachus indicus Beddome, 1878. Hamadryad 22: 57–58.
Daltry JC (1997). Reptile and amphibian variants: colors, patterns and scales. Hamadryad 22: 65–66.
Daltry JC, Wüster W, Thorpe RS (1997). The role of ecology in determining venom variation in the Malayan pitviper, Calloselasma rhodostoma. Symposium Zoological Society of London 70: 155–171.
Daltry JC, Wüster W, Thorpe RS (1996). Diet and snake venom evolution. Nature 379: 537–540.
Daltry JC, Ponnundurai G, Shin CK, N-H Tan, Thorpe RS, Wüster W (1996). Electrophoretic profiles and biological activities: intraspecific variation in the venom of the Malayan pit viper (Calloselasma rhodostoma). Toxicon 34: 67–79.
Day M, Daltry J (1996). Rat eradication to save the Antiguan racer. Aliens (Journal of the IUCN/SSC Invasive Species Specialist Group) 3: 14–15.
Henderson RW, Powell R, Day ML, Daltry JC (1996). Alsophis antiguae. In: Wilson LD (ed.) Catalogue of American Amphibians and Reptiles. Society for the Study of Amphibians and Reptiles.
Thorpe RS, Malhotra A, Black H, Daltry JC, Wüster W (1996). Relating geographic patterns to phylogenetic processes. In: Harvey PH, Leigh Brown AJ, Maynard Smith J (eds.) New Uses for New Phylogenies. Oxford University Press.
Daltry JC, Wüster W, Thorpe RS (1995). The role of ecology in determining venom variation in the Malayan pit viper, Calloselasma rhodostoma. In: Venomous Snakes: Ecology, Evolution and Snakebite, Symposium of the Zoological Society of London: Abstracts. Zoological Society of London, London.
Thorpe RS, Malhotra A, Black H, Daltry JC, Wüster W (1995). Relating geographic pattern to phylogenetic process. Philosophical Transactions of the Royal Society B 349: 61–68.
Daltry JC (1992). The social hierarchy of the water monitor lizard, Varanus salvator. Hamadryad 16: 10–20.
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