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Dr Ryan Witt

Dr Ryan Witt

Postdoctoral Researcher

School of Environmental and Life Sciences (Environmental Science and Management)

Pioneering drone technology to protect Australia’s wildlife

Conservation scientist Dr Ryan Witt and his team are tracking and mapping cryptic species—from using thermal drones to locate koalas and greater gliders to tagging squirrel gliders. Their work is advancing wildlife protection and helping guide more informed environmental decisions.

Dr Ryan Witt

Making wildlife count: drones, data and a clearer path for conservation

Ryan is a conservation scientist driven by one key goal—ensuring Australia’s threatened wildlife is seen, counted and considered in the decisions that shape their future.

As a researcher at the University of Newcastle, Ryan leads a small team of early career researchers developing cutting-edge drone-based monitoring tools that make it harder for species to be overlooked—and easier for governments, industry and communities to make informed, accountable choices.

“If wildlife isn’t showing up in the data, it’s not showing up in the decisions,” Ryan says.

“That’s why our work is about improving visibility, strengthening the evidence—and, hopefully, helping keep the process surrounding wildlife impacts honest.”

A childhood curiosity that never left

Really, Ryan says, you can blame his parents.

Growing up in the suburbs of Newcastle, his mum nurtured his curiosity by taking him to wildlife parks and encouraging hands-on experiences with native animals like wallabies. His dad took him bushwalking through urban reserves like Glenrock, helping him notice the quiet, everyday wonders of the bush. He also spent countless evenings feeding possums on the back deck.

“They’re the reason I do what I do,” he says.

“They gave me the chance to connect with nature, and that’s what set this whole journey in motion.”

That early passion led Ryan into a PhD in marsupial reproductive biology, working on assisted breeding techniques for native species. But over time, his focus shifted toward the field—where habitat loss and landscape change demanded faster, scalable tools to detect and protect species before they disappear.

Drones that bring wildlife into focus

Since 2019, Ryan has led the development of a thermal drone survey method to detect and monitor hard-to-find species like koalas, greater gliders and squirrel gliders.

These animals are especially vulnerable to land clearing due to their site fidelity—their tendency to return to the same trees year after year.

“If those trees go, often so do they,” Ryan says.

The method Ryan’s team developed enables real-time detection using spotlight-equipped drones, and supports population estimates across entire landscapes—a level of accuracy and scale rarely possible with traditional methods.

An early proof-of-concept for detecting koalas with drones was co-developed with the . But the operational method used today—including real-time detection and population estimation—was developed and field-tested by Ryan’s team, with core support from , and further support from , , , , and .

From better data to better decisions

Now in use across NSW, the method is referenced in key frameworks like the and the . What sets it apart is its ability to directly detect animals at scale—providing reliable data to inform planning, development and conservation efforts.

“It’s not about stopping any particular project—it’s about making sure decisions are made with a more complete picture,” Ryan says.

“If the data is strong and consistent, the decisions that follow are hopefully better for wildlife.”

Ryan’s team also tracks species like squirrel gliders and koalas to better understand how they use fragmented habitats. By combining GPS collars, ecological modelling, nest box monitoring and genetic tools, they’re gathering vital data on movement, health, and population structure—insights that help guide conservation actions from the urban forests of Newcastle to the national parks of NSW.

Collaboration with purpose

While Ryan leads the research team, he emphasises the role of his team and their shared commitment.

“This is definitely not a solo effort, I’m incredibly proud of the early career scientists I work with,” he says.

“Their expertise, creativity, and care for the work has taken this from an idea to something that’s making real change.”

Working across disciplines, the team brings together expertise in ecology, spatial modelling, drone operations and data science—combining practical fieldwork with technical innovation.

The small team collaborates widely—with government departments, environmental NGOs, industry and community conservation groups—ensuring the science is accessible, scalable and useful across sectors.

Keeping wildlife in the frame

At its heart, Ryan’s work is about giving wildlife a stronger voice in the decisions that affect them. It’s about making threatened species impossible to overlook.

“We’re working to make sure species don’t disappear because no one knew they were there,” he says.

“Good data keeps the conversation honest—and helps everyone do better.”

From backyard possums to conservation policy, Dr Ryan Witt and his team are using drone technology and ecological data to build a future where Australia’s iconic wildlife are seen, valued, and protected—before it’s too late.

Dr Ryan Witt

Pioneering drone technology to protect Australia’s wildlife

As a researcher at the University of Newcastle, Ryan leads a small team of early career researchers developing cutting-edge drone-based monitoring tools that make it harder for species to be overlooked—and easier for governments, industry and communities to make informed, accountable choices.

Read more

Career Summary

Biography

Dr Ryan Witt is a wildlife ecologist specialising in the use of drone technology and ecological data to improve how Australia’s threatened species are detected, monitored, and protected. His work focuses on developing tools that make native wildlife more visible in the systems that shape conservation, development, and land management decisions.

Ryan leads a growing research program at the University of Newcastle, where he and his team develop and refine thermal drone-based monitoring methods for koalas, gliders, and other cryptic marsupials. His work spans from urban reserves in Newcastle to landscape-scale surveys across national parks in New South Wales—delivering scalable tools that are fast, accurate, and transparent.

A Newcastle local, Ryan is committed to building research partnerships that not only protect local wildlife but also contribute to broader national strategies for biodiversity conservation.

Research Interests and Expertise

Ryan’s research sits at the intersection of technology, ecology, and applied conservation. He is best known for developing a thermal drone survey method that allows for real-time detection and population estimation of species like koalas, greater gliders and squirrel gliders—many of which are vulnerable to habitat loss due to their strong site fidelity. His method is now referenced in state frameworks including the NSW Koala Strategy and the Biodiversity Assessment Method.

Ryan frequently collaborates across sectors—working with government agencies, industry, NGOs, and community organisations. His partnerships have included WWF-AustraliaTaronga Conservation Society Australia, the FAUNA Research AllianceHunter WaterKoala Conservation Australia, the NSW Department of Climate Change, Energy, the Environment and WaterNSW Local Land ServicesCSIRONSW National Parks and Wildlife Service, and local governments such as Newcastle City CouncilPort Stephens Council, and MidCoast Council.

He has also worked closely with Indigenous organisations including Taree Indigenous Development and Employment (TIDE), the Miromaa Aboriginal Language and Technology Centre, and the Karuah Local Aboriginal Land Council.

Ryan also leads GPS-collar tracking studies focused on low-density koala populations. These projects aim to evaluate movement ecology, health, longevity, and population dynamics in koala populations under threat—providing much-needed insights for planning interventions and assessing population viability.

In addition to koalas, his team monitors squirrel gliders using a combination of nest boxes, pipe traps, GPS tracking, and genetic sampling, helping to map their urban range, assess population size, and support wildlife corridor planning.

Although trained in marsupial reproductive biology, Ryan now spends the majority of his time focused on field-based ecological solutions. His PhD research addressed ovulation timing challenges in marsupial breeding programs and continues to inform the reproductive science underpinning assisted breeding and genome storage initiatives.

Teaching and Communication


Ryan is a skilled science communicator and university educator. He excels at engaging diverse audiences—from undergraduate classrooms to national audiences—by making science clear, relevant, and compelling.

He has featured in print, radio and television media, including coverage by ABC Science, Triple J - Hack, The Conversation, and National and International radio and news outlets, where he speaks on topics such as drone technology, koala conservation, and land-use transparency.

At the University of Newcastle, Ryan has taught across a wide range of courses across Science, Environmental Science, Environmental Management and Ecology for more than 10 years. He specialises in workshop-based and flipped classroom models and has designed and delivered flagship courses. 

He is particularly passionate about preparing students for life beyond university by connecting them with industry professionals, local councils, NGOs, and research organisations—building both technical capability and applied confidence.

Contribution to University Sport

Ryan was awarded a University Colour in the Sport of Tennis for his administrative contribution to the development and maintenance of the between 2011 and 2018. 

Colours are awarded to those that have made an outstanding contribution to the organisation and administration of University sport over a period of not less than three full years. This is a highly prized award which recognises protracted contribution to University sport above and beyond the diligent completion of administrative responsibilities of elected or appointed office.


Qualifications

  • Doctor of Philosophy, University of Newcastle
  • Bachelor of Social Science (Recreation & Tourism), University of Newcastle
  • Bachelor of Environmental Science and Management, University of Newcastle
  • Bachelor of Environmental Science and Management (Honours), University of Newcastle

Keywords

  • Applied Conservation
  • Drone
  • Greater Glider
  • Koala
  • Marsupials
  • RPAS
  • Reproduction
  • Squirrel Glider
  • Thermal Imaging
  • Wildlife Ecology
  • Wildlife Management
  • Wildlife Monitoring

Languages

  • English (Mother)

Fields of Research

Code Description Percentage
410401 Conservation and biodiversity 60
310903 Animal developmental and reproductive biology 5
410404 Environmental management 35

Professional Experience

UON Appointment

Title Organisation / Department
Lecturer University of Newcastle
School of Environmental and Life Sciences
Australia
Postdoctoral Researcher University of Newcastle
School of Environmental and Life Sciences
Australia
Casual Academic University of Newcastle
School of Environmental and Life Sciences
Australia

Academic appointment

Dates Title Organisation / Department
29/1/2019Ìý-Ìý Honorary Lecturer School of Environmental and Life Sciences, University of Newcastle
Australia

Membership

Dates Title Organisation / Department
23/11/2021Ìý-Ìý Scientific Associate Taronga Conservation Society, Australia
Australia
25/2/2021Ìý-Ìý25/2/2024 Australasian board member of the Companion Animals and Non-Domestic Endangered Species Specialist Group International Embryo Technology Society
United States
24/9/2020Ìý-Ìý Member Royal Zoological Society of NSW

Awards

Award

Year Award
2020 Collaboration Excellence Award
School of Environmental and Life Sciences, University of Newcastle
2017 University Colour (Tennis)
NUSport Board
2014 Faculty Medal 2013
Faculty of Science and IT, University of Newcastle
2014 University Medal in Environmental Science & Management 2013
Faculty of Science and IT, University of Newcastle

Teaching Award

Year Award
2019 Collaboration Excellence Team Award: in the implementation and delivery of SCIE1001 and SCIE1002
ÁñÁ«³ÉÈËappÏÂÔØ of Newcastle

Teaching

Code Course Role Duration
ENVS3001 Integrated Impact Assessment
School of Environmental and Life Sciences, Faculty of Science, The university of Newcastle, Australia
Tutor 27/2/2017 - 2/6/2017
SCIE1003 Advanced Scientific Thinking
College of Engineering, Science and Environment, University of Newcastle
Workshop Facilitator 24/2/2020 - 30/6/2025
ENVS1000 Environmental Sustainability Explained
School of Environmental and Life Sciences, Faculty of Science, The university of Newcastle, Australia
Online Tutor 25/2/2019 - 7/6/2019
BIOL1003 Professional Skills for the Biological Sciences
Faculty of Science | University of Newcastle
Laboratory Demonstrator 30/7/2018 - 9/11/2018
SCIE1001 Professional Scientific Thinking
School of Environmental and Life Sciences, University of Newcastle
Workshop Demonstrator (Flipped Classroom) 25/2/2019 - 13/11/2025
ENVS3002 Environmental Management Perspectives
School of Environmental and Life Sciences, Faculty of Science, The university of Newcastle, Australia

Formerly known as ENVS3002 - Applied Environmental Science

Various Duties: Blended Learning Developer; Flipped Workshop Developer/Facilitator; Co-ordinator (Shared); Industry Engagement and Field Trip Organiser; Tutor 1/7/2013 - 31/12/2020
SRMT3060 Restoration Ecology
School of Environmental and Life Sciences, Faculty of Science, The university of Newcastle, Australia
Laboratory and Field Demonstrator 25/2/2019 - 7/6/2019
ENVS2005 Management of Australian Flora
School of Environmental and Life Sciences, Faculty of Science, The university of Newcastle, Australia
Laboratory Demonstrator 24/7/2017 - 31/12/2020
ENVS6555
University of Newcastle
Course Coordinator 27/7/2022 - 1/12/2024
ENVS3003 Conservation Biology
University of Newcastle
Field Demonstrator 17/2/2020 - 27/3/2020
Indigenous Tutorial Program
Wollotuka Institute
Tutor 1/10/2020 - 31/12/2020

Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Journal article (22 outputs)

Year Citation Altmetrics Link
2025 Gibson RK, Driscoll DA, Macdonald KJ, Williamson GJ, Nolan RH, Doherty TS, Nimmo DG, Ritchie EG, Tozer M, Tasker L, Greenville A, Roff A, Callen A, Maisey A, Thomsen A, Arriaga-Jimenez A, Foster A, Hewitt A, Gilpin AM, Denham A, Stauber A, Mackenzie B, Law B, Murray B, Hawkins B, Roberts B, Beranek CT, Dickman C, Jolly CJ, McLean C, Reid C, Dunne C, Hancock D, Keith D, Pendall E, Verhoeven E, Cook E, Spencer E, Grant F, Koehler F, Madani G, Wardle G, Linley G, Cook JM, Lemmon J, Gould J, Webb JK, Lee J, Rayment J, Marsh K, Klop-Toker K, Schweickle L, Ooi M, Beitzel M, Boer M, Hewins M, Mahony M, Green M, Letnic M, Lane M, Kelly OW, Price O, Brawata R, Bilney R, Crates R, Witt RR, Shofner R, Power SA, Wallace SL, Stock SE, Ryan SA, Pulsford S, Newsome T, Le Breton T, Allen V, Miritis V, Walker Z, 'Remotely Sensed Fire Heterogeneity and Biomass Recovery Predicts Empirical Biodiversity Responses', Global Ecology and Biogeography, 34 (2025) [C1]

Aim: To compare field-based evidence of plant and animal responses to fire with remotely sensed signals of fire heterogeneity and post-fire biomass recovery. Location: South-easte... [more]

Aim: To compare field-based evidence of plant and animal responses to fire with remotely sensed signals of fire heterogeneity and post-fire biomass recovery. Location: South-eastern Australia; New South Wales. Time Period: 2019¿2022. Major Taxa Studied: A total of 982 species of plants and animals, in eight taxonomic groups: amphibians, birds, fish, insects, mammals, molluscs, plants and reptiles. Methods: We collated 545,223 plant and animal response records from 47 field surveys of 4613 sites that focussed on areas burnt in 2019¿2020. For each site, we calculated remotely sensed signals of fire heterogeneity and post-fire biomass recovery, including the delayed recovery index. Meta-regression analyses were conducted separately for species that declined after fire (negative effect sizes) and species that increased after fire (positive effect sizes) for each buffer size (250 m, 500 m, 1 km, 1.5 km, 2 km and 2.5 km radius). Results: We found that species exposed to homogenous high-severity fire (i.e., low fire heterogeneity) were more likely to exhibit decreased abundance/occurrence or inhibited recovery. Areas with delayed recovery of biomass also had significant negative on-ground responses, with lower abundance or occurrence in areas where biomass recovery was slower. Main Conclusions: The fire heterogeneity index and the delayed recovery index are suitable for inclusion in monitoring and reporting systems for tracking relative measures over time, particularly when field survey data is not available at the landscape scales required to support reporting and management decisions. Locations with remotely sensed signals of delayed recovery should be prioritised for protection against further disturbances that may interfere with the recovery process. Research attention must next focus on how cumulative fire heterogeneity patterns of successive fires affect the post-fire recovery dynamics to further inform the application of remote sensing indicators as management tools for biodiversity conservation.

DOI
Co-authors Kaya Klop-Toker, John Gould, Chad Beranek, Alex Callen
2025 Ryan SA, Southwell DM, Beranek CT, Clulow J, Jordan NR, Witt RR, 'Estimating the landscape-scale abundance of an arboreal folivore using thermal imaging drones and binomial N-mixture modelling', Biological Conservation, 309 (2025) [C1]
DOI
Co-authors Darren Southwell, Chad Beranek, John Clulow
2024 Driscoll DA, Macdonald KJ, Gibson RK, Doherty TS, Nimmo DG, Nolan RH, Ritchie EG, Williamson GJ, Heard GW, Tasker EM, Bilney R, Porch N, Collett RA, Crates RA, Hewitt AC, Pendall E, Boer MM, Gates J, Boulton RL, Mclean CM, Groffen H, Maisey AC, Beranek CT, Ryan SA, Callen A, Hamer AJ, Stauber A, Daly GJ, Gould J, Klop-Toker KL, Mahony MJ, Kelly OW, Wallace SL, Stock SE, Weston CJ, Volkova L, Black D, Gibb H, Grubb JJ, McGeoch MA, Murphy NP, Lee JS, Dickman CR, Neldner VJ, Ngugi MR, Miritis V, Kohler F, Perri M, Denham AJ, Mackenzie BDE, Reid CAM, Rayment JT, Arriaga-Jimenez A, Hewins MW, Hicks A, Melbourne BA, Davies KF, Bitters ME, Linley GD, Greenville AC, Webb JK, Roberts B, Letnic M, Price OF, Walker ZC, Murray BR, Verhoeven EM, Thomsen AM, Keith D, Lemmon JS, Ooi MKJ, Allen VL, Decker OT, Green PT, Moussalli A, Foon JK, Bryant DB, Walker KL, Bruce MJ, Madani G, Tscharke JL, Wagner B, Nitschke CR, Gosper CR, Yates CJ, Dillon R, Barrett S, Spencer EE, Wardle GM, Newsome TM, Pulsford SA, Singh A, Roff A, Marsh KJ, Mcdonald K, Howell LG, Lane MR, Cristescu RH, Witt RR, Cook EJ, Grant F, Law BS, Seddon J, Berris KK, Shofner RM, Barth M, Welz T, Foster A, Hancock D, Beitzel M, Tan LXL, Waddell NA, Fallow PM, Schweickle L, Le Breton TD, Dunne C, Green M, Gilpin A-M, Cook JM, Power SA, Hogendoorn K, Brawata R, Jolly CJ, Tozer M, Reiter N, Phillips RD, 'Biodiversity impacts of the 2019-2020 Australian megafires', NATURE, 635, 898-+ (2024) [C1]

With large wildfires becoming more frequent1,2, we must rapidly learn how megafires impact biodiversity to prioritize mitigation and improve policy. A key challenge is to discover... [more]

With large wildfires becoming more frequent1,2, we must rapidly learn how megafires impact biodiversity to prioritize mitigation and improve policy. A key challenge is to discover how interactions among fire-regime components, drought and land tenure shape wildfire impacts. The globally unprecedented3,4 2019¿2020 Australian megafires burnt more than 10 million hectares5, prompting major investment in biodiversity monitoring. Collated data include responses of more than 2,000 taxa, providing an unparalleled opportunity to quantify how megafires affect biodiversity. We reveal that the largest effects on plants and animals were in areas with frequent or recent past fires and within extensively burnt areas. Areas burnt at high severity, outside protected areas or under extreme drought also had larger effects. The effects included declines and increases after fire, with the largest responses in rainforests and by mammals. Our results implicate species interactions, dispersal and extent of in situ survival as mechanisms underlying fire responses. Building wildfire resilience into these ecosystems depends on reducing fire recurrence, including with rapid wildfire suppression in areas frequently burnt. Defending wet ecosystems, expanding protected areas and considering localized drought could also contribute. While these countermeasures can help mitigate the impacts of more frequent megafires, reversing anthropogenic climate change remains the urgent broad-scale solution.

DOI
Citations Scopus - 3Web of Science - 3
Co-authors Alex Callen, Kaya Klop-Toker, John Gould, Shelby Ryan Uon, Chad Beranek
2023 Howell LG, Mawson PR, Comizzoli P, Witt RR, Frankham R, Clulow S, O'Brien JK, Clulow J, Marinari P, Rodger JC, 'Modeling genetic benefits and financial costs of integrating biobanking into the conservation breeding of managed marsupials', CONSERVATION BIOLOGY, 37 (2023) [C1]
DOI
Citations Scopus - 3Web of Science - 2
Co-authors Simon Clulow, John Clulow, John Rodger
2023 Howell LG, Witt RR, 'Emerging arguments for reproductive technologies in wildlife and their implications for assisted reproduction and conservation of threatened marsupials.', Theriogenology, 198 19-29 (2023) [C1]
DOI
2022 Hayward MW, Meyer NFV, Balkenhol N, Beranek CT, Bugir CK, Bushell KV, Callen A, Dickman AJ, Griffin AS, Haswell PM, Howell LG, Jordan CA, Klop-Toker K, Moll RJ, Montgomery RA, Mudumba T, Osipova L, Periquet S, Reyna-Hurtado R, Ripple WJ, Sales LP, Weise FJ, Witt RR, Lindsey PA, 'Intergenerational Inequity: Stealing the Joy and Benefits of Nature From Our Children', FRONTIERS IN ECOLOGY AND EVOLUTION, 10 (2022) [C1]
DOI
Citations Scopus - 1Web of Science - 10
Co-authors Chad Beranek, Kaya Klop-Toker, Andrea Griffin, Alex Callen, Ninon Meyer, Matthew Hayward
2022 Howell LG, Johnston SD, O'Brien JK, Frankham R, Rodger JC, Ryan SA, Beranek CT, Clulow J, Hudson DS, Witt RR, 'Modelling Genetic Benefits and Financial Costs of Integrating Biobanking into the Captive Management of Koalas', ANIMALS, 12 (2022) [C1]
DOI
Citations Scopus - 6Web of Science - 6
Co-authors John Rodger, Shelby Ryan Uon, John Clulow, Chad Beranek
2022 Howell LG, Clulow J, Jordan NR, Beranek CT, Ryan SA, Roff A, Witt RR, 'Drone thermal imaging technology provides a cost-effective tool for landscape-scale monitoring of a cryptic forest-dwelling species across all population densities', WILDLIFE RESEARCH, 49, 66-78 (2022) [C1]
DOI
Citations Scopus - 2Web of Science - 16
Co-authors John Clulow, Chad Beranek, Shelby Ryan Uon
2022 Phelan L, Baker S, Cooper G, Horton T, Whitling S, 'Putting the PASS in Class: Peer Mentors' Identities in Science Workshops on Campus and Online', JOURNAL OF PEER LEARNING, 14, 21-36 (2022) [C1]

In this paper, we analyse the introduction of peer mentors into timetabled classes to understand how in-class mentoring supports students' learning. The peer mentors in this ... [more]

In this paper, we analyse the introduction of peer mentors into timetabled classes to understand how in-class mentoring supports students' learning. The peer mentors in this study are high-achieving students who previously completed the same course and who were hired and trained to facilitate Peer Assisted ÁñÁ«³ÉÈËappÏÂÔØ Sessions (PASS). PASS gives students the opportunity to deepen their understanding through revision and active learning and are typically held outside of class time. In contrast, our trial embedded peer mentors into classes for a large (-250 students) first-year workshop-based course. We employed a participatory action research methodology to facilitate the peer mentors' cocreation of the research process. Data sources include peer mentors' journal entries, student cohort data, and a focus group with teaching staff. We found that during face-to-face workshops, peer mentors role-modelled ideal student behaviour (e.g., asking questions) rather than acting as additional teachers, and this helped students to better understand how to interact effectively in class. The identity of embedded peer mentors is neither that of teachers nor of students, and it instead spans aspects of both as described using a three-part schema comprising (i) identity, (ii) associated roles, and (iii) associated practices. As we moved classes online mid-semester in response to the COVID- 19 pandemic, mentors' identities remained stable, but mentors adjusted their associated roles and practices, including through the technical aspects of their engagement with students. This study highlights the benefits of embedding mentors in classrooms on campus and online.

Citations Scopus - 2
Co-authors Bonnie Mcbain, Liam Phelan, Paul Hodge
2021 Howell LG, Frankham R, Rodger JC, Witt RR, Clulow S, Upton RMO, Clulow J, Mawson PR, Calatayud NE, 'Integrating biobanking could produce significant cost benefits and minimise inbreeding for Australian amphibian captive breeding programs', REPRODUCTION FERTILITY AND DEVELOPMENT, 33, 573-587 (2021) [C1]
DOI
Citations Scopus - 1Web of Science - 17
Co-authors John Rodger, Simon Clulow, Rose Upton, John Clulow
2021 Witt RR, Hinds LA, Rodger JC, 'Human chorionic gonadotrophin does not induce ovulation in the tammar wallaby', Australian Mammalogy, 43 354-354 (2021) [C1]
DOI
Citations Web of Science - 1
Co-authors John Rodger
2021 Beranek CT, Roff A, Denholm B, Howell LG, Witt RR, 'Trialling a real-time drone detection and validation protocol for the koala (Phascolarctos cinereus)', AUSTRALIAN MAMMALOGY, 43, 260-264 (2021) [C1]
DOI
Citations Scopus - 1Web of Science - 11
Co-authors Chad Beranek
2020 Witt RR, Hinds LA, Rodger JC, 'Induction of synchronous oestrus but not ovulation after pre-treatment with the GnRH agonist, Lucrin® Depot, in the tammar wallaby.', Theriogenology, 145, 24-30 (2020) [C1]
DOI
Citations Scopus - 4Web of Science - 4
Co-authors John Rodger
2020 Callen A, Hayward MW, Klop-Toker K, Allen BL, Ballard G, Beranek CT, Broekhuis F, Bugir CK, Clarke RH, Clulow J, Clulow S, Daltry JC, Davies-Mostert HT, Di Blanco YE, Dixon V, Fleming PJS, Howell LG, Kerley GIH, Legge SM, Lenga DJ, Majorq T, Montgomery RA, Moseby K, Meyer N, Parker DM, Periquet S, Read J, Scanlon RJ, Shuttleworth C, Tamessar CT, Taylor WA, Tuft K, Upton RMO, Valenzuela M, Witt RR, Wuster W, 'Response to comments on "Compassionate Conservation deserves a morally serious rather than dismissive response - reply to Callen et al., 2020"', BIOLOGICAL CONSERVATION, 244 (2020)
DOI
Citations Scopus - 3Web of Science - 3
Co-authors Kaya Klop-Toker, Rose Upton, Simon Clulow, Matthew Hayward, Alex Callen, Ninon Meyer, Chad Beranek, John Clulow
2020 Callen A, Hayward MW, Klop-Toker K, Allen BL, Ballard G, Beranek CT, Broekhuis F, Bugir CK, Clarke RH, Clulow J, Clulow S, Daltry JC, Davies-Mostert HT, Di Blanco YE, Dixon V, Fleming PJS, Howell LG, Kerley GIH, Legge SM, Lenga DJ, Major T, Montgomery RA, Moseby K, Meyer N, Parker DM, Periquet S, Read J, Scanlon RJ, Shuttleworth C, Tamessar CT, Taylor WA, Tuft K, Upton RMO, Valenzuela M, Witt RR, Wuster W, 'Envisioning the future with 'compassionate conservation': An ominous projection for native wildlife and biodiversity', BIOLOGICAL CONSERVATION, 241 (2020) [C1]

The 'Compassionate Conservation' movement is gaining momentum through its promotion of 'ethical' conservation practices based on self-proclaimed principles of ... [more]

The 'Compassionate Conservation' movement is gaining momentum through its promotion of 'ethical' conservation practices based on self-proclaimed principles of 'first-do-no-harm' and 'individuals matter'. We argue that the tenets of 'Compassionate Conservation' are ideological - that is, they are not scientifically proven to improve conservation outcomes, yet are critical of the current methods that do. In this paper we envision a future with 'Compassionate Conservation' and predict how this might affect global biodiversity conservation. Taken literally, 'Compassionate Conservation' will deny current conservation practices such as captive breeding, introduced species control, biocontrol, conservation fencing, translocation, contraception, disease control and genetic introgression. Five mainstream conservation practices are used to illustrate the far-reaching and dire consequences for global biodiversity if governed by 'Compassionate Conservation'. We acknowledge the important role of animal welfare science in conservation practices but argue that 'Compassionate Conservation' aligns more closely with animal liberation principles protecting individuals over populations. Ultimately we fear that a world of 'Compassionate Conservation' could stymie the global conservation efforts required to meet international biodiversity targets derived from evidenced based practice, such as the Aichi targets developed by the Convention on Biological Diversity and adopted by the International Union for the Conservation of Nature and the United Nations.

DOI
Citations Scopus - 4Web of Science - 40
Co-authors Chad Beranek, Ninon Meyer, Matthew Hayward, Kaya Klop-Toker, Alex Callen, John Clulow, Simon Clulow, Rose Upton
2020 Witt RR, Beranek CT, Howell LG, Ryan SA, Clulow J, Jordan NR, Denholm B, Roff A, 'Real-time drone derived thermal imagery outperforms traditional survey methods for an arboreal forest mammal', PLOS ONE, 15 (2020) [C1]
DOI
Citations Scopus - 4Web of Science - 28
Co-authors Shelby Ryan Uon, John Clulow, Chad Beranek
2020 Howell LG, Frankham R, Rodger JC, Witt RR, Clulow S, Upton RMO, Clulow J, 'Integrating biobanking minimises inbreeding and produces significant cost benefits for a threatened frog captive breeding programme', CONSERVATION LETTERS, 14 (2020) [C1]
DOI
Citations Scopus - 3Web of Science - 41
Co-authors John Clulow, John Rodger, Simon Clulow, Rose Upton
2019 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, Griffin AS, Howell LG, Kerley GIH, Klop-Toker K, Legge S, Major T, Meyer N, Montgomery RA, Moseby K, Parker DM, Periquet S, Read J, Scanlon RJ, Seeto R, Shuttleworth C, Somers MJ, Tamessar CT, Tuft K, Upton R, Valenzuela-Molina M, Wayne A, Witt RR, Wuster W, 'Deconstructing compassionate conservation', CONSERVATION BIOLOGY, 33, 760-768 (2019) [C1]

Compassionate conservation focuses on 4 tenets: first, do no harm; individuals matter; inclusivity of individual animals; and peaceful coexistence between humans and animals. Rece... [more]

Compassionate conservation focuses on 4 tenets: first, do no harm; individuals matter; inclusivity of individual animals; and peaceful coexistence between humans and animals. Recently, compassionate conservation has been promoted as an alternative to conventional conservation philosophy. We believe examples presented by compassionate conservationists are deliberately or arbitrarily chosen to focus on mammals; inherently not compassionate; and offer ineffective conservation solutions. Compassionate conservation arbitrarily focuses on charismatic species, notably large predators and megaherbivores. The philosophy is not compassionate when it leaves invasive predators in the environment to cause harm to vastly more individuals of native species or uses the fear of harm by apex predators to terrorize mesopredators. Hindering the control of exotic species (megafauna, predators) in situ will not improve the conservation condition of the majority of biodiversity. The positions taken by so-called compassionate conservationists on particular species and on conservation actions could be extended to hinder other forms of conservation, including translocations, conservation fencing, and fertility control. Animal welfare is incredibly important to conservation, but ironically compassionate conservation does not offer the best welfare outcomes to animals and is often ineffective in achieving conservation goals. Consequently, compassionate conservation may threaten public and governmental support for conservation because of the limited understanding of conservation problems by the general public.

DOI
Citations Scopus - 7Web of Science - 61
Co-authors Ninon Meyer, Matthew Hayward, Simon Clulow, John Clulow, Andrea Griffin, Kaya Klop-Toker, Alex Callen, Rose Upton
2018 Witt RR, Hinds LA, Rodger JC, 'Delayed return to estrus following treatment with the gonadotrophin-releasing hormone agonist, Lucrin® Depot, in the tammar wallaby.', Theriogenology, 115, 108-116 (2018) [C1]
DOI
Citations Scopus - 6Web of Science - 6
Co-authors John Rodger
2018 Witt RR, Rodger JJ, Rodger JC, 'Breeding in the fat-tailed dunnart following ovarian suppression with the gonadotrophin-releasing hormone agonist Lucrin® Depot', Reproduction, Fertility and Development, 30, 507-518 (2018) [C1]
DOI
Citations Scopus - 8Web of Science - 8
Co-authors John Rodger
2018 Witt RR, Rodger JC, 'Recent advances in tools and technologies for monitoring and controlling ovarian activity in marsupials', Theriogenology, 109, 58-69 (2018) [C1]
DOI
Citations Scopus - 1Web of Science - 9
Co-authors John Rodger
2016 Witt RR, Forbes IR, McBain J, Rodger JC, 'Ovarian suppression in a marsupial following single treatment with a gonadotrophin-releasing hormone agonist in microspheres', REPRODUCTION FERTILITY AND DEVELOPMENT, 28, 1964-1973 (2016) [C1]

The effect of treatment with Lucrin Depot (1 month), a microsphere gonadotrophin-releasing hormone agonist preparation, was investigated in the fat-tailed dunnart (Sminthopsis cra... [more]

The effect of treatment with Lucrin Depot (1 month), a microsphere gonadotrophin-releasing hormone agonist preparation, was investigated in the fat-tailed dunnart (Sminthopsis crassicaudata) as a potential strategy to synchronise cycling. The status of the ovaries (ovarian size, number and size of Graafian follicles and corpora lutea) and reproductive tract (weight, vascularity and muscularity) in twelve untreated females were assessed to establish the activity parameters for randomly selected cycling animals. Thirty-six females were treated with 1mgkg-1 (n=12), 10mgkg-1 (n=12) or 20mgkg-1 (n=12) Lucrin Depot. At 4, 6 and 8 weeks the reproductive tracts were assessed using the criteria developed in the untreated females. All of the females treated with 10mgkg-1 showed suppression at 4 weeks and 25% showed return of reproductive activity at 8 weeks. A dose of 1mgkg-1 did not appear to suppress reproductive activity and 20mgkg-1 gave equivocal results, with evidence of both suppression and activity. The results indicate that Lucrin Depot appears to be a promising agent to regulate and potentially synchronise breeding activity in the fat-tailed dunnart.

DOI
Citations Scopus - 8Web of Science - 8
Co-authors John Rodger
Show 19 more journal articles

Grants and Funding

Summary

Number of grants 17
Total funding $1,575,935

Click on a grant title below to expand the full details for that specific grant.


20243 grants / $431,941

Securing the threatened southern greater glider using innovative drone technology$199,867

Funding body: NSW Environmental Trust

Funding body NSW Environmental Trust
Project Team Doctor Ryan Witt, Doctor Darren Southwell, Miss Shelby Ryan, Un-named Student, Dr Adam Roff, Dr Natasha Robinson, Jane DeGabriel, Dr Monica Knipler, Dr Jared Wood, Doctor Chad Beranek
Scheme Research Grant
Role Lead
Funding Start 2024
Funding Finish 2026
GNo G2401741
Type Of Funding C2300 – Aust StateTerritoryLocal – Own Purpose
Category 2300
UON Y

Developing drone-based tools and ecological models to understand the presence, abundance and habitat of the southern greater glider$182,074

Funding body: NSW Department of Climate Change, Energy, the Environment and Water

Funding body NSW Department of Climate Change, Energy, the Environment and Water
Project Team Doctor Ryan Witt, Doctor Chad Beranek, Jane DeGabriel, Miss Brooke Mulley, Dr Natasha Robinson, Dr Adam Roff, Miss Shelby Ryan, Doctor Ryan Witt
Scheme HDR Scholarship
Role Lead
Funding Start 2024
Funding Finish 2024
GNo G2400679
Type Of Funding C1600 - Aust Competitive - StateTerritory Govt
Category 1600
UON Y

Developing a fauna monitoring protocol for Cumberland Plain Conservation Plan koala crossing and exclusion fence sites project$50,000

Funding body: NSW Department of Planning, Housing and Infrastructure

Funding body NSW Department of Planning, Housing and Infrastructure
Project Team Doctor Ryan Witt, Doctor Chad Beranek
Scheme Research Grant
Role Lead
Funding Start 2024
Funding Finish 2024
GNo G2401027
Type Of Funding C2300 – Aust StateTerritoryLocal – Own Purpose
Category 2300
UON Y

20233 grants / $701,795

Towards Koala Translocation: Understanding the drivers of fine-scale koala density to inform conservation action$631,795

Funding body: Taronga Conservation Society Australia

Funding body Taronga Conservation Society Australia
Project Team Doctor Ryan Witt, Doctor Darren Southwell, Andrew Elphinstone, Rachael Schildkraut, Dr Justine O'Brien, Dr Neil Jordan, Un-named Student
Scheme Research Grants
Role Lead
Funding Start 2023
Funding Finish 2026
GNo G2300121
Type Of Funding C3200 – Aust Not-for Profit
Category 3200
UON Y

Establishing koala abundance on Hunter Water Corporation managed tenure in the Port Stephens LGA$40,000

Funding body: Hunter Water Corporation

Funding body Hunter Water Corporation
Project Team Doctor Ryan Witt, Miss Shelby Ryan
Scheme Research Grant
Role Lead
Funding Start 2023
Funding Finish 2024
GNo G2300714
Type Of Funding C2300 – Aust StateTerritoryLocal – Own Purpose
Category 2300
UON Y

Evaluating the abundance, habitat use, and genetics of the squirrel glider across two reserve systems managed by the City of Newcastle$30,000

Funding body: City of Newcastle

Funding body City of Newcastle
Project Team

Dr. Ryan Witt, Dr. Chad Beranek, Hon. A. Prof. John Clulow, Miss Shelby Ryan, Mr Oliver Brynes

Scheme City of Newcastle
Role Lead
Funding Start 2023
Funding Finish 2024
GNo
Type Of Funding External
Category EXTE
UON N

20223 grants / $118,128

Statistical modelling and analysis of koala detection data from different survey methodologies.$62,858

Funding body: NSW Department of Planning and Environment

Funding body NSW Department of Planning and Environment
Project Team Doctor Darren Southwell, Doctor Chad Beranek, Miss Shelby Ryan, Doctor Ryan Witt
Scheme Research Project
Role Investigator
Funding Start 2022
Funding Finish 2023
GNo G2201279
Type Of Funding C2400 – Aust StateTerritoryLocal – Other
Category 2400
UON Y

Koalas, genotyping, trackers, and drones: Using thermal imaging, novel VHF/GPS tracking technology and genotyping to understand post-release outcomes for rehabilitated koalas and support the recovery $49,900

Funding body: WIRES

Funding body WIRES
Project Team Doctor Ryan Witt, Doctor Chad Beranek, Miss Shelby Ryan, Dr Neil Jordan, Rob Appleby, Dr Donald Hudson
Scheme Research Grants Program
Role Lead
Funding Start 2022
Funding Finish 2024
GNo G2200233
Type Of Funding C1700 - Aust Competitive - Other
Category 1700
UON Y

Optimising emerging drone technologies to accurately determine population density of koalas$5,370

Funding body: The Ecological Society of Australia Ltd (ESA)

Funding body The Ecological Society of Australia Ltd (ESA)
Project Team Doctor Ryan Witt, Emeritus Professor John Rodger, Associate Professor John Clulow, Dr Neil Jordan, Miss Shelby Ryan
Scheme Holsworth Wildlife Research Endowment
Role Lead
Funding Start 2022
Funding Finish 2022
GNo G2200357
Type Of Funding C3300 – Aust Philanthropy
Category 3300
UON Y

20214 grants / $290,771

Drone monitoring of priority koala populations in fire-prone landscapes$247,951

Funding body: WWF-Australia

Funding body WWF-Australia
Project Team

Doctor Ryan Witt, Associate Professor John Clulow, Doctor Neil Jordan, Shelby Ryan, Chad Beranek

Scheme Bushfire Regeneration Challenge
Role Lead
Funding Start 2021
Funding Finish 2023
GNo
Type Of Funding C3200 – Aust Not-for Profit
Category 3200
UON N

Optimising emerging drone technologies to accurately determine population density of koalas$19,757

Funding body: Australian Academy of Science

Funding body Australian Academy of Science
Project Team Miss Shelby Ryan, Miss Shelby Ryan, Associate Professor John Clulow, Doctor Ryan Witt, Dr Neil Jordan
Scheme The Margaret Middleton Fund for endangered Australian native vertebrate animals
Role Investigator
Funding Start 2021
Funding Finish 2021
GNo G2100802
Type Of Funding C1700 - Aust Competitive - Other
Category 1700
UON Y

Using thermal drone surveys to quantify koala abundance and density at Lake Innes Nature Reserve (Port Macquarie, NSW)$13,063

Funding body: Mid North Coast Joint Organisation

Funding body Mid North Coast Joint Organisation
Project Team Doctor Ryan Witt
Scheme Research Grant
Role Lead
Funding Start 2021
Funding Finish 2021
GNo G2101157
Type Of Funding C2400 – Aust StateTerritoryLocal – Other
Category 2400
UON Y

Koalas, dingoes and drones: using thermal imaging to establish detection probability of GPS collared dingoes and determine koala density in the Myall Lakes Region of NSW$10,000

Funding body: Royal Zoological Society of NSW

Funding body Royal Zoological Society of NSW
Project Team Doctor Ryan Witt, Dr Neil Jordan, Miss Shelby Ryan
Scheme Paddy Pallin Science Grant
Role Lead
Funding Start 2021
Funding Finish 2023
GNo G2101057
Type Of Funding C3200 – Aust Not-for Profit
Category 3200
UON Y

20191 grants / $15,000

Engaging with a cryptic local icon: the threatened koala$15,000

Funding body: Department of Industry, Innovation and Science

Funding body Department of Industry, Innovation and Science
Project Team

Dr. Ryan Witt, Lachlan Howell, Shelby Ryan, Chad Beranek

Scheme Communities Environment Program
Role Lead
Funding Start 2019
Funding Finish 2020
GNo
Type Of Funding Other Public Sector - Commonwealth
Category 2OPC
UON N

20171 grants / $4,800

Development of an oestrous synchronisation method for assisted breeding and recovery of threatened rock-wallabies$4,800

Funding body: Equity Trustees Limited

Funding body Equity Trustees Limited
Project Team

Prof. John Rodger, Ryan Witt

Scheme Holsworth Wildlife Research Endowment grant
Role Investigator
Funding Start 2017
Funding Finish 2017
GNo
Type Of Funding C3120 - Aust Philanthropy
Category 3120
UON N

20161 grants / $7,500

Developing artificial insemination technology for the recovery and genetic management of threatened and endangered rock wallabies$7,500

Funding body: Equity Trustees Limited

Funding body Equity Trustees Limited
Project Team

Prof. John Rodger, Ryan Witt

Scheme Holsworth Wildlife Research Endowment grant
Role Investigator
Funding Start 2016
Funding Finish 2016
GNo
Type Of Funding C3120 - Aust Philanthropy
Category 3120
UON N

20151 grants / $6,000

Developing artificial insemination technology for the recovery and genetic management of threatened and endangered rock wallabies$6,000

Funding body: Equity Trustees Limited

Funding body Equity Trustees Limited
Project Team

Prof. John Rodger, Ryan Witt

Scheme Holsworth Wildlife Research Endowment grant
Role Investigator
Funding Start 2015
Funding Finish 2015
GNo
Type Of Funding C3120 - Aust Philanthropy
Category 3120
UON N

Research Supervision

Number of supervisions

Completed6
Current2

Current Supervision

Commenced Level of ÁñÁ«³ÉÈËappÏÂÔØ Research Title Program Supervisor Type
2024 PhD Developing Social, Economic And Conservation Arguments For Advancing Assisted Reproductive Technologies And Their Uptake To Bird And Reptile Conservation PhD (Environmental Sc), College of Engineering, Science and Environment, ÁñÁ«³ÉÈËappÏÂÔØ of Newcastle Principal Supervisor
2023 PhD Evaluating the Impact of a Wild-to-Wild Koala Phascolarctos cinereus Reinforcement Translocation on Founder and Recipient Populations PhD (Environmental Sc), College of Engineering, Science and Environment, ÁñÁ«³ÉÈËappÏÂÔØ of Newcastle Principal Supervisor

Past Supervision

Year Level of ÁñÁ«³ÉÈËappÏÂÔØ Research Title Program Supervisor Type
2024 Honours Using a Spatially Explicit Capture-Recapture model to estimate density of gliding marsupials across fragmented bushland patches of Newcastle, NSW Ecology and Evolution, ÁñÁ«³ÉÈËappÏÂÔØ of Newcastle Principal Supervisor
2024 Honours Exploring female and male gamete development in the endangered Littlejohn's tree frog Biological Sciences, ÁñÁ«³ÉÈËappÏÂÔØ of Newcastle Co-Supervisor
2024 Honours Assessing barriers to geneflow and genetic health of koala subpopulations in Port Stephens, NSW Biological Sciences, ÁñÁ«³ÉÈËappÏÂÔØ of Newcastle Principal Supervisor
2022 PhD Examining the Cost-Effectiveness of Emerging Technologies for More Effective Threatened Species Conservation PhD (Environmental Sc), College of Engineering, Science and Environment, ÁñÁ«³ÉÈËappÏÂÔØ of Newcastle Co-Supervisor
2021 Honours Determining squirrel glider (Petaurus norfolcensis) density in three forest systems in the Hunter Region, NSW Ecology and Evolution, ÁñÁ«³ÉÈËappÏÂÔØ of Newcastle Co-Supervisor
2020 Honours Assessing the occupancy and distribution of the koala (Phascolarctos cinereus) relative to vehicle collisions as a key spatial threat on the Tomaree Peninsula, Port Stephens, NSW Ecology and Evolution, ÁñÁ«³ÉÈËappÏÂÔØ of Newcastle Co-Supervisor

Research Collaborations

The map is a representation of a researchers co-authorship with collaborators across the globe. The map displays the number of publications against a country, where there is at least one co-author based in that country. Data is sourced from the University of Newcastle research publication management system (NURO) and may not fully represent the authors complete body of work.

Country Count of Publications
Australia 20
United States 6
United Kingdom 4
Mexico 3
Namibia 3
More...

News

close up shot of a koala pictured at Sugarloaf in the treetops

News • 9 Jun 2025

Secret koala population uncovered on city fringe

A landmark survey has uncovered a hidden koala population living on the fringe of a major city, using thermal drone searches with spotlight verification and statistical modelling.

A close up shot of a small brown Squirrel Glider, the size of a human hand, wrapped in a blanket

News • 29 Apr 2024

Partnering to prevent local extinction of threatened marsupial

City of Newcastle (CN), the University of Newcastle and FAUNA Research Alliance have joined forces to investigate ways to protect Squirrel Gliders in the Lower Hunter.

photo shows image of koala from above in trees

News • 10 Aug 2023

Koala conservation heats up: drones used to thermally detect animals

Conservation scientists from the University of Newcastle are using heat-detecting drones to capture data on koala populations in Port Stephens LGA.

two male researchers closely looking a baby koala in a tree

News • 13 Apr 2022

New model could help save koalas at a fraction of the price

Integrating frozen koala sperm into captive management programs is a crucial step to help save the endangered Australian species – a first-of-its-kind model reveals.

Dr Ryan Witt

Positions

Postdoctoral Researcher
School of Environmental and Life Sciences
College of Engineering, Science and Environment

Lecturer
School of Environmental and Life Sciences
College of Engineering, Science and Environment

Casual Academic
School of Environmental and Life Sciences
College of Engineering, Science and Environment

Focus area

Environmental Science and Management

Contact Details

Email ryan.witt@newcastle.edu.au
Mobile +61421606222
Links

Office

Room BLG10
Building Biology Building
Location Callaghan
University Drive
Callaghan, NSW 2308
Australia