Personal profile
Research overview
I develop and apply statistical methods for solving problems in ecology, primarily involving drawing inferences about wildlife population abundance, distribution and populaton trajectories from survey data of various sorts. These methods are used extensively by national, international and private conservation and management organizations. My personal web page can be found here.
Research interests
My current main resarch interests focus on developing methods to better exploit data from digital survey devices like camera traps, microphone arrays and drones to assess wildlife populations. To do this I develop methods that straddle a number of areas of statistical research including capture-recapture methods, distances sampling, spatial modelling, survival analysis and time-to-event analysis, as well as collaborating with developers of artificial intelligence methods to automatically identify species of interest in digital data streams, and with ecologists with the requisite knowledge of these species.
Industrial relevance
The assessment methods I develop and use inform wildlife management and conservation decisions and policy. Examples include setting of fishing quotas, establishing reserves, and species recovery programmes. I am currently working with snow leopard ecologists to support the world's first comprehensive survey of this elusice species, with gibbon ecologists to develop more effective methods for assessing gibbon populations, and with aerial survey specialists to implement effective video-based surveys of certain marine mammals.
External positions
Honorary Research Associate, University of Cape Town
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
-
SDG 13 Climate Action
-
SDG 14 Life Below Water
-
SDG 15 Life on Land
Fingerprint
- 1 Similar Profiles
Collaborations and top research areas from the last five years
-
Abundance and distribution of narwhals (Monodon monoceros) on the summering grounds in Greenland between 2007-2019
Hansen, R. G., Borchers, D. L. & Heide-Jørgensen, M. P., 31 Jan 2024, In: Frontiers in Marine Science. 11, 19 p., 1294262.Research output: Contribution to journal › Article › peer-review
Open AccessFile -
A flexible framework for spatial capture-recapture with unknown identities
Van Dam-Bates, P., Papathomas, M., Stevenson, B. C., Fewster, R. M., Turek, D., Stewart, F. E. C. & Borchers, D. L., Mar 2024, In: Biometrics. 80, 1, 12 p., ujad019.Research output: Contribution to journal › Article › peer-review
Open AccessFile -
Approximate maximum likelihood inference for acoustic spatial capture-recapture with unknown identities, using Monte Carlo expectation maximization
Wang, Y., Ye, J., Li, W. & Borchers, D. L., 6 Oct 2024, arXiv, 37 p.Research output: Working paper › Preprint
Open Access -
Ghostbusting - Reducing bias due to identification errors in spatial capture-recapture histories
Kodi, A. R., Howard, J., Borchers, D. L., Worthington, H., Alexander, J., Lkhagvajav, P., Bayandonoi, G., Ochirjav, M., Erdenebaatar, S., Byambasuren, C., Battulga, N., Johansson, O. & Sharma, K., Jun 2024, In: Methods in Ecology and Evolution. 15, 6, p. 1060-1070Research output: Contribution to journal › Article › peer-review
Open AccessFile -
That's not the Mona Lisa! How to interpret spatial capture-recapture density surface estimates
Durbach, I., Chopara, R., Borchers, D. L., Phillip, R., Sharma, K. & Stevenson, B. C., Mar 2024, In: Biometrics. 80, 1, 9 p., ujad020.Research output: Contribution to journal › Article › peer-review
Open AccessFile
Datasets
-
Listening and watching: do camera traps or acoustic sensors more efficiently detect wild chimpanzees in an open habitat? (dataset)
Crunchant, A.-S. (Creator), Borchers, D. L. (Creator), Kühl, H. (Creator) & Piel, A. (Creator), Dryad, 2020
Dataset
-
Distance sampling detection functions: 2D or not 2D? (dataset)
Borchers, D. L. (Creator) & Cox, M. J. (Creator), GitHub, 15 Jun 2017
https://github.com/david-borchers/LT2D
Dataset
-
Spatial variation in population-density, movement and detectability of snow leopards in a multiple use landscape in Spiti Valley, Trans-Himalaya
Sharma, R. K. (Contributor), Sharma, K. (Contributor), Borchers, D. (Contributor), Bhatnagar, Y. V. (Contributor), Suryawanshi, K. S. (Contributor) & Mishra, C. (Contributor), Dryad, 2 Jun 2021
Dataset
-
An acoustic spatially explicit capture-recapture method for estimating vocalising amphibian density.
Measey, G. J. (Creator), Scott (tanya scott), T. (Creator), Borchers, D. L. (Creator), Stevenson, B. (Creator), Altwegg, R. (Creator), Swift, R. J. (Creator) & Gillespie, D. M. (Creator), SAEON Data Repository, 1 Dec 2016
http://dx.doi.org/10.15493/SAEON.METACAT.10000005
Dataset
-
A unifying model for capture-recapture and distance sampling surveys of wildlife populations (dataset)
Borchers, D. L. (Creator), Stevenson, B. (Creator), Kidney, D. (Creator), Thomas, L. J. (Creator) & Marques, T. A. L. O. (Creator), GitHub, 9 Jun 2017
https://github.com/b-steve/admbsecr/
Dataset
Projects
- 9 Finished
-
Building impact in gibbon conservation: Building impact in gibbon conservation
Oedekoven, C. (PI) & Borchers, D. (CoI)
1/08/23 → 31/07/24
Project: Standard
-
Spatial Capture-recapture with Memory: Spatial Capture-recapture with Memory: A New Hidden Markov Model Perspective
Borchers, D. (PI)
1/05/22 → 31/01/23
Project: Standard
-
Online Spatial Capture-Recapture: Online Spatial Capture-Recapture Workshop for Camera Trap Surveyors
Borchers, D. (PI)
1/08/21 → 31/03/22
Project: Standard
-
Stat methods support sustain wildlife: Statistical methods to support sustainable wildlife management and impact assessment
Borchers, D. (PI), MacKenzie, M. (CoI) & Thomas, L. (CoI)
1/07/16 → 31/03/17
Project: Standard
-
Modelling spatial distribution: Modelling spatial distribution and change from wildlife survey data
Borchers, D. (PI), Buckland, S. (CoI) & Illian, J. B. (CoI)
1/10/13 → 30/09/16
Project: Standard
Activities
-
International Conference for Snow Leopard Conservation
Borchers, D. L. (Invited speaker)
2 Sept 2018 → 7 Sept 2018Activity: Talk or presentation types › Invited talk
-
University of Auckland
Borchers, D. L. (Visiting researcher)
6 Aug 2018 → 18 Dec 2018Activity: Visiting an external institution types › Visiting an external academic institution
-
Conservation Asia Conference
Borchers, D. L. (Keynote/Plenary speaker)
6 Aug 2018 → 10 Aug 2018Activity: Talk or presentation types › Invited talk
-
International Statistical Ecology Conference
Buckland, S. T. (Organiser), Rexstad, E. (Chair of organising committee), Thomas, L. (Member of organising committee), Borchers, D. L. (Member of organising committee) & Illian, J. B. (Member of organising committee)
2 Jul 2018 → 6 Jul 2018Activity: Participating in or organising an event types › Participation in or organising a conference
-
International Statistical Ecology Conference
Buckland, S. T. (Chair of organising committee), Rexstad, E. (Chair of organising committee), Borchers, D. L. (Organiser), Brewer, M. (Organiser), Burt, M. L. (Organiser), Estevinho Santos Faustino, C. (Organiser), Harris, D. V. (Organiser), Illian, J. B. (Organiser), Bortolotto de Oliveira, G. A. (Organiser), King, R. (Organiser), Marques, T. A. (Organiser), Papathomas, M. (Organiser), Rodger, R. (Organiser), Thomas, L. (Organiser), Scott-Hayward, L. A. S. (Organiser) & Paxton, C. G. M. (Organiser)
2 Jul 2018 → 6 Jul 2018Activity: Participating in or organising an event types › Participation in or organising a conference
Prizes
-
Head of Statistics Division, School of Mathematics and Statitistics, University of St Andrews.
Borchers, D. L. (Recipient), 2009
Prize: Appointment
-
Head of the Research Unit for Wildlife Population Assessment
Borchers, D. L. (Recipient), 2001
Prize: Appointment
Impacts
-
Distance sampling surveys: enabling better decision-making by wildlife managers (REF 2014)
Buckland, S. (Participant), Borchers, D. (Participant), Thomas, L. (Participant) & Rexstad, E. (Participant)
Impact: Public Policy Impact, Environmental Impact
-
Surveying the Small Apes: Developing tools and techniques for conserving gibbons and siamang
Borchers, D. (Participant)
Impact: Environmental Impact