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Scientific Publications

To see the abstract of each article, roll your mouse over the authors' names (in blue. If you have trouble accessing a copy of an article, please email Adrian Treves.

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Coming soon: Why use pre-prints?

To reach a larger number of peer scientists before an article goes through the publication process, we present our work in pre-print format. This also has the advantage of reaching the public and policy-makers more quickly. The downside is if we get something wrong (demonstrated by peer-reviewed work or a pre-print shared with us) yet it reached the public and went into effect. We accept that risk because of the pressing public need for scientific information for public policy. We will clearly communicate any corrections if we find an error.

Published

Treves, A. 2024.

Authors declare no competing interests—really? Frontiers in Ecology and the Environment (guest editorial) June 2024.

Letter to the editor rebutting Petracca et al. 2024 on Washington state wolf forecasts. Santiago-Ávila F, vonHoldt BM, Treves A. 2024. Petracca et al. (2024) under-estimates the risk of gray wolf extinction by unscientific value judgments. Biological Conservation in press.

Brian Schuh's PhD dissertation, entitled "An Experimental Evaluation of Cheetah (Acinonyx jubatus) Reactions to Sound Playbacks of Domestic Animals and Correlations between Humans’ Attitudes towards Carnivores and their Accuracy of Species Identification. Louchouarn, NX, Proulx, G, Serfass, TL, Niemeyer, CC, Treves, A. 2024. Best management practices for trapping are neither best science nor best management. Canadian Wildlife Biology & Management 13(1): 35-49

Treves A, Khorozyan, I.

in review. Robust inference and errors in studies of wildlife control. Pre-print posted for pre-publication review at https://www.researchsquare.com/article/rs-3478813/v1

Peer-reviewed or published with editorial review

Treves, A., Agan, SW, Langenberg, JA, Lopez-Bao, J.V., Louchouarn, NX. Parsons, DR, Rabenhorst, MF, Santiago-Ávila, FJ, 2024. Response to Roberts, Stenglein, Wydeven, and others. Journal of Mammalogy 2024 in 105(6):1473–1479.

Treves A, Fergus, AR, Hermanstorfer, SJ, Louchouarn, NX, Ohrens, O, Pineda Guerrero, AA. 2024.

Gold-standard experiments to deter predators from attacking farm animals. Animal Frontiers 14(1)"40-52.

After years of research, our conclusions about non-lethal deterrents and how to design randomized, controlled trials with crossover design.

(1) The long-held belief that randomized, controlled trials (RCTs) are impossible in wild ecosystems with working livestock is laid to rest.

(2) Crossover designs reduce most confounding variables between subjects and strengthen inference beyond the gold-standard of RCTs, yet we describe limitations precisely.

(3) Non-lethal methods can be effective in preventing carnivore approaches and attacks on working livestock in fenced pastures or open rangelands. The relationship between approaches and attacks remains uncertain.

(4) Lethal methods of predator control have been subjected to less robust study designs that suggest mixed results including increases in livestock losses.

(5) Non-lethal methods promise the elusive triple-win for wildlife, domestic animals, and livelihoods.

Treves, A. 2023.

Replace the ivory tower with the fire tower. Frontiers in Ecology and the Environment (guest editorial) p.355, doi:10.1002/fee.2676

Rogers A, Treves A, Karamagi R, Nyakoojo M, Naughton-Treves, L. 2023

Trenches reduce crop foraging by elephants: Lessons from Kibale National Park, Uganda for elephant conservation in densely settled rural landscapes. PLoS One 18(7): e0278501.

Louchouarn NX. 2023

Don’t judge the roar by its echo: Tests of assumptions, tools and policies for human-carnivore coexistence in North America. PhD dissertation, August 2023, Carnivore Coexistence Lab, Nelson Institute for Environmental Studies, University of Wisconsin-Madison.

Hermanstorfer, S. J. 2023

Western Colorado carnivore coexistence: Gold-standard non-lethal deterrent experiments and human-carnivore coexistence in Montrose, Colorado. Master's thesis, June 2023, Carnivore Coexistence Lab, Nelson Institute for Environmental Studies, University of Wisconsin-Madison.

Treves, A., L. M. Elbroch, J. T. Bruskotter, 2024.

Evaluating fact claims accompanying policies to liberalize the killing of wolves, peer-reviewed chapter TBA, In press. Alpha Wildlife Publications, Canada.

Elbroch L & Treves A. (equal co-authors) 2023.

Why might removing carnivores maintain or increase risks for domestic animals? Biological Conservation 283:110106.

Treves, A., Santiago-Ávila, F.J. 2023

Estimating wolf abundance with unverified methods. Academia Biology 1 doi 10.20935/AcadBiol6099 Compressed source documents

from the state (WDNR 2022 population reports, greensheet and Stauffer et al. 2021).


Treves, A. 2022.

'Best available science' and the reproducibility crisis. Frontiers in Ecology and the Environment (guest editorial) 20(9):495, https://doi.org/10.1002/fee.2568

The infographic below refers to information contained in the above articles.

“what

Treves A, Elbroch, LM, Koontz F, Papouchis CM. 2022.

How should scientific review and critique support policy? PLoS One Comment on Laundre & Papouchis 2020. Click here to access PLoS One pages

and full disclosure for the Comment

Treves, A., Elbroch, L.M. 2022.

Does killing wild carnivores raise risk for domestic animals? Wild Felid Monitor, the newsletter of the Wild Felid Research & Management Association. Summer 2022.

Louchouarn & Treves 2023.

Low-stress livestock handling protects cattle in a five-predator habitat. PeerJ 11:e14788 http://doi.org/10.7717/peerj.14788.

Supplementary Materials for the above article here.

Santiago-Ávila FJ, Agan S, W.,, Hinton JW, Treves A. 2022.

Evaluating how management policies affect red wolf mortality and disappearance. Royal Society Open Science 9:210400. https://doi.org/10.1098/rsos.210400.

Treves, A. 2025

Reply to Stauffer et al.: Uncertainty and precaution in hunting wolves twice in a year: in review at PLoS One available here.

In summary, our rebuttals to Roberts et al. and Stauffer et al, showed how

a. Stauffer et al.’s 2021 model of wolf occupancy in WI relies on data from previous years of winter tracking even if lethal management (such as a wolf-hunt) happened. Therefore, they are likely to be counting dead wolves as alive. That is why no one should trust the state estimate of the wolf population. If Stauffer and Roberts shared data as required by publication ethics, they might be able to support their estimates and their claims. But they have refused to share data again and again since 2012. And even if they did share their Datta we doubt it would show what they claim, so we suspect the state wolf population was lower than what they estimated in all previous years.

b. State estimates of birth rates are based on flawed science that hasn't passed peer review. The methods they use are inaccurate, even A. Wydeven admitted it in 2004, and they presume theirs are superior to mark-recapture methods published by Dick Thiel.

c. State estimates of wolf mortality are large, systematic under-estimates. Roberts and Stauffer both perpetuate a myth that radio-collared wolves who disappear just went off the air because of transmitter or battery failures despite the rate of disappearance being two- to three-fold higher than rates of disappearance for other (non-wolf) animal telemetry data.

d. Neither Stauffer nor Roberts share data so their claims are not credible by current scientific standards of the Open science movement. Neither they nor their co-authors transparently disclose potentially competing interests -- both financial and non-financial. These are breaches of publication ethics and research integrity according to the National Academies of science. We’re working with editors of multiple journals to flag their articles for concern or correction. The evidence for our claims is here. I will remove the disclosures they should have made once resolved. For now they are posted here .

The above evidence of undisclosed affiliations, and interests, both financial and non-financial. These are breaches of scientific integrity long described by the National Academies of Sciences, Engineering, and Medicine.

Note Stauffer et al. and Roberts et al., claim we are trying to silence them when we are obviously trying the opposite, to compel transparency about their potentially competing interests, see this article on competing interests.

See this editorial Treves, A. 2024. Authors declare no competing interests—really? Frontiers in Ecology and the Environment (guest editorial) to understand why disclosures of potentially competing interests are important and why current practices in scientific peer review need an overhaul.

They also routinely engage in selective citation which means they do not cite the work that contradicts their preferred findings and whenever they are compelled to cite contrary findings, they mention rebuttals to it. This creates the illusion that their science is ironclad while critics have been challenged. Such cherry-picking or selective citation also violates National Academies guidelines on research integrity. Ti also further undermines claims that Wisconsin DNR policy is informed by the best available science, let alone 'science-based'.

I explain why scientific integrity is so important to public confidence in our research community and good government at this page.

Treves, A., Louchouarn, N.X. 2022.

Uncertainty and precaution in hunting wolves twice in a year. PLoS One, 2022. 17(3): e0259604. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0259604.

Note the debate about the above article continued into 2025 including corrections, rebuttals, and requests for retraction of work by Stenglein, van Deelen, and Stauffer. See above for details.

The DNR and NRB documents we cited from 2021.

Oliveira, Treves, López-Bao, Krofel, 2021. The contribution of the LIFE program to mitigating damages caused by large carnivores in Europe. Global Ecology and Conservation 31:e01815.

The Supplementary Information from Treves & Louchouarn 2022.

Santiago-Ávila, F.J. & Treves, A. 2022.Poaching of protected wolves fluctuated seasonally and with non-wolf hunting. Scientific Reports 12:e1738. https://doi.org/10.1038/s41598-022-05679-w.

Treves, A., F.J. Santiago-Ávila, and K. Putrevu 2021.

Quantifying the effects of delisting wolves after the first state began lethal management. PeerJ, 9:e11666, doc 10.7717/peerj.11666.

Treves A, Paquet PC, Artelle KA, Cornman AM, Krofel M, Darimont CT. 2021.

Transparency about values and assertions of fact in natural resource management. Frontiers in Conservation Science: Human-Wildlife Dynamics, 2:e631998, doc 10.3389/fcosc.2021.631998.

Treves, A., C. Batavia 2021.

Improved disclosures of non-financial competing interests would promote independent review. Academia Letters, 2021. Article 514: p. 1-9.

Agan, S.W., A. Treves, and E.L. Willey 2021.

Estimating poaching risk for the critically endangered wild red wolf (Canis rufus). PLoS One, 2021. 16(5):e0244261. DOI 10.1371.

Agan, S.W., A. Treves, and E.L. Willey 2021.

Majority positive attitudes cannot protect red wolves (Canis rufus) from a minority willing to kill illegally. Biological Conservation 109321. DOI https://doi.org/10.1016/j.biocon.2021.109321

Louchouarn NX, Santiago-Ávila FJ, Parsons DR, Treves A.2021.

Evaluating how lethal management affects poaching of Mexican wolves. Royal Society Open Science 8 (registered report):: e2003300.

Just Preservation

In 2018, we published our ethic of public trusteeship, non-anthropocentric, multispecies justice that presents a method to give voice to future generations and to nonhumans when decisions are made to allocate or preserve nature. Start here with the original article Treves, A., Santiago-Ávila, F., Lynn, W.S. (equal co-authors) 2018. Just Preservation. Biological Conservation 229: 134-141.

The newest discussion of Just Preservation played out in 2021 in the journal Animal Sentience, which included commentaries by several dozen colleagues and our replies to each: F.J. Santiago-Ávila, A. Treves (equal co-authors), W.S. Lynn, Just preservation, trusteeship and multispecies justice. Animal Sentience 393. This continues our work on trusteeship, legal standing for nonhumans, and future generations, and equitable consideration of nonhumans as members of our moral community.

Treves, A. and N. J. Balster (2021

The effect of extended student hours on performance of students in an interdisciplinary, introductory undergraduate ecology course. North American Colleges and Teachers of Agriculture Journal, in press.

Tshabalala, T., McManus, J., Treves, A., Masocha, V., Faulconbridge, S., Schurch, M., Goets, S., Smuts, B. 2021.

Leopards and mesopredators as indicators of mammalian species richness across diverse landscapes of South Africa. Ecological Indicators 121, 107201.

Masters thesis

by Abi Fergus, M.S. December 2020.

Santiago-Ávila, F.J., R.J. Chappell, and A. Treves, 2020.

Liberalizing the killing of endangered wolves was associated with more disappearances of collared individuals in Wisconsin, USA. Scientific Reports 10:e13881. https://doi.org/10.1038/s41598-020-70837-x.

Darimont, C.T., Hall, H., Mihalik, I., Artelle, K.A., Eckert, L., Treves A., Paquet, P.

Large carnivore hunting and the social license to hunt. Conservation Biology 35(4):1111-1119. https://doi.org/10.1111/cobi.13657.

Carroll, C., Rohlf, D.J., von Holdt, B.M., Treves, A., Hendricks, S.A. 2020

Wolf delisting challenges demonstrate need for an improved framework for conserving intraspecific variation under the Endangered Species Act. Bioscience  biaa125,1-12. doi:10.1093/biosci/biaa125. .

With a podcast from four of the authors to explain the analysis and recommendations, in the wake of 2020 Trump Administration rule to delist the gray wolf nationwide Listen here (55 minutes).

Treves, Louchouarn, Santiago-Ávila. 2020.

Modelling concerns confound evaluations of legal wolf-killing. Biological Conservation. 249:108643,https://doi.org/10.1016/j.biocon.2020.108643.

Treves & Santiago-Ávila. 2020

Myths and assumptions about human-wildlife conflict and coexistence. Conservation Biology 10.1111/cobi.13472.

Treves, A. 2020

Standards of evidence in wild animal research. A report for the Brooks Institute for Animal Rights Law and Policy.

Treves 2020. Elephants and pandemics. Animal Sentience 28(20). URL

Treves, A., Krofel M, Ohrens O and van Eeden 2019

Predator Control Needs a Standard of Unbiased Randomized Experiments With Cross-Over Design. Frontiers in Ecology and Evolution 7:402-413. doi: 10.3389/fevo.2019.00462

Treves, A. 2019.

Scientific ethics and the illusion of naïve objectivity. (guest editorial) Frontiers in Ecology and the Environment 7:1.

Treves, A. A. F. J. Santiago-Ávila, V. D. Popescu, P. C. Paquet, W. S. Lynn, C. T. Darimont, K. A. Artelle 2019

Trophy hunting: Insufficient evidence. Letter in Science 366(6464):435.

Ohrens, O., Bonacic, C., Treves, A. 2019. Non-lethal defense of livestock against predators: Flashing lights deter puma attacks in Chile. Frontiers in Ecology and the Environment 17(1):1-7.

van Eeden, L., Eklund, A., Miller, J.R.B.,...17 co-authors... Treves, A. (equal first authors) 2018. Carnivore conservation needs evidence-based livestock protection. PLOS Biology https://doi.org/10.1371/journal.pbio.2005577

. 2018. Van Eeden, Treves, Ritchie. The Conversation.

A short popular science summary of the above article.

Treves, A., Artelle, K.A., Paquet, P.C. 2018. Differentiating between regulations and hunting as conservation interventions. Conservation Biology 33(2):472–475. DOI:10.1111/cobi.13211.

Santiago-Avila, F.J., Lynn, W.S., Treves, A. 2018.

Inappropriate consideration of animal interests in predator management: Towards a comprehensive moral code. In Large Carnivore Conservation and Management: Human Dimensions and Governance, ed. T. Hovardos, Taylor & Francis, London.

Ohrens, O., Santiago-Avila, F.J., Treves, A.2019.

The challenges of preventing real and perceived threats to livestock. In Human-Wildlife Interactions: Turning Conflict into Coexistence, eds. B. Frank, S. Marchini, J. Glikman, Cambridge University Press: Cambridge.

Treves, A., K. A. Artelle, C. T. Darimont, W. S. Lynn, P. C. Paquet, F. J. Santiago-Avila, R. Shaw and M. C. Wood 018.

Intergenerational equity can help to prevent climate change and extinction. Nature Ecology & Evolution DOI: 10.1038/s41559-018-0465-y.

Supporting Data. @Burgessart Credit: Jen Burgess @jenburgessart @Burgessart

Credit: Jen Burgess @jenburgessart

Infographic below for 'Hallmarks of science missing from North American wildlife hunting and trapping plans': infographic

Artelle, K.A., Reynolds, J.D., Treves, A. Walsh, J.C., Paquet, P.C., Darimont, C.T. 2018.

Hallmarks of science missing from North American wildlife management. Science Advances. 2018.

short video explaining the findings

Santiago-Avila, F.J., Cornman, A.M., Treves, A. 2018.

Killing wolves to prevent predation on livestock may protect one farm but harm neighbors. PLOS One 13:e0189729 here

Treves A, Rabenhorst MF. 2017.

Risk Map for Wolf Threats to Livestock still Predictive 5 Years after Construction. PLoS ONE: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0180043.

Lopez-Bao, J.V., Chapron, G., Treves, A. 2017.

The Achilles heel of participatory conservation. Biological Conservation 212: 139-143.

Treves, A., Artelle, K.A., Darimont, C.T., Parsons, D.R. 2017.

Mismeasured mortality: correcting estimates of wolf poaching in the United States. Journal of Mammalogy 98(3): open access at DOI: https://doi.org/10.1093/jmammal/gyx052.

Summary and FAQs

Darimont, C.T., Paquet, P., Treves, A., Artelle, K.A., Chapron, G. 2018. Political populations of large carnivores.Conservation Biology 32(3):747-749.

Carroll, C., B. Hartl, G.T. Goldman, D.J. Rohlf, A. Treves, J.T. Kerr, E.G. Ritchie, R.T. Kingsford, K.E. Gibbs, M. Maron, J.E.M Watson. 2017. Defending scientific integrity in conservation policy processes: lessons from Canada, Australia, and the United States. Conservation Biology DOI: 10.1111/cobi.12958

Treves, A., J.A. Langenberg, J.v. López-Bao, M.F. Rabenhorst 2017. Gray wolf mortality patterns in Wisconsin from 1979 to 2012 Journal of Mammalogy 98(1): DOI:10.1093/jmammal/gyw145

Chapron, G. and A. Treves 2016a and b, 2017a and b.

  In 2016, Chapron & Treves published the first challenge to the notion that legal killing reduces illegal killing of wolves, a notion which had been put forward by The US government in a court case about protections for gray wolves. Chapron & Treves (2016a,b) presented population dynamic evidence that the opposite occurred, liberalizing wolf-killing increased wolf-poaching. This was challenged without new evidence by Pepin et al., Stien, and Olson et al. in 2017, so the debate simmered until 2020 when Dr. Francisco Santiago-Ávila et al. presented estimates of gray wolf survival and incidence of death and disappearance among radio-collared Wisconsin wolves. The data presented no evidence that liberalizing wolf-killing did anything good for the wolves as individuals or as a population. Those researchers formulated the hypothesis of facilitated illegal killing. That hypothesis was replicated for Mexican gray wolves in Arizona and New Mexico by Louchouarn et al. 2021 and for North Carolina red wolves by Santiago-Ávila et al. 2022. Also in 2022 and 2023, two new analyses of Wisconsin and Michiga gray wolves reaffirmed the inter-annual increases in deaths and disappearances during periods characterized by different policies, different mammal-hunting seasons, and different political administrations (Santiago-Ávila & Treves 2022; Louchouarn 2023). Breck et al. (2023) published a contrary view of Mexican gray wolf removals but their analysis has also been questioned on multiple methodological grounds. Although the scientific debate is unresolved, the discussion has advanced measurably in the rigor of scientific analysis and the quality of evidence. In my opinion the balance of evidence is that policies and politics that reduce the value of wolves or encourage lawlessness contribute to wolf-poaching. And liberalizing and expanding wolf-killing has been the major cause of devaluing wolves in many regions.

Since 2018, the debate in Nordic countries has been equivocal with Liberg et al. (2020) arguing that regulated wolf-hunting lowered poaching, a conclusion challenged by Treves et al. (2020) on the basis of the same data. Also in Finland, Surtainen & Kojola (2017, 2018) reported that legal killing removed gray wolves before poachers could do so and that regulated killing was not a solution to illegal killing in Finland. Although the scientific debate is unresolved, the discussion has advanced measurably in the rigor of scientific analysis and the quality of evidence. In my opinion the balance of evidence is that policies and politics that reduce the value of wolves or encourage lawlessness contribute to wolf-poaching. And liberalizing and expanding wolf-killing has been the major cause of devaluing wolves in many regions.

See the Publications page for references to Treves, Chapron, Santiago-Ávila, and Louchouarn. For other references, please contact

..

Treves, A., Krofel, M., McManus, J. (equal co-authors).2016.

Predator control should not be a shot in the dark. Frontiers in Ecology and the Environment14: 380-388. This article has the highest Altmetric score among articles of the same age in that journal, ranks in the 99th percentile for all research outputs of similar age, and the top 5% for research outputs of all types and ages; see https://wiley.altmetric.com/details/10981879#score for details.

In a nutshell: