{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T15:43:06Z","timestamp":1785426186782,"version":"3.56.0"},"reference-count":18,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T00:00:00Z","timestamp":1784851200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000936","name":"Gordon and Betty Moore Foundation","doi-asserted-by":"publisher","award":["10540"],"award-info":[{"award-number":["10540"]}],"id":[{"id":"10.13039\/100000936","id-type":"DOI","asserted-by":"publisher"}]},{"award":["10540"],"award-info":[{"award-number":["10540"]}],"id":[{"id":"https:\/\/ror.org\/006wxqw41","id-type":"ROR","asserted-by":"publisher"}]},{"name":"National Science Foundation Graduate Research Fellowship","award":["2139321"],"award-info":[{"award-number":["2139321"]}]},{"name":"National Science Foundation","award":["2330423"],"award-info":[{"award-number":["2330423"]}]},{"name":"Department of Biological Sciences at the University of Pittsburgh"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Large sensor arrays are an increasingly popular sampling method among ecologists. To last in the field, sensor housing needs to be resistant to damage from both weather and animals. The popular AudioMoth acoustic recorder does not have integral weather-resistant housing and is deployed by users in a wide variety of protective cases. One inexpensive way to protect AudioMoths is to deploy them in plastic bags, which offer moderate weather resistance but are susceptible to chewing damage from small mammals. In this study, we test the effectiveness of commercially available mammal deterrents in preventing such chewing damage. We deployed 115 treatment-control pairs across two grids in temperate forests in Pennsylvania. Bag treatments consisted of Liquid Fence, Bonide, and a cayenne and Vaseline mixture. For all deterrents, there was no statistically significant difference in the proportion or severity of mammal chewing damage between treatments and controls. Counter to expectations, for all three treatments, more of the bags treated with a deterrent were damaged by mammal chewing than the paired control bags. Our results strongly suggest that single applications of these three deterrents have no useful effect on preventing mammal chewing damage to sensor housing in the field.<\/jats:p>","DOI":"10.3390\/s26154704","type":"journal-article","created":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T07:36:13Z","timestamp":1784878573000},"page":"4704","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Single Applications of Commercial Mammal Deterrents Fail to Prevent Chewing Damage to Passive Acoustic Sensors"],"prefix":"10.3390","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-3900-1906","authenticated-orcid":false,"given":"Brooke D.","family":"Goodman","sequence":"first","affiliation":[{"name":"Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3623-9462","authenticated-orcid":false,"given":"Lauren M.","family":"Chronister","sequence":"additional","affiliation":[{"name":"Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4352-3464","authenticated-orcid":false,"given":"Tessa A.","family":"Rhinehart","sequence":"additional","affiliation":[{"name":"Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-7718-0162","authenticated-orcid":false,"given":"R. Patrick","family":"Lyon","sequence":"additional","affiliation":[{"name":"Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7839-3594","authenticated-orcid":false,"given":"Justin","family":"Kitzes","sequence":"additional","affiliation":[{"name":"Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1111\/2041-210x.70133","article-title":"Integrating AI models into ecological research workflows: The case of terrestrial bioacoustics","volume":"17","author":"Kitzes","year":"2025","journal-title":"Methods Ecol. Evol."},{"key":"ref_2","unstructured":"Lapp, S. (2026, April 03). AudioMoth Performance Testing: A Quantitative Report of Audio Recording Quality for the AudioMoth. GitHub Repository. Available online: https:\/\/github.com\/kitzeslab\/audiomoth-performance."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Lapp, S., Stahlman, N., and Kitzes, J. (2023). A Quantitative Evaluation of the Performance of the Low-Cost AudioMoth Acoustic Recording Unit. Sensors, 23.","DOI":"10.3390\/s23115254"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1002\/wll2.12052","article-title":"Uncovering Breeding Habitat Use of an Uncommon Songbird in Pennsylvania Using Large Scale Acoustic Data","volume":"2","author":"Czarnecki","year":"2025","journal-title":"Wildl. Lett."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"e06940","DOI":"10.1111\/ecog.06940","article-title":"Evaluating the predictors of habitat use and successful reproduction in a model bird species using a large-scale automated acoustic array","volume":"2025","author":"Chronister","year":"2024","journal-title":"Ecography"},{"key":"ref_6","first-page":"437","article-title":"Pepper Wax: An organic squirrel deterrent for lead","volume":"24","author":"Fair","year":"2017","journal-title":"Objects Spec. Group Postprints"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1344","DOI":"10.2307\/3802853","article-title":"Repellents to Reduce Cable Gnawing by Northern Pocket Gophers","volume":"63","author":"Shumake","year":"1999","journal-title":"J. Wildl. Manag."},{"key":"ref_8","unstructured":"Shumake, S.A., and Hakim, A.A. (2000). Evaluating Norway rat response to attractant and repellant odors to improve rodenticide baiting effectiveness. Wildlife Damage Management Conferences\u2014Proceedings, Internet Center for Wildlife Damage Management. Available online: https:\/\/digitalcommons.unl.edu\/icwdm_wdmconfproc\/19."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"e70042","DOI":"10.1111\/rec.70042","article-title":"Promoting acorn survival using capsaicin seed coatings is strengthened by the removal of invasive shrubs","volume":"33","author":"Fuka","year":"2025","journal-title":"Restor. Ecol."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"238","DOI":"10.1139\/cjfr-2023-0109","article-title":"Seed coatings containing capsaicin reduce seed removal in temperate woody species","volume":"54","author":"Lanni","year":"2024","journal-title":"Can. J. For. Res."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"254","DOI":"10.1111\/rec.12862","article-title":"Spicing up restoration: Can chili peppers improve restoration seeding by reducing seed predation?","volume":"27","author":"Pearson","year":"2019","journal-title":"Restor. Ecol."},{"key":"ref_12","unstructured":"Taylor, J.B. (2019). Deterring Rodent Seed Predation Using Seed-Coating Technologies. [Master\u2019s Thesis, Brigham Young University]. Available online: https:\/\/www.proquest.com\/docview\/2598054455\/abstract\/6FBF771EC9E24C80PQ\/1."},{"key":"ref_13","unstructured":"Curtis, P.D., Rowland, E.D., Curtis, G.B., and Dunn, J.A. (2000). Capsaicin-treated seed as a squirrel deterrent at birdfeeders. Wildlife Damage Management Conferences\u2014Proceedings, Internet Center for Wildlife Damage Management. Available online: https:\/\/digitalcommons.unl.edu\/icwdm_wdmconfproc\/18."},{"key":"ref_14","first-page":"265","article-title":"Comparison of Two Repellents for Reducing Deer Damage to Japanese Yews during Winter","volume":"15","author":"Conover","year":"1987","journal-title":"Wildl. Soc. Bull."},{"key":"ref_15","first-page":"271","article-title":"Efficacy of Ropel\u00ae as a coyote repellent","volume":"8","author":"Miller","year":"2014","journal-title":"Hum. Wildl. Interact."},{"key":"ref_16","unstructured":"Bonide Products LLC (2026, April 07). Shot-Gun Repels-All Animal Repellent. Available online: https:\/\/files.plytix.com\/api\/v1.1\/file\/public_files\/pim\/private\/assets\/43\/37\/8d\/5e\/5e8d3743202d9eba64d3af60\/texts\/07\/95\/42\/60\/60429507fcf3146d615d7689\/l240.pdf."},{"key":"ref_17","unstructured":"Liquid Fence (2026, April 03). Animal Repellent Ready-to-Use. Available online: https:\/\/sc10cdn.spectrumbrands.com\/-\/media\/project\/spectrumcommerce\/liquidfence\/files\/labels\/liquidfenceallpurposeanimalrepellentreadytouse_label_7204125b49_jul23_hg650075_1719685_1619686_32oz1.pdf?rev=aa7c71dd856249a18b057dd5842bfc80&hash=226CAE09464F31C32009752C90B5F0DA."},{"key":"ref_18","unstructured":"Posit Team (2025). RStudio: Integrated Development Environment for R. Posit Software, PBC. Available online: http:\/\/www.posit.co\/."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/26\/15\/4704\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,26]],"date-time":"2026-07-26T04:13:11Z","timestamp":1785039191000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/26\/15\/4704"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7,24]]},"references-count":18,"journal-issue":{"issue":"15","published-online":{"date-parts":[[2026,8]]}},"alternative-id":["s26154704"],"URL":"https:\/\/doi.org\/10.3390\/s26154704","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7,24]]}}}