{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T03:48:52Z","timestamp":1784260132635,"version":"3.55.0"},"reference-count":70,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,5,15]],"date-time":"2024-05-15T00:00:00Z","timestamp":1715731200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["NSERC\u2010IRC"],"award-info":[{"award-number":["NSERC\u2010IRC"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Insect Science"],"published-print":{"date-parts":[[2025,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Distressed western carpenter ants, <jats:italic>Camponotus modoc<\/jats:italic>, produce alarm pheromone and substrate\u2010borne vibrations. The alarm pheromone attracts nestmates but the effects of vibratory signals, or of bimodal pheromonal and vibratory signals, are not known. Worker ants of two <jats:italic>Camponotus<\/jats:italic> congeners reportedly stand still (\u201cfreeze\u201d) or run fast in response to engineered drumming vibrations inputted on plastic, but many responses to ant\u2010produced vibratory signals on wood have not yet been investigated. Generally, orientating toward signalers under vertebrate predator attack seems maladaptive and not beneficial to ant colonies. We tested the hypotheses (1) that vibratory alarm signals cause freezing, rapid running but not attraction of nestmates, and (2) that bimodal alarm signals modulate responses to monomodal alarm signals, thereby possibly reducing predation risk. Laser Doppler vibrometry recordings revealed that the ants\u2019 vibratory signals readily propagate through ant nest lamellae, and thus quickly inform nest mates of perceived threats. With a speaker modified to record and deliver vibratory signals, we obtained drumming signals of distressed ants on a Douglas fir veneer, and bioassayed signal effects on ants in an arena with a suspended veneer floor. In response playback of vibratory signals, ants ran rapidly, or froze, but did not approach the vibratory signals. Exposed to alarm pheromone, ants frequently visited the pheromone source. However, concurrently exposed to both alarm pheromone and vibratory signals, ants visited the pheromone source less often but spent more time \u201cfrozen.\u201d The ants\u2019 modulated responses to bimodal signals seem adaptive but the reproductive fitness benefits are still to be quantified.<\/jats:p>","DOI":"10.1111\/1744-7917.13375","type":"journal-article","created":{"date-parts":[[2024,5,15]],"date-time":"2024-05-15T08:33:34Z","timestamp":1715762014000},"page":"343-355","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Bimodal alarm signals modulate responses to monomodal alarm signals in <i>Camponotus modoc<\/i> carpenter ants"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4082-5934","authenticated-orcid":false,"given":"Asim","family":"Renyard","sequence":"first","affiliation":[{"name":"Department of Biological Sciences Simon Fraser University  Burnaby British Columbia 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