{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T19:29:49Z","timestamp":1791228589301,"version":"4.1.0"},"reference-count":46,"publisher":"The Company of Biologists","issue":"11","license":[{"start":{"date-parts":[[2000,6,1]],"date-time":"2000-06-01T00:00:00Z","timestamp":959817600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/www.biologists.com\/user-licence-1-1\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2000,6,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n               <jats:p>A number of anatomical characters of crocodilians appear to be inconsistent with their lifestyle as sit-and-wait predators. To address this paradoxical association of characters further, we measured lung ventilation and respiratory gas exchange during walking in American alligators (Alligator mississippiensis). During exercise, ventilation consisted of low-frequency, large-volume breaths. The alligators hyperventilated severely during walking with respect to their metabolic demands. Air convection requirements were among the highest and estimates of lung PCO2 were among the lowest known in air-breathing vertebrates. Air convection requirements dropped immediately with cessation of exercise. These observations indicate that the ventilation of alligators is not limited by their locomotor movements. We suggest that the highly specialized ventilatory system of modern crocodilians represents a legacy from cursorial ancestors rather than an adaptation to a lifestyle as amphibious sit- and-wait predators.<\/jats:p>","DOI":"10.1242\/jeb.203.11.1671","type":"journal-article","created":{"date-parts":[[2021,4,25]],"date-time":"2021-04-25T05:36:27Z","timestamp":1619328987000},"page":"1671-1678","source":"Crossref","is-referenced-by-count":54,"title":["Ventilation And Gas Exchange During Treadmill Locomotion in The American Alligator (<i>Alligator Mississippiensis<\/i>)"],"prefix":"10.1242","volume":"203","author":[{"given":"Colleen G.","family":"Farmer","sequence":"first","affiliation":[{"name":"1 Department of Ecology and Evolutionary Biology, 321 Steinhaus Hall, University of California, Irvine, CA 92697, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David R.","family":"Carrier","sequence":"additional","affiliation":[{"name":"2 Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112-0840, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"237","published-online":{"date-parts":[[2000,6,1]]},"reference":[{"key":"2024121804554160700_JEXBIO_203_11_1671C1","doi-asserted-by":"publisher","first-page":"69","DOI":"10.1111\/j.2042-3306.1982.tb02340.x","article-title":"Time relationship between the respiratory cycle and limb cycle in the horse","volume":"14","author":"Attenburrow","year":"1982","journal-title":"Equine Vet. 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