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Hypoxic animals developed a characteristic breathing pattern in which discrete periods of lung ventilations alternated with buccal oscillations or respiratory pauses. A pronounced bradycardia was associated with the concomitant decline of inspired and arterial . Although respiratory rates were greater than normal resting values in the initial stages of post-hypoxia, the pre-exposure breathing pattern was quickly restored. Following recovery from bradycardia (60 min), the breathing rates, arterial blood gases and pHa returned to normal within 30 min.<\/jats:p>","DOI":"10.1242\/jeb.68.1.99","type":"journal-article","created":{"date-parts":[[2021,4,25]],"date-time":"2021-04-25T15:12:08Z","timestamp":1619363528000},"page":"99-107","source":"Crossref","is-referenced-by-count":50,"title":["The Effect of Progressive Hypoxia on Respiration in the Toad <i>Bufo Marinus<\/i>"],"prefix":"10.1242","volume":"68","author":[{"given":"Robert G.","family":"Boutilier","sequence":"first","affiliation":[{"name":"Acadia University Department of Biology , , Wolfville BoP 1Xo, Nova Scotia, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel P.","family":"Toews","sequence":"additional","affiliation":[{"name":"Acadia University Department of Biology , , Wolfville BoP 1Xo, Nova Scotia, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"237","published-online":{"date-parts":[[1977,6,1]]},"reference":[{"key":"2022121907003325100_JEXBIO_68_1_99C1","doi-asserted-by":"publisher","first-page":"447","DOI":"10.1016\/0300-9629(71)90308-2","article-title":"Some physiological responses to anoxia in the great plains toad, Bufo cognatut","volume":"39","author":"Armentrout","year":"1971","journal-title":"Comp. 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