Emma Schachner
Emma Rose Schachner is an American physiologist and paleontologist who studies the lung physiology of archosaurs. Schachner is an Assistant Professor in the Department of Physiology at the University of Florida College of Veterinary Medicine.
Schachner earned her Ph.D. under paleontologist Peter Dodson at the University of Pennsylvania where she described the postcranial anatomy of the pseudosuchian, Poposaurus gracilis.[1][2]
Schachner worked as a postdoctoral associate in the comparative physiology lab of Dr. Colleen G. Farmer at the University of Utah, where it was discovered that alligators had unidirectional airflow in their lungs.[3] Schachner went on to describe unidirectional flow in the lungs of Nile crocodiles[4] and was part of the team that discovered unidirectional flow in squamates.[5][6][7] Schachner is considered a leading expert in archosaur respiratory physiology[8] and was the first to define osteological correlates for lung tissue in dinosaurs.[9][10] Schachner's lab describes lung and air sac diversity among extant birds and how these shapes affect their biological performance.[11][12][13] Schachner has argued that air sacs are unrelated to unidirectional airflow in dinosaurs and likely provided functions unrelated to respiration.[14] [15] Her lab discovered a unique function for the subpectoral diverticulum in soaring for several species of birds.[11] Schachner is the daughter of children's book author, Judith Byron Schachner and the sister of composer, Sarah Schachner.[16]
References
- ↑ Schachner, ER., Manning, PL., Dodson, P. 2011.Pelvic and hindlimb myology of the basal archosaur Poposaurus gracilis (Archosauria: Poposauroidea). Journal of Morphology. 272:1464–1491.
- ↑ Gauthier, JA., Nesbitt, SJ., Schachner, ER., Bever, GS., Joyce, WG. 2011. The bipedal stem crocodilian Poposaurus gracilis: Inferring functions in fossils and innovation in archosaur locomotion. Bulletin of the Peabody Museum of Natural History. 52(1):107–126.
- ↑ Farmer, CG., Sanders, K. 2010. Unidirectional airflow in the lungs of alligators. Science 327(5963):338–340.
- ↑ Schachner, ER., Hutchinson, JR., Farmer, CG. 2013. Pulmonary anatomy in the Nile crocodile and the evolution of unidirectional airflow in Archosauria. PeerJ 1:e60.
- ↑ Schachner, ER., Cieri, RL., Butler, J., Farmer CG. 2014. Unidirectional pulmonary airflow patterns in the savannah monitor lizard. Nature 506(7488):367–370.
- ↑ Cieri, RL., Craven, BA., Schachner, ER., Farmer CG. 2014. New insight into the evolution of the vertebrate respiratory system and the discovery of unidirectional airflow in iguana lungs. Proceedings of the National Academy of Sciences 111(48):17218–17223.
- ↑ "Why lizards have bird breath: Iguanas evolved one-way lungs surprisingly like those of birds". 17 November 2014. Retrieved 2025-06-07.
- ↑ "Welcome Dr. Emma Schachner". Retrieved 2025-06-06.
- ↑ Schachner ER., Lyson, TR., Dodson, P. 2008. Evolution of the respiratory system in nonavian theropods: Evidence from rib and vertebral morphology. The Anatomical Record 292(9):1501–1513.
- ↑ Schachner ER., Farmer, CG., McDonald, AT., Dodson, P. 2011. Evolution of the dinosauriform respiratory apparatus: New evidence form the postcranial axial skeleton. The Anatomical Record 294(9):1532–1547.
- ↑ 11.0 11.1 Schachner, ER., Moore, AJ., Martinez, A., Diaz, RE., Echols, MS., Atterholt, J., Kissane, RWP, Hedrick BP., Bates, KT. 2024. The respiratory system influences flight mechanics in soaring birds. Nature 630(8017):671–676.
- ↑ Lawson, AB., Martinez, A., Hedrick BP., Echols, MS., Schachner ER. 2025. Variation in air sac morphology and postcranial skeletal pneumatization patterns in the African grey parrot. Journal of Anatomy 246:1–19.
- ↑ "An air-filled sac within birds' lungs is believed to modify mechanics of flight while soaring". 12 June 2024. Retrieved 2025-06-07.
- ↑ "Think you know why dinosaurs dominated? Think Again (TEDx talk)". 21 August 2019. Retrieved 2025-06-06.
- ↑ Schachner ER., Moore AJ. 2023. Unidirectional airflow, air sacs or the horizontal septum: what does it take to make a bird lung?. Philosophical Transactions of the Royal Society B. 380:20230418.
- ↑ "Raccoons, ribbons, and misfit toys: Inside the Swarthmore home of author Judy Schachner" (PDF). Retrieved 2025-06-07.
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