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Dr. 
Patrick Lemell

mail: patrick.lemell@univie.ac.at

From November 1998 to December 2001, I was research assistant at my department, working within our first turtle project
"Feeding Patterns in Turtles: Evolution under the Pressure of Morphological and Physical Constraints?!"

After a long break with non-biological stuff, I started writing a new project with my colleague Christian Beisser and finally, in November 2007, our second turtle project "Functional ontogeny and plasticity of turtle feeding: Do the young ones as the adult ones do?" was initiated. Within this project two diploma students could be employed as reasearch assistants.

Within both projects anatomy as well as kinematics of the feeding apparatus of different turtle species adapted to different media was examined. My interest focused mainly on gross morphology and kinematics (highspeed film analysis). My main drive for starting the latest project was to earn some money for an own highspeed camera, and we are really happy to have now one of the best on the market. But the best camera is nothing without a good operator, and I think we have managed to bring the best output of this equipment. Fortunately the crucial role of all these filmings was occupied by turtles - these animals are quite easy to handle and of course always hungry. My favorite object was always and is still the Matamata turtle Chelus fimbriatus, a really amazing animal regarding its anatomy and kinematics as well.

Since 2004 I was able to get a lecture about biomechanics in vertebrates and since 2009 a practical course was initiated by Josef Weisgram and myself combining highspeedfilming with anatomy, so a biomechanical course was established where all important vertebrate goups are analysed by filming and dissections.

Right now I´m planning to apply for another project with my colleague CB, has nothing to do with turtles, but hopefully still with a lot of filming and possibly some other biomechanic stuff.

 

Grants

FWF-Project P20094-BIO (11/2007 – 07/2011, Main PI: J. Weisgram)
"Functional ontogeny and plasticity of turtle feeding: Do the young ones as the adult ones do?"
project design und co-PI: C. Beisser, P. Lemell

FWF-Projekt P12991-BIO (06/1998 – 12/2001, PI: J. Weisgram)
"Feeding Patterns in Turtles: Evolution under the Pressure of Morphological and Physical Constraints?!"
project design: C. Beisser, P. Lemell, R. Wochesländer

 

Publications

* Theses

Heiss E, Natchev N, Schwaha T, Salaberger D, Lemell P, Beisser CJ, Weisgram J. 2011. Oropharyngeal morphology in the basal tortoise Manouria emys emys with comments on form and function of the testudinid tongue. Journal of Morphology 272: 1217-1229 [cover image]

Lemell P, Beisser CJ, Gumpenberger M, Snelderwaard P, Gemel R, Weisgram J. 2010. The feeding apparatus of Chelus fimbriatus (Pleurodira; Chelidae) - adaptation perfected? Amphibia-Reptilia 31: 97-107
 
Heiss E, Natchev N, Beisser CJ, Lemell P, Weisgram J. 2010. The fish in the turtle: On the functionality of the oropharynx in the common musk turtle Sternotherus odoratus (Chelonia, Kinosternidae) concerning feeding and underwater respiration. The Anatomical Record 293: 1416-1424
 
Natchev N, Lemell P, Heiss E, Beisser CJ, Weisgram J. 2010. Aquatic feeding in a terrestrial turtle: a functional-morphological study of the feeding apparatus in the Indochinese box turtle Cuora galbinifrons (Chelonia, Geoemydidae). Zoomorphology 129: 111-119

Natchev N, Heiss E, Lemell P, Kummer S, Schwaha T, Weisgram J. 2009. Kinematical analysis of animal behaviour - the challenge to increase the frame rate in digital high - speed cinematography. Biotechnology & Biotechnological Equipment  23SE: 117-120

Natchev N, Heiss E, Lemell P, Stratev D, Weisgram J. 2009. Analysis of prey capture and food transport kinematics in two Asian box turtles, Cuora amboinensis and Cuora flavomarginata (Chelonia, Geoemydidae), with emphasis on terrestrial feeding patterns. Zoology. 112: 113-127

Beisser CJ, Lemell P, Weisgram J. 2004: The dorsal lingual epithelium of Rhinoclemmys pulcherrima incisia (Chelonia, Cryptodira). The Anatomical Record Part A 277A: 227-235

Lemell P, Lemell C, Snelderwaard P, Gumpenberger M, Wochesländer R, Weisgram J. 2002. Feeding Patterns of Chelus fimbriatus (Pleurodira: Chelidae). The Journal of Experimental Biology 205: 1495-1506

* Lemell P. 2001. Nahrungsaufnahme pleurodirer Schildkröten: ein Vergleich
zwischen Pelusios castaneus und Chelus fimbriatus. Ph.D. Thesis, University of Vienna.

Beisser CJ, Lemell P, Weisgram J. 2001. Light and electron microscopy of the dorsal lingual epithelium of Pelusios castaneus (Pleurodira, Chelidae) with special respect to its feeding mechanics. Tissue & Cell 33 (1): 63-71

Lemell P. 2000. Allgemeine Anatomie der Schildkröten (Chelonia). Stapfia 69 (Kataloge d. oö. Landesmuseums, neue Folge Nr. 149): 1-12

Lemell P, Beisser CJ, Weisgram J. 2000. Morphology and function of the feeding apparatus of Pelusios castaneus (Chelonia; Pleurodira). Journal of Morphology 244: 127-135

* Lemell P. 1997. Zum Mechanismus der Nahrungsaufnahme von Pelusios castaneus (Chelonia: Pleurodira). Diploma Thesis, University of Vienna.

Lemell P, Weisgram J. 1997. Feeding patterns of Pelusios castaneus (Chelonia: Pleurodira). Netherlands Journal of Zoology 47: 429-441

 

Published Abstracts

Natchev N, Heiss E, Lemell P, Weisgram J. 2009. Diversity in terrestrial food uptake strategies within testudinoids (Chelonia; Cryptodira). Comparative Biochemistry and Physiology A 153:94-95

Natchev N, Heiss E, Lemell P, Weisgram J. 2008. Kinematic analysis of prey capture, prey transport and swallowing in the common musk turtle Sternotherus odoratus (Chelonia, Kinosternidae). Comparative Biochemistry and Physiology A 150: 95

Natchev N, Lemell P, Weisgram J. 2007. Feeding patterns of asian box turtles - a comparative study on Cuora amboinensis and Cuora flavomarginata (Chelonia, Emydidae). Journal of Morphology 268: 1110

Natchev N, Lemell P, Weisgram J. 2007. Feeding Patterns in Cuora galbinifrons (Bourret, 1939). Journal of Morphology 268: 1110

Lemell P. 2001. Feeding in Chelus fimbriatus – Morphology and Kinematics. Journal of Morphology 248: 255

Weisgram J, Beisser CJ, Lemell P, Wochesländer R. 2001. Aquatic versus terrestrial - which is the primitive turtle feeding mode? Journal of Morphology 248: 299

Lemell P. 1998. Aquatic feeding modes in two different turtle species - a comparison. In: Proceedings of the International Workshop on "The Morphology of Cranial and Cervical Systems in Vertebrates", Tübingen 1998: 42

Lemell P, Beisser CJ, Weisgram J. 1997. Feeding patterns of Pelusios castaneus (Chelonia: Pleurodira) with comments on the morphology of its tongue. Journal of Morphology 232: 285

Beisser CJ, Lemell P, Weisgram J. 1997. Morphology of the tongue surface of Pelusios castaneus (Chelonia: Pleurodira) with comments on its function. Journal of Morphology 232: 233

Lemell P, Weisgram J. 1996. The feeding patterns of Pelusios adansonii (Chelonia: Pleurodira). In: Proceedings of the Workshop "The functional anatomy of cranial and cervical systems", Leiden 1996

 

Congresses and Meetings

Lemell P, Heiss E, Natchev N, Weissenbacher A, Gumpenberger M, Weisgram J. 2010. Clash of the titans – Chelydra serpentina versus Chelus fimbriatus. 9. International Congress of Vertebrate Morphology. Punta del Este, Uruguay.

Natchev N, Heiss E, Lemell P, Beisser CJ, Weisgram J. 2010. Ecomorphology and  function of the feeding apparatus in geoemydids and tortoises (Testudines, Cryptodira). 9. International Congress of Vertebrate Morphology.Punta del Este, Uruguay.

Natchev N, Heiss E, Lemell P, Weisgram J. 2009. Diversity in terrestrial food uptake strategies within testudinoids
(Chelonia; Cryptodira). SEB Annual Main Meeting. Glasgow, England.

Natchev N, Heiss E, Lemell P, Weisgram J. 2008. Kinematic analysis of prey capture, prey transport and swallowing in the common musk turtle Sternotherus odoratus (Chelonia, Kinosternidae). SEB Annual Main Meeting. Marseille, France.

Natchev N, Lemell P, Weisgram J. 2007. Feeding patterns of asian box turtles - a comparative study on Cuora amboinensis and Cuora flavomarginata (Chelonia, Emydidae). 8. International Congress of Vertebrate Morphology. Paris, France.

Natchev N, Lemell P, Weisgram J. 2007. Feeding Patterns in Cuora galbinifrons (Bourret, 1939). 8. International Congress of Vertebrate Morphology. Paris, France.

Weisgram J, Beisser CJ, Lemell P, Wochesländer R. 2002. Different food ingestion modes in turtles - a comparison. Congress "Shaping Up, the Evolution of Animal Form". Leiden, Netherlands.

Lemell P. 2001. Feeding in Chelus fimbriatus – Morphology and Kinematics. 6. International Congress of Vertebrate Morphology. Jena, Germany.

Weisgram J, Beisser CJ, Lemell P, Wochesländer R. 2001. Aquatic versus terrestrial - which is the primitive turtle feeding mode? 6. International Congress of Vertebrate Morphology. Jena, Germany.

Lemell P. 1998. Aquatic feeding modes in two different turtle species - a comparison. International Workshop "The Morphology of Cranial and Cervical Systems in Vertebrates". Tübingen, Germany.

Lemell P, Beisser CJ, Weisgram J. 1997. Feeding patterns of Pelusios castaneus (Chelonia: Pleurodira) with comments on the morphology of its tongue. 5. International Congress of Vertebrate Morphology. Bristol, England.

Beisser CJ, Lemell P, Weisgram J. 1997. Morphology of the tongue surface of Pelusios castaneus (Chelonia: Pleurodira) with comments on its function. 5. International Congress of Vertebrate Morphology. Bristol, England.

Lemell P, Weisgram J. 1996. The feeding patterns of Pelusios adansonii (Chelonia: Pleurodira). Workshop "The functional anatomy of cranial and cervical systems". Leiden, Netherlands.

 

National & international cooperations

Richard Gemel
Museum of Natural History, Vienna, Austrian Herpetological Society (ÖGH)

Ass.-Prof. Dr.med.vet. Michaela Gumpenberger
University of Veterinary Medicine, Vienna, Clinic of Radiology

Anton Weissenbacher
Zoo Vienna

Prof. Dr. Gart Zweers
Leiden University, Netherlands, Institute of Evolutionary and Ecological Sciences

Prof. Dr. V. Bels
Museum National d'Histoire Naturelle, Paris, France

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