Şükrü Hakan ATALGIN, Emine Ümran BOZKURT BÜYÜKÇOPUR, İbrahim KÜRTÜL

A detailed evaluation of the skeletal elements of the skull in the grey heron (Ardea cinerea)

This study was designed to reveal, in detail, the features of the skull bones in the grey heron, a species of the family Ardeidae, and to compare the findings with previous related literature reports and with Nomina Anatomica Avium. The articulation between the nasal and frontal bones was observed to be through the movable frontonasal joint. The upper beak fused with the neurocranium via this joint and with the palatine and vomer. It was also bound indirectly through the zygomatic bone articulating with the quadrate bone. The frontal bone possessed the frontal depression dorsally. Wideness of the frontal bone and supranasal pila seemed to be unique for the grey heron. The quadrate bone was observed to play a primary role in the beak action. No medial process was present in the mandible.Overall, the results hereby indicate that the wider jaw opening and sharp and pointed nature of the beaks in the grey heron enable it to feed on such creatures as fish, frogs, and crustaceans.

Anahtar Kelimeler:

Grey heron, skull bones

A detailed evaluation of the skeletal elements of the skull in the grey heron (Ardea cinerea)

Keywords:

Grey heron, skull bones,

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Dursun N. Evcil Kuşların Anatomisi. Ankara, Turkey: Medisan Yayınevi; 2002 (in Turkish).
Baumel JJ. Handbook of Avian Anatomy. Nomina Anatomica Avium. 2nd ed. Cambridge, MA, USA: Nuttall Ornithological Club; 1993.
Bock WJ. Kinetics of the avian skull. J Morphol 1964; 114: 1–42.
Bühler P. Functional Anatomy of the Avian Jaw Apparatus Form and Function in Birds, Vol. 2. New York, NY, USA: Academic Press; 1981.
Zusi RL. Patterns of Diversity in the Avian Skull. In: Hanken J, Hall BK, editors. The Skull: Patterns of Structural and Systematic Diversity. Vol. 2. Chicago, IL, USA: University of Chicago Press; 1993. pp. 391–437.
Hoese WJ, Westneat MW. Biomechanics of cranial kinesis in birds: testing linkage models in the white-throated sparrow (Zonotrichia albicollis). J Morphol 1996; 227: 305–320.
Meekangvan P, Barhorsta AA, Burtona TD, Chatterjee S, Schovanec L. Nonlinear dynamical model and response of avian cranial kinesis. J Theor Biol 2006; 240: 32–47.
Gussekloo SWS, Vosselman MG, Bout RG. Three- dimensional kinematics of skeletal elements in avian prokinetic and rhynchokinetic skulls determined by roentgen stereophotogrammetry. J Exp Biol 2001; 204: 1735–1744.
Lobon JM, Buscalioni AD. Avian skull morphological evolution: exploring exo- and endocranial covariation with two-block partial least squares. Zoology 2006; 109: 217–230.
Payne RB, Risley CJ. Systematics and evolutionary relationships among the herons (Ardeidae). No. 150. University Of Michigan, MI, USA: Miscellaneous Publicatıons Museum of Zoology; 1976.
Pascotto MC, Donatelli RJ. Cranial osteology in Momotidae (Aves: Coraciiformes) J Morphol 2003; 258: 32–48.
Çakır A. Kelaynak kuşunda (Geronticus eremita) neurocranium kemikleri. J Turkish Vet Med Assoc 2001; 72: 35–38.