Functional Morphology of the Tongue in the Domestic Goose (<i>Anser Anser f. Domestica</i>)

Jackowiak, Hanna; Skieresz‐Szewczyk, Kinga; Godynicki, S; Iwasaki, Shigeo; Meyer, Wilfried

doi:10.1002/ar.21447

Cited by 65 publications

(140 citation statements)

References 28 publications

(49 reference statements)

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“…The lingual nail stands out to the front and side of the apex and can act as a spoon for lifting grains. Similar observations have been made by Jackowiak et al (2011) in the domestic goose. Although the lingual nail is a hard keratinized structure, it is very flexible and efficient in collecting food (Homberger and Brush 1986).…”

Section: Discussionsupporting

confidence: 90%

“…The small conical papillae have a shape of plate directed to the bottom of the tongue and do not take part in the grazing. Comparing current data with observations made in the domestic goose (Jackowiak et al 2011), we can state the tongue in the domestic duck is less well adapted for cutting grass, because only the conical papillae in the caudal part of the body of the tongue are involved in this action. What may be due to the fact that grazing is not the main mechanism of feeding.…”

Section: Discussionsupporting

confidence: 79%

“…In the order of Anseriformes, two subfamilies can be distinguished: Anserinae and Anatidae. The morphological structure of the tongue and its functions in Anserinae have been described for example in goose (Iwasaki et al 1997; Jackowiak et al 2011). The tongue morphology in Anatidae subfamily has not been previously described in detail.…”

Section: Introductionmentioning

confidence: 99%

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Morphofunctional study of the tongue in the domestic duck (Anas platyrhynchos f. domestica, Anatidae): LM and SEM study

Skieresz‐Szewczyk

Jackowiak

2016

Zoomorphology

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The domestic duck, as a representative of birds living in the water, is considered as a specialist filter-feeder. Behavioral observations of foraging revealed that these birds also use a terrestrial feeding mechanism such as grazing and pecking. This study examined the entirety of the lingual mucosa in relation to the structural adaptations required for this range of feeding activities. The structures on the lateral surfaces of the tongue, the conical and filiform papillae, constitute the food filtration apparatus. The process of pecking involves the spatula-shaped apex of the tongue and a specific horny plate—the lingual nail. In the grazing mechanism, large conical papillae and lamellae in the beak are required. Structures engaged in intra-oral transport include the median groove, lingual combs, the rostral border of the lingual prominence and distinct rows of conical papillae on the lingual prominence. Two types of keratinized epithelia, the ortho- and parakeratinized epithelium, as well as nonkeratinized epithelium cover individual areas of the tongue. The rostral and caudal lingual glands present in the lamina propria of the body, lingual prominence and root of the tongue produce mucus. The specific arrangement of Grandry and Herbst corpuscles form so-called bill-tongue organ monitoring food transportation. Our research confirm that the lingual mucosa in domestic duck is characterized by microstructural species-specific modifications of particular areas of the tongue, which is formed not only under the influence of the filtering mechanism, but also by terrestrial feeding mechanisms such as grazing or pecking.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 79%

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Morphofunctional study of the tongue in the domestic duck (Anas platyrhynchos f. domestica, Anatidae): LM and SEM study

Skieresz‐Szewczyk

Jackowiak

2016

Zoomorphology

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“…Furthermore, no types of cell were detected in the submucosa of the tongue that could help determine the position of food on the tongue and subsequent direction of food passage as stated by Jackoviak et al (3).…”

Section: Discussionmentioning

confidence: 98%

Ultrastructure of the tongue and histochemical features of the lingual salivary glands in buzzards

2018

Turk J Vet Anim Sci

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The macroscopic characteristics of the tongues of 8 long-legged buzzards are described and scanning electron microscopy was used to examine the epithelial tissue of the tongue's surface. Crossman's modified triple staining method and hematoxylin and eosin dye were used to determine the locations and general histological features of the lingual salivary glands. The nature of the glandular secretions was examined by staining with PAS, AB pH 1.0, AB pH 2.5, and PAS-AB pH 1.0 and pH 2.5, and diastase enzyme digestion. PAS staining and weak, moderate, and strong methylation procedures as well as sialidase and hyaluronidase applications were performed. We report the finding of focal accumulations of the anterior lingual salivary glands at the tongue's base with numerous duct openings in this area. This finding, in conjunction with the absence of taste papillae in the tongue epithelium, suggests that the role of the tongue in buzzards is to mix food with saliva and to move the food bolus rapidly to the back of the oral cavity. The acidic secretions of the lingual salivary glands not only have antimicrobial effects but also facilitate the swallowing process and may influence the digestive process in the distal parts of the alimentary tract.

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“…Epithelial structures of the tongue in waterfowl have been found to be specialized for distinct feeding ecologies at both the macroscale and microscale (Kooloos et al 1989;Iwasaki et al 1997;Van Der Leeuw et al 2003;Jackowiak et al 2011). These findings are consistent with our morphometric analyses, in which the measurements of the bony elements distinguish distinct grazing and filter-feeding groups (Fig.…”

Section: Musculoskeletal Variation In the Anatid Hyoid Apparatusmentioning

confidence: 99%

The Craniolingual Morphology of Waterfowl (Aves, Anseriformes) and Its Relationship with Feeding Mode Revealed Through Contrast-Enhanced X-Ray Computed Tomography and 2D Morphometrics

Clarke

2015

Evol Biol

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Within Anseriformes, waterfowl (ducks, geese, and swans) exhibit three specialized feeding modes that are distinctive among Aves: filter-feeding with fine and dense keratinous lamellae on a flat, mediolaterally expanded bill; cropping or grazing vegetation with large and robust lamellae with a dorsoventrally expanded bill; and sharp lamellae associated with a narrow bill used in acquiring mixed invertebrates and fish underwater mainly by grasping. Here we assess morphometric variation in cranial and hyolingual structures as well as hyolingual myology in a diverse sample of Anatidae to explore the relationship of tongue variation and feeding mode. Phylogenetically informed principal component analysis (phyl.PCA) of cranial-lingual measurements for 67 extant and two extinct anatids recovers grazers and filter-feeding taxa in largely distinct areas of morphospace, while underwater graspers and other mixed feeders show less distinct clustering. The relationship between morphometric differences in skeletal features and muscular variation was further explored through a reassessment of hyolingual musculature enabled by contrast-enhanced X-ray computed tomography (CT) imagery acquired from three exemplar species (Branta canadensis, Chen caerulescens, and Aythya americana) with distinctive ecologies and morphologies of the bony hyoid. Data for these duck and geese exemplars reveal further significant, and previously unstudied, morphological differences between filter-feeding and grazing species. Grazers have a larger hyolingual apparatus with highlydeveloped extrinsic hyoid muscles; while filter-feeding species are characterized by relatively more diminutive extrinsic hyoid muscles and larger intrinsic hyoid muscles. The feeding modes of two extinct taxa (i.e., Presbyornis and Thambetochen) were also estimated from morphometric data. The results indicate a derived terrestrial browsing or grazing ecology for Thambetochen but do not unequivocally support a specialized filter-feeding ecology for Presbyornis, which is recovered with mixed feeders including swans. The combination of detailed, CT-mediated acquisition of fine muscular anatomy with morphometric approaches shows promise for illuminating form-function relationships in extant taxa more generally.

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Functional Morphology of the Tongue in the Domestic Goose (Anser Anser f. Domestica)

Cited by 65 publications

References 28 publications

Morphofunctional study of the tongue in the domestic duck (Anas platyrhynchos f. domestica, Anatidae): LM and SEM study

Morphofunctional study of the tongue in the domestic duck (Anas platyrhynchos f. domestica, Anatidae): LM and SEM study

Ultrastructure of the tongue and histochemical features of the lingual salivary glands in buzzards

The Craniolingual Morphology of Waterfowl (Aves, Anseriformes) and Its Relationship with Feeding Mode Revealed Through Contrast-Enhanced X-Ray Computed Tomography and 2D Morphometrics

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