Die phylogenetischen Beziehungen des Schuhschnabels (Balaeniceps rex)

Mayr, Gérald

doi:10.1007/bf02465644

Cited by 33 publications

(55 citation statements)

References 35 publications

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“…Ptilopachus is outside Phasianidae, as sister group to Odontophoridae; Alectura is nested within Aepypodius; complex rearrangements within Phasianidae (88-110) Anseriformes Dendrocygna, Bucephala and Nettapus are paraphyletic; many deeper branches remain unresolved (97,109,(111)(112)(113)(114)(115)(116) (66,67,87,(135)(136)(137)(138)(139)(140)(141)(142)(143)(144)(145) …”

Section: Galliformesmentioning

confidence: 99%

An Update of Wallace’s Zoogeographic Regions of the World

Holt

Lessard

Borregaard

et al. 2013

Science

1,092

1,182

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Modern attempts to produce biogeographic maps focus on the distribution of species, and the maps are typically drawn without phylogenetic considerations. Here, we generate a global map of zoogeographic regions by combining data on the distributions and phylogenetic relationships of 21,037 species of amphibians, birds, and mammals. We identify 20 distinct zoogeographic regions, which are grouped into 11 larger realms. We document the lack of support for several regions previously defined based on distributional data and show that spatial turnover in the phylogenetic composition of vertebrate assemblages is higher in the Southern than in the Northern Hemisphere. We further show that the integration of phylogenetic information provides valuable insight on historical relationships among regions, permitting the identification of evolutionarily unique regions of the world.

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Section: Galliformesmentioning

confidence: 99%

An Update of Wallace’s Zoogeographic Regions of the World

Holt

Lessard

Borregaard

et al. 2013

Science

1,092

1,182

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“…However, its phylogenetic position has remained unclear, since the intermediate feature of stork-like and pelican-like forms was confirmed in the shoebill [2][3][4]. Recently the morphological characteristics [4,5] and the molecular phylogenetic data [6] have pointed out that the shoebill is closely related to the pelicans (Pelicanidae or Pelecanus), whereas the biochemical traits of the biliary bile acid indicated the genetic affinities between the shoebill and herons [7]. However, morphological characteristics that functionally support the behavior peculiar to this species have disturbed us to reveal the evolutionary history of the shoebill.…”

Section: Introductionmentioning

confidence: 99%

Functional Morphology of the Enlarged Pharynx and Hyoid Bone of the Shoebill

Endo

Yamasaki

Mori

et al. 2014

Jpn. J. Zoo Wildl. Med.

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The cavity of the pharynx and hyoid bone of the shoebill (Balaeniceps rex) were examined by using the three dimensional computed tomography image analysis. The pharynx and the cranial part of the esophagus were extraordinarily bilaterally enlarged. The unfixed flexible hyoid bone and degenerated tongue were discerned. We suggest that these morphological characteristics functionally enable the species to receive the large prey item peculiar to the feeding behavior of the shoebill. The structure of the pharynx region may totally act as a flexible pouch to pass the large food to the alimentary tract. The bilateral asymmetry was also confirmed in the hyoid bone, cavities of the pharynx and cranial esophagus. We think that these asymmetrical forms may also contribute to the deglutition of large prey fish in the shoebill. MATERIALS AND METHODSA male shoebill (Balaeniceps rex) used in this study has been kept in Chiba Zoological Park (Chiba, Japan) and was donated RESULTSThe hyoid bone was surrounded and covered with M. intermandibularis ( --23Pharynx of shoebill area of the skull. The neck also inclined to right side in the most cranial area (Fig. 2). The rostral part of the trachea also ran in the right side with the rostral part of the hyoid bone.The most cranial part of the esophagus was bilaterally widened from ventral aspect (Fig. 2).The 3D reconstructed images after partially rejecting soft parts are shown from lateral and ventral aspects (Fig. 3) 4B, 4C, 5B and 5C), the shape of the cavities did not change in the caudal part from the Aditus larynges between the closing and opening statuses of the mandible. Although the bundles of M. pterygoideus were latero-ventrally pulled according to the angle of the mandible, the hyoid bone fixed the shape of the caudal oral and pharyngeal cavities ( Fig. 4B and 5B). DISCUSSIONSince the aves without teeth cannot crush food during the mastication, the other morphological or functional adaptation is needed to the feeding action. For example, the large size of the food item requires the ballistic food transport in toucans and hornbills as a functional adaptation of deglutition [10,11].The shoebill ambushes and preys on large fish such as marbled lungfish or Senegal birch of 15-50 cm in body length, after it remained statue-like still for long periods as mimicry [8]. As the size of a single food item is larger in this feeding behavior, the mechanism of the deglutition mechanism should be functional-morphologically adapted to the large-sized prey. In this study, the enlargement of the cavities of the pharynx and cranial esophagus could be confirmed from 3D reconstructed images. The large beak and bilaterally enlarged pharynx and esophagus enable the species to pass large prey items to the alimentary tract. From the CT images, we demonstrated that the hyoid bone fixed the shape of the enlarged pharynx in both statuses of the closing and opening mandible.The degenerated tongue indicated by Mitchell [12] may also contribute to the enlarged space in caudal area of the ...

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“…As filogenias mais recentes disponíveis para o grupo (Sheldon, 1987;Sheldon et al, 1995Sheldon et al, , 2000 indicam três diferentes grupos (componentes) na família: um componente basal com os Esta espécie, também considerada na análise, possui sua posição sistemática indefinida, originalmente agrupada aos Ciconiidae, mas novos dados resgatam a idéia de que tal ave possa estar mais relacionada aos Pelecaniformes (Cottam, 1957;Mayr, 2003 (Matheu & Del Hoyo, 1992).…”

Section: Família Ardeidaeunclassified

“…Foi corroborada a relação próxima entre Scopidae e Balaeniciptidae, recuperada por Mayr (2003), apesar da ausência dos grupos constituintes dos Steganopodes (Phalacrocoracidae, Anhigidae, Sulidae, Pelecanidae e Fregatidae), também relacionados a eles.…”

Section: Considerações Filogenéticas Dos Grupos Relacionadosunclassified

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Análise filogenética de Cathartidae (Aves) com base em caracteres osteológicos

Brito¹

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Die phylogenetischen Beziehungen des Schuhschnabels (Balaeniceps rex)

Cited by 33 publications

References 35 publications

An Update of Wallace’s Zoogeographic Regions of the World

An Update of Wallace’s Zoogeographic Regions of the World

Functional Morphology of the Enlarged Pharynx and Hyoid Bone of the Shoebill

Análise filogenética de Cathartidae (Aves) com base em caracteres osteológicos

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