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Phyllostomids have a nose for good food Digital endocasts of New world leaf-nosed bats indicate dietary preference Project ID: 000442636 Public
55 Media · 29 Specimens · Managed by: Allen Chochinov

Phyllostomidae (New World leaf-nosed bats) are a diverse family with members practicing a variety of diets, including insectivory, frugivory, nectarivory, and hematophagy. This diversity of diet is reflected in their sensory systems, particularly their sense of olfaction, and is key to the success of this clade. We assess the extent to which a more specialized olfactory system can be detected in observation of the brain through digital endocasts. Such as relationship would allow for the later diagnosis of olfactory ability in bats using only the skull and computed tomography. High-resolution X-ray computed tomography (microCT) scans of the skulls of 11 species of phyllostomid, 2 mormoopids, and a pteropodid bat were used to produce digital endocasts to quantify the variation in the olfactory bulbs and make additional comparisons of the full cranial endocasts. Accurate linear and volumetric measurements of the olfactory bulbs and the remainder of the endocasts were then gathered for comparison between the selected species. Principal component analyses (PCA) show a strong separation of frugivorous, insectivorous, and hematophagous species as well as a significant difference in olfactory bulb volume. Furthermore, ancestral character state reconstructions show that a relatively large olfactory bulb may be the ancestral condition of phyllostomids. Diet can be reliably predicted from endocast measurements, thus providing a framework for further assessment of fossil or extant bats.

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  ID Part Object Taxonomy Type Date Added Publication Status  
000448025 usnm:mammals:USNM 362394 Glyphonycteris sylvestris Volumetric Image Series 2022-06-27 Open Download  
000453771 usnm:mammals:USNM 393758 Ametrida centurio Volumetric Image Series 2022-08-02 Open Download  
000453877 Skull usnm:mammals:USNM 508478 Mormoops megalophylla Volumetric Image Series 2022-08-02 Open Download  
000453845 Skull usnm:mammals:USNM 564667 Glossophaga soricina Volumetric Image Series 2022-08-02 Open Download  
000453856 Skull usnm:mammals:USNM 549339 Lonchorhina aurita Volumetric Image Series 2022-08-02 Open Download  
000452220 usnm:mammals:USNM 362450 Phyllostomus discolor discolor Volumetric Image Series 2022-07-26 Open Download  
000453819 Skull usnm:mammals:USNM 409320 Desmodus rotundus Volumetric Image Series 2022-08-02 Open Download  
000454705 Endocast usnm:mammals:USNM 393758 Ametrida centurio Mesh 2022-08-05 Open Download  
000457002 Endocast usnm:mammals:USNM 590160 Balionycteris maculata Mesh 2022-08-16 Open Download  
000456999 Endocast usnm:mammals:USNM 362394 Glyphonycteris sylvestris Mesh 2022-08-16 Open Download  
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