e-journal

Shifts in Subsistence Type and Its Impact on the Human Skull’s Morphological Integration

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Objective: Here we evaluate morphological integration patterns and magnitudes in different skull regions to detect
if shifts in morphological integration are correlated to the appearance of more processed (softer) diets.
Methods: To do so, three transitional populations were analyzed, including samples from groups that inhabited the
same geographical region and for which the evidence shows that major changes occurred in their subsistence mode.
Ninety three-dimensional landmarks were digitized on 357 skulls and used as the raw data to develop geometric morphometric analyses. The landmark coordinates were divided into several different regions of biomechanical interest,
following a three-level hierarchically nested scheme: the whole skull, further subdivided into neurocranium (divided
into the vault and basicranium), the facial (divided into the lower and upper facial), and the masticatory apparatus
(divided into alveolar, temporal, and temporo-mandibular joint). Results: Our results indicate that the morphological integration and variability patterns significantly vary across skull regions but are maintained across the transitions. The alveolar border and the lower facial are the regions manifesting greater value of morphological integration and variability, while the upper facial, the temporo-mandibular joint, and the basicranium are highly integrated and poorly variable. Conclusions: The transition to softer diets increased morphological variation across cranial regions that are more
exposed to masticatory strains effects.

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Ketersediaan

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Informasi Detail

Judul Seri

American Journal Of Human Biology

No. Panggil

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Penerbit

: Wiley Periodicals., 2016

Deskripsi Fisik

American Journal Of Human Biology 28:118–128 (2016)

Bahasa

English

ISBN/ISSN

DOI: 10.1002/ajhb.22

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

BIOLOGI

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

Lampiran Berkas

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