NDLI: A cranial morphometric study of deer (Mammalia, Cervidae) from Argentina using three-dimensional landmarks

Content Provider	Springer Nature Link
Author	Merino, MariaL. Milne, Nick Vizcaíno, Sergio F.
Copyright Year	2005
Abstract	This study examines morphological variation in the crania (n = 70) of eight cervid species from Argentina. Forty 3-dimensional landmarks were acquired on each adult cervid cranium. The data were analysed using Morphologika software. The co-ordinates were registered and scaled to remove size differences by Procrustes analysis, and then principal components analysis was applied to examine shape variation. Shape variation associated with each principal component can be visualised in the program. The first principal component correlates strongly with the centroid size of the crania and also with the body mass and height of each species. The larger species were distinguished by relatively longer snouts and relatively smaller brains. The smallerMazama andPudu species cluster closely on the first as well as the other principal components. Among the larger species, the twoHippocamelus species, which live at higher altitudes, were clearly distinguished from the lowland species,Ozotoceros bezoarticus andBlastocerus dichotomus, on the basis of cranial flexion and the orientation of the occipital region. FinallyO. bezoarticus andB. dichotomus were compared directly and small differences were noted in the orbital region. The shape data was used to produce a distance matrix and a phenogram, which we relate to some of currently accepted phylogenetic relationships of this group of cervids.
Starting Page	91
Ending Page	108
Page Count	18
File Format	PDF
ISSN	00017051
Journal	Acta Theriologica
Volume Number	50
Issue Number	1
e-ISSN	21903743
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	cervids diet skull shape phylogeny South America Zoology Animal Physiology Behavioural Sciences Animal Ecology Evolutionary Biology Animal Anatomy Morphology Histology
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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