دورية أكاديمية
أعرض في EDS

Cranial variation in species and subspecies of kangaroo rats (Dipodomys, Dipodomyinae, Rodentia) according to geometric morphometrics.

التفاصيل البيبلوغرافية
العنوان: Cranial variation in species and subspecies of kangaroo rats (Dipodomys, Dipodomyinae, Rodentia) according to geometric morphometrics.
المؤلفون: Alhajeri BH; Department of Biological Sciences, Kuwait University, Safat, Kuwait.
المصدر: Integrative zoology [Integr Zool] 2024 Apr 11. Date of Electronic Publication: 2024 Apr 11.
Publication Model: Ahead of Print
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Wiley Publishing Asia Pty Ltd Country of Publication: Australia NLM ID: 101492420 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1749-4877 (Electronic) Linking ISSN: 17494869 NLM ISO Abbreviation: Integr Zool Subsets: MEDLINE
أسماء مطبوعة: Publication: 2012-: Richmond, Vic., Australia : Wiley Publishing Asia Pty Ltd
Original Publication: 2006-2012: [Oxford, England] : Blackwell Publishing
مستخلص: Traditional Dipodomys (sub)species identification uses geography, phenotype, and external/skull measurements. Such measurements are correlated with size and thus redundant. I assessed the value of scaled cranial shape, based on two-dimensional landmarks (analyzed using geometric morphometric methods) in distinguishing Dipodomys taxa, and in summarizing their variation. My dataset includes 601 adult specimens from 20 species (49 operational taxonomic units - OTUs) across 190 localities. Cranial shape was highly useful in classifying Dipodomys taxa without considering geography. The auditory bulla was the most variable region-taxa differed in its hypertrophy, accompanied by different degrees of nearby structure crowding. Cranial shape was weakly allometric, with no significant sexual dimorphism. Weak size dimorphism was detected. (Sub)specific taxonomy is not reflective of shape variation, as the number of subspecies per species is not associated with disparity. Shape had significant phylogenetic signal, but subspecies did not always cluster with conspecifics and species did not always cluster according to phylogenetic relationship/taxonomy. Shape variation was correlated with climate, and species differed in morphological disparity and degree of specialization, which may contribute to divergence in shape variation patterns from phylogeny. D. deserti was the most specialized species, diverging greatly from the genus mean; D. heermanni was the least specialized. This study provides new insights into morphological variation of North American keystone species, several of conservation interest, for example, D. heermanni berkeleyensis, D. h. dixoni, D. nitratoides brevinasus, and D. n. nitratoides.
(© 2024 International Society of Zoological Sciences, Institute of Zoology/Chinese Academy of Sciences and John Wiley & Sons Australia, Ltd.)
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فهرسة مساهمة: Keywords: Dipodomys; North America; kangaroo rat; morphometrics; skull; subspecies
تواريخ الأحداث: Date Created: 20240411 Latest Revision: 20240411
رمز التحديث: 20240411
DOI: 10.1111/1749-4877.12824
PMID: 38601992
قاعدة البيانات: MEDLINE
الوصف
تدمد:1749-4877
DOI:10.1111/1749-4877.12824