| Proje Ekibi |
Dr. Öğr. Üyesi Aslı DOĞAN SARIKAYA
Kırşehir Ahi Evran Üniversitesi, Türkiye Projedeki Rolü: Yürütücü |
| Proje Türü | Yükseköğretim Kurumları Tarafından Destekli Bilimsel Araştırma Projesi |
| Proje No | FEF.E2.17.047 |
| Proje Konusu | Cicindelidae is one of the most studied families of Coleoptera in terms of morphology and taxonomy. Nevertheless, its phylogeny is still controversial since the inclusion of them into the family Carabidae as a subfamily Cicindelinae. Alternative taxonomic methods are therefore highly desirable. The present work is pretending to fill this gap by using geometric morphometrics. Geometric morphometric analysis has particular advantages in species distinguishing work of beetles. Meanwhile, it provides information about phylogenetic and evolutionary process. Although this data is an excellent source of taxonomic studies, head shape and size variation have never been studied in tiger beetle species in spite of their potential importance. Since the head of both adult and larval tiger beetles includes distinctive characters. It has thus far provided no conclusive resolution of the relationships among the tiger beetle taxa. In this study, geometric morphometrics approach was firstly employed to evaluate the head shape and size variation of four cicindelid beetles. Analysis was conducted on the landmarks of the head of these tiger beetles, viz. Calomera fischeri fischeri (Adams, 1817), Calomera littoralis mandli (Mandl, 1967), Calomera caucasica (Adams, 1817), Cephalota circumdata cappadocica Franzen, 1996. After defining and capturing homologous landmarks on head, generalized procrustes analysis (GPA) was performed to superimpose landmark configurations which is important procedure because it removes variation due to differences in translation, orientation, and size. Multivariate regression of procrustes coordinates against centroid size was conducted to test the presence of allometry. Principal component analysis (PCA), canonical variate analysis (CVA) was utilized to describe variations in shapes among the studied beetles. Both canonical variate and principle component analysis were resulted in clear separation of inter-and intraspesific head shape. The taxonomic significance and phylogenetic implication of the results were interpreted and discussed. The data may be used as the basis for future studies with a more extensive taxon sampling and a focus on interrelationships of more Cicindelid genera. Key Words: Geometric morphometrics, Landmark, Cicindelidae, Head, Taxonomy |
| Proje Durumu | Tamamlandı |
| Başlangıç Tarihi | 10-08-2017 |
| Bitiş Tarihi | 17-11-2017 |
