Relative Warp Analysis on Shell Shapes of Faunus ater in Guihing River Hagonoy, Davao del Sur
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2016, Vol 8, Issue 3
Abstract
This study aims to characterize the relative warp analysis on shell shapes of the Faunus ater. A total of 60 individuals were analyzed based on their shell shape and was deliberated using a landmark-based methodology. The following are the total landmarks stated and used: ventral/aperture=27, dorsal=17 and top of the whorl=147. Procrustes ANOVA showed the significant level of symmetry of F. ater on its ventral/aperture=0.0392123; dorsal=0.1069 and top of the whorl=1.20366 portion. To further sustain the analysis, the upper five percent (5%) value of PCA was performed to visualized shape variation landmarked subject together with the histogram, and also used to investigate patterns of variation in the positions of landmarks: ventral/aperture=100.00%; dorsal=16.67% and top of the whorl=96.702%. The designated relative warps by its overall shape variation and percentage variance of F. ater confirms (a)16.66671667%; (b)16.6666%; (c)20.0001% for (a)ventral/aperture, (b)dorsal and (c)top of the whorl courtesy of relative warp box plot and histograms. The results of this study suggest that Relative Warp Analysis (RWA), Principal Component Analysis (PCA) of F. ater species mostly differ in the latter part and their body depth. The study of morphological differences in sizes and pattern using the ventral/aperture, dorsal, and top of the whorl characteristics of the shell clearly indicates its shell shape variation. In this manner, F. ater was quantitatively defined.
Authors and Affiliations
Darlene Deanne C. Mallari, Bianca T. Rabang, Renante V. Mesias, Von Jezzrel A. Jumao-as, Mark Anthony J. Torres, Elani A. Requieron
Keywords
Related Articles
- EP ID EP38761
- DOI -
- Views 142
- Downloads 0
Origin of water salinity in Annaba aquifer system, North-Eastern Algeria
The Annaba area hosts in its underground a water potential of great importance. In fact, it is one of the Algerian plains where groundwater is subject to over-pumping. Moreover, the expansion of farmlands and the develop...
GGEBiplot analysis of genotype × environment interaction in Agropyron intermedium
In order to identify genotypes of Agropyron intermedium with high forage yield and stability an experiment was carried out in the Research station of Kermanshah Iran.The 11 accessions were sown in a randomized complete...
Intra species association of some yield parameters in half-sib families of Allium cepa L.
Allium cepa L. is considered as one of the most widely consumed bulb vegetable in topical and sub-tropical regions of the world, because of its flavour, in addition to other dietic and medicinal values. Poor onion genot...
Investigation morphological and physiological response of Thymus vulgaris L. to drought stress
This study was performed to evaluate the effect of drought stress on quality and quantity yield of Thymus vulgaris under field and laboratory condition in Karaj, Iran. The study was conducted as randomized complete blo...
Characterization of agro-morphological variation in exotic fenugreek (Trigonella foenum-graecum L.) germplasm
This study investigates the relationship among morphological parameters and with seed yield for 167 fenugreek accessions including two checks (Methi and Methray) under field at (NARC) Islamabad Pakistan. Augmented field...