2018 Volume 5 Issue 1

Population Structures of Vivipara Angularis Muller from Lake Lanao, Mindanao, Philippines


Conaida Camama, Cesar G. Demayo
Abstract

Native species of freshwater gastropod Vivipara angularis have been widely distributed along Lake Lanao. The pattern of the morphological shell variation of this indigenous species was analyzed in the four populations sampled along three sites in Lake Lanao and in Balutmasla Island, one of its two islets located centrally in the lake. Variation in the shell outline was assessed using elliptic Fourier analysis of the captured two-dimentional outline of the shell. The results showed that the variations were detected along the spire-body whorl length and its aperture opening. The variations among the populations were due to the variations observed within the populations and these were argued primarily due to the phenotypic plasticity.


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Entomology and Applied Science Letters is an international peer reviewed publication which publishes scientific research & review articles related to insects that contain information of interest to a wider audience, e.g. papers bearing on the theoretical, genetic, agricultural, medical and biodiversity issues. Emphasis is also placed on the selection of comprehensive, revisionary or integrated systematics studies of broader biological or zoogeographical relevance. Papers on non-insect groups are no longer accepted. In addition to full-length research articles and reviews, the journal publishes interpretive articles in a Forum section, Short Communications, and Letters to the Editor. The journal publishes reports on all phases of medical entomology and medical acarology, including the systematics and biology of insects, acarines, and other arthropods of public health and veterinary significance.
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