Indigenous people are generally very knowledgeable about the wild medicinal plants around them, many of which have local names and are important to the people medically or are featured in folklore. This traditional knowledge is the best starting point for effective in situ conservation, which requires accurate and up to date information on the status of medicinal plant populations, the extent and nature of plant use by local communities and the capacity of the resource base to support different economic activities. This knowledge can be used in the evaluation and in creation of awareness of the importance of medicinal plant as it is generally easier for the public to relate to the cultural significance than the results of scientific trials. An understanding of the many aspects of human influences on biodiversity and the underlying driving forces of the influences is of crucial importance for setting priorities and directing efforts towards conservation and sustainable use.
The egg of Samia ricini (Donovan), is oval or laterally flattened ellipsoid, freshly laid eggs are candid white while the chorion is colorless and semi-transparent. The surface of the chorion is covered with network patterns of polygons and their shapes are common in the whole surface region. The boundaries between polygons made ridges had distinct acropyles at three-cell junctions. The numbers of aeropyles are variable according to their structures both in the lateral flat and marginal regions. During the course of egg development, no significant structural changes were observed in either the polygonal structures or the overall morphology of the egg. However, the size of the aeropyles kept on changing as the egg matures. The aeropyle increases initially upto day-9 of egg development and then decreases as it approach hatching. Lines of weaknesses were not observed at time of hatching or close to it. Hatching process of the newly emerge larvae are through gnawing. The larva eats their way out through the chorion membrane mostly from the anterior region. Egg buster or spine which aid in hatching are not present in the newly emerge larvae.This article was published online on 25 September 2009. An error was subsequently identified. This notice is included in the online and print versions to indicate that both have been corrected 6 January 2010.
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