DIVERSITY OF ENVIRONMENTAL HEALTH MARKERS ODONATA AND LEPIDOPTERA IN GWARIGHAT REGION OF RIVER NARMADA, JABALPUR (M.P.) INDIA

River Narmada is the fifth largest westwards flowing river of India. Biodiversity protection and conservation is a national and international agenda and responsible for sustainable development of a region or a country and secondly Lepidoptera and Odonata are potential bio control agents of many invertebrates. Lepidoptera and Odonata assemblage along with river Narmada bank of Gwarighat region in Jabalpur has been investigated. A total of 41species have been distributed in two orders Odonata with 22 species and Lepidoptera with 19 species were sampled. Libellulidae with 9 species under order Odonata and Nymphalidae with 9 species under Lepidoptera are the most dominating families while others have fewer representatives. Mostly organisms were aggregated due to habitat specific nature and random distribution indicates availability of resource utilization to survive but, in the urban forest area, high anthropogenic disturbances were observed which creates high biotic pressure on forest. A detailed list of Odonata and Lepidoptera recorded from urban forest area is presented.


INTRODUCTION
Biodiversity conservation and management are worldwide concern (Ramesh et al., 2010), where determining the diversity levels of indicator groups of ecosystem should permit the prediction of Http://www.granthaalayah.com ©International Journal of Research -GRANTHAALAYAH [124][125][126][127][128][129][130][131][132][133][134][135][136] other taxa to be present i.e., the importance and appropriateness of using invertebrate groups as indicator (Oliver and Beattie, 1993;Pearson, 1994). Biodiversity loss is one of the world's most pressing crisis and there is global concerned about the biological resource on which so much human life depends. The biological change that environmental degradation brings about and enumerated pollution and introduced species as the main cause for the decreased in biodiversity around the world. Relating patterns of biodiversity to spatial phenomena is becoming increasingly important in community ecology and related disciplines such as conservation biology (Spencer et al., 2002). Alternatively, local environmental conditions may prevail because certain species depend on a given set of environmental conditions for survival. Both of these processes are likely to act in concert to determine patterns of community similarity within and among habitats. Partitioning ecological variation exhibited by communities into that explained by purely spatial and that explained by purely environmental phenomena is crucial to understanding the mechanisms behind patterns of biodiversity (Borcard et al., 1992;Condit et al., 2002 andDuivenvoorden et al., 2002).
To focus on the conservation of biodiversity has recently received attention. Various studies and protocols have been proposed to test the appropriate patterns of biodiversity (Wilson, 1988;Noss, 1990; and (Wright et al., 1991) also classified a hierarchical composition of different level of organization as well as groups of taxonomically related species to test the patterns of biodiversity conservation. The use of indicator taxa in conservation efforts from pollution control to biodiversity has been the focus of attention (Landers et al., 1988).
Mass extinctions of the Earth's flora and fauna have occurred before also but those were driven by natural factors. However, the projected extinctions of flora and fauna in the future will be human driven i.e. due to adverse impact of human activities. The growth of human populations around the world, along with attendant pollution and loss of habitat, has set the stage for mass extinctions and large scale alterations in the flora and fauna.
River Narmada is westward flowing lotic water-body of central plateau region which covers 98,797 sq. km of total water-shed area. It is known as the life line of Madhya Pradesh as well as Gujarat In the basin of river Narmada industrial area are less developed as compared to other river basins. Perennial river system with different habitat types provides good opportunities to Odonata as well as Lepidoptera, the wonderful insect groups to flourish and survive. Narmada basin created an excellent habit and source of alteration for many faunal species like insects, reptiles, birds and mammals (Tiple et al., 2010). Both are good indicators of environmental changes as they are sensitive to habitat degradation and climate changes (Kunte, 2000). Butterflies play an important role in ecosystem where they interact with plants as it is one on the major source of pollination and also a herbivorous insect (Tiple et al., 2006).
Different ecological requirements are linked to different dispersal capacities and their high diversity of aquatic habitats in tropical forests (Orr, 2006), especially in mountain areas (Oppel, 2005) as mountains not only provide a greater contemporary diversity of habitats, but also a greater potential for survival in refugia. Species with narrow niches often disperse poorly, while pioneers of temporal habitats are excellent colonisers, making Odonata a particularly good group for evaluating habitat connectivity. Odonata and Lepidoptera are easy-to-study group and are useful for monitor the overall biodiversity of aquatic as well as near-by terrestrial habitats and had been identified as good indicators as well as pollinator of environmental health (Corbet, 1999;Kalkman et al., 2008).
Lepidoptera and Odonata are generally regarded as best taxonomically studied group of insects. With the exception of Antarctica, they are widespread and abundant in all continents, although centres of species richness typically occur in tropical forests (Kalkman et al., 2008). Both are highly specialized insect orders show total metamorphosis and pass through various stages such as egg, larva, pupa and adult stage. Among the invertebrates, Odonata include insects known as dragonflies or damselflies and are always attract the human beings for their, powerful flight and extraordinary sense of vision Lepidoptera for their variety of colour.
Worldwide there are more than 28,000 species of butterflies, with about 80 percent found in tropical regions (Robbins and Oplar, 1997) while Silsby (2001)  The present study was started to examine the diversity of butterflies, dragonflies and damselflies from Gwarighat region of river Narmada in Jabalpur.

2.1.STUDY AREA
The findings presented here are based on random surveys carried out February 2015 to September 2015 in the Gwarighat region of river Narmada. The Gwarighat area of river Narmada basin is surrounded with a very large variety of trees, mini forest, vast grassland and small hill; these are the elements for architecting a preferred habitat or such species.

2.2.DATA COLLECTION
The sites were visited early in the morning from 5 to 9 am, and evening from 5 to 7 pm hours to note maximum possible species of dragonflies and butterflies to record their activities. The study has been carried out and in such a way there should be least one visit in a week. Observations were made through walking in a wide area of the site with the aid of binocular and digital cameras.

2.3.DATA TREATMENT, ANALYSIS AND IDENTIFICATION
Organisms were primarily identified directly in the field by observation and the difficult cases followed capture or photography of the organism. In critical conditions, specimens were collected only with handheld aerial sweep nets. Each specimen was placed in a plastic bottle and carried to the laboratory for further identification with the help of a field guide (Wynter-Blyth 1957; Kunte 2000; Haribal, 1997).

FOR ODONATA
In the present study, all scientific names of Odonata were followed Varshney (1983) guidelines. The observed butterflies were categorized in five categories on the basis of their abundance in Gwarighat region of river Narmada i.e., Very common, Common, Very rare, Rare, Not Rare (Tiple et al., 2006).

FOR LEPIDOPTERA
The collected adult specimens of Lepidoptera were identified with the help of identification keys provided by Fraser, (1933Fraser, ( , 1934Fraser, ( and 1936

RESULT
This study of Lepidoptera and Odonata were too primarily to identify the different specimen at different habitats and different representative fields. The specimens were categorized into four groups based on their occurrence during the study period on the basis of frequency of sightings. During the intensive survey of Insects in Jabalpur district, 41 species were revealed during the study among these a total of 10 families belonging to 2 orders Odonata and Lepidoptera were recorded from selected site. Out of 19 species under Lepidoptera belonging to 14genera of 5 families' viz., Nymphalidae, Papillionidae, Piridae, Lycaenidae and Hesperiidae. In terms of number of species result revealed that, out of total 5 families the Nymphalidae with 9 species was the most dominant family, after which Pieridae with 4 species, followed by the Papilionidae with 3 species, Hesperiidae with 2 species and Lycaenidae with 1 species (Figure 2.).

RELATIVE ABUNDANCE
The relative abundance showed that among the 22 species of Odonates recorded, 8 species were found to be very common, 3 species were common, 10 species were rare and 1 species were very rare while from 19 species of order Lepidoptera 7 very common species, 9 common species and 3 rare species were found to the study area. These 10 species of Odonata and 3 species of butterflies from the study area were designated rare, suggesting the need for strict conservation measure.   Figure 3: Abundance Status of Lepidoptera in Gwarighat region of river Narmada

DISCUSSION
Urbanization also is associated with habitat degradation including decreased plant species diversity, reduced water quality, and increased air and soil pollutions. In terrestrial ecosystem, insect fauna represent more than 70% and also play an important role in food chain for the natural balance. Insects are extremely important components of the bioindicators of the world.  They further demonstrated that most of the species were noticeably absent in the disturbed and human impacted sites (gardens, plantation and grassland) and there was no occurrence of unique species in moderately disturbed areas comparable to those of less disturbed wild areas. The present study site is in constant disturbance due to the cutting of grasses, shrubs and trees for landscaping which may be the reason for the overall reduction of the number of species (Tiple, 2012). The preference of butterflies for particular habitats is associated with the availability of larval host plants and adult nectar plants. The rich diversity of Odonata and Lepidoptera, especially the Nymphalids and Libellulids in Gwarighat region of river Narmada indicates a varied assemblage of floral species as well as terrestrial area. The flora in studied site is of mixed type with herbs and shrubs dominating the vegetation in the tropical climate.
Butterflies also serve as major pollinators of both wild and cultivated plants (Tiple, 2006) and dragonflies as an environmental indicator. Owing to habitat destruction for developmental activities in urban environment and unscientific management of natural resources, much of our native butterflies are fast disappearing and at present, their survival is under threat. For our next generation we can save wonderful attractive creature on our surrounding garden and forest.

CONCLUSION
The summary reports the status and diversity of Odonata and Lepidoptera. With the pressing needs of the growing human population in India, natural greeneries are being clear-felled giving way to urbanization, pollution and overgrazing. Loss of prime habitat is the major threat to all wildlife including dragonflies, damselflies and butterflies. Although we cannot completely nullify the ill effects of urbanization and development, we can at least try to reduce them by planting endemic trees and plants supporting the local wildlife. The group features prominently in nature management and they are often used as indicators for environmental health and conservation management. Large scale and multi-taxa conservation plans for river systems are needed in order to establish a balance between agriculture, development and nature conservation and Development of a sustainable network of local experts and volunteers is needed to facilitate the conservation and monitoring of butterfly, dragonfly and damselfly species and habitats.

RECOMMENDATION CONCERN FOR CONSERVATION
a) Research-notably taxonomy and studies of the distributions and biological requirements of species. b) Pollution Control c) Legislation-notably to provide protected areas, to control development and to control pollution. d) Education and raising public awareness