Odonata are the bioindicators of freshwater ecosystem health and is recognised as an excellent ‘flagship’ group among insects. Baseline knowledge on diversity distribution odonates over spatiotemporal scale key to biodiversity conservation. Rani Reserve Forest Assam a mosaic all habitat types suitable for odonates. The present work aims at studying Odonates in Forest. study was carried out from...

A recent collection of 69 specimens together with survey counts and incidental observations during June-July 2002 provide new information on the odonate fauna of Kosrae, Micronesia. The fauna comprises one zygopteran (Isehnura aurora) and six anisopterans. It appears to have remained stable with no known extinctions or colonizations over the past half century. The fauna is nearly a subset of th...

Constituents of coal combustion waste (CCW) expose aquatic organisms to complex mixtures of potentially toxic metals and metalloids. Multi-element trace element analyses were used to distinguish patterns of accumulation among 8 genera of dragonfly nymphs collected from two sites on a CCW contaminated coastal plain stream. Dragonfly nymphs are exceptional for comparing trace element accumulation...

species of chameleon, Furcifer labordi, in Madagascar that spends most of its life as an egg. in Madagascar and the American Museum of Natural History in New York, have found a chameleon with a remarkable lifestyle and report the results in the latest issue of the Proceedings of the National Academy of Sciences (published online). Although there are almost limitless theoretical combinations of ...

Predatory animals have evolved to optimally detect their prey using exquisite sensory systems such as vision, olfaction and hearing. It may not be so surprising that vertebrates, with large central nervous systems, excel at predatory behaviors. More striking is the fact that many tiny insects, with their miniscule brains and scaled down nerve cords, are also ferocious, highly successful predato...

s of the XIII Congress of the Russian Entomological Society, Krasnodar, 9–15 September 2007. Kuban’ State Agrarian University, Krasnodar, 306 [In Russian]. 317. Rasnitsyn AP (2007) The problem of species revisited. Paleontological Journal 41(11): 1151–1155. 318. Vasilenko DV, Rasnitsyn AP (2007) Fossil ovipositions of dragonflies: Review and interpretation. Paleontological Journal 41(11): 1156–...

Libellulidae are commonly called ‘skimmers’ or ‘perchers’ representing the largest dragonfly family in the world. They are cosmopolitan in distribution and consist of 142 genera and 871 species. This family displays remarkable diversity in behaviour and morphology and consequently focused on studies of comparative population ecology, sexual selection, phylogeography and the evolution of mating ...

Unique patterns present in the wings of dragonflies and damselflies can be used to determine their family, genus, and species. A method for classifying dragonflies and damselflies using a particular pattern known as the triangle was developed using scanned images of the wings. Digital image processing techniques, such as image segmentation and feature detection, are used to determine properties...

Classification of professional and non-professional female sex workers (FSWs) into different categories, never previously reported in the Central African Republic (CAR), may be useful to assess the dynamics of the human immunodeficiency virus (HIV) epidemic, design operational intervention programmes to combat HIV and other sexually transmitted infections (STIs) and to adapt these programmes to...

Flying insects can generally be divided into two groups: 'primitive' orders with forewings and hindwings that move independently (for example, Odonata, Orthoptera, Isoptera) and more 'advanced' orders with wings that are functionally one pair, with the foreand hindwings in contact so as to function as one wing (for example, Hymenoptera, Lepidoptera, Homoptera), or with only one pair of wings th...