Dragonflies (Odonata) from the Northern Territory

Dragonflies (Odonata) from the Northern Territory
Title Dragonflies (Odonata) from the Northern Territory PDF eBook
Author J. A. L. Watson
Publisher
Pages 74
Release 1980
Genre Dragonflies
ISBN

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The Complete Field Guide to Dragonflies of Australia

The Complete Field Guide to Dragonflies of Australia
Title The Complete Field Guide to Dragonflies of Australia PDF eBook
Author Albert Orr
Publisher CSIRO PUBLISHING
Pages 626
Release 2021-03-01
Genre Science
ISBN 1486313760

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Dragonflies and damselflies are conspicuous insects: many are large and brightly coloured. They are also valuable indicators of environmental wellbeing. A detailed knowledge of the dragonfly fauna is therefore an important basis for decisions about environmental protection and management. This comprehensive guide to the Australian dragonfly fauna covers eight families of dragonflies and 10 families of damselflies, comprising the 113 genera and 333 species found in Australia. It has been updated with newly identified species and revised family names to reflect new world consensus systematics. Stunning full-colour images and distribution maps are accompanied by identification keys for adults as well as larvae, which are often used as bait for freshwater fish. This second edition of The Complete Field Guide to Dragonflies of Australia also includes illustrations by Albert Orr, one of the most renowned dragonfly illustrators. The extraordinary diversity of dragonflies will interest entomologists and amateur naturalists alike.

Identification Guide to the Australian Odonata

Identification Guide to the Australian Odonata
Title Identification Guide to the Australian Odonata PDF eBook
Author
Publisher
Pages 283
Release 2009
Genre Dragonflies
ISBN 9781742324753

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"Identification Guide to the Australian Odonata (dragonflies) includes 325 described species in 110 recognised genera. This publication provides keys to the identification of the adults of all Australian species and to the larvae as far as known and diagnosable."--P. iv.

The Complete Field Guide to Dragonflies of Australia

The Complete Field Guide to Dragonflies of Australia
Title The Complete Field Guide to Dragonflies of Australia PDF eBook
Author Albert Orr
Publisher CSIRO PUBLISHING
Pages 421
Release 2021-03
Genre Nature
ISBN 1486313752

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Dragonflies and damselflies are conspicuous insects: many are large and brightly coloured. They are also valuable indicators of environmental wellbeing. A detailed knowledge of the dragonfly fauna is therefore an important basis for decisions about environmental protection and management. This comprehensive guide to the Australian dragonfly fauna covers eight families of dragonflies and 10 families of damselflies, comprising the 113 genera and 333 species found in Australia. It has been updated with newly identified species and revised family names to reflect new world consensus systematics. Stunning full-colour images and distribution maps are accompanied by identification keys for adults as well as larvae, which are often used as bait for freshwater fish. This second edition of The Complete Field Guide to Dragonflies of Australia also includes illustrations by Albert Orr, one of the most renowned dragonfly illustrators. The extraordinary diversity of dragonflies will interest entomologists and amateur naturalists alike.

Australian Dragonflies

Australian Dragonflies
Title Australian Dragonflies PDF eBook
Author J Watson
Publisher CSIRO PUBLISHING
Pages 336
Release 1991-01-01
Genre Science
ISBN 0643102396

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Dragonflies are conspicuous insects. Many are large; they fly strongly; most are brightly coloured. As a result, they have been collected extensively. Their larvae are less familiar. 'Mud-eyes', as some are called, are drab, and almost all live in fresh waters, out of sight. They are, perhaps, best known as bait for freshwater fish. The dragonflies constitute a very distinct order of insects, the Odonata. In Australia, two suborders are represented: damselflies (Zygoptera), generally very slender insects, the fore- and hindwings similar in shape and venation and commonly held closed above the body at rest (Figs 46-63), the larvae with external gills on the end of the abdomen (Figs 4A-C, E); and dragonflies proper (Anisoptera), stouter, stronger-flying insects, the fore- and hindwings more or less dissimilar in shape and venation and commonly held spread at rest (Figs 64-101), the larvae with internal, rectal gills (see Chapter 2). Living representatives of the third suborder (Anisozygoptera) are confined to Japan and the Himalayas. The term 'dragonfly' is commonly applied to the entire order.

Odonata Biology of Dragonflies

Odonata Biology of Dragonflies
Title Odonata Biology of Dragonflies PDF eBook
Author B.K. Tyagi
Publisher Scientific Publishers
Pages 408
Release 2007-10-01
Genre Technology & Engineering
ISBN 938791335X

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Dragonflies (Odonata), represented by over 6000 known species, are unique insects. In more than one feature they differ, at the very first glance, from all other insect superorders including their nearest allies, the mayflies (Ephemeropteroidea). The Zygoptera and Anisoptera, on the other hand, are the dominant groups. Being voracious predators in both immature (aquatic) and adult (aerial) stages they are important elements of all, except the drier (or high alpine) environments in temperate and tropical regions, occupying a position at the apex of the food chain of invertebrate life. Many dragonfly species are tested biological control agents for several disease-transmitting vector mosquitoes, especially Aedes species. They are also ideal organisms to be used as indicators of water pollution and contamination. Many species serve as intermediate hosts of fluke parasites of birds, and thus are important in the transmission of parasitic diseases, especially of domestic poultry and wild ducks. Because of their unique morphology and physiology, dragonflies are used extensively in the study of many biological phenomena. All these subjects are discussed in this unique book comprising twenty three articles written by expert odonatologists from different parts of the world. The book is written in a lucid and comprehensible language, and will likely be useful to both the professional and amateur alike.

Conservation of Dragonflies

Conservation of Dragonflies
Title Conservation of Dragonflies PDF eBook
Author Michael J. Samways
Publisher CABI
Pages 555
Release 2024-06-11
Genre Science
ISBN 178924837X

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Dragonflies are among the most familiar and popular of all insects, deeply embedded in human cultural history. They are iconic and tell us much about the environments in which we and they live. Their conservation is an important part of biodiversity conservation. One modern dragonfly species is listed as extinct, with many others currently threatened. It is now essential to increase conservation efforts towards saving these threatened species, with strategies now available for doing this. Recovery of dragonfly populations goes hand in hand with improvements to both freshwater conditions and bank vegetation quality. In contrast, some other dragonfly species have benefitted greatly from human transformation of the landscape, with artificial ponds in particular, increasing the population levels of many species. In turn, climate change is seeing many geographical range shifts. Conservation of Dragonflies: Sentinels for Freshwater Conservation is for naturalists, citizen scientists, entomologists and conservation scientists, as well as practitioners and policy makers around the world.