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This book recounts the habits of many interesting and unusual exceptions to the rule that insects are typically terrestrial forms of life. It examines the different ways that groups of species have developed modes of existence in or on the surface of water, and gives reasons why the gross morphology of insects is not favorable for life in or near bodies of water, such as wings that fail to function after coming into contact with water, rendering them useless.
Field Crop Arthropod Pests of Economic Importance presents detailed descriptions of the biology and ecology of important arthropod pest of selected global field crops. Standard management options for insect pest control on crops include biological, non-chemical, and chemical approaches. However, because agricultural crops face a wide range of insect pests throughout the year, it can prove difficult to find a simple solution to insect pest control in many, if not most, cropping systems. A whole-farm or integrated pest management approach combines cultural, natural, and chemical controls to maintain insect pest populations below levels that cause economic damage to the crop. This practice requires accurate species identification and thorough knowledge of the biology and ecology of the target organism. Integration and effective use of various control components is often enhanced when the target organism is correctly identified, and its biology and ecology are known. This book provides a key resource toward that identification and understanding. Students and professionals in agronomy, insect detection and survey, and economic entomology will find the book a valuable learning aid and resource tool. - Includes insect synonyms, common names, and geographic distribution - Provides information on natural enemies - Is thoroughly referenced for future research
This book discusses the biological control of weeds using arthropods, providing ecological management models for use across the tropical world.
Thorp and Covich's Freshwater Invertebrates, Fourth Edition: Keys to Neotropical Hexapoda, Volume Three, provides a guide for identifying and evaluating a key subphylum, hexapoda, for Central America, South America and the Antarctic. This book is essential for anyone working in water quality management, conservation, ecology or related fields in this region, and is developed to be the most modern and consistent set of taxonomic keys available. It is part of a series that is designed to provide a highly comprehensive, current set of keys for a given bioregion, with all keys written in a consistent style. This series can be used for a full spectrum of interested readers, from students, to university professors and government agencies. - Includes zoogeographic coverage of the entire Neotropics, from central México and the Caribbean Islands, to the tip of South America - Identifies aquatic springtails (Collembola) and insects to the genus level for many groups, and family or subfamily level for less well known taxa - Presents multiple keys, from higher to lower taxonomic levels that are appropriate for each users' level of scientific knowledge and needs - Provides a general introduction and sections on limitations, terminology and morphology, material preparation and preservation, and references
The factors governing life on earth are changing constantly and the same is true for life too. The unique property of the aquatic insects is their ability to changes in the themselves, accepting the challenge caused by changes in the surroundings and this has enabled to exploit the environment successfully, leading to their survival multiplication and continuation on earth since first appearance. This book is the compilation of esteemed articles of internationally acknowledged experts in the field of aquatic biology with the intention of providing a sufficient depth of the subject to satisfy the needs at a level which will be comprehensive and interesting. The present book will be useful to the students, research scholars, scientists in the field of Environmental management and ecoplanners, politicians and other people with similar interest. Contents Chapter 1: Quantitative Assessment of Predatory Insects and their Integration with Varied Factors in Some Fish Culture Ponds by Manish Chandra Varma, Shiv Kumar, Raghbendra Pratap and Arvind Kumar; Chapter 2: Genotoxicity of Cadmium Assessed by the Micronucleus Test on Channa punctatus (Pisces : Family-Channidae) by N K Tripathi and Anurag Dubey; Chapter 3: Diel Vertical Migration of Zooplankton in Andaman Sea by I K Pai, Sameer Terdalkar, M L Pereira and F M Morgado; Chapter 4: Biological Control of Locusts and Grasshoppers Using Red-Mite, Eutrombidium trigonum Herm by S K A Rizvi, N P Singh and Nazima Maqbool; Chapter 5: Effect of Different Food Conditions on Survival, Longevity and Life History of Oithona brevicornis and Calanus finmarchicus by R Ramanibai and G Priya: Chapter 6: Assesment of Plankton Diversity using Shannon-Weaver Index (H ): A Case Study in Coleroon and Cauvery Esturies by P Elayaraja and R Ramanibai; Chapter 7: Ecology of Aquatic Insects in Harike Wetland by K S Bath; Chapter 8: Ecology of Kanjli Wetland with Reference to the Invertbrate Fauna by K S Bath; Chapter 9: Distribution of Insects in Relation to Pollution in Satluj River, Panjub by H Kaur, J Syal, S Jasuja and S S Dhillon; Chapter 10: Insect Fauna of Ropar Headworkers Reservoir, Punjab by H Kaur, K Sajeev, S Jasuja and S S Dhillon; Chapter 11: Insect and Aquatic Envirionment by S Subhashini, K Logan Kumar and S Logaswamy; Chapter 12: Statistical Approach to Monthly Variations of Physico-chemical Factors at Lower Lake of Bhopal in Relation to Insect Fauna by Madhulika Singh and K Borana; Chapter 13: Seasonal Variations in Insects Population of Lower Lake of Bhopal in Relation to Macrophytes by Madulika Singh and K Borana; Chapter 14: The Effect of Pollutants on the Genotype of Five Species of Family Coengrionidae (Zygoptera : Odonata) by G K Waliy; Chapter 15: Main Cytogenetic Characters in the Order Odonata by G K Walia; Chapter 16: Algal Contribution to Dissovloved Oxygen in Small Hilly Streams: A Case Study by M R Sharma and A B Gupta; Chapter 17: Aquatic Environment of Ram Ganga River at Moradabad, India: A Quantitative Assessment by D K Sinha, Shilpi Saxena; Chapter 18: Oviposition Deterrent Activities of Azadirachta indica Dalbergia sissoo and Tagetes erecta Leaf Extract Against Culex Quinquefasciatus Say by Navpreet Kaur Gill and Shivali Uttam; Chapter 19: Histopathological and Histochemical Effects of a Newly Synthesized (JHA) Cyclohexloxy Compound on the Midgut on Fourth Instar Larvae of Culex quinquefascuatus Say by Navpreet Kaur Gill; Chapter 20: Role of Some Abiotic Factors in Structuring the Macroinvertebrate Community with Spical Reference to Insects Along a Longitudinal Profile of River Sindh, Kashmir Valley by Haroon UI Rashid and Ashok K. Pandit; Chapter 21: Some Aspects of Habitat Ecology of Aquatic Entomofauna in two Freshwater Lakes of Kashmir Himalaya by Kawnsar-ul-Yaqoob and Ashok K Pandit.
Biological control of weeds has been practised for over 100 years and Australia has been a leader in this weed management technique. The classical example of control of prickly pears in Australia by the cactus moth Cactoblastis cactorum, which was imported from the Americas, helped to set the future for biocontrol of weeds in many countries. Since then there have been many projects using Classical Biological Control to manage numerous weed species, many of which have been successful. Importantly, there have been no serious negative non-target impacts – the technique, when practised as it is in Australia, is safe and environmentally friendly. Economic assessments have shown that biocontrol of weeds in Australia has provided exceedingly high benefit-to-cost ratios. This book reviews biological control of weeds in Australia to 2011, covering over 90 weed species and a multitude of biological control agents and potential agents. Each chapter has been written by practising biological control of weeds researchers and provides details of the weed, the history of its biological control, exploration for agents, potential agents studied and agents released and the outcomes of those releases. Many weeds were successfully controlled, some were not, many projects are still underway, some have just begun, however all are reported in detail in this book. Biological Control of Weeds in Australia will provide invaluable information for biological control researchers in Australia and elsewhere. Agents used in Australia could be of immense value to other countries that suffer from the same weeds as Australia. The studies reported here provide direction to future research and provide examples and knowledge for researchers and students.
This book considers some of the potential influences on individuals and populations (e.g. environmental stresses, parasites, cannibalism, dispersal limitations), the 'cunning tricks' used by aquatic insects to overcome challenges (e.g. polarization vision, life-history strategies, osmoregulation, cold hardiness) and the consequences of those challenges at different levels of organization (e.g. distribution patterns, population structure, population genetics, evolution).
From the damselfly to the whirligig beetle, our nation's streams are teeming with critters. This convenient, inexpensive guide allows you to identify any that you find, whether you're working on your fly tying, researching the local insect life, or just mucking around in the river. Also includes information on the river conservation and management work performed by the Izaak Walton League, making this an especially valuable resource for stream monitors, biologists, and other specialists. This fully illustrated guide to identifying water-dwelling macroinvertebrates is a handy resource for anglers, students, biologists, or anyone else spending time near rivers and streams.