The history of interest and practice in insect conservation is summarised and traced through contributions from many of the leaders in the discipline, to provide the first broad global account of how insects have become incorporated into considerations of conservation. The essays collectively cover the genesis and development of insect conservation, emphasising its strong foundation within the northern temperate regions and the contrasts with much of the rest of the world. Major present-day scenarios are discussed, together with possible developments and priorities in insect conservation for the future.

Includes chapters on assessing changes among assemblages and in individual species, the variety of general threats (notably habitat changes and impacts of alien species) and more particularly urban threats. The first global overview and synthesis of the impacts of urbanisation on insects and their relatives and the needs and theoretical and practical background to conserving them in urban environments. Insect dependence on open spaces in built-up areas suggests a wide range of management options for conservation, from individual site (including novel habitats such as green roofs) to landscape-level connectivity. These measures, all discussed with specific examples, involve all sectors of humanity, from government agencies to individual householders and ‘citizen scientist’ groups. Each chapter includes pertinent and recent.

Problems of insect enumeration and assessment of needs are addressed in the contexts of rapid and substantial losses and changes to all key Australian terrestrial and freshwater environments and promoting awarenesss of the importance of insects. Further definition of the insect fauna and its peculiarities can aid threat alleviation and practical management to protect and conserve this unique and largely endemic biodiversity. Written for the many environmental managers and naturalists who are not primarily entomologists, the ten chapters expand from considerations of insect decline and diversity to the unique features of the Australian fauna and its characterisation. Cases and examples from throughout the world illustrate the major needs, approaches and priorities to sustaining a poorly known, diverse and ecologically varied insect heritage of global significance.

The third in a trilogy of global overviews of conservation of diverse and ecologically important insect groups. The first two were Beetles in Conservation (2010) and Hymenoptera and Conservation (2012). Each has different priorities and emphases that collectively summarise much of the progress and purpose of invertebrate conservation. Much of the foundation of insect conservation has been built on concerns for Lepidoptera, particularly butterflies as the most popular and best studied of all insect groups. The long-accepted worth of butterflies for conservation has led to elucidation of much of the current rationale of insect species conservation, and to definition and management of their critical resources, with attention to the intensively documented British fauna ‘leading the world’ in this endeavour. In Lepidoptera and Conservation, various themes are treated through relevant examples and case histories, and sufficient background given to enable non-specialist access. Intended for not only entomologists but conservation managers and naturalists due to its readable approach to the subject.

This handbook presents a comprehensive overview of insect conservation and provides practical solutions to counteract insect declines, at a time where insects are facing serious threats across the world from habitat destruction to invasive species and climate change. The Routledge Handbook of Insect Conservation consist of six sections, covering all aspects of insect conservation, containing contributions from academics, researchers and practitioners from across the globe. Section I addresses the fundamentals of insect conservation and outlines the reason why insects are important and discusses the greatest drivers of insect decline. The chapters in Section II examine the approaches that can be used for insect conservation globally, such as protected areas and agroecology, while highlighting the importance of insects in the composition and function of ecosystems. The chapters in Section III focus on insect populations in the major biomes around the world, from temperate and tropical forests to savannas and grasslands, with the chapters in Section IV focusing on natural and manmade ecosystems of the world, including mountain, soil, urban, island and agricultural habitats. They discuss the unique pressures and challenges for each biome and ecosystem and offer practical solutions for conserving their insect populations. Section V focuses on the assessment and monitoring of insects for conservation, discussing how we can implement practical monitoring protocols and what options are available. A wide variety of methods and tools are examined, including citizen science, bioindication, the role of taxonomy, drones and eDNA. The book concludes by examining policy and education strategies for insect conservation in Section VI. The chapters discuss key issues around social and policy strategies and conservation legislation for ensuring the long-term protection of insects. This book is essential reading for students and scholars of biodiversity conservation and entomology as well as professionals and policymakers involved in conservation looking for real-world solutions to the threats facing insects across the globe.

Losses of forests and their insect inhabitants are a major global conservation concern, spanning tropical and temperate forest regions throughout the world. This broad overview of Australian forest insect conservation draws on studies from many places to demonstrate the diversity and vulnerability of forest insects and how their conservation may be pursued through combinations of increased understanding, forest protection and silvicultural management in both natural and plantation forests. The relatively recent history of severe human disturbance to Australian forests ensures that reasonably natural forest patches remain and serve as ‘models’ for many forest categories. They are also refuges for many forest biota extirpated from the wider landscapes as forests are lost, and merit strenuous protection from further changes, and wider efforts to promote connectivity between otherwise isolated remnant patches. In parallel, the recent attention to improving forest insect conservation in harmony with insect pest management continues to benefit from perspectives generated from better-documented faunas elsewhere. Lessons from the northern hemisphere, in particular, have led to revelations of the ecological importance and vulnerability of many insect taxa in forests, together with clear evidence that ‘conservation can work’ in concert with wider forest uses. A brief outline of the variety of Australian tropical and temperate forests and woodlands, and of the multitude of endemic and, often, highly localised insects that depend on them highlights needs for conservation (both of single focal species and wider forest-dependent radiations and assemblages). The ways in which insects contribute to sustained ecological integrity of these complex ecosystems provide numerous opportunities for practical conservation.

Documenting and understanding intricate ecological interactions involving insects is a central need in conservation, and the specialised and specific nature of many such associations is displayed in this book. Their importance is exemplified in a broad global overview of a major category of interactions, mutualisms, in which the interdependence of species is essential for their mutual wellbeing. The subtleties that sustain many mutualistic relationships are still poorly understood by ecologists and conservation managers alike. Examples from many parts of the world and ecological regimes demonstrate the variety of mutualisms between insect taxa, and between insects and plants, in particular, and their significance in planning and undertaking insect conservation – of both individual species and the wider contexts on which they depend. Several taxonomic groups, notably ants, lycaenid butterflies and sucking bugs, help to demonstrate the evolution and flexibility of mutualistic interactions, whilst fundamental processes such as pollination emphasise the central roles of, often, highly specific partnerships. This compilation brings together a wide range of relevant cases and contexts, with implications for practical insect conservation and increasing awareness of the roles of co-adaptations of behaviour and ecology as adjuncts to designing optimal conservation plans. The three major themes deal with the meanings and mechanisms of mutualisms, the classic mutualisms that involve insect partners, and the environmental and conservation lessons that flow from these and have potential to facilitate and improve insect conservation practice. The broader ecological perspective advances the transition from primary focus on single species toward consequently enhancing wider ecological contexts in which insect diversity can thrive.