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Presentation on theme: ""— Presentation transcript:

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23 Landmark events in insect-related biology

24 Globe skimmer (Pantala flavascens) migration

25 Branches of Entomology
Forest entomology Medical entomology Agricultural entomology Forensic entomology

26 Forest entomology Diversity studies Pest Management

27 Diversity studies Check lists Systematics Classical taxonomy
Molecular taxonomy Diversity indices Functional diversity Indicator species

28 Pest Management Impact assessments Population dynamics Management
Quarantine Chemical Cultural Autocidal Biological Parasites Predators Pathogens Fungi Bacteria Virus

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30 Medical Entomology Deals with insects and arthropods that impact human health Include: Scientific research on the behavior, ecology and epidemiology of arthropod disease vectors Tremendous outreach to the public Local and state official in the interest of public safety

31 Insects of Medical importance
Provide useful medical services or drugs Are useful model systems in genetic studies Directly cause damage to human tissue Act as vectors for disease- causing organisms

32 Agricultural entomology
Agriculture: Cultivation of plants/animals for human use Role of insects in Agriculture Harmful insects Spread diseases and kill the crop Eat plant parts, reduce yield Beneficial insects Eat or parasitize harmful insects Produce markatable products(Honey,Silk..) Mealy bug Silk worm Honey bee

33 Urban Stored product Medicolegal
Pest infestation in buildings, gardens; misuse of pesticides Contamination of commercial products Death Investigations

34 Role of insects in Forensic Investigations
To find PMI (When did death occur?) Movement of corpse (Where did death occur?) Manner and cause of death (How did death occur?) Involvement of drugs or toxins in the crime Association of suspects with the death scene Investigation method Collection of species Analyse age, number and species of insect Develop life cycle model

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36 Typical Faunal Succession Pattern
Succession wave Principle insect fauna State of corpse Age of corpse 1 Blow flies Fresh First 3 months 2 Blow flies & Flesh flies Odour 3 Dermestid beetles Fats are rancid 3-6 months 4 Various flies 5 Various flies & beetles Ammonia fermentation 4-8 months 6 Mites 6-12 months 7 Completely dry 1-3 years 8 Beetles 3+years Flesh flies Beetles Mites Blow flies

37 Why research?


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