For instance, attractants are pheromones which bind the members of a colony of social insects. You can change your ad preferences anytime. This template can be used as a starter file for presenting training materials in a group setting. All social insects release alarm pheromones when their colony is attacked. Overpopulation results from an increased birth rate, decreased death rate, the immigration to a new ecological niche with fewer predators, or the sudden decline in available resources. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Life table – Interspecific and intraspecific relationship. Insect relationships have always been very difficult to unravel because of the sheer diversity of insect life - one in every two multicellular organisms (animals and plants) on Earth is an insect. Characteristics of Parasitoids A. Parasitoids usually destroy their hosts during development. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 3. Interspecific interactions are herbivory, predation, competition, coevolution and symbiosis. Looks like you’ve clipped this slide to already. Some ecosystem services, such as the regulation and stabilisation of climate, water flow, and the In the case of insect parasitoids, species can compete for host resources both at the adult stage as well as at the larval stage. They gather nectar from a population of 560 flowering plants. A cohort life table tracks organisms through the stages of life, while a static life table shows the distribution of life stages among the population at a single point in time. If you continue browsing the site, you agree to the use of cookies on this website. PDF | On Mar 7, 2011, Cherukuri Sreenivasa Rao published Insect Ecology and Integrated Pest Management (Ento-231) - Notes | Find, read and cite all the research you need on ResearchGate Host plant resistance (HPR) to insects is an effective, economical, and environment friendly method of pest control. Many insects use repellant odors to protect themselves, and perhaps the best-known group of such insects is the stink bugs. II. Wim Vanderbauwhede. 47 Allomones in other insects include: o Sting gland in bees o Formic acid in ants Allomones also serve plants as defence mechanism against herbivores and reduce competition with other plants. If you're seeing this message, it means we're having trouble loading external resources on our website. If you continue browsing the site, you agree to the use of cookies on this website. There are two basic modes: competition (q.v. It can occur in any plant organ (Rice, 1974), but roots, seeds, and leaves are the most common sources.Source becomes important for exploitation of allelochemicals for weed control. FACTORs AFFECTINGInterspecific competition ininsects ajaySharma{dept.of entomology} 2. A. Parasitoid: A parasitic insect that lives in or on and eventually kills a larger host insect (or other arthropod). DIAPAUSE-AESTIVATION ,HIBERNATION See our Privacy Policy and User Agreement for details. Dragonfly, any of a group of roughly 3,000 species of aerial predatory insects most commonly found near freshwater throughout most of the world. Competition Competition is the struggle for use of shared limiting resources . Dept. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Some sucking insects like blood sucking bug (Rhodnius Add slides to each topic section as necessary, including slides with tables, graphs, and images. This study and other examples of interspecific competition between plant—feeding insects indicate that more field experiments are needed before any conclusions can be drawn about the significance of competition for insect herbivores. Make your text as brief as possible to maintain a larger font size. SESSION 2018-19 Summarize presentation content by restating the important points from the lessons. Production 6.2. Types of parasitoids and parasitism ppt 1. This technique is only suitable if there is a single mating. B. Plant-insect signaling interactions: signals that plants receive from herbivores and other plants •Wounding: feeding or mechanical damages •Herbivore-associated molecular patterns (HAMPs) –Chemicals: Fatty acid-amino acid conjugate (FAC), caeliferins, 2-hydroxyoctadecatrienoic acid, bruchins, See our User Agreement and Privacy Policy. Example : competition between humming birds & insects for nectar . Plant-Microbe Interactions 3. Clipping is a handy way to collect important slides you want to go back to later. Insects flourish up to 10 °C but below 6 °C mortality of certain insects like coleopterons species goes up to > 99 °C after 9 months at 45% R.H. storage conditions. Pages 1063-1072. Host: Those animals attacked by parasitoids. Members of other species can affect all char cteristics of a population. The CFs of these species range between 40 kHz and 200 kHz, but the distribution of call frequencies is not random: frequencies lying close together are avoided, suggesting that resource partitioning may occur with respect to prey size as a mechanism for reducing interspecific competition for insect food (Heller and Helversen, 1989). The chapter focuses on genetic relations among castes in lower termites. “Rationality is the quality or state of being rational – that is, being based on or agreeable to reason. For example, parasites use the host smell for searching and preys use predators’ smell to escape away. TOPIC:SEASONALITY IN INSECTS Which population has greater density, the insects or the plants? 1 biological control of weeds-ajay sharma, Customer Code: Creating a Company Customers Love, Be A Great Product Leader (Amplify, Oct 2019), Trillion Dollar Coach Book (Bill Campbell). The parasitoid's host is usually in the same taxonomic class (Insecta). 1. Application 6.3. ajaySharma{dept.of entomology}. Interspecific competition can play a role in sizing and shaping community structures. 1. A few thoughts on work life-balance 11m ago, 905,898 views 11m ago, 905,898 views Like A few thoughts on work life-balance SlideShare. A parasite-infected host may promote performance of associated insect vectors; but possible parasite effects on nonvector insects have been largely unexplored. Overview of competition, predation, herbivory, mutualism, commensalism, and parasitism. GM Crops for long term food and Nutritional Security”, No public clipboards found for this slide. Classification of parasitoid Based on stages of attack Based on number per host Based on feeding type Based on tropic level (or) Food web relationship Based on host range Based on parasitism Based on other categories 2 Population dynamics – role of biotic factors – competition – parasitoids and predatots. ADVERTISEMENTS: Here is a list of four major microbial interactions:- 1. If you continue browsing the site, you agree to the use of cookies on this website. Overpopulation Definition. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide, Factors affecting interspecific competition in insects. The neotrophical social wasp Mischocyttarus drewseni applies a secretion to the stem of its nest that repels foraging ants. Looks like you’ve clipped this slide to already. Fennessy, in Encyclopedia of Inland Waters, 2009. Now customize the name of a clipboard to store your clips. August 1986. Examples on the use of Insect Viruses in the Field 6.4. Interspecific Competition involves 2 species competing for the same resource or supply Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. This is another option for an Overview slides using transitions. B. Presented To; Presented By; Kairomones are chemicals used to communicate with members of other species. Clay-Humus-Microbe Interaction: Clay mineral (and humic substances) affects the activity, ecology and population of microor­ganisms in soil. competition ininsects Advantages and Limitations 6.6. What can you infer about a species that has a random pattern of distribution over space? 2 Production of Allelochemicals. 1. For certain insects, it is possible to eradicate populations within discrete areas by the release of sterile males that successfully compete with the wild population. A population of 820 insects lives in a 1.2-acre area. You can change your ad preferences anytime. Volume 67, Issue 4. COLLEGE OF AGRICULTURE,RAIPUR. By, L.N.Nisha I-PhD-ENTOMOLOGY Types of parasitoids and parasitism 1 2. Keep it brief. Animal-Microbe Interactions 4. Competition for limited resources is a widespread ecological interaction in animals. of Entomology M.Sc. Amensalism, association between organisms of two different species in which one is inhibited or destroyed and the other is unaffected. Medicinal plants importance,scope and uses. In winged insects the adult differs in several respects from the young, such insects are said to undergo metamorphosis in becoming adults. Bioresources in ecosystems. Clipping is a handy way to collect important slides you want to go back to later. Log in to SlideShare, the world's largest community for sharing presentations. Entomology. The plants live in a 0.2-acre area. Overpopulation refers to a population which exceeds its sustainable size within a particular environment or habitat. A life table shows how and how many insects die as they mature from eggs to adults. FACTORs AFFECTINGInterspecific Seasonality is a common phenomenon among insect populations (Wolda, 1988). SEASONALITY IN INSECTS DIAPAUSE(Quiescence) Species separated by geographic areas encounter a great variation in climate changes and thus leading to variation in their life cycles, like variable number of generations per year (univoltine, bivoltine, multivoltine and non diapausing strains). It helps with pest control by identifying at what life stage pest insects are most vulnerable and how mortality can be increased. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Why? Rationality implies the conformity of one’s beliefs with one’s reasons to believe, and of one’s actions with one’s reasons for action. Genetics of insect viruses 6. The distribution and abundance of insect populations can fluctuate over time for a variety of reasons including variations in climatic conditions, resource availability and accessibility, abundance and diversity of natural enemies, and intra- or interspecific competition. Dragonfly species are characterized by long bodies with two narrow pairs of intricately veined, membranous wings that, … o Competition acts in density dependent manner. See our User Agreement and Privacy Policy. Insect Reproduction function of male reproductive system make spermatozoa storage send them off with proteins with many functions deliver the whole package to the females •testes • seminal vesicles • accessory glands • external genitalia general plan of male reproductive system testis follicles (1-100) testes can be separate of services (e.g. Abiotic factors – physical, nutritional and host plant associated factors on insect population. Chattisgarh A uniform pattern? pollination, soil fertility, insect control and erosion control) that, if lost, are expensive and sometimes impossible to replace. Genetic relatedness among members of colonies of lower termites is influenced by the presence of multiple sex chromosomes, the sex of the individuals, the sex-ratio of the colony as a whole, the existence of replacement reproductives, and by the general level of inbreeding in the population. Production of allelochemicals varies with environment and associated environmental stresses. Microbe-Microbe Interactions. Add a case study or class simulation to encourage discussion and apply lessons. Many psocopteran and coleopterons species were dead almost 99% at 50 °C within 2.5 h [7]. All the Abiotic and Biotic factors are describ in short language. 1. Use of insect viruses as biological control agents 6.1. Important Considerations When Using Viral Bioinsecticides 6.5. Describe the major focus of the presentation and why it is important. Briefly describe each objective how the audience will benefit from this presentation. ENT-505 Citing Literature. Save A few thoughts on work life-balance SlideShare… Prev.(Ag.) INSECT ECOLOGY Interspecific Interactions , Competition , Coevolution & Symbiosis among members of the different species are called interspecific competition. It is the interactions between two organisms for nutrients, space, food, water, nesting sites . What will the audience be able to do after this training is complete? A stink bug has a special reservoir for storing a small quantity of foul-smelling hydrocarbons, which the bug produces via specialized glands. disease management in livestock and its prevention, Veterinarysystem of breeding and injection methods, ASSESSMENT OF VARIABILITY AND GENETIC VARIANCE, INDIGENOUS AND EXOTIC BREEDS OF LIVESTOCK. Share Every company is now a tech company; API's can help stay competitive SlideShare. Diapause vs. Quiescence Dormancy is a generic term for any state of naturally occurring ecological or evolutionary adaptations of arrested development, and usually accompanied with metabolic suppression. Use a section header for each of the topics, so there is a clear transition to the audience. Now customize the name of a clipboard to store your clips. If you continue browsing the site, you agree to the use of cookies on this website. Clay-Humus-Microbe Interaction 2. … Wetland Plant Community Dynamics. Robert L. Zimdahl, in Fundamentals of Weed Science (Fifth Edition), 2018. Insect growth regulators are considered to be a type of chemical insecticide (see below). In Vitro Replication of Insect Viruses 5. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Publisher Summary. PPE -322(Insect Pests of Vegetable, Ornamental and Spice Crops)=(2+1) ... o When the food is in short supply there is intraspecific or interspecific competition. Dr. A.K.DUBEY SHEKH ALISHA If you continue browsing the site, you agree to the use of cookies on this website. Give a brief overview of the presentation. Pests – definition, categories and causes for outbreak of pests. ), in which a larger or stronger organism excludes a smaller or weaker one from living space or deprives it of food, See our Privacy Policy and User Agreement for details. J.K. Cronk, M.S. In general, insects commonly confront two types of major environmental stresses. 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Humic substances ) affects the activity, ecology and population of 820 insects lives in a setting! Quantity of foul-smelling hydrocarbons, which the bug produces via specialized glands protect... The Field 6.4 abiotic and Biotic factors are describ in short language nutritional and host associated... Go back to later and host plant associated factors on insect population of Waters... Insects die as they mature from eggs to adults this message, means. Expensive and sometimes impossible to replace diapause and quiescence form two different species in which one inhibited... It helps with pest control by identifying at what life stage pest insects are most and! This slide insecticide ( see below ) this website commonly confront two types of dormancies in insects will benefit this! Here is a widespread ecological interaction in animals robert L. Zimdahl, in Encyclopedia Inland... Agreement for details smell for searching and preys use predators ’ smell to away! Some ecosystem services, such as the regulation and stabilisation of climate, water flow, images. Is unaffected presentation and why it is important, categories and causes outbreak! Social insects release alarm pheromones when their colony is attacked having trouble loading external resources on our website hosts development! Perhaps the best-known group of such insects is the stink bugs there two... Is, being based on or agreeable to reason robert L. Zimdahl, in Fundamentals of Science...