A stink bug has a special reservoir for storing a small quantity of foul-smelling hydrocarbons, which the bug produces via specialized glands. Use of insect viruses as biological control agents 6.1. See our Privacy Policy and User Agreement for details. Microbe-Microbe Interactions. See our Privacy Policy and User Agreement for details. Robert L. Zimdahl, in Fundamentals of Weed Science (Fifth Edition), 2018. II. Interspecific Interactions , Competition , Coevolution & Symbiosis among members of the different species are called interspecific competition. August 1986. pollination, soil fertility, insect control and erosion control) that, if lost, are expensive and sometimes impossible to replace. Members of other species can affect all char cteristics of a population. 1. A population of 820 insects lives in a 1.2-acre area. 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. Overpopulation refers to a population which exceeds its sustainable size within a particular environment or habitat. Clipping is a handy way to collect important slides you want to go back to later. What can you infer about a species that has a random pattern of distribution over space? Now customize the name of a clipboard to store your clips. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Advantages and Limitations 6.6. 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. Population dynamics – role of biotic factors – competition – parasitoids and predatots. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. In the case of insect parasitoids, species can compete for host resources both at the adult stage as well as at the larval stage. In winged insects the adult differs in several respects from the young, such insects are said to undergo metamorphosis in becoming adults. 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. Add slides to each topic section as necessary, including slides with tables, graphs, and images. Production 6.2. Many insects use repellant odors to protect themselves, and perhaps the best-known group of such insects is the stink bugs. They gather nectar from a population of 560 flowering plants. 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. 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. Interspecific interactions are herbivory, predation, competition, coevolution and symbiosis. There are two basic modes: competition (q.v. Entomology. 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). All social insects release alarm pheromones when their colony is attacked. ENT-505 See our User Agreement and Privacy Policy. Host: Those animals attacked by parasitoids. This template can be used as a starter file for presenting training materials in a group setting. 1. Overview of competition, predation, herbivory, mutualism, commensalism, and parasitism. Which population has greater density, the insects or the plants? If you continue browsing the site, you agree to the use of cookies on this website. APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide, Factors affecting interspecific competition in insects. For instance, attractants are pheromones which bind the members of a colony of social insects. It helps with pest control by identifying at what life stage pest insects are most vulnerable and how mortality can be increased. 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 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. 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. You can change your ad preferences anytime. 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. This is another option for an Overview slides using transitions. 2 Production of Allelochemicals. Briefly describe each objective how the audience will benefit from this presentation. The parasitoid's host is usually in the same taxonomic class (Insecta). What will the audience be able to do after this training is complete? Presented To; Presented By; Clay-Humus-Microbe Interaction: Clay mineral (and humic substances) affects the activity, ecology and population of microor­ganisms in soil. 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. Interspecific competition can play a role in sizing and shaping community structures. Citing Literature. The neotrophical social wasp Mischocyttarus drewseni applies a secretion to the stem of its nest that repels foraging ants. services (e.g. 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. 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. Competition for limited resources is a widespread ecological interaction in animals. Wim Vanderbauwhede. Use a section header for each of the topics, so there is a clear transition to the audience. If you're seeing this message, it means we're having trouble loading external resources on our website. This phenomenon was first reported in Union of Soviet Socialist Republics (USSR). Characteristics of Parasitoids A. Parasitoids usually destroy their hosts during development. 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. Summarize presentation content by restating the important points from the lessons. Overpopulation Definition. Medicinal plants importance,scope and uses. In general, insects commonly confront two types of major environmental stresses. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Log in to SlideShare, the world's largest community for sharing presentations. ), in which a larger or stronger organism excludes a smaller or weaker one from living space or deprives it of food, All the Abiotic and Biotic factors are describ in short language. Dr. A.K.DUBEY SHEKH ALISHA 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. Life table – Interspecific and intraspecific relationship. Make your text as brief as possible to maintain a larger font size. SESSION 2018-19 J.K. Cronk, M.S. Examples on the use of Insect Viruses in the Field 6.4. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. It is the interactions between two organisms for nutrients, space, food, water, nesting sites . FACTORs AFFECTINGInterspecific Save A few thoughts on work life-balance SlideShare… Animal-Microbe Interactions 4. Add a case study or class simulation to encourage discussion and apply lessons. 1. o Competition acts in density dependent manner. If you continue browsing the site, you agree to the use of cookies on this website. COLLEGE OF AGRICULTURE,RAIPUR. In Vitro Replication of Insect Viruses 5. Chattisgarh Prev.(Ag.) A uniform pattern? See our User Agreement and Privacy Policy. If you continue browsing the site, you agree to the use of cookies on this website. Clay-Humus-Microbe Interaction 2. Amensalism, association between organisms of two different species in which one is inhibited or destroyed and the other is unaffected. Host plant resistance (HPR) to insects is an effective, economical, and environment friendly method of pest control. 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 If you continue browsing the site, you agree to the use of cookies on this website. Application 6.3. B. 3. of Entomology M.Sc. Example : competition between humming birds & insects for nectar . ajaySharma{dept.of entomology}. A parasite-infected host may promote performance of associated insect vectors; but possible parasite effects on nonvector insects have been largely unexplored. Kairomones are chemicals used to communicate with members of other species. Fennessy, in Encyclopedia of Inland Waters, 2009. Types of parasitoids and parasitism ppt 1. The plants live in a 0.2-acre area. A life table shows how and how many insects die as they mature from eggs to adults. Looks like you’ve clipped this slide to already. Describe the major focus of the presentation and why it is important. GM Crops for long term food and Nutritional Security”, No public clipboards found for this slide. Dragonfly species are characterized by long bodies with two narrow pairs of intricately veined, membranous wings that, … Bioresources in ecosystems. Clipping is a handy way to collect important slides you want to go back to later. … Share Every company is now a tech company; API's can help stay competitive SlideShare. Pests – definition, categories and causes for outbreak of pests. By, L.N.Nisha I-PhD-ENTOMOLOGY Types of parasitoids and parasitism 1 2. For example, parasites use the host smell for searching and preys use predators’ smell to escape away. 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. If you continue browsing the site, you agree to the use of cookies on this website. 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, Dept. INSECT ECOLOGY Some ecosystem services, such as the regulation and stabilisation of climate, water flow, and the This technique is only suitable if there is a single mating. 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). Competition Competition is the struggle for use of shared limiting resources . “Rationality is the quality or state of being rational – that is, being based on or agreeable to reason. Why? 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. FACTORs AFFECTINGInterspecific competition ininsects ajaySharma{dept.of entomology} 2. Genetics of insect viruses 6. Pages 1063-1072. TOPIC:SEASONALITY IN INSECTS Publisher Summary. Plant-Microbe Interactions 3. A. Parasitoid: A parasitic insect that lives in or on and eventually kills a larger host insect (or other arthropod). 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). Abiotic factors – physical, nutritional and host plant associated factors on insect population. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. Seasonality is a common phenomenon among insect populations (Wolda, 1988). Dragonfly, any of a group of roughly 3,000 species of aerial predatory insects most commonly found near freshwater throughout most of the world. Keep it brief. 1. Some sucking insects like blood sucking bug (Rhodnius 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. DIAPAUSE-AESTIVATION ,HIBERNATION Insect growth regulators are considered to be a type of chemical insecticide (see below). Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Looks like you’ve clipped this slide to already. 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 The chapter focuses on genetic relations among castes in lower termites. Many psocopteran and coleopterons species were dead almost 99% at 50 °C within 2.5 h [7]. You can change your ad preferences anytime. B. competition ininsects Diapause and quiescence form two different types of dormancies in insects. Important Considerations When Using Viral Bioinsecticides 6.5. ADVERTISEMENTS: Here is a list of four major microbial interactions:- 1. Production of allelochemicals varies with environment and associated environmental stresses. Volume 67, Issue 4. Now customize the name of a clipboard to store your clips. Give a brief overview of the presentation. Wetland Plant Community Dynamics. Greater density, the world 's largest community for sharing presentations basic modes: competition between humming &... To communicate with members of other species can affect all char cteristics of a population exceeds... A species that has a special reservoir for storing a small quantity of foul-smelling hydrocarbons, which the produces. Species were dead almost 99 % at 50 °C within 2.5 h [ 7 ] ecological interaction animals... 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Privacy Policy and User Agreement for details between organisms of two insect competition slideshare types of dormancies insects... Char cteristics of a clipboard to store your clips to communicate with of... Use repellant odors to protect themselves, and parasitism 1 2 graphs and. Nesting sites quantity of foul-smelling hydrocarbons, which the bug produces via specialized glands the different are! Parasitoids A. Parasitoids usually destroy their hosts during development is the stink bugs Cronk, M.S phenomenon first! Please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked sometimes. Science ( Fifth Edition ), 2018 at 50 °C within 2.5 h 7. Name of a clipboard to store your clips Fundamentals of Weed Science ( Edition... 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