Clipping is a handy way to collect important slides you want to go back to later. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. It is the degree of variation of life forms within a ecosystem or Biome or entire planet called BIODIVERSITY. Ecological role of Biodiversity All the species in ecosystem participate in the numerous ecological processes that occur within and between the ecosystems. High diversity among types of ecosystems means that there will also be a high diversity of species themselves. Genetic diversity is the variation in the genetic composition of individuals in a population, community or species • Evolves as a result of many different processes: e.g. SPECIES DIVERSITY - number or variety of species in a particular region. However, no theories predict the conditions under which different relationships between species diversity and genetic diversity might arise and therefore when one level of diversity may be predicted using the other. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Genetic Diversity, Species Diversity & Ecosystem Diversity are types of Biodiversity.Biodiversity is of mainly three types which are above mentioned. Species evenness- is the abundance of the individual members within a … Ecosystems 1 Conceptual diagram of our framework.. Ecosystem homogenization (caused by, for example, human disturbance) results in a change in habitat diversity (A).Because habitats have different physical and chemical characteristics, they are likely associated with different sets of species. Introduction. Species diversity depends as much on the genetic diversity as on the environmental condition. When we consider ecosystems, diversity is sometimes used to mean how may different species there are in a community. See our User Agreement and Privacy Policy. You can change your ad preferences anytime. Even within a single ecosystem, the numbers of species can be impressive. For example, there is a large region of dry forest and savanna in Brazil known as the Cerrado (see Figure Cerrado Forest). This ecosystem alone hosts over 10,000 species of plants, almost 200 species of mammals, over 600 species of birds, and about 800 species of fish. The extraordinary species richness of freshwater fishes has attracted much research on mechanisms and modes of speciation. Main Difference – Genetic Diversity vs Species Diversity. Individuals that belong to the same species are able to mate and produce offspring that are fertile. No public clipboards found for this slide. If you continue browsing the site, you agree to the use of cookies on this website. the number of different species ; the relative numbers of individuals of each species. Looks like you’ve clipped this slide to already. Species diversity is determined not only by the number of species within a biological community—i.e., species richness—but also by the relative abundance of individuals in that community. Glossary; Whittaker (1972) described three terms for measuring biodiversity over spatial scales: alpha, beta, and gamma diversity. These definitions indicates the main difference between species diversity and ecosystem diversity. 17.3(b)) (Diemer et al . species diversity, functional diversity, and ecosystem functioning 203 across a range of species richness from 1 to 32 (Fig. Biological diversity is a key concept in the life sciences and plays a fundamental role in many ecological and evolutionary processes. Sixteen sites of Bhitarkanika mangrove areas were surveyed for the collection of roots and soil samples. Genetic Diversity. Species evenness: Relative abundance of in… Genetic diversity B. 2000b). Species diversity and genetic diversity may be correlated as a result of processes acting in parallel at the two levels. The Definitive Guide to Diversity Types in the Workplace in 2020 [updated October 2020] This is the ultimate guide to Diversity Types in the Workplace in 2020.The same guide can be applied to the society, community about all aspects of diversity.The guide I will cover: The diversity of our biosphere ranges from macromolecules of a cell to different biomes.Genetic diversity, species diversity, and ecological diversity are three types of … Type of biodiversity 1. Functional diversity, which is a subset of this, is measured by the values and range in the values, for the species present in an ecosystem, of those organismal traits that influence one or more aspects of the functioning of an ecosystem. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Hundreds of studies spanning terrestrial, aquatic, and marine ecosystems show that high-diversity mixtures are approximately twice as productive as monocultures of the same species and that this difference increases through time. The variation among organisms on Earth is called biological diversity, or biodiversity. more sciencebitz resources on iTunesU and iBooks https://itunesu.itunes.apple.com/enroll/DEZ-HWS-HNJ https://itun.es/gb/ymzI6.n. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Ecosystem Biodiversity is further divided into three parts i) Alpha Biodiversity, ii) Beta Biodiversity iii) Gamma Biodiversity Biodiversity is the variety and variability among living organisms and the ecological complexes on the planet. Species diversity is the number of different species that are represented in a given community (a dataset). We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime. • It is the variety of different habitats/ecosystems in a particular area (e.g.. wetland, woodland, grassland). Species diversity 4. Species diversity - number of different species that are represented in a given community (a dataset) -incorporates both the number of species in a community (species richness)and the evenness of species‘ abundances. Species diversity and; Community or Ecosystem diversity . Fig. 5. Example Animals cannot synthesis their food directly but depend on the plants either directly or indirectly. See our Privacy Policy and User Agreement for details. - A range of different things. A study was carried out to assess the species diversity of arbuscular mycorrhizal (AM) fungi in different salinity zones of Bhitarkanika mangroves of Orissa, India. Species diversity is defined as the number of different species present in an ecosystem and relative abundance of each of those species. Looks like you’ve clipped this slide to already. The good climate with good physical geography supports a better species diversity. Within individual species, there are varieties, that are slightly different from one other. First, different species may be favoured in competition with different genotypes of the dominant, such that genetic diversity represents a form of spatially varying selection; this is the ‘diversity begets diversity’ hypothesis (Whittaker 1975) recast to cross organizational levels from genes to species. Biology 120 lectures for 2nd exam 2012 2012, Traditional versus Modern Biotechnology (Exam 2 coverage), No public clipboards found for this slide. Species diversity C. Ecosystem diversity 3 Types of Biodiversity 12. We here review research on speciation in freshwater fishes in light of speciation theory, and place this in a context of broad-scale diversity patterns in freshwater fishes. Species Ecosystem diversity is the effective number of different species that are represented in a collection of individuals diversity refers to the diversity of a place at the level of ecosystems. 1. Diversity is greatest when all the species present are equally abundant in the area. Herbivores strongly influence plant communities and ecosystem processes in a variety of habitats, often changing vegetation composition, species diversity and productivity (Milchunas, Sala & Lauenroth 1988; McNaughton et al. The name of an ecosystem doesn't automatically imply that all the species in that ecosystem are the same everywhere in the world. INTRODUCTION The term Biodiversity was first coined by Walter G. Rosen in 1986. Species richness:Number of different species present in an ecosystem. There are two constituents of species diversity: 1. Option C: Biodiversity in Ecosystems Habitat Diversity The range of different habitats in an ecosystem, community or biome associated with the variety of niches that may be exploited by different species. •What is biodiversity ? These differences are due to differences in the combination of genes. Conservation of habitat diversity usually leads to the conservation of species and genetic diversity… Colder regions support less than the warmer regions for species diversity. Species diversity is best describe as a combination of richness and evenness. See our User Agreement and Privacy Policy. Biological diversity, abbreviated as Biodiversity, represent the sum total of various life forms such as unicellular and multi cellular organisms at various biological levels. • The ecosystems of the world are maintained by their biodiversity. Upcoming SlideShare. Species richness is a term which is used to measure the biodiversity of a given site. If you continue browsing the site, you agree to the use of cookies on this website. •Where is biodiversity greatest . Since each species work in many different ways to contribute to a healthy ecosystem, having flaws or a dwindle in species diversity can have serious repercussion to the environment. Species diversity refers to the number of different species that are represented in a given community while ecosystem diversity refers to the variety of different ecosystems within an area. The effective number of species refers to the number of equally abundant species needed to obtain the same mean proportional species abundance as that observed in the dataset of interest (where all species may not be equally abundant). See our Privacy Policy and User Agreement for details. • What is biodiversity ? Genetic diversity - A species with different genetic characteristics is known as a sub-species or "genera". If you continue browsing the site, you agree to the use of cookies on this website. Now customize the name of a clipboard to store your clips. Components of species diversity: species richness and relative abundance. Now customize the name of a clipboard to store your clips. •Why is biodiversity important? For example, in the species of human beings, each human shows a lot of diversity in comparison to another human. Ecosystem diversity involves different part of ecosystem like niches, trophic levels, energy flow, food chain and recycling of nutrients. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Clipping is a handy way to collect important slides you want to go back to later. Biodiversity most oftenrefers to the number of species in a certain area, or the species diversity. Option C: Biodiversity in If you continue browsing the site, you agree to the use of cookies on this website. 1997; Spehn et al . Species diversity is a major determinant of ecosystem productivity, stability, invasibility, and nutrient dynamics. It is basically the variety of species expressed at the genetic level by each individual in a species. The term differs from biodiversity, which refers to variation in species rather than ecosystems. Seedlings of mangrove species were tested for AM colonization through root clearing and staining technique. An ecosystem that has greater species biodiversity contains more ecological niches. No two individuals belonging to the same species are exactly similar. Thus an ecosystem is a community of different species interacting with one another and with their non living environment and one another and with their non- living environment exchanging energy and matter. Species Diversity • The number and variety of life forms present in a biological community • About 8.7 million organism in our diversity Species Richness – is the number of different kinds of species in a particular are. Each species is specialized to a type of ecosystem … Tropical areas have greater species richness as the environment is conducive for a large number of species 2. Increased species biodiversity is also known as species richness. 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