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Species Richness & Diversity ... - Measuring Diversity Species diversity Often defined as a combination of the number of species and their relative abundance. • Define species diversity as species richness (number of species) and species abundance (number of individuals of each species) Discuss with students that species diversity is variable. Species richness (SR) per lake ranged from seven to 26 (mean = 13.22, SD = 4.48) and functional dispersion (FDis) ranged from 0.09 to 0.23 (mean = 0.16, SD = 0.04). - Title 2. the conversion of a species diversity index to an equivalent # of species; all indices can be converted into this, an intuitively appealing species equivalent (pg. Biodiversity Is a Crucial Part of the Earth’s Natural Capital. Genetic diversity: diversity in the alleles of a single gene (2). Within localities (i.e. Free Ecology PPT: Threats to Biodiversity: Habitat destruction Deforestation, Invasive species, Genetic pollution, Climate changes, Diseases and Human population At the outset, let us be clear why the prob-lem of understanding species diversity is com-plicated. It occurs within a species as well as between species. Biomes: regions with distinct climates/species. - Biogeography geographic patterns of species diversity and distribution contributes to global biodiversity reflects patterns of evolution, dispersal, and extinction, Readings, enemy release and biodiversity hypotheses. All reference to questions and/or pages in the book are from Nelson Thorne's AQA AS Biology student book - … My examples will be drawn mostly from the other papers of this sym-posium. Over-exploitation, pollution and habitat conversion are the main threats to species diversity. 364) dominance preemption model supposes that the first species to invade community preempts a large fraction of the available resources (50-100%). Species Abundance = Relative abundance of species b. The extent and distribution of genetic diversity in a plant species depends on its evolution and breeding system, ecological and geographical Many of them are also animated. Hill numbers, or the effective number of species, are increasingly used to characterize the taxonomic, phylogenetic, or functional diversity of an assemblage. Species diversity depends as much on the genetic diversity as on the environmental condition. While researchers continue to introduce new species to science, contributing further positive developments for the state of the country’s biodiversity and endemism, the fact remains that the country also ranks among the most threatened ecological regions today. Species evenness- is the abundance of the individual members within a particular species 4. Furthermore, correlations between species diversity and habitat heterogeneity in different locations are subject to equilibrium and non‐equilibrium dynamics. Species 600 tropical spp. At the outset, let us be clear why the prob-lem of understanding species diversity is com-plicated. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. Species diversity is important for ecosystem health and for medicine. Measuring Biodiversity, - Marine Diversity Ocean Structure and Biodiversity, Global Biodiversity: Patterns and Processes. 400 temperate spp. Presentation Summary : Species Richness & Diversity Species richness is the number of different species in an area. Biodiversity, Species Interactions, and Population Control, - Biodiversity, Species Interactions, and Population Control Chapter 5, | PowerPoint PPT presentation | free to view, 2. However, no theories predict the conditions under which differentrelationships between species diversity and genetic diversity might arise and there-fore when one level of diversity may be predicted using the other. Main Difference – Genetic Diversity vs Species Diversity. (4). Species diversity can be a useful tool for the ecologist, but one must be clear as to the particular definition and measure being used. - Measuring Diversity Species diversity Often defined as a combination of the number of species and their relative abundance. A common measure of this variety, called species richness, is the count of species in an area. • Define species diversity as species richness (number of species) and species abundance (number of individuals of each species) Discuss with students that species diversity is variable. BIOLOGY 157: LIFE SCIENCE: AN ENVIRONMENTAL APPROACH (Biodiversity, Niche, Species-Species Interactions). - Chapter 4: Biological Communities and Species Interactions Understand the fundamental factors driving community development I. Essential question: How do biologists identify species? Ecological Communities species diversity and community structure. diversity available to humans in plant species, so that the genetic diversity can be safely conserved and efﬁciently used. He correlated foliage height diversity with bird species diversity ... Measurements of Ecological Diversity How to measure Diversity in an ecological system Laila, Vimal. Presentation Summary : Ecosystem diversity. (4). Presentation Summary : Species Richness & Diversity Species richness is the number of different species in an area. species diversity . For example, in the species of human beings, each human shows a lot of diversity in comparison to another human. Biodiversity, also called biological diversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth. - Title: Biological Diversity Author: Rebecca Gustafson Last modified by: Tracey Stock Created Date: 8/20/2014 1:44:37 PM Document presentation format. No two individuals belonging to the same species are exactly similar. Biodiversity Is a Crucial Part of the Earth’s Natural Capital. No two individuals belonging to the same species are exactly similar. Biodiversity, on the other hand, is an unclear concept, and its value to the ecologist is questionable. Biodiversity Is A Crucial PPT. Measuring Species Diversity 1. Bivalve molluscs (overhead) Terrestrial birds, ... Tunicate Species Richness. Diversity Divisions Alpha diversity refers ... - Human action is often claimed to be the main cause behind ... Browsing, Grazing, Fire or other biomass outtake are regarded as disturbance. Rarefaction: How do human activities affect species diversity? The principles can be applied to any unit of ecological organization. 13.2.1 Species Richness This is the oldest and the simplest concept of species diversity - the number of species in the community or the region. Boasting an impressive range of designs, they will support your presentations with inspiring background photos or videos that support your themes, set the right mood, enhance your credibility and inspire your audiences. Biomes: Regions With Distinct Climates/species. All life shares common properties, which distinguishes living (biotic) from non-living (abiotic). Biomes: regions with distinct climates/species. (1). Beta diversity ($\beta$-diversity) is a measure of change in diversity between habitats or ecosystems and is thus a measure of spatial turnover of species. Among species, birds have an important place because they are visible and highly valued by humans. Lesson and activities for AQAs as Biology 17.1 & 17.2 Species diversity é human activity. from the same gametophyte, Key bisexual gametophyte. The term biodiversity was coined as a contraction of biological diversity by E.O. Ecosystem Diversity. In other words, biodiversity is the occurrence of different types of ecosystems, different species of organisms with the whole […] The smallest sample size may be 1 km^ and the largest may be the entire region or country. 3. RECENT ISSUES ON BIODIVERSITY Some 75 per cent of the genetic diversity of crop plants been lost in the past century. Ecological diversity. It is generally recognized that plant genetic diversity changes in time and space. An island with 2 bird species and 1 lizard species is more diverse than an island with 3 bird species. Biodiversity Is A Crucial PPT. Biodiversity is a measurement of the variety of life. The wood in … Presentation Summary : Ecosystem diversity. Effects of Gopher Mounds on Plant Species Diversity in a Meadow System. Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world. It’s numbers of species as well as categories of organisms. 2 The fern spore 3 Although this illustration Most fern species produce a single develops into a small, shows an egg and sperm type of spore that gives rise to a photosynthetic gametophyte. (Indices N1 and H' adj have not been included in the dendrogram). Who Lives Where and Why? The variety of life forms of a particular area are referred to as biodiversity. Species Diversity – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 1a8ec8-ZDc1Z Species diversity: Measures the species number variations in different genera at a particular habitat Species Richness & Diversity ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 5b8197-Nzk5Z Biological determinants of species diversity. Community Processes: Species Interactions and Succession Chapter 9 a. They are all artistically enhanced with visually stunning color, shadow and lighting effects. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. Community Processes: Species Interactions and Succession – Chapter 9           a. Biodiversity, Species Diversity, And Species Richness 741395 PPT. - Species Diversity Biogeography November 7-14, 2007 Geographical Ecology Ecological Patterns Species diversity Species distributions Island patterns Community ... - Biological Diversity Chapter 5 Evolution Change in inherited characteristics of a population from generation to generation. Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world. Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. This article gives an overview of biodiversity, their types, threats and conservation measures. • Species Richness -the number of species that live in a certain location. For example, if species diversity patterns show year‐to‐year variations this will have great implications for … - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. CrystalGraphics 3D Character Slides for PowerPoint, - CrystalGraphics 3D Character Slides for PowerPoint. 1. It’s numbers of species as well as categories of organisms. Skip to main content Accessibility help We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Whittaker described three common metrics used to measure species-level biodiversity, encompassing attention to species richness or species evenness: . Biodiversity, Species Diversity, and Species Richness Drill: 4/30 How many different species would you guess live right outside of Poly? Species richness - the simplest of the indices available. Diversity can occur at three levels: genetic diversity (variation in genes and genotypes), species diversity (speciesrichness)andecosystemdiversity(communit- Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to impress any audience. McIntosh (1967) coined the name species richness to describe this concept. Many of them are also animated. Exotic plant invasions and the enemy release hypothesis. Ole R VETAAS Unifob Global, University of Bergen, 5015 Bergen, Norway. Birds, furthermore, play an informational role in attracting public attention to natural habitat. Do you have PowerPoint slides to share? 13.1 BACKGROUND PROBLEMS . Diversity Divisions Alpha diversity refers ... Chapter 4: Biological Communities and Species Interactions. Species density or the number of species per m 2 is most commonly used to measure species richness. More organisms are produced each generation than, Considered separate species if they cannot, Change in frequency of a single allele due to, Succession a process of community development, Occurs when there is a major event that wipes, Usually the first plant species to colonize are, Increase in diversity population numbers, Catastrophic interuption of successional stages, Dominance of one species reduced richness, Early, mid and late successional species can. 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 biodiversity. Species Richness =Variety of species or the number of different species (or genera, families, etc.). Such regulation of diversity requires maintenance of relatively constant levels of productivity and resource availability and an open system with opportunity for The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. The Ecological Niche (9-1,) 1) Role of ... - Tunicates. 2. α diversity), α-SGDC describes the relationship between species diversity in a local community and intrapopulation genetic diversity within the species, and both positive and negative α-SGDCs have been observed in natural systems (Karlin et al., 1984, Wehenkel et al., 2006, Marshall and Camp, 2006, Papadopoulou et al., 2011, Vellend et al., 2014). Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. Species diversity. – Life evolves leading to diversity.Life evolves leading to diversity. Species Richness & Diversity ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 5b8197-Nzk5Z - only residents are counted - treats common and rare species with the same weight Species diversity Using molecular analyses we investigated the species composition, diversity, distribution, and relative frequencies of the genus Ulva along the entire coast of Jeju Island, off the southern tip of Korea. Species diversity: rarefaction, evenness and indices - PowerPoint PPT Presentation Actions Remove this presentation Flag as Inappropriate I Don't Like This I like this Remember as a Favorite - Origins of Biological Diversity Chapter 15: pp 322-351 Concept 15.1 The origin of new species. Species richness, as measure of diversity, has been used by ecologists. Species diversity is a combination of species richness and species abundance. 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