importance of species diversity

Traditional medicine continue to play an essential role in health care, especially in primary health care. Global importance. Three hypotheses were tested: (1) Few species contribute to most of each ecosystem function, (2) largely the same species account for most of the different functions, and (3) a decrease in species dominance will allow different species with different traits to contribute to different functions and, as a consequence, will increase the importance of species richness to ecosystem multifunctionality. The distribution and number of species in an area are referred to as species diversity whereas ecological diversity describes the diversity at the ecosystem level. Differentiate between species diversity and ecological diversity. Most cultures, at least at some time, have recognized the importance of conserving natural resources. 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. It also takes into account evenness, which is the variation of abundance in individuals per species in a community. It is distinguished from genetic variability, which describes the tendency of genetic characteristics to vary. Species diversity takes into consideration species richness, which is the total number of different species in a community. More specifically, genetic diversity can be a species natural defense system against disease and survival even under extreme weather conditions but more importantly, genetic diversity can help weed out unfavorable traits in species which maximizes opportunities for thriving in any environment [2]. Others, such as salt flats or a polluted stream, have fewer. Genetic diversity B. When discussing the influence of rare species, it is important to consider how rarity is defined because definitions vary across studies and conservation strategies. ... explain the importance of random sampling in determining the biodiversity of an area . Our biodiversity is very important to the well-being of our planet. It is not a simple wealth. Each species has a role in the ecosystem. Around 150,000 species have been formally described in Australia, but this is only about 25 per cent of the total number present. 1 Department of Entomology and Nematology, University Species diversity. Species research for solutions to medical problems is an age-old endeavor. One overriding importance is that biodiversity is responsible for the continuity of the planet because it supports majority of the vital environmental life cycles such as the oxygen cycle, the water cycle, and the nitrogen cycle just to mention a few. Many species, such as insects, remain largely undiscovered. #146 Assessing species diversity There are 2 types of sampling: random sampling and systematic sampling. Ecosystems such as parks and other protected areas also provide recreation and a knowledge resource for visitors, and biodiversity is a frequent source of inspiration for artists and designers. Ecologists have long questioned how this diversity is maintained. By dropping the naive assumption that distinct species have nothing in common, working with effective numbers, and using diversity profiles, we arrive at a system of diversity measurement that should lay much of this suspicion to rest. diversity as they are usually dominated by plant monocultures com-posed of a single cultivar or variety (Tooker & Frank, 2012). Genetic diversity is the raw material for evolutionary adaptation in a species and is represented by the variety of genes present within a population. Random sampling. In Australia, more than 80% of plant and animal species are endemic, which means that they only occur naturally in Australia. This species often feeds on the ground; therefore, the greater species richness in the undergrowth is an important component of its occurrence. Australia is renowned for its globally distinct ecosystems, made up of diverse flora and fauna. The proposed index incorporates an importance weight to each species of organisms found in an ecosystem. Species diversity is a measurement of biological diversity to be found in a specific ecological community. Other measures of biodiversity include genetic diversity (the variety of a specific organism’s genes), and ecosystem diversity (the number of different ecosystems found within a particular area). Biodiversity includes not only species we consider rare, threatened, or endangered but also every living thing—from humans to organisms we know little about, such as microbes, fungi, and invertebrates. A species does not necessarily need to be genetically diverse to thrive, if it lives under exactly the right conditions. There is an urgent need to reconsider the importance of diversity. Q.8. Finally, if rare species contribute more to functional diversity than common species, then much of a community's functional diversity can be explained by the rarest species (Curve C). A new Importance-Diversity Index is proposed as an enhancement to the traditional Shannon’s diversity index. Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species, it ranges widely from the number of species to differences within species and can be attributed to the span of survival for a species. Habitat simplification, species loss and species succession often enhance communities vulnerabilities as a function of environmental receptivity to ill health. Ecological communities characteristically contain a wide diversity of species with important functional, economic and aesthetic value. For example, bees are primary pollinators. The pursuit of compounds that could lead to breakthrough drugs features prominently in the development of the Nagoya Protocol on Access and Benefit-Sharing in the Convention on Biological Diversity . Importance of species diversity, pollination and . The importance of species diversity for human well-being in Europe. Q.9. Biodiversity of the reef A simple way to look at an ecosystem’s biodiversity is to look at the number and variety of different species that it supports —k nown as species diversity. 1* Mahantesh Kamatyanatti, 2 Shailesh Kumar Singh and 3 Bhallan Singh Sekhon . Species diversity C. Ecosystem diversity 3 Types of Biodiversity 12. Species diversity is the variety of species within a habitat or a region. In other words, genetic diversity can be said to the capability of the species which can adapt to the varying changes in the environment. ( 2006 ) showed that stand structure and shrub and herb coverage were essential habitat variables for hazel grouse occurrence in … There are numerous reasons why species diversity is essential. Mathys et al. It is both a property of the living and an essential condition for its survival. Resistance to disease is a chief benefit to maintaining crop biodiversity; lack of diversity in crop species risks an entire crop being wiped out by a disease to which it is susceptible. Winfree et al. Loss of habitat diversity thus potentially leads to loss in species diversity (the union of the species in all habitats, indicated by different symbols) (B). Diversity is important for species in order to maintain resilience against unexpected events, such as sudden climate changes or natural disasters, like forest fires or floods. Recent studies have shown that plant genetic diversity can be important for ecosystem functioning and in some cases its effects are compara-ble in magnitude to the effects of species diversity (Crutsinger et al., Some ecologists view diversity indices with suspicion, questioning whether they are biologically meaningful. the importance of species diversity in sustaining ecosystem services. A.9. Classic theory shows that stable coexistence requires competitors to differ in their niches; this has motivated numerous investigations of ecological differences presumed to maintain diversity. With the aid of the keystone structure concept we are able to abandon the discussion of ‘keystone vs. non‐keystone species’ (see Hurlbert, 1997) and focus on spatial structures that are provided by specific species: for ecosystem function and species diversity a given structure itself is important, independent of whether it is made up of one or several ecologically similar species. The majority of these, however, have taken place at relatively small experimental scales. Genetic diversity is one alternate concept of biodiversity. looked across more than 3000 square kilometers for relationships between biodiversity and crop pollination (see the Perspective by Kremen). A species’ potential to adapt to changing environments or new diseases depends on this genetic diversity. The ability to create new crop varieties relies on the diversity of varieties available and the accessibility of wild forms related to the crop plant that can be bred with existing varieties. The importance weights are derived Unfortunately, more than one-third of those species are threatened, but the bald eagle and American bison are examples of conservation successes because of their role as national symbols. Genetic diversity is the total number of genetic characteristics in the genome of a species. Ferris, Howard 1 , and H. Tuomisto 2 . A.8. Some habitats, such as rainforests and coral reefs, have many species. Biodiversity loss, also called loss of biodiversity, a decrease in biodiversity within a species, an ecosystem, a given geographic area, or Earth as a whole. Gustav Paulay in 2003 described the marine species diversity of Guam, some 1,200 km from Palau with a relatively complete listing, providing a “nearby” geographic comparison to Palau. Definition of Genetic Diversity Genetic diversity is the diversity or variability within species… What is the significance of genetic variation in the Rauwolfia vomitoria plant? Importance of Species Diversity. Importance of biodiversity for health research and traditional medicine. Healthy ecosystems and rich biodiversity: Increase ecosystem productivity; each species in an ecosystem has a specific niche—a role to play. At the Center for Biodiversity and Conservation, we include humans and human cultural diversity … It represents the species richness or number of species found in an ecological community, the abundance (or number of individuals per species), and the distribution or evenness of species. It is very important as the genes of any population are quite essential. With between 3 and 30 million species on earth, here are the reasons why they are important. Perhaps one year, one population does well and in another year a different population does well. If a fire tears through a forest where only one species exists and is wiped out by the fire, the forest ecosystem is less likely to deal with this loss than if only one out of 20 species disappeared. Many still do, but many do not. 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