why is biodiversity important a level biology

Uses of biodiversity: Ø Biodiversity, besides its ecological significance, provides a socio-economic asset to the nation. This is a fully editable PowerPoint presentation designed specifically for the new Edexcel A Level Biology B Specification for first teaching in 2015. Understanding how biodiversity evolved and is evolving on Earth and how to correctly use and interpret biodiversity data is important for all students interested in conservation biology and ecology, whether they pursue careers in academia or as policy makers and other professionals (students graduating from our programs do both). Biodiversity describes the richness and variety of life on earth. Biodiversity is important, more than just the 'I want my children to enjoy it' reason. For example, the richness of diversity allows medicines and foods to be naturally available. This A-Level Biology section of Revision Science explains biodiversity classification including examples. It is a very broad and diverse field. It covers the whole of Topic 3 which is Classification and Biodiversity. Biology II. Human activities like changing land use, deforestation and peat bog destruction reduce this. For economic and various life support reasons, it is very important to protect and preserve biodiversity. How does biodiversity vary spatially across the globe? Biological diversity or biodiversity refers to the variety of organisms that exist on the earth, their interrelationships as well as their relationship with the environment. Biodiversity is a measure of how many different species live in an ecosystem. The current high rates will cause a precipitous decline in the biodiversity of the planet in the next century or two. Traditionally, ecologists have measured biodiversity by taking into account both the number of species and the number of individuals in each of those species. Productive use: Ø Products commercially harvested from biodiversity for exchange in market. means having as wide a range of different species in an ecosystem as possible. We value biodiversity for many reasons, some utilitarian, some intrinsic. Biodiversity or biological diversity is a term that describes the variety of living beings on earth. A threat to biodiversity poses a threat to humankind. Without biodiversity, all humans would basically be clones of each other. These three levels work together to create the complexity of life on Earth. It is important in natural as well as artificial ecosystems. * Biodiversity also refers to number of different species living in a particular region. So really, the important shift here is to stop thinking of the planet as a physical system but as a linked biological and physical system. Documenting spatial patterns in biodiversity is difficult because taxonomic, functional, trophic, genetic, and other dimensions of biodiversity have been relatively poorly quantified. For example deserts and arctic regions naturally have low a biodiversity due to the harsh environment. Indirect use (1). Why Biodiversity is Essential for Sustainable Development. An example would be certain types of moss since they can indicate the level of nutrition in the soil and the acidity. Also, it boosts the productivity of ecosystems because each organism has a specific job.. A bunch of different organisms all having different abilities is more effective than having a group of identical organisms wandering around and only having the ability to do one job. Diversity in marine habitats Even knowledge of taxonomic diversity, the best known dimension of biodiversity, is incomplete and strongly biased toward the species level, megafauna, temperate systems, and components used by people. Biodiversity is a broad term for biological variety, and it can be measured at a number of organizational levels. Search for: The Importance of Biodiversity to Human Life. Genetic diversity is the variety of genes within a species. 2000, Global patterns in biodiversity, Nature, 405, 220-227 The paper by Gaston (2000) is an excellent place to start researching the spatial patterns of biodiversity, and some of the theories proposed to explain these patterns. the population of the species falls below a critical level; Biodiversity. Where is biodiversity highest and lowest? Biology is the study of life. It enables the population to adapt to its environment and respond to natural selection. It … Altogether, the food, commercial forestry and ecotourism industries could lose US$ 338 billion per year if the loss of biodiversity continues at its current pace. proteins) and their […] There is a growing recognition that the level of biodiversity is an important factor in influencing the resilience of ecosystems to disturbance. At least 40 percent of the world’s economy and 80 percent of the needs of the poor are derived from biological resources. Genetic engineering involves the transfer of genes from one organism to (usually) an unrelated species. Both processes often make use of bacteria because of their ability to make complex molecules (eg. Biodiversity is a broad term for biological variety, and it can be measured at a number of organizational levels. Biodiversity refers to the variety and variability of life on Earth. It is a natural science. Read first: Gaston, K.J. The natural disaster prevention mechanisms in most ecosystems and other free services we all get from the surrounding environment are not easily replaceable or replicable, so maintaining biodiversity is important. An indicator species is a species that serves as a measure to the abiotic and biotic factors of the ecosystem. Genetic diversity. Productive use (2). Biodiversity is important to most aspects of our lives. There are three levels of biodiversity: 1. An example of a keystone species is a shark. That’s why an ecosystem that’s losing biodiversity only declines slowly at first. Biodiversity is often a topic used in A level biology to introduce ecology, providing ample opportunities to undertake practical investigations, compile results which can be analysed using species diversity index and subsequently interpreted to compare particular habitats. Importance of biodiversity to Human life natural as well as artificial ecosystems harsh environment it matter us. 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