Biodiversity increases from poles to equator from high to low latitude. Number of species increase in area with favourable environmental conditions e. In temperate regions, plants grow for shorter period due to adverse climatic conditions. For example vascular plants in tropic rain forests are per 0. It has been found to be true with other taxonomic groups like arts Fig.
On mountains, decrease in species diversity takes place from lower to higher altitude. Higher seasonal variations and fall in temperature leads to reduction in biodiversity with m increase in altitude leads to temperature drop of about 6. Natural extinction is part of the overall evolutionary process. The present wave 0.
There is an ecological crisis which has threatened the whole life support system and the large number of habitats and species, both plant and animal, have been progressively on the decline. Thus humankind is involved in what has been called specie. If genocide is a crime, specie is equally so. Charka the physician was asked by his teacher to get him a plant that was quite useless, he returned empty handed saying that there was no such plant. One cannot imagine asituation, if Penicillium had been eliminated from earth before humankind made use at it as an antibiotic or if Cinchona become extinct before quinine was discovered as a cure for malaria.
It is, therefore, in our interest to conserve our plant as also animal and micro-organism wealth. There is a growing realisation throughout the world about the urgent need to conserve the biological diversity. Genetic diversity is the amount of genetic variability among individuals of a single species as also between species.
Ecosystem diversity or Ecological diversity species richness is the number of species in a community of organisms.
The total plant wealth of the country includes not only the usually large showy flowered vascular plants, but a large number of non-flowering plants such as ferns, liverworts, algae and fungi. The endemic species and genera are largely concentrated in two principal biogeographical regions of India i. Himalyas about 42, species and Pennisulai India about 2, species. Ecosystem diversity informs the number of riches, trophic levels and ecological systems like energy flow, food webs and recycling of nutrients.
Diverse communities are more stable and productive. They can tolerate environmental stresses like prolonged dry conditions. Number of habitats and ecosystems observed in an area is also a criterion for measuring biodiversity. Some important ecosystems are savarmas, rain forests, deserts, lakes, wetlands and oceans. There is a much variety of fauna and flora in the oceans.
India has a coastline of about 6, km. The main reason for this remarkable diversity of life forms in a single country is the great diversity of ecosystems, which it has supported down the ages. Equally important are the micro-organisms like fungi and bacteria which are very important component of biosphere in as much as they are responsible for degradation of the dead biomass and release of nutrients, which are assimilable by plants and animals and enrich soil, as also form humus.
Some noteworthy features of these regions are: About 33 per cent flowering plants, 53 per cent freshwater fish, 60 per cent amphibians, 36 per cent reptiles and 10 per cent mammals found in India are endemic.
Such areas include wetlands, lakes, oceans, tree canopy and soil of tropical rain forests. There is an urgent need to arrest species extinction. Equally important is the need to prevent the loss of thousands of years of human selection in crop species and domesticated animals for posterity. Biodiversity or its physical manifestation-the biological resources are the basis of life on earth.
Ecosystem provides a variety of goods and other services- immediate as well as long term material which are vital to our well being. Countries having greater biodiversity have better potential to compete with rest of the world in global market for search of genes and species with potential uses. The value of biodiversity in terms of its commercial utility, ecological services, social and aesthetic value is enormous. All the living organisms are so closely interlinked through food chain, food webs, material cycling, energy flow, etc.
Similarly, killing of carnivores will increase the population of herbivores which will damage the vegetation and disturb the ecological balance.
Species of plants and animals keep a check on their numbers through food chains, so the wildlife helps to preserve the environment as a self-sustaining system. Thus, ecosystems often support and provide services like soil fertility, plant pollinators, predators, decomposers, purification of air and water, management of flood and drought and other environmental disasters.
Biodiversity is required for maintaining and sustainable use of goods and services from ecosystems. These services are maintenance of gaseous composition in atmosphere, pollination, formation of soil, nutrient cycling, climate control by forests and oceanic systems. Such services will otherwise cost 16 to 54 trillion 10 12 US dollars per year.
Ecosystems with more biodiversity can withstand the environmental challenges in a better way because genetically variability leads to different tolerance range for a specific environmental stress.
Due to this single stress cannot eliminate them easily; Thus species with higher genetic biodiversity have better adaptation ability towards environmental disturbances. Wildlife acts as a source of gene bank for breeding programmes in agriculture, animal husbandry, fisheries, etc. Other wild animals are used as research materials on which drugs are tested before applying to mankind. Plant breeders have produced a number of high-yielding and disease-resistant varieties from their wild relatives by genetic modifications.
So there is an urgent need to protect wildlife for breeding experiments. The wildlife acts as a source for new varieties. The protection of wild life becomes of paramount importance for their survival and propagation of race, so man is constantly in search of ways and means of preserving natural areas in their natural conditions to promote the development of wildlife e.
Similarly, wild rice Oryza nivara provided resistance against grassy stunt virus in s when virus- resistant gene was incorporated in IR rice variety; Wild Thatch Grass Saccharum sponataneum provided resistant gene to sugarcane against red rot disease; similarly in potato, resistant gene against late blight disease has been incorporated from a wild variety — Solarium demissum. Thus the production of high-yielding, disease-resistant crops, livestocks and fish cannot withstand the changes of the surrounding without their wild relatives.
Plants are also useful for making many synthetic products called botanochemicals. Twenty five per cent of drugs in pharmacy are got from only about species of plants. About seventy five per cent of anticancer drugs are derived from plants found in tropical rainforests. The medicinal benefits are not only limited to plant compounds. A host of microbial, anti-viral, cardio active and neuro-physiologic substances have been derived from poisonous marine fauna.
The venoms of various arthropods have medicinal potential. It is obtained from sources like livestock, forestry and fish. Originally plants were consumed directly from wild habitats. Gradually, most of them were grown as agriculture. More than 80, species of plants are used as food. About 4, native plant and animal species are used by villagers in Indonesia for food and medicine.
Plants provide food not only for themselves but also for other organisms including man. Just three crops i. Global fish production exceeds that of cattle, sheep, and poultry. It is the largest source of either world or domestic animal protein in the world. In fact, tourist industry of Kenya is based on its wildlife.
Due to their beauty, many birds, variously colourful butterflies, mammals, green forests etc. Aesthetic pleasure derived from biodiversity includes bird watching, pet keeping, gardening, wild life sanctuaries etc. Many plants are considered sacred and even worshipped in India e.
Ficus religiosa peepal , Ocitnum sanctum Tulsi and Prosopis cineraria Khejiri. Many animals like birds and snakes are also worshipped. The value put to aesthetic function of nature is reflected in creation of millions of small home gardens, several community gardens, botanical gardens, zoos, aquariums established in different states.
Growing up in degraded environments, could result in the development of negative attitudes in human populations. A wild species may have certain benefits which are still not known to us and may become known in future. So the conservation of even non-beneficial species is equally significant e.
Wildlife is also important in games so are hunted upon while some of them are even worshipped. A visit to the sanctuaries and national parks is a thrilling experience. Some animals are used for recreation of people in circus shows. The present wild life is the result of organic evolution which started about 3.
So it is our ethical duty to conserve the wildlife for the utilization of coming generations. There are many animal gods as well like Matsya, Narsimha and Hanuman. It is a natural but slow process but due to unplanned activities of man, the rate of decline of wild life has been particularly rapid in the last one hundred years. India alone has a total of threatened species of which include 86 mammals, 70 birds, 25 reptiles, 3 amphibians, 8 fishes, 23 invertebrates and plants.
The biological diversity of ecosystems like Wayanad, Kolli Hills, Jeypore Tract, Bhitarkanika, Lakshadweep Islands, Arunachal Pradesh and Mizoram is under threat because of conflict between food security of population living therein and biodiversity conservation. Main causes of its facing extinction are increasing destruction of its habitat, by deforestation coupled with jhum and shifting cultivation. Dams block spawning and migration of certain fishes.
Due to this species present in deeper areas start disappearing. The declaration of common Hippopotamus Hippopotamus amphibius as endangered species in Redlist is primarily due to habitat loss and its over exploitation for meat and ivory. Animals like elephants, lions, bears and large cats require bigger areas to survive and more.
Few birds can reproduce only in deep forests. Its uniqueness is further ensured by having all of the papers submitted to trusted and rigorous anti-plagiarism software prior to release. Furthermore, we ensure that you will receive your orders in time, because we always guarantee prompt delivery to all of our clients.
Should you also need any essay for emergency cases, we can provide them to you within 8 hours. We provide all of these features included in standard services for a highly reasonable fee that even allows you to have your paper revised, unlimitedly, without an extra charge. Check out our prices and reasons to buy essays from our company.
We also provide you with a secure platform to use your credit card, as we have only partnered with the leader of secure financial internet transactions. We take customer service a step further by providing you with a customer support team that will always answer to all your queries. A Biodiversity Essay Format means submitting the paper according to all standards.
Every single detail is important. Check if all the pages are numbered. Biodiversity essay font is an essential part of writing. Teachers say that Arial is the most readable font. That is why you can choose to use this one. Sometimes students are asked to write with some other font. If you received no instructions concerning this matter, do not hesitate to use Times New Roman or Areal of 12th size.
All the text should be double spaced. The writing must be printed only on white paper. It is not a good idea to leave too much space between the paragraphs. There should be standard 1 inch margins. Proofread it several times. If you have any opportunity, ask your friend or parent to help you. Turn to the help of dictionaries and textbooks to be sure that you have conveyed the ideas by means of appropriate words and sentence structure.
Do not forget to stick to word limit and be specific. Include the page with references. A biodiversity essay sample is the first thing to consider before writing the paper of your own. See how the author structures the writing and conveys his ideas. Are the sections of the paper connected with each other? Did the author manage to enclose the topic? Is there anything in the essay that can help with your own writing? Find out key sentences in each paragraph and try to create the ones for your essay.
Biodiversity essay writing examples may be easily found online. Do not waste time for thinking over the structure for your paper. Just find a good example and stick to it while writing. Ask your instructor for help. Perhaps, he will recommend you, where to search such an example of a good essay. Read attentively the opening paragraph and conclusion.
() This essay will detail the findings of a policy risk assessment on a proposed management option put forward for the protection of the Border Ranges biodiversity that is “76%. private land”.
Biodiversity means the species of life on our mother earth and the ecological processes that support the diversity of ecosystems. The goal of this research paper is to understand the importance of biodiversity and the effects of deforestation on biodiversity.
Biodiversity is a key element in the earth's biosphere- the capability of earth and its atmosphere to support life- due to the earth's dependency on the maintenance of /5(7). "Biodiversity or biological diversity is the richness in species of all living micro and macro- organism's occurring in a given habitat." The word was coined in and during the s has become very widely used in the scientific circles.
Essays On Biodiversity Hand out: Biodiversity Biological Diversity or Biodiversity - is the variety (diversity) of all life forms on earth, encompassing all plants, animals, microorganisms and the intricate ecosystems they form. - the totality of ecosystems, species, and genes within the area. Levels of Biodiversity 1. Species Diversity (Different Life Forms) 2. Forest Biodiversity Loss Essays - 1. Introduction In many communities worldwide, people depend on forests, for fuel wood-gathering, harvesting of wood and non-wood forest products, for larger-scale commercial purposes, habitat for more than half the world’s terrestrial species, clean water, and other important ecosystem services (De Groot et al., , Santangeli et al., , Chhatre and Agrawal, .