Biodiversity or biological diversity is the scientific term used to define the variation of life on earth. This consists of the diverse flora, fauna, microorganisms, their entire genetic makeup and the ecosystems that they form. Biodiversity plays a major role in the world, as it is essential for the survival and growth of all forms of life. To better understand Biodiversity it is split in to three levels: Genetic, Species and Ecosystem diversity.
genetic diversity refers to how an individual differentiates from another from the same species. Whether they are common differences or similarities, Genetic traits help define each individual and make them unique amongst the population of their species. What determines these differences are Genes, which in turn makes up your DNA. Examples of this diversity are shown clearly in the human species as their traits can vary greatly. Attributes such as hair, finger and toe lengths and also the colour of one’s eyes are the signs of physical genetic traits. The importance of Genetic Diversity can be summed into one word. Survival. Having a diverse genetic structure allows species to adapt to their ever-changing ecosystems.
Species Diversity refers to the variety of different species. It can be measured in numerous ways and these measurements are divided into three groups. They are species richness, species abundance and taxonomic or phylogenetic diversity. Species richness is used to count the number of species within an environment. Species abundance refers to how common or rare a species is compared to other species within its environment. The last measurement approach, taxonomic diversity, analysises the genetic relationships between different groups of species.
The Term Paper on Ecosystems and Biodiversity
Present paper seeks to provide the comprehensive analysis of ecosystems and biodiversity structure and value for the humanity. The thesis is defended that the balance of ecosystems and maintaining biodiversity are central prerequisites for avoiding the future crisis of biosphere of the Earth. The industrial activities of people negatively affect the mentioned balance and result in deterioration of ...
Ecosystem Diversity takes a large step from genetic diversity as it talks about entire ecosystems. This level is used to identify the multitudes of various plants and animal species that coexist in an ecosystem and also they way in which those species interact with one another and how they adapt with their physical environment. The diversity of ecosystems varies greatly. To help identify each ecosystem they are given habitat classifications. These classifications generally include a combination of habitat type description and a climatic descriptor for example: tropical moist forest, or temperate grassland.
Biodiversity plays a humongous role in the world of tody. It basically provides the world with life’s necessities like food, water, oxygen, medicine and so much more. Because of this humanity has become dependant on the habitats that it has derived its many recourses from over he past millennium. Recently due to the modern growth of the civilization of humans, many rare and important ecosystems are becoming threatened of being damaged or completely destroyed. Modern day issues like pollution; global warming and industry contribute to the breaking down of delicate ecosystems. Unfortunately effects such as these are beginning to take action on Australian ecosystems.
Australians biodiversity is very unique, being one of the most rich in species countries in the world. It is home to somewhere between 600,000 and 700,000 and 10% of the world’s population of flora and fauna, many of which can only be found in Australia. Extensive studies show about 84 per cent of plants, 83 per cent of mammals, and 45 per cent of birds are found exclusively in Australia. Over the past 200 years human activity has caused great damage towards these very unique flora and fauna species and put them at risk of extinction. The
The Essay on Lab On Species Diversity
AIM: To determine how moisture content of sand influences the distribution of fauna along a sandy beach. MATERIALS: 100m transect,1m x 1m quadrat,shovel,30cm ruler,40cm x40cm sieve, digital probe, sweep net PROCEDURE: 1.The area was selected for the 100m transect to be laid. 2.The transect was carefully placed ensuring that the end of the transect was in the moist part of sand. 3.The quadrat was ...