PPT-Extinctions: The End of Biodiversity

What is extinction Extinctions occur when the last individual of a species dies out Functional Extinctions occur when individuals remain but the odds of sustainable reproduction are low ie the species is effectively extinct even though individuals remain . The complexity and rich diversity of life found in forests provides many vital services to human beings Nonetheless humans are destroying forest biodiversity at an alarming rate The conversion of forests to agricultural land overgrazing unsustainabl Marine and coastal habitats include coral reefs mangrove forests sea grass beds estuaries hydrothermal vents seamounts and soft sediments on the ocean 64258oor deep below the surface More than just a valuable source of food the ocean is one of the l Agricultural biodiversity includes ecosystems animals plants and microorganisms related to food and agriculture Today most species of crops and domesticated livestock are the result of thousands of years of human intervention such as selective breed Achievements and challenges . . Dr. Amani . Alassaf. . Environment and natural resources Economist. University of Jordan. amani.alassaf@ju.edu.jo. Reflecting Biodiversity – Holistic approaches and regional adaptation . . Kelemework. . Tafere. . Reda. , UNISA. Background. Pastoralism as a mode of production and way of life has existed in East Africa for thousands of years. There are over 200 million pastoralists across the globe, with over 180 million of them currently living in developing countries (. The struggle for life on earth. Mass Extinction - Definition. A significant proportion of species become extinct (between 30% and 95%) . The extinctions operate across a wide range of environments and . Prepared by Dakota Joiner & Lindsey bat Joseph for . Alexander College Writing and Learning Centre, April 2015.. Research source: . Krebs, Charles J. . Ecology, . 6. th. ed. Pearson. : San Francisco, 2009. Win . Maung. Chairman. Myanmar Environment Institute (MEI). To . protect . ecosystem services, biodiversity conservation is . essential. -(. supporting services. —e.g. nutrient cycling, soil formation, primary production; . The sixth . m. ass . e. xtinction. Objectives. Define . extinction.. Give examples of (1) past mass extinctions (2) and recent species . extinctions.. Compare current extinction rates with background extinction . Objectives:. Define the terms . extinction. , . extirpation. and . mass extinction. .. Contrast background extinction rates and periods of mass extinction.. Evaluate the primary causes of biodiversity loss.. By . Vaibhavi Apte. Biodiversity ???. Diversity = variety. Bio= living. Thus, variability among living organisms from all sources including inter alia, terrestrial, marine & other aquatic ecosystems and ecological complexes of which they are part of. . Introduction. Considering how biodiversity is being lost, what are some possible ways that we could protect biodiversity?. Protecting Biodiversity. Explicit Instruction. Nations pass laws and sign international treaties that protect biodiversity.. It is the variety of all the different living things and their homes on the planet. . BIO. . DIVERSITY. Bio= biological organisms . -living things!. diversity= the amount of variation. Extinction . When an organism is classed as extinct there are no living members of that species left. Extinction is a natural process where organisms that are less suited to an environment die out. Throughout the history of earth there have been several mass extinction events .