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Defining Biodiversity What is the nature and value of biodiversity?

Defining Biodiversity What is the nature and value of biodiversity?. Learning Objectives – To name the factors that influence biodiversity To be able to classify these factors into groups To consider which have greater impact upon biodiversity. P100 Oxford. Biodiversity.

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Defining Biodiversity What is the nature and value of biodiversity?

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  1. Defining Biodiversity What is the nature and value of biodiversity? • Learning Objectives – • To name the factors that influence biodiversity • To be able to classify these factors into groups • To consider which have greater impact upon biodiversity

  2. P100 Oxford Biodiversity Biodiversity: Is it evenly distributed? • Answer this question and add 5 facts that evidence your thinking!! • Why are biomes named after plants and not animals?

  3. Your starter for 10 • List 10 keywords from last lesson ie the ones you were asked to learn • Let’s see how well you do in today’s lotto draw ….

  4. Are you a biodiversity ‘millionaire’? • ABIOTIC • PRODUCER • ENERGY FLOW • KEYSTONE SPECIES • CONSUMER • TROPHIC LEVEL • How many of these can you define?Work with your partner!

  5. What factors influence (the distribution of) biodiversity? ?? ?? ?? ?? Biodiversity ?? ?? ??

  6. What factors influence (the distribution of) biodiversity? • Add to your mind-map as necessary • Can we colour code them into groups? • Which of these are the most important/determining factors?

  7. This is the main or ‘limiting factor’ as it determines the limits within which species exist Big impact if focus on one species The bigger the area the more space for species The bigger the population, the more in competition we are for space & resources Often monoculture

  8. Cosmopolitan Distribution is the ecological state of being found almost anywhere around the world. Endemism is the ecological state of being unique to a particular location, such as a specific island, habitat type or nation. To be endemic to a place or area means that it is found only in that part of the world and nowhere else. For example, many species of lemur are endemic to the island of Madagascar. Over to you….. Add the words endemic and cosmopolitan to your glossary then List 10 species of each type Endemism vs. Cosmopolitan Distribution

  9. Biodiversity P101 Oxford Is there a correlation between distance from the Equator and productivity (NPP)? Make links to prior learning

  10. Climate extreme places eg ? have lower biodiversity & productivity due to limiting factors eg ??? Biodiversity Lower latitudes eg nr Equator warmer, more humid; Ideal conditions for breakdown of decaying matter (nutrient cycling)

  11. FACTORS AFFECTING BIODIVERSITY - Answers Altitudinal Range Habitat Destruction Succession Habitat Architecture History and Age Effective Conservation and Restoration Size of an Area Disturbance Productivity Habitat Heterogeneity Interaction between species Isolation Hetero = different Homo = same Dispersal and Colonisation

  12. Now sort the factors into categories: GLOBAL and CONTINENTAL FACTORS REGIONAL FACTORS LOCAL FACTORS HUMAN FACTORS

  13. Learning Review • Can I….. name the factors that influence biodiversity? classify these factors into groups? state which have greater impact upon biodiversity?

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