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What is biodiversity?
Refers to the numbers, variety and variability of living organisms and ecosystems.
Which of the following factors does NOT determine the degree of biodiversity?
Which types of biodiversity are mentioned?
What is one importance of biodiversity mentioned?
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The causes of biodiversity losses include habitat loss and degradation, pollution, and ___ .
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Match the following strategies to preserve biodiversity:
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The Endangered Species Act protects 2000 species in danger of extinction in the US.
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Which is a method of measuring biodiversity?
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What does evenness refer to in the context of biodiversity?
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Study Notes
What is Biodiversity?
- Refers to the number, variety, and variability of living organisms and ecosystems
- Encompasses all terrestrial, marine, and aquatic organisms
- Covers diversity within space, between species, and variations among ecosystems
Factors Determining Biodiversity
- Habitat stress
- Geographical isolation
- Dominance by one species
- Availability of ecological niches
- Edge effect
- Geological history
Types of Biodiversity
- Genetic Diversity: Variation in genes within a species
- Species Diversity: Variety of species within a region
- Ecosystem/Ecological Diversity: Variety of ecosystems within a region
Importance of Biodiversity
- Economic: Provides essential resources for human civilization
- Ecological Life Support: Supports essential ecosystem functions
- Recreation and Aesthetic Importance: Enhances quality of life
- Source of Food: Crucial for global food security
- Scientific: Opportunities for scientific research and development
Role of Biodiversity
- Ecological Role: Supports healthy ecosystems and their processes
- Economic Role: Provides food, goods, and opportunities for recreation
- Scientific Role: Offers genetic resources for research and solutions
Causes of Biodiversity Loss
- Habitat Loss and Degradation: Destruction of natural habitats
- Habitat Fragmentation: Dividing habitats into smaller, isolated areas
- Pollution, Overfishing, and Overhunting: Human activities that deplete resources
- Climate Change: Altering climate patterns, leading to habitat shifts
- Introduction of Invasive Species: Non-native species disrupting native ecosystems
Challenges for Ensuring Biodiversity
- Diversity: The vastness and complexity of biodiversity
- Population Growth and Increasing Demands: Growing human population placing increasing pressure on resources
- Climate Change: Rapidly changing climate patterns posing threats to ecosystems
Strategies to Preserve Biodiversity
- Habitat Conservation: Protecting and managing natural habitats
- Captive Breeding and Seed Banks: Preserving species outside their natural habitats
- Government Legislation: Laws and regulations for biodiversity protection
- Avoid Invasive Species: Preventing the spread and impact of invasive species
- Education: Raising awareness and promoting biodiversity conservation
Global Biodiversity
- Endangered Species Act: Protects over 2000 species in the US
- Wilderness Areas: Designated areas for conservation
- International Cooperation: Organizations working together for global biodiversity preservation
- UNESCO World Heritage Sites: Recognizes areas of global importance
- Marine Protected Areas: Protecting marine life and ecosystems
Measurement of Biodiversity
- Species Richness: Number of species in a given area
- Genetic Diversity: Variation in genes within species
- Endemic Species: Species found only in a specific location
- Ecosystem Diversity: Variety of ecosystems within a region
Measurement of Biodiversity - Species Richness
- Alpha Richness or Diversity: Species richness in a particular habitat
- Beta Richness or Diversity: Difference in species composition between habitats
- Gamma Richness: Overall species richness in a region
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Description
This quiz explores the fundamental concepts of biodiversity, including its definition, types, and factors that affect its variations. Delve into the significance of biodiversity for ecological balance, economic benefits, and recreational value. Test your understanding of how biodiversity interacts with ecosystems and human life.
