Ms. Frost  A world of biology.....
  • Welcome
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  • IB: Introduction to cells
    • Origin of Cells
    • Membrane Structure and transport
    • Cell division
    • Structure of DNA and RNA
    • DNA Replication
    • Transcription and gene expression
    • Translation
  • Molecules to Metabolism
    • Molecular diagrams
    • Water
    • Carbohydrates and Lipids
    • Proteins and Enzymes
    • Lactase / Enzyme Inhibition
    • Cellular Respiration
    • Phases of Cellular Respiration
    • Earth atmosphere / Color
    • Photosynthesis
  • Digestion and absorption
    • The kidney and osmoregulation
    • Neurons and synapses
    • Muscle and Movement
    • The blood system
    • Gas exchange
    • Defense against infectious disease
    • Antibody production and vaccination
    • Hormones, Homeostasis
    • Sexual reproduction
  • Genetic modification and biotechnology
  • Genetics and Genes
    • Chromosomes
    • Meoisis
    • Inheritance
    • MORE Inheritance
  • Evidence of evolution
    • Natural selection
    • Gene pools and speciation
    • Classification of biodiversity
    • Cladisitics
  • Ecology Species, communities and ecosystems
    • Energy Flow
    • Carbon Cycling
    • Climate change
  • Option C: Species and communities
    • Option C: Communities and ecosystems
    • Option C: Impacts of human on ecosystems
    • Option C: Conservation of biodiversity
  • Plants: Transport in the xylem of plants
    • Transport in the phloem of plants
    • Growth in plants
    • Reproduction in plants
  • Anatomy Language
    • Epithelial/Connective/Skeletal
    • Muscular / Nervous Tussue
    • Heart
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Option C: Conservation of biodiversity

Understandings:
• An indicator species is an organism used to assess a specific environmental condition - such as a fish in a river, or butterflies with radiation from nuclear fallout

• Biogeographic factors affect species diversity.

• Richness and evenness are components of biodiversity.

• Relative numbers of indicator species can be used to calculate the value of a biotic index.  
  1. Biotic Index (also called "Family Biotic Index") is a scale for showing the quality of an environment by indicating the types of organisms present in it. It is often used to assess the quality of water in rivers.
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In situ conservation

In situ conservation may require active management of nature reserves or national parks.
gorongosa timeline
tracking lions at gorongosa
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Aim 8: Scientists supported by governments are devoting relatively large amounts of effort to save particular animal species. Can criteria be established to justify a hierarchy of value of one species over another?

Ex situ conservation

Ex situ conservation is the preservation of species outside their natural habitats.

Application: Case study of the captive breeding and reintroduction of an endangered animal species.  Research the captive breeding program
of the California Condor.  How successful has its reintroduction been?

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Skill: Analysis of the biodiversity of two local communities using Simpson’s
reciprocal index of diversity.


Simpson's Diversity Index is a measure of diversity which takes into account the number of species present, as well as the relative abundance of each species. As species richness and evenness increase, so diversity increases
​

Guidance:  The formula for Simpson’s reciprocal index of diversity is:






D = diversity index, N = total number of organisms of all species found and 
n = number of individuals of a particular species.


Application: Analysis of the impact of biogeographic factors on diversity limited to island size and edge effects.
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