Biology SL
Biology SL
4
Chapters
553
Notes
Theme A - Unity & Diversity
Theme A - Unity & Diversity
Theme B - Form & Function
Theme B - Form & Function
Theme C - Interaction &  Interdependence
Theme C - Interaction & Interdependence
Theme D - Continuity & Change
Theme D - Continuity & Change
IB Resources
Theme C - Interaction &  Interdependence
Biology SL
Biology SL

Theme C - Interaction & Interdependence

Unlock Secrets of Interspecific Competition!

Word Count Emoji
463 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 14th Jun 2024

Table of content

Interspecific Competition 🌼

  • What is it?

    • Competition between different species.
    • E.g. Lions 🦁 and hyenas 🦓 both compete for the same prey in the savanna.
  • Testing Interspecific Competition

    • Observe where multiple species grow in habitats.
    • Check if certain species avoid growing with others (maybe they don't like each other? 🤔).

Hypotheses 🔍

  • H0 (Null Hypothesis): The two species are like "meh", they don’t mind each other, so they're distributed without caring about the other.
  • H1 (Alternative Hypothesis): The two species either love ❤️ or hate 🖤 each other, so their distribution is affected.

The Chi-squared Test 📊

  • A mathematical test used to understand species distribution.

  • Important

    • Only works if expected occurrences (frequencies) are 5 or more.
    • The test needs random samples! Imagine choosing your candy from a mix without looking. 🍬
  • But, Wait!

    • A significant chi-squared test doesn't shout "Competition!".
    • Maybe the species
      • Prefer different room designs 🛋️ (different habitat requirements).
      • Just love being neighbors 🏘️ (same habitat requirements but no resource competition).
      • Have a relationship (maybe they do gardening together 🌱) that encourages being close.

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IB Resources
Theme C - Interaction &  Interdependence
Biology SL
Biology SL

Theme C - Interaction & Interdependence

Unlock Secrets of Interspecific Competition!

Word Count Emoji
463 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 14th Jun 2024

Table of content

Interspecific Competition 🌼

  • What is it?

    • Competition between different species.
    • E.g. Lions 🦁 and hyenas 🦓 both compete for the same prey in the savanna.
  • Testing Interspecific Competition

    • Observe where multiple species grow in habitats.
    • Check if certain species avoid growing with others (maybe they don't like each other? 🤔).

Hypotheses 🔍

  • H0 (Null Hypothesis): The two species are like "meh", they don’t mind each other, so they're distributed without caring about the other.
  • H1 (Alternative Hypothesis): The two species either love ❤️ or hate 🖤 each other, so their distribution is affected.

The Chi-squared Test 📊

  • A mathematical test used to understand species distribution.

  • Important

    • Only works if expected occurrences (frequencies) are 5 or more.
    • The test needs random samples! Imagine choosing your candy from a mix without looking. 🍬
  • But, Wait!

    • A significant chi-squared test doesn't shout "Competition!".
    • Maybe the species
      • Prefer different room designs 🛋️ (different habitat requirements).
      • Just love being neighbors 🏘️ (same habitat requirements but no resource competition).
      • Have a relationship (maybe they do gardening together 🌱) that encourages being close.

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Biology SL. Subscribe now and get closer to that 45 🌟