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What Makes Nature Work: Cool Examples and the Sun's Role

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What Makes Nature Work: Cool Examples and the Sun's Role

Ecosystems are complex networks influenced by both biotic and abiotic factors. These factors work together to shape the survival and distribution of species, from the impact of predation on prey populations to the effect of light intensity on photosynthesis rate.

  • Biotic factors include food availability, predator-prey relationships, and pathogen presence
  • Abiotic factors encompass physical conditions like temperature, water availability, and light intensity
  • Changes in either type of factor can create cascading effects throughout the ecosystem
  • Environmental adaptations and species interactions determine community structure
  • Both living and non-living components play crucial roles in maintaining ecological balance

17/03/2023

414

BIOTIC & ABIOTIC FACTORS
I living parts of the environment (non-living parts.
BIOTIC
→ Availability of food
→ New predators
→ New pathogens.

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Ecological Interactions and Environmental Impacts

This section delves into specific examples of how both biotic and abiotic factors influence ecosystem dynamics. The introduction of new predators can dramatically alter existing population structures, while environmental conditions like light intensity affect the foundation of food chains through photosynthesis.

Vocabulary: Pathogens are disease-causing organisms that can significantly impact population sizes.

Example: When light intensity decreases, plant photosynthesis rates decline, potentially reducing food availability for herbivores.

Highlight: Competition between species can lead to extinction if population numbers fall below sustainable breeding levels.

BIOTIC & ABIOTIC FACTORS
I living parts of the environment (non-living parts.
BIOTIC
→ Availability of food
→ New predators
→ New pathogens.

View

Environmental Conditions and Species Survival

The final section examines how specific abiotic factors influence ecosystem function and species survival. Soil conditions, atmospheric composition, and physical factors like wind all play crucial roles in determining species distribution and success.

Definition: pH refers to the acidity or alkalinity of soil, which directly affects plant growth capability.

Example: Dissolved oxygen levels in water bodies can decrease on hot days, potentially threatening aquatic life.

Highlight: Carbon dioxide levels directly impact photosynthesis rates, while oxygen availability affects all aerobic organisms' survival.

BIOTIC & ABIOTIC FACTORS
I living parts of the environment (non-living parts.
BIOTIC
→ Availability of food
→ New predators
→ New pathogens.

View

Biotic and Abiotic Factors Overview

This section explores the fundamental distinction between living and non-living environmental components that influence ecosystems. The factors are categorized into biotic (living) and abiotic (non-living) elements that shape ecological communities.

Definition: Biotic factors are living components of an ecosystem, including food availability, predators, and pathogens.

Definition: Abiotic factors are non-living environmental conditions such as light, temperature, water, and soil chemistry.

Example: Food availability as a biotic factor directly impacts population sizes - when food becomes scarce, community numbers decline accordingly.

Highlight: The relationship between food availability and population size demonstrates how biotic factors create direct cause-and-effect relationships in ecosystems.

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Knowunity is the #1 education app in five European countries

Knowunity has been named a featured story on Apple and has regularly topped the app store charts in the education category in Germany, Italy, Poland, Switzerland, and the United Kingdom. Join Knowunity today and help millions of students around the world.

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Knowunity is the #1 education app in five European countries

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What Makes Nature Work: Cool Examples and the Sun's Role

Ecosystems are complex networks influenced by both biotic and abiotic factors. These factors work together to shape the survival and distribution of species, from the impact of predation on prey populations to the effect of light intensity on photosynthesis rate.

  • Biotic factors include food availability, predator-prey relationships, and pathogen presence
  • Abiotic factors encompass physical conditions like temperature, water availability, and light intensity
  • Changes in either type of factor can create cascading effects throughout the ecosystem
  • Environmental adaptations and species interactions determine community structure
  • Both living and non-living components play crucial roles in maintaining ecological balance

17/03/2023

414

 

10/11

 

Biology

12

BIOTIC & ABIOTIC FACTORS
I living parts of the environment (non-living parts.
BIOTIC
→ Availability of food
→ New predators
→ New pathogens.

Ecological Interactions and Environmental Impacts

This section delves into specific examples of how both biotic and abiotic factors influence ecosystem dynamics. The introduction of new predators can dramatically alter existing population structures, while environmental conditions like light intensity affect the foundation of food chains through photosynthesis.

Vocabulary: Pathogens are disease-causing organisms that can significantly impact population sizes.

Example: When light intensity decreases, plant photosynthesis rates decline, potentially reducing food availability for herbivores.

Highlight: Competition between species can lead to extinction if population numbers fall below sustainable breeding levels.

BIOTIC & ABIOTIC FACTORS
I living parts of the environment (non-living parts.
BIOTIC
→ Availability of food
→ New predators
→ New pathogens.

Environmental Conditions and Species Survival

The final section examines how specific abiotic factors influence ecosystem function and species survival. Soil conditions, atmospheric composition, and physical factors like wind all play crucial roles in determining species distribution and success.

Definition: pH refers to the acidity or alkalinity of soil, which directly affects plant growth capability.

Example: Dissolved oxygen levels in water bodies can decrease on hot days, potentially threatening aquatic life.

Highlight: Carbon dioxide levels directly impact photosynthesis rates, while oxygen availability affects all aerobic organisms' survival.

BIOTIC & ABIOTIC FACTORS
I living parts of the environment (non-living parts.
BIOTIC
→ Availability of food
→ New predators
→ New pathogens.

Biotic and Abiotic Factors Overview

This section explores the fundamental distinction between living and non-living environmental components that influence ecosystems. The factors are categorized into biotic (living) and abiotic (non-living) elements that shape ecological communities.

Definition: Biotic factors are living components of an ecosystem, including food availability, predators, and pathogens.

Definition: Abiotic factors are non-living environmental conditions such as light, temperature, water, and soil chemistry.

Example: Food availability as a biotic factor directly impacts population sizes - when food becomes scarce, community numbers decline accordingly.

Highlight: The relationship between food availability and population size demonstrates how biotic factors create direct cause-and-effect relationships in ecosystems.

Can't find what you're looking for? Explore other subjects.

Knowunity is the #1 education app in five European countries

Knowunity has been named a featured story on Apple and has regularly topped the app store charts in the education category in Germany, Italy, Poland, Switzerland, and the United Kingdom. Join Knowunity today and help millions of students around the world.

Ranked #1 Education App

Download in

Google Play

Download in

App Store

Knowunity is the #1 education app in five European countries

4.9+

Average app rating

15 M

Pupils love Knowunity

#1

In education app charts in 12 countries

950 K+

Students have uploaded notes

Still not convinced? See what other students are saying...

iOS User

I love this app so much, I also use it daily. I recommend Knowunity to everyone!!! I went from a D to an A with it :D

Philip, iOS User

The app is very simple and well designed. So far I have always found everything I was looking for :D

Lena, iOS user

I love this app ❤️ I actually use it every time I study.