Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
Document preview thumbnail
Preview 3 out of 28 pages
Summary

Summary IEB Matric Life Sciences: Environmental Studies

Document preview thumbnail
Preview 3 out of 28 pages

These notes cover Environmental Studies as per the IEB SAGS. Included are summarized notes on Population ecology, Predator-Prey Relationships, Competition, Ecological Succession, Social Organization and Human Population dynamics. A list of all the definitions you made be asked is also included. If there are any improvements I can make to the notes to help you, please let me know!

Content preview

, ENVIRONMENTAL STUDIES
THIS TOPIC INCLUDES:
1. Population Ecology
2. Predator-Prey Relationships
3. Competition
4. Ecological Succession
5. Social Organisation
6. Human Population Dynamics


TOPIC BREAKDOWN:

Population Ecology- studying changes in • Factors Affecting the size of a
the SIZE of a population population
• Regulation of Population Growth
• Limiting Factors
• Stable VS unstable populations
• Population Sampling Methods
(direct and indirect)
Predator Prey Relationships- studying • Role/ Significance of Predators
the relationship between prey and • How does the predator-prey
predator populations relationship work
• Examples of predator-prey
relationships (APHID-LADYBIRD,
LION-ZEBRA)
• Food Webs
Competition- two/more individuals • INTRASPECIFIC VS INTERSPECIFIC
competing for resources that are in short competition
supply • Ecological niches
 Competitive exclusion
 Competitive co-existence:
o Resource Partitioning
-How resources are
partioned in plants and
animals

Ecological Succession- the sequence of • Types of succession: Primary
organism that occupy a new habitat Succession and Secondary
(primary succession) or a disturbed Succession
habitat (secondary succession) • What determines a community
structure

, • Competitive interactions:
Predation and competition
• 3 Stages in succession
1. Pioneer Species Stage
2. Intermediate Species Stage
3. Climax Community
 Factors that determine the
endpoint to a community
Social organisation- structure of • Value of social organization
relationships within a group • Social organization techniques:
1. Herds/ Flocks as a predator
avoidance strategy (ZEBRAS)
2. Packs as a hunting strategy
(AFRICAN WILD DOGS)
3. Animals with a dominant breeding
pair (AFRICAN WILD DOGS)
4. Division of Tasks Among Castes
(TERMITES)
Human Population Dynamics- looking at • Reasons for exponential
how human populations change over population growth
time • MDCs VS LDCs
• Ecological footprint
• Future Population Dynamics
• Implications of further population
growth on environment
• Population Pyramids

Connected book
 image
Jen Grogan Life Sciences
Publisher: 2017 ISBN: 9781776113170 Edition: Unknown

Document information

Schooljaar
200
Summarized whole book?
No
Which chapters are summarized?
Environmental studies
Uploaded on
February 7, 2023
Number of pages
28
Written in
2022/2023
Type
Summary
$4.76

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
studynotesbym
4.8
(24)
Sold
76
Followers
50
Items
17
Last sold
3 months ago



Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions