You are not currently logged in. Please create an account or log in to view the full course.

Biology   >   Ecosystems – Edexcel GCSE (1BI0): Foundation Tier

An Introduction to Ecosystems - 9.1, 9.2

 
  • About
  • Transcript
  • Cite

Ecosystems – Edexcel GCSE (1BI0): Foundation Tier

In this course, Dr Matt Ivory (Cardiff University) takes us through the topics of ecosystems covering sections 9.1-6, 9.7B & 9.8B, 9.9-9.10, 9.11B and 9.17B-9.19B in the Pearsons Edexcel GCSE Biology Specification (9-1) for Foundation Tier. We start with (i) breaking down the constituent parts of ecosystems and discuss biotic and abiotic factors; following this (ii) we introduce how some species in ecosystems are interdependent on one another; we move on to some field-work techniques and introduce both quadrats (iii) as well as belt transects (iv); then (v) we breakdown how energy is transferred through the various layers of an ecosystem; we then (vi) stress the importance of biodiversity in creating a healthy ecosystem as well as how we can help maintain said ecosystem; then we tackle the global issue of food security (vii); we introduce (viii) ways to preserve food and decomposition; and finally we finish (ix) with how to calculate rates of decay in biology material.

An Introduction to Ecosystems - 9.1, 9.2

In this first mini-lecture, we introduce ecosystems as covered in topics 9.1 and 9.2. We breakdown the constituent parts of ecosystems and define some key phrases such as community, population and habitat. We discuss what biotic and abiotic factors are and how they may impact ecosystems. Then we finish up by taking a look into the relationships some organisms have with each other in an ecosystem, such as competition or predation.

Cite this Lecture

APA style

Ivory, M. (2023, June 07). Ecosystems – Edexcel GCSE (1BI0): Foundation Tier - An Introduction to Ecosystems - 9.1, 9.2 [Video]. MASSOLIT. https://massolit.io/courses/ecosystems-4faaa111-96c2-4ada-8899-3af4618edddb/environmental-field-work-quadrats-9-5-9-6-64c1b300-a438-4981-8140-bd6e39cba3ef

MLA style

Ivory, M. "Ecosystems – Edexcel GCSE (1BI0): Foundation Tier – An Introduction to Ecosystems - 9.1, 9.2." MASSOLIT, uploaded by MASSOLIT, 07 Jun 2023, https://massolit.io/courses/ecosystems-4faaa111-96c2-4ada-8899-3af4618edddb/environmental-field-work-quadrats-9-5-9-6-64c1b300-a438-4981-8140-bd6e39cba3ef

Image Credits

Lecturer

Dr Matthew Ivory

Dr Matthew Ivory

Cardiff University