Learn the key concepts in ecology and what makes populations change over time, with Professor Lindsay Turnbull from the University of Oxford Ecology is the study of plants and animals in their environments but what kinds of questions do ecologists try to answer? We begin with a population - a group of organisms belonging to the same species that live in one place. Some populations are stable, while others boom and bust, and we find out why births and deaths are key to understanding stability. We then consider why there are so many species on Earth and in doing so discover the ecological niche that constrains organisms to a specific role. Finally, we take a quick look at humans, who have broken out of their niche and taken control of the planet.
Erratum - Mammal biomass on Earth
The figures given in the video are incorrect. The actual figures are: 34% humans, 62% livestock and 4% wild mammals.
https://ourworldindata.org/wild-mammals-birds-biomass
Timestamps:
00:00 Intro
00:20 Titles
00:29 Key ecological questions
01:18 The state of populations: births and deaths
02:58 The rabbit versus the albatross
04:32 Keystone species: the case of the sea otter
06:20 Competition: the ecological niche
08:23 Humans – the ultimate competitor?
11:26 Outro
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Learn the key concepts in ecology and what makes populations change over time, with Professor Lindsay Turnbull from the University of Oxford Ecology is the study of plants and animals in their environments but what kinds of questions do ecologists try to answer? We begin with a population - a group of organisms belonging to the same species that live in one place. Some populations are stable, while others boom and bust, and we find out why births and deaths are key to understanding stability. We then consider why there are so many species on Earth and in doing so discover the ecological niche that constrains organisms to a specific role. Finally, we take a quick look at humans, who have broken out of their niche and taken control of the planet.
Erratum - Mammal biomass on Earth
The figures given in the video are incorrect. The actual figures are: 34% humans, 62% livestock and 4% wild mammals.
https://ourworldindata.org/wild-mammals-birds-biomass
Timestamps:
00:00 Intro
00:20 Titles
00:29 Key ecological questions
01:18 The state of populations: births and deaths
02:58 The rabbit versus the albatross
04:32 Keystone species: the case of the sea otter
06:20 Competition: the ecological niche
08:23 Humans – the ultimate competitor?
11:26 Outro
Learn how cells use the information in DNA and the key components that make up a cell, with Professor Lindsay Turnbull from the University of Oxford All cells share a core set of features that allow them to process information, which is the best way to start studying cells. Join Professor Lindsay Turnbull from the University of Oxford, as she explains these core features using unique illustrations and simple, engaging language.
Learn the fundamentals of every cell on Earth, including key cell components and their functions. Explore the different molecules of life from DNA to proteins and find out how errors in the genetic code lead to genetic disorders and lay the groundwork for evolution.
Timestamps:
00:00 Intro
00:13 Titles
00:18 Why do cells need information?
01:05 Diagram of information flow
02:32 Cell components in detail
04:52 Protein formation and properties
07:09 Mutation and genetic disorders
09:24 Evolution
10:24 Outro
Biology: The Whole Story
Learn the key concepts in ecology and what makes populations change over time, with Professor Lindsay Turnbull from the University of Oxford Ecology is the study of plants and animals in their environments but what kinds of questions do ecologists try to answer? We begin with a population - a group of organisms belonging to the same species that live in one place. Some populations are stable, while others boom and bust, and we find out why births and deaths are key to understanding stability. We then consider why there are so many species on Earth and in doing so discover the ecological niche that constrains organisms to a specific role. Finally, we take a quick look at humans, who have broken out of their niche and taken control of the planet.
Erratum - Mammal biomass on Earth
The figures given in the video are incorrect. The actual figures are: 34% humans, 62% livestock and 4% wild mammals.
https://ourworldindata.org/wild-mammals-birds-biomass
Timestamps:
00:00 Intro
00:20 Titles
00:29 Key ecological questions
01:18 The state of populations: births and deaths
02:58 The rabbit versus the albatross
04:32 Keystone species: the case of the sea otter
06:20 Competition: the ecological niche
08:23 Humans – the ultimate competitor?
11:26 Outro
