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Printable Handouts
Navigable Slide Index
- Introduction
- What about size of an individual?
- The heaviest creature: A giant Sequoia tree (1 million kilograms)
- The smallest mammal: The pygmy shrew
- To carry heavy weights - be big
- To do chemistry - be very small
- Where did all the oxygen in Earth's atmosphere come from?
- Fossil ancient bacteria (1)
- Stromatolites form large structures with mineral deposits
- What’s the best size for people?
- Fossil ancient bacteria (2)
- Biological evolution: Making new species
- Charles Darwin
- Mutations
- Natural selection
- Migration, geographic isolation and genetic drift
- Adaptive radiation among honeycreepers in Hawaii
- Summary of biological evolution
- What is life? How does life differ from all else in the universe?
- Energy is the key to life
- Restaurant menu showing calories per drink
- 2nd law of thermodynamics
- An impossible ecosystem
- Another example of an ecosystem
- Our sun, the source of energy on Earth
- Order is key to life
- The meaning of it all
- Thanks
Topics Covered
- Adaptation
- Stromatolite
- Biological Evolution
- Mutation
- Natural Selection
- Migration, geographic isolation, and genetic drift
- Thermodynamics
- Ecosystem
- Meaning of Life
Talk Citation
Botkin, D.B. (2021, April 28). How to win at the ecology game 2 [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved November 2, 2024, from https://doi.org/10.69645/JSFH3361.Export Citation (RIS)
Publication History
Financial Disclosures
- There are no commercial/financial matters to disclose.
How to win at the ecology game 2
Published on April 28, 2021
38 min
A selection of talks on Plant & Animal Sciences
Transcript
Please wait while the transcript is being prepared...
0:00
This is a continuation of the introduction to ecology 2,
how to win the ecology game.
This talk was divided into two parts.
The first part, I just finished,
and now I'm going to begin with the second part.
Again, I'm Daniel Botkin,
Professor of Biology Emeritus,
University of California, Santa Barbara.
This is the second part of the two-part talk.
Thank you. What is better,
0:36
being very small or very large?
This next slide shows various small species and bacteria,
which is photosynthetic and a set of elephants.
Life comes in many sizes.
The smallest creatures are bacteria.
The smallest of these are about one-millionth of
a meter long and half that wide and
weighed less than a billionth of a billionth of a kilogram.
In this slide, next to them are a group of elephants,
which are very large.
1:16
The heaviest land organism is probably the
largest of the giant sequoia trees of California,
known as the Del Norte Titan sequoia.
It stands 94 meters high and is
more than seven meters in diameter and weighs more than one million kilograms.
So the range of sizes of living things is huge.
In terms of weight,
the range is from a billionth of a billionth of a kilogram to one million kilograms.