Catalog Search Results
1) Ecosystems
Series
Biology essentials volume 047
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how ecosystems interact with biotic and abiotic factors. He explains and gives examples of food chains and food webs. He shows how limiting factors eventually lead to logistic growth. Real data from Yellowstone Park is used to show how populations interact. He ends the lesson by showing how human impacts can eventually lead to changes within an ecosystem.--Publisher.
2) Communities
Series
Biology essentials volume 046
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains the major classification terms in ecology and how a community can be measured by species composition and species diversity. The symbiosis of leaf cutter ants is included. The lesson ends with a discussion of population growth.--Publisher.
Series
Biology essentials volume 020
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen differentiates between biotic and abiotic factors. He explains how both abiotic and biotic factors can affect organisms at the level of the cell, the population and even the ecosystem. The complexities of biofilms, predator-prey relationships, and food webs are given as illustrative examples.--Publisher.
4) Populations
Series
Biology essentials volume 050
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how populations interact in an ecosystem. The symbiosis of several populations is based on effects that may be neutral, positive, or negative. Interactions like mutualism, commensalism, and parasitism are discussed. Human impacts to ecosystems are also considered using the invasive species kudzu.--Publisher.
Publisher
Distributed by Warner Home Video
Pub. Date
c2007
Language
English
Description
A BBC 11-part nature series. 40 camera teams were shooting at over 200 different locations all over the world for more than 5 years to get the pictures seen in the series. Each segment is followed by a sequence investigating the techniques and challenges of wildlife photography within that segment
FROM POLE TO POLE: This introduction to the BBC television series looks at the planet as a whole and considers the key factors that have shaped its natural...
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