Ecology: Checks and Balances

Duration: 14

Year Published: 1970

Format: 16mm

Color: Color

Description: Presents the complete life cycles and interrelationships of the ladybird beetle and the aphid. Views their feeding habits emphasizing that the only food of the beetle in both the larval and adult stage is the aphid. Describes the mutual control exerted over the number of organisms present, showing that the two species form a miniature ecosystem.

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Indiana University Library Moving Image Archive

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