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INDIVIDUAL ADAPTATION TO ENVIRONMENT Mariana Chavarriaga V 8a.

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Presentation on theme: "INDIVIDUAL ADAPTATION TO ENVIRONMENT Mariana Chavarriaga V 8a."— Presentation transcript:

1 INDIVIDUAL ADAPTATION TO ENVIRONMENT Mariana Chavarriaga V 8a

2 INDIVIDUAL ADAPTATION TO ENVIRONMENT Factors that affect future population population mortality emigration natality immigration

3 INDIVIDUAL ADAPTATION TO ENVIRONMENT Key future of populations:  Dispersion: Describes their spacing relative to each other. Ex: Clumped, Even or uniform, Ramdon.

4 INDIVIDUAL ADAPTATION TO ENVIRONMENT  Limiting factor: Any biotic or abiotic factor that restricts the existance of organisms in a specific environment. Ex: A mount of water, Temperature.  Carrying capacity: The maximum population size that be supported by avaible resources.

5 INDIVIDUAL ADAPTATION TO ENVIRONMENT An adaptation, also called an adaptive trait, in biology is a trait with a current functional role in the life history of an organism that is maintained and evolved by means of natural selection.

6 INDIVIDUAL ADAPTATION TO ENVIRONMENT Adaptation refers to both the current state of being adapted and to the dynamic evolutionary process that leads to the adaptation. Adaptations contribute to the fitness and survival of individuals.

7 INDIVIDUAL ADAPTATION TO ENVIRONMENT Organisms face a succession of environmental challenges as they grow and develop and are equipped with an adaptive plasticity as the phenotype of traits develop in response to the imposed conditions.

8 INDIVIDUAL ADAPTATION TO ENVIRONMENT The developmental norm of reaction for any given trait is essential to the correction of adaptation as it affords a kind of biological insurance or resilience to varying environments.

9 INDIVIDUAL ADAPTATION TO ENVIRONMENT Adaptation is, first of all, a process, rather than a physical part of a body. An internal parasite can illustrate the distinction: such a parasite may have a very simple bodily structure, but nevertheless the organism is highly adapted to its specific environment.

10 INDIVIDUAL ADAPTATION TO ENVIRONMENT From this we see that adaptation is not just a matter of visible traits: in such parasites critical adaptations take place in the lifecycle, which is often quite complex.

11 INDIVIDUAL ADAPTATION TO ENVIRONMENT For the environment

12 INDIVIDUAL ADAPTATION TO ENVIRONMENT


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