Marine mammals: Historical Exploitation Patterns
Marine mammals: Historical Exploitation Patterns.

1. Spatial diffusion: same species or new species supplying same demands using existing technology.

2. More effective and efficient technology permitting continued exploitation of declining resource stocks.

3. Capture of species previously not available before adoption of new technology.

4. Appropriate to pre-20th century exploitation. Although the model does not incorporate resource management and conservation regulations which have influenced post-1920 practices, similar patterns have characterized modern hunting practices.

Reproduced by permission of C. W. Sanger © 1998. Adapted by Duleepa Wijayawardhana, 1998.
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