Marine Biology: An Ecological Approach
Appropriate for undergraduate majors and graduate students in marine biology and marine ecology, Marine Biology: An Ecological Approach emphasizes the ecological principles that govern marine life throughout all environments within the world's oceans. Its unique ecological approach adds real-world relevance by exploring how organisms interact within their individual ecosystems. The text is organized by habitat and each habitat receives detailed, in-depth coverage, giving instructors flexibility to focus on their particular areas of interest. The Fifth Edition is fully updated with the latest research data and topics, including expanded coverage of the human impact on oceans, oceanic dead zones, and coral reefs. In addition to Nybakken's engaging writing style, the text now offers enhanced pedagogy with new end-of-chapter summaries, a new four-color design to complement the art program, an art CD-ROM for instructors, and a text specific Companion Web site.
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Screening out predators resulted in high densities of colonizers. It appears that
normally heavy predation coupled with occasional escapes from predation may
explain the patchiness of the fauna. Diversity Because of the low density of
High diversity is maintained because the intense "cropping" by all levels and
sizes of animals prevents any species from building up its population to the point
where it would be competing with another for food. High diversity is due, then, ...
For example, it is now apparent from pho- gested that high diversity in the deep
sea is maintographs and observations that the deep ocean floor tained by a
combination of three factors: (1) the is not a homogeneous, featureless plain but
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H A P T E R
SOME ECOLOGICAL PRINCIPLES
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