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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As a result, the algae form a substrate that prevents the limpets from attaching, so
they cannot enter the area and graze. Obviously, in this kind of situation there is a
continuum. At some level, there is a balance point defining one area where ...
We can conclude this section on grazing by looking briefly at the geographical
variation in grazing and its effects on various kinds of communities. Beginning
with the temperate zone, grazing is one of the main structuring agents of the
Indeed, Hay (1991) has noted that not only are there more herbivorous fishes on
coral reefs than in any other marine habitat, but their grazing rates on certain
portions of the coral reef exceed the rates of grazing for any other habitat,
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H A P T E R
SOME ECOLOGICAL PRINCIPLES
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