2 Ebooks oleh Glenn R. VanBlaricom
James A. Estes & Glenn R. VanBlaricom: Community Ecology of Sea Otters
The impetus for this volume comes from two sources. The first is scientific: by virtue of a preference for certain large benthic invertebrates as food, sea otters have interesting and significant eff …
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€114.12
James L. Bodkin & Shawn Larson: Sea Otter Conservation
Sea otters are good indicators of ocean health. In addition, they are a keystone species, offering a stabilizing effect on ecosystem, controlling sea urchin populations that would otherwise inflict d …
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€63.02