Research Program On The Sea Otter Enhydra Lutris And Its Environment
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Author | : |
Publisher | : |
Total Pages | : 56 |
Release | : 1980 |
Genre | : Sea otter |
ISBN | : |
Download Research Program on the Sea Otter (Enhydra Lutris) and Its Environment Book in PDF, Epub and Kindle
Author | : Marianne Riedman |
Publisher | : |
Total Pages | : 136 |
Release | : 1991 |
Genre | : Enhydra |
ISBN | : |
Download The Sea Otter (Enhydra Lutris) Book in PDF, Epub and Kindle
Author | : Leah Darshan Honka |
Publisher | : |
Total Pages | : 44 |
Release | : 2014 |
Genre | : |
ISBN | : |
Download Quantifying the Drivers and Mechanisms of Sea Otter (Enhydra Lutris) Foraging Behaviour on the Central Coast of British Columbia, Canada Book in PDF, Epub and Kindle
As preferred prey become scarce, theory suggests that predator per-capita consumption rates decline and predator diets diversify. As a keystone predator, sea otters (Enhydra lutris) are known to have remarkable impacts on their macroinvertebrate prey, however, variation in the magnitude of these effects through time remain less well known. Using a space-for-time substitution, we quantified sea otter foraging behaviour at 5 rocky reef sites that fell along a gradient in otter occupation time (0.1-33 years) on British Columbia, Canada's central coast. As site occupation time increased, sea otters targeted increasingly smaller, more diverse macroinvertebrate prey suggesting the serial depletion of preferred to less valuable prey. We found strong evidence that urchin density and occupation time were important drivers of sea otter per-capita consumption rates on urchins, strongly interacting rocky reef herbivores, well known to drive the distribution and abundance of kelps. In addition, there was greater strength of evidence for prey-dependent over predator-dependent functional response models of sea otter consumption of urchins. These results have implications for nearshore productivity, commercial and subsistence shellfish fisheries and balancing the trade-offs inherent to ecosystem-based management.
Author | : Charles D. Woodhouse |
Publisher | : |
Total Pages | : 86 |
Release | : 1977 |
Genre | : Sea otter |
ISBN | : |
Download A Summary of Knowledge of the Sea Otter Enhydra Lutris, L., in California and an Appraisal of the Completeness of Biological Understanding of the Species Book in PDF, Epub and Kindle
Author | : Marianne Riedman |
Publisher | : |
Total Pages | : 136 |
Release | : 1990 |
Genre | : Enhydra |
ISBN | : |
Download The Sea Otter (Enhydra Lutris) Book in PDF, Epub and Kindle
A current review of the biology, ecology, and behavior of the sea otter (Enhydra lutris). Emphasis is placed on the populations and habitat in central California but results of studies in Alaska, Canada, and the Soviet Union are also covered. Management and conservation problems such as conflicts with shellfisheries and concerns about oil pollution are also touched on.
Author | : Douglas P. DeMaster |
Publisher | : |
Total Pages | : 192 |
Release | : 2002 |
Genre | : |
ISBN | : |
Download Final Revised Recovery Plan for the Southern Sea Otter (Enhydra Lutris Nereis) Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 182 |
Release | : 1987 |
Genre | : Animal introduction |
ISBN | : |
Download Final Environmental Impact Statement for Translocation of Southern Sea Otters: Technical support documents Book in PDF, Epub and Kindle
Author | : Sea Otter Recovery Team |
Publisher | : |
Total Pages | : 68 |
Release | : 2007 |
Genre | : Sea otter |
ISBN | : 9780662475279 |
Download Recovery Strategy for the Sea Otter (Enhydra Lutris) in Canada Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 240 |
Release | : 1991 |
Genre | : Breakwaters |
ISBN | : |
Download Morro Bay Harbor: Main report, environmental assessment Book in PDF, Epub and Kindle
Author | : Joseph R. Geraci |
Publisher | : National Aquarium in Baltimore |
Total Pages | : 386 |
Release | : 2005 |
Genre | : Marine mammals |
ISBN | : 0977460908 |
Download Marine Mammals Ashore Book in PDF, Epub and Kindle
Comprehensive manual for understanding and carrying out marine mammal rescue activities for stranded seals, manatees, dolphins, whales, or sea otters.