Ecological Monographs, 81(2), 2011, pp. 215–239 2011 by the Ecological Society of America See complete pdf file:Watson&Estes 2011 Abstract. We used the extirpation, reintroduction, and spread of sea otters (Enhydra lutris) along the west coast of Vancouver Island, Canada, to evaluate how the otter–urchin– algae trophic cascade creates variation in rocky reef community structure
by Rhonda Reidy B.Sc., University of Victoria, 2000 RESEARCH PROJECT SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF RESOURCE MANAGEMENT (PLANNING) In the School of Resource and Environmental Management Report No. 513 © Rhonda Reidy 2011 SIMON FRASER UNIVERSITY Summer 2011 See the Full PDF:seaottergeoduckRReidy Accessed Feb 20, 2014 at:
ABSTRACT We estimated carrying capacity for sea otters (Enhydra lutris) in the coastal waters of British Columbia, Canada, by characterizing habitat according to the complexity of nearshore intertidal and sub-tidal contours. We modeled the total area of complex habitat on the west coast of Vancouver Island by first calculating the complexity of the Checleset Bay–Kyuquot
Reason for designation: The species had been extirpated in British Columbia by the fur trade by the early 1900s, and was re-introduced from 1969-72. It has since repopulated 25-33% of its historic range in British Columbia, but is not yet clearly secure. Numbers are small (<3,500) and require careful monitoring. Their susceptibility to oil and
An assessment of abundance and growth of the sea otter population (Enhydra lutris) in British Columbia By Nichol, L.M., J.C. Watson, G.M. Ellis, J.K.B. Ford Abstract Sea otters were re-introduced to British Columbia from Alaska between 1969 and 1972. The first population count was made in 1977. Since 1988, field surveys have been undertaken using small boat or helicopter,