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Killer Whales Orcinus Orca Of Southern Alaska
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Book Synopsis Hotspots and Behavioral Patterns of Southern Alaska Resident Killer Whales (Orcinus Orca) by : Daniel W. Olsen
Download or read book Hotspots and Behavioral Patterns of Southern Alaska Resident Killer Whales (Orcinus Orca) written by Daniel W. Olsen and published by . This book was released on 2017 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: The resident killer whale (Orcinus orca) is a genetically and behaviorally distinct ecotype of killer whale that feeds primarily on Pacific salmon (Oncorhynchus spp.). Long-term monitoring over 30 years of study has enabled detailed investigation into pod-specific, seasonal, and compositional differences in space use and behavior. To investigate use of habitat, 33 resident killer whales representing 14 pods in the northern Gulf of Alaska were tagged with satellite transmitters during all years from 2006 to 2014, and transmissions were received during the months of June to January. Core use areas were identified through utilization distributions using a biased Brownian Bridge movement model. Tagging results indicate different core use areas between pods, which could be due to cultural transmission within matrilineal groups. To investigate differences in behavior, 1337 hours of behavioral data were collected from 2006 to 2015. For these observations, chi squared tests were used to determine significant differences in behavior budgets between seasons, regions, haplotypes, and numbers of pods. The presence of 'rarely sighted' pods (sighted in less than 5% of encounters) had a large influence on the frequency of social behavior, which increased from 18.5% without their presence to 31.4% with it (X2 = 17.3, df = 1, P
Book Synopsis A Photographic Catalog of Killer Whales, Orcinus Orca, from the Central Gulf of Alaska to the Southeastern Bering Sea by : Marilyn E. Dahlheim
Download or read book A Photographic Catalog of Killer Whales, Orcinus Orca, from the Central Gulf of Alaska to the Southeastern Bering Sea written by Marilyn E. Dahlheim and published by Seascape Research Alliance. This book was released on 1997 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Killer Whales (Orcinus Orca) of Southern Alaska by : Stephen Leatherwood
Download or read book Killer Whales (Orcinus Orca) of Southern Alaska written by Stephen Leatherwood and published by . This book was released on 1984 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Killer Whales of Southern Alaska by : Craig Matkin
Download or read book Killer Whales of Southern Alaska written by Craig Matkin and published by . This book was released on 1999-05-01 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Population(s) of Killer Whales, Orcinus Orca, Off Southern Alaska and in Adjacent Northeast Pacific Waters by : Hubbs-Sea World Research Institute
Download or read book The Population(s) of Killer Whales, Orcinus Orca, Off Southern Alaska and in Adjacent Northeast Pacific Waters written by Hubbs-Sea World Research Institute and published by . This book was released on 1983* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Killer Whales (Orcinus Orca) In Southeast Alaska, Prince William Sound, And Shelikof Strait by : Stephen Leatherwood
Download or read book Killer Whales (Orcinus Orca) In Southeast Alaska, Prince William Sound, And Shelikof Strait written by Stephen Leatherwood and published by . This book was released on 1984 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Killer Whales of Prince William Sound, Alaska by : John D. Hall
Download or read book Killer Whales of Prince William Sound, Alaska written by John D. Hall and published by . This book was released on 1986 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transients written by John K.B. Ford and published by UBC Press. This book was released on 2011-11-01 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on transient killer whales. Enigmatic and elusive, these mammal-hunting whales are difficult animals to study. They travel in small groups, often moving unpredictably, which makes them less conspicuous than the larger resident pods. For these and other reasons, our understanding of the life history and ecology of transient killer whales has lagged behind that of residents. Transients contains the latest information on the natural history of transient killer whales, including their feeding habits, social lives, and distribution patterns. The catalogue section contains photographs of and notes on over 200 individual whales. Numerous sidebars contain interesting observations on encounters with transients as well as information on how and where to best watch them.
Book Synopsis A Photographic Catalog of Killer Whales, Orcinus Orca, from the Central Gulf of Alaska Ant the Southeastern Bering Sea by :
Download or read book A Photographic Catalog of Killer Whales, Orcinus Orca, from the Central Gulf of Alaska Ant the Southeastern Bering Sea written by and published by . This book was released on 1997 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Killer Whales written by Robin W. Baird and published by New Line Books. This book was released on 2002 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Killer whales are the supreme predators in the ocean. This introduction to killer whales, or orcas, pieces together the latest information on their life histories. How they communicate and maintain well-established societies, with intricate family relationships, over long lifespans. We also learn that killer whales must now contend with toxic pollutants, overfishing of their prey and a host of other environmental concerns. Illustrated by the world's best wildlife photographers, this book brings us face to face with these intriguing creatures in their underwater realms.
Book Synopsis Killer Whales of Southern Alaska by : Kenneth C. Balcomb
Download or read book Killer Whales of Southern Alaska written by Kenneth C. Balcomb and published by . This book was released on 1984 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Killer Whale (Orcinus Orca) by : Craig O. Matkin
Download or read book Killer Whale (Orcinus Orca) written by Craig O. Matkin and published by . This book was released on 1994 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Call types of Bigg's killer whales (Orcinus orca) in western Alaska by : Deborah Lynn Sharpe
Download or read book Call types of Bigg's killer whales (Orcinus orca) in western Alaska written by Deborah Lynn Sharpe and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eavesdropping on Killer Whales written by and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The widespread loss of apex consumers in marine, terrestrial, and freshwater ecosystems throughout the world has precipitated profound trophic cascades and switches to different ecological states. However, conserving top predators can deliver broad biodiversity benefits and improve ecosystem resiliency. Effective conservation and management policy is predicated on a species’ distribution and abundance in a given area and time. In this dissertation, I provide new insight into killer whale (Orcinus orca) distribution, vocal behavior, and abundance in the Gulf of Alaska using passive acoustic monitoring and advance long-term monitoring capacity for this species. First, I describe the year-round spatiotemporal distribution and daily acoustic residency patterns of southern Alaska resident (fish-eating) and two populations of transient (mammal-eating) killer whales. I found distinct seasonal patterns across locations for each genetically distinct population and discovered that both resident and transient killer whales used the coastal monitoring areas more extensively than previously known—including in winter. Second, I estimated resident and transient killer whale calling rates, a prerequisite to acoustic abundance estimation. I found that the mean calling rate for southern Alaska resident (fish-eating) killer whales was consistent across space, time, ambient noise level, which pod was calling, and the presence of other pods. Gulf of Alaska transient (mammal-eating) killer whale calling rates were higher than resident’s and differed across locations. AT1 transients (mammal-eating) produced fewer calls more rapidly than Gulf of Alaska transients, and their mean rate was stable across spatiotemporal factors. Although transients call less often than residents, I found that once vocalizing, they do so at a higher rate. Finally, I estimated and modeled the year-round daily acoustic abundance of resident and transient killer whales across distinct areas in the Gulf of Alaska and developed Bayesian time series models to describe seasonal patterns and predict future abundance. Acoustic abundance estimates for the southern Alaska resident and Gulf of Alaska transient killer whales matched expectations from visual studies. I established distinct seasonal abundance patterns across areas, and acoustic monitoring enabled killer whale abundance estimation across a greater spatiotemporal extent than other methods. This work is critical for an accurate understanding of killer whales’ top-down forcing effects in the marine ecosystem, as well as to inform conservation and management policy for this federally protected species.
Book Synopsis The Behavior and Vocalizations of the "AT" Group of Killer Whales (Orcinus Orca) in Prince William Sound, Alaska by : Eva Saulitis
Download or read book The Behavior and Vocalizations of the "AT" Group of Killer Whales (Orcinus Orca) in Prince William Sound, Alaska written by Eva Saulitis and published by . This book was released on 1993 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Queen Orca & the Pigs by : R.V. Bailey
Download or read book Queen Orca & the Pigs written by R.V. Bailey and published by Spider Books Publishing. This book was released on 2016-06-19 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: The disappearance of a Reno couple from Prince William Sound, Alaska, along with a half eaten dog, apparently by killer whales, raises suspicion that a certain orca pack, called the A-T pack, led by a particularly sharp and aggressive female, the queen, may be responsible. An exploration geologist and his wife, Alaska residents and both interested in orcas, carry out investigations in the A-T pack's home waters to learn more about their behavior and habits. They are joined by a marine biologist orca specialist from southern California. A number of people are determined to communicate with the orcas, including a psychologist from Canada, a rock band from Vancouver, BC. and music for the orcas via underwater speakers. Some kids from Anchorage attempt to communicate with the whales with near-fatal consequences. Accompany the intelligent orcas as they hunt, kill and eat various types of fish and animals. They also have fun. The three investigators decide to test the interest of the orcas, under federal and state supervision, in a totally strange food to help determine if they might kill and eat humans. Small pigs, a human food, were decided upon as the best choice for testing orca reaction to strange food animals. The test is successful and part of the A-T pack is orca led but not for long.
Book Synopsis Killer Whales by : Sara Heimlich-Boran
Download or read book Killer Whales written by Sara Heimlich-Boran and published by . This book was released on 1994 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Killer whales are supreme predators of the world's oceans. Once deemed bloodthirsty killers, these voracious creatures have been at the most dramatic reversals of public opinion in human history. This book explores the ecology and behaviour of killer whales and outlines what can be done to conserve one of the legends of the deep.