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Hunting And Social Behaviour Of Leopard Seals Hydrurga Leptonyx At Seal Island South Shetland Islands Antarctica
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Book Synopsis Hunting and social behaviour of leopard seals (Hydrurga leptonyx) at Seal Island, South Shetland Islands, Antarctica by : L.M. HIRUKI
Download or read book Hunting and social behaviour of leopard seals (Hydrurga leptonyx) at Seal Island, South Shetland Islands, Antarctica written by L.M. HIRUKI and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Leopard Seals written by Sandra Markle and published by Lerner Publications. This book was released on 2009-09-01 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces the physical characteristics, habitat, and predatory behavior of leopard seals.
Book Synopsis Encyclopedia of the Antarctic by : Beau Riffenburgh
Download or read book Encyclopedia of the Antarctic written by Beau Riffenburgh and published by Taylor & Francis. This book was released on 2007 with total page 1274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher description
Book Synopsis Oceanography and Marine Biology, An Annual Review, Volume 40 by : R. N. Gibson
Download or read book Oceanography and Marine Biology, An Annual Review, Volume 40 written by R. N. Gibson and published by CRC Press. This book was released on 2002-08-29 with total page 981 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in oceanography and marine biology and its relevance to global environmental issues continues to increase, creating a demand for authoritative reviews that summarize recent research. Oceanography and Marine Biology: An Annual Review has catered to this demand since its foundation, by the late Harold Barnes, more than 40 years ago. It is an
Book Synopsis Marine Mammals of the World: A Comprehensive Guide to Their Identification by : Thomas Allen Jefferson
Download or read book Marine Mammals of the World: A Comprehensive Guide to Their Identification written by Thomas Allen Jefferson and published by Elsevier. This book was released on 2011-08-29 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: With coverage on all the marine mammals of the world, authors Jefferson, Webber, and Pitman have created a user-friendly guide to identify marine mammals alive in nature (at sea or on the beach), dead specimens “in hand , and also to identify marine mammals based on features of the skull. This handy guide provides marine biologists and interested lay people with detailed descriptions of diagnostic features, illustrations of external appearance, beautiful photographs, dichotomous keys, and more. Full color illustrations and vivid photographs of every living marine mammal species are incorporated, as well as comprehendible maps showing a range of information. For readers who desire further consultation, authors have included a list of literature references at the end of each species account. For an enhanced understanding of habitation, this guide also includes recognizable geographic forms described separately with colorful paintings and photographs. All of these essential tools provided make Marine Mammals of the World the most detailed and authoritative guide available! * Contains superb photographs of every species of marine mammal for accurate identification * Authors’ collective experience adds up to 80 years, and have seen nearly all of the species and distinctive geographic forms described in the guide * Provides the most detailed and anatomically accurate illustrations currently available * Special emphasis is placed on the identification of species in “problem groups, such as the beaked whales, long-beaked oceanic dolphin, and southern fur seals * Includes a detailed list of sources for more information at the back of the book.
Book Synopsis Encyclopedia of Marine Mammals by : W. F. Perrin
Download or read book Encyclopedia of Marine Mammals written by W. F. Perrin and published by Gulf Professional Publishing. This book was released on 2002-01-22 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes articles devoted to wide range of topics -- from the specific behavior and physiology of cetaceans and pinnipeds, to ecology, population biology, human effects and interaction, and research methodology.
Book Synopsis Codified Regulations at 50 CFR Part 300 Subparts A and G Implementing Conservation and Management Measures Adopted by the Commission for the Conservation of Antarctic Marine Living Resources by :
Download or read book Codified Regulations at 50 CFR Part 300 Subparts A and G Implementing Conservation and Management Measures Adopted by the Commission for the Conservation of Antarctic Marine Living Resources written by and published by . This book was released on 2005 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Northwest Training Range Complex by :
Download or read book Northwest Training Range Complex written by and published by . This book was released on 2010 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Animal Behaviour Abstracts written by and published by . This book was released on 2000 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NSWC PCD Mission Activities written by and published by . This book was released on 2009 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mariana Islands Range Complex written by and published by . This book was released on 2010 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Southern California Range Complex by :
Download or read book Southern California Range Complex written by and published by . This book was released on 2008 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atlantic Fleet Active Sonar Training by :
Download or read book Atlantic Fleet Active Sonar Training written by and published by . This book was released on 2008 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Foraging Ecology, Diet, and Mass Estimation of an Apex Predator, the Leopard Seal (Hydrurga Leptonyx), at Livingston Island, Antarctic Peninsula by : Douglas Krause
Download or read book The Foraging Ecology, Diet, and Mass Estimation of an Apex Predator, the Leopard Seal (Hydrurga Leptonyx), at Livingston Island, Antarctic Peninsula written by Douglas Krause and published by . This book was released on 2016 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describing the foraging dynamics of apex predators is crucial to understanding ecosystem function and to effective conservation and management. Leopard seals are conspicuous apex predators in Antarctic coastal ecosystems; however, their foraging ecology is poorly understood. Likely due to a geographical redistribution driven by pack-ice habitat reduction in the western Antarctic Peninsula, leopard seals have been hauling out at Cape Shirreff with increasing frequency in recent years. Utilizing that rare access we implemented an integrated sampling design including morphometrics, biological samples, and bio-logger deployments in January and February between 2008 and 2014. Subsequently, we quantified foraging behavior using: k-means cluster (diving), time-local convex hulls (movement), Bayesian stable isotope mixing models (diet), and linear regression (mass estimation) analyses. While they are typically described as generalist apex predators, video, dive, and movement data suggest they employ specialized foraging patterns. They affect coastal ecosystems through pathways beyond direct predation, including intraspecific kleptoparasitism, predator-induced stress effects, facultative scavenging and food caching. Leopard seal diving behavior is concentrated at night, is both shallow and coastal, and is composed of four distinct dive types. Haul-out probabilities were highest near midday and were positively correlated with available daylight. Video, scat and stable isotope analyses indicate that their summer diet contains four prey groups: Antarctic fur seals, pygoscelid penguins, krill, and demersal notothen fishes. Finally, measurements of body size and mass are fundamental to pinniped population management and research. The recent proliferation of unmanned aerial systems (UAS) in wildlife monitoring has provided a promising new platform for the photogrammetry of free-ranging pinnipeds. Photogrammetric measurements from a single, vertical image obtained using UAS were as accurate as ground measures, and provide a noninvasive approach for estimating the mass and body condition of pinnipeds. This dissertation provides substantial insight into the hunting tactics, foraging behavior, and diet of large adult female leopard seals and provides a viable option for future monitoring.
Download or read book Leopard Seals written by Rita Santos and published by Enslow Publishing, LLC. This book was released on 2019-12-15 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The solitary leopard seal is a fierce hunter and a graceful swimmer. It spends most of its time swimming in the frigid waters of Antarctica. How does it survive in this extreme environment? With the help of color photographs and fun facts, this accessible text explores how the leopard seal's life cycle, body structure, and behaviors have adapted to make it one of the most fearsome predators in one of the coldest places in the world. An engaging final activity encourages readers to use what they've learned to create an Antarctic food web.
Book Synopsis Oceanographic Literature Review by :
Download or read book Oceanographic Literature Review written by and published by . This book was released on 2000 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Underwater Vocalizations of Leopard Seals (Hydrurga Leptonyx) and Crabeater Seals (Lobodon Carcinophagus) Near the South Shetland Islands, Antarctica by : Ian Stirling
Download or read book Underwater Vocalizations of Leopard Seals (Hydrurga Leptonyx) and Crabeater Seals (Lobodon Carcinophagus) Near the South Shetland Islands, Antarctica written by Ian Stirling and published by . This book was released on 1979 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitatively describes four underwater vocalizations of leopard seals and one of crabeater seals, illustrated with sound spectrographs.