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Book Dynamics of a Weddell Seal  Leptonychotes Weddellii  Population in McMurdo Sound  Antarctica

Download or read book Dynamics of a Weddell Seal Leptonychotes Weddellii Population in McMurdo Sound Antarctica written by Michael Foley Cameron and published by . This book was released on 2001 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Long Term Patterns in Life History Characteristics and Population Dynamics of Weddell Seals  Leptonychotes Weddelli  in McMurdo Sound  Antarctica

Download or read book Long Term Patterns in Life History Characteristics and Population Dynamics of Weddell Seals Leptonychotes Weddelli in McMurdo Sound Antarctica written by J. Ward Testa and published by . This book was released on 1987 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The population dynamics of Weddell seals in McMurdo Sound, Antarctica, were studied between 1970 and 1984 using various methods. This thesis is a synthesis of the results of that research.

Book Reproductive Strategies of Weddell Seals in McMurdo Sound  Antarctica

Download or read book Reproductive Strategies of Weddell Seals in McMurdo Sound Antarctica written by Ludivine Blandine Rousseau and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Phocid seals (true seals, Order Carnivora, Family Phocidae) use a diverse array of breeding habitats and strategies, and produce many vocalizations. Therefore, phocids are well suited as subjects for study of reproductive strategies and the role of vocalizations in species mating at sea. However, the amount of information is still limited for aquatically breeding pinnipeds. Using underwater audio and video recordings of Weddell seals (Leptonychotes weddellii) interacting in McMurdo Sound, I compared the frequencies of vocalizations and behaviors of males and females during the mating season. I also investigated differences in these frequencies based on the social context. Finally, I identified patterns of vocalizations and behaviors to help determine the behavioral context of calls and used this information as a basis for considering the degree of ritualization in Weddell seal displays. Mews, growls, knocks, and trills were found to be almost exclusively male-specific. The territorial male produced chirps more often when another male was present in its territory; whereas, mews and growls were more frequent when one or more free-ranging females were present. Several vocal and behavioral padeparture of the territorial male into or from the breathing hole. In the context of an evolutionary-based model of communication, these findings suggest that low-frequency vocalizations and stereotyped displays produced by territorial males may have been favored by sexual selection: they may provide reliable information to females about the fitness of the signaler and influence their choice of mate. They may also help in limiting conflicts between the territorial male and females over access to the breathing hole.

Book Weddell Seals

    Book Details:
  • Author : Jeremy Schmidt
  • Publisher : Weddell Seal Science
  • Release : 2023-10-06
  • ISBN : 1881480194
  • Pages : 196 pages

Download or read book Weddell Seals written by Jeremy Schmidt and published by Weddell Seal Science. This book was released on 2023-10-06 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 50 years, the Weddell Seal Science project has been studying the world’s southernmost breeding mammal in its farthest-south location, McMurdo Sound, on the ice-bound edge of Antarctica. This book explores the life history of Weddell seals — surprisingly approachable big-eyed, smiling-faced creatures — and details the science of studying them: the techniques, the motivations, the objectives, and the results. Although science is at the heart of the book, this is also an adventure story about scientists living in a remote field camp, far out on the sea ice, surrounded by glaciers, where you can feel the ocean pulsing beneath your feet. Seals are all around, penguins walk through camp, the weather can be exquisitely beautiful or too severe to step outside. Simply being there would be a wonderful experience on its own but in this case the objective is science — a deeper understanding of our endlessly fascinating planet.

Book Annual Cycles of Diving Behavior and Ecology of the Weddell Seal

Download or read book Annual Cycles of Diving Behavior and Ecology of the Weddell Seal written by Michael Angelo Castellini and published by Univ of California Press. This book was released on 1992-01-01 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work details more than ten years of study in the Antarctic on the diving biology of Weddell seals, a species capable of diving over 600 meters and for as long as 82 minutes. The authors focus on seasonal diving patterns and geographical differences and discuss how diving patterns are influenced by the physical and ecological environment of the seals.

Book Ecology of the Weddell seal in McMurdo Sound  Antarctica

Download or read book Ecology of the Weddell seal in McMurdo Sound Antarctica written by I. STIRLING and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Killing of Weddell Seals at McMurdo Sound  Antarctica

Download or read book Killing of Weddell Seals at McMurdo Sound Antarctica written by Henrik Moller and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Estimation and Analysis of Factors that Control a Population of Weddell Seals  Leptonychotes Weddelli  in McMurdo Sound  Antarctica

Download or read book Estimation and Analysis of Factors that Control a Population of Weddell Seals Leptonychotes Weddelli in McMurdo Sound Antarctica written by Douglas P. DeMaster and published by . This book was released on 1978 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Foraging Behavior of Free ranging Weddell Seals  Leptonychotes Weddelli  in the Antarctic Fast ice Environment

Download or read book Foraging Behavior of Free ranging Weddell Seals Leptonychotes Weddelli in the Antarctic Fast ice Environment written by Kiersten Marie Madden and published by . This book was released on 2007 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: