. Advances in the study of mammalian behavior. Mammals. 504 Spec. Publ. Amer. Soc. Mamm. 7. Fig. 3. Male Weddell seal {Leptonychotes weddelli) defending underwater terri- tory below breathing hole. The extent to which the location, stabihty, and access to suitable habitat for parturition are predictable have had a strong influence on the behavior of pinnipeds. The locations of islands are com- pletely predictable. In ice-free waters at least, access is also pre- dictable, although it may be influenced locally by geographic fea- tures, and thus affect the density to which parturient females wil
. Advances in the study of mammalian behavior. Mammals. 504 Spec. Publ. Amer. Soc. Mamm. 7. Fig. 3. Male Weddell seal {Leptonychotes weddelli) defending underwater terri- tory below breathing hole. The extent to which the location, stabihty, and access to suitable habitat for parturition are predictable have had a strong influence on the behavior of pinnipeds. The locations of islands are com- pletely predictable. In ice-free waters at least, access is also pre- dictable, although it may be influenced locally by geographic fea- tures, and thus affect the density to which parturient females will aggregate, and the distribution of terrestrial males. Consequently, pinniped females have developed a high degree of fidelity to specific pupping sites and males are faithful in the defense of specific ter- ritories (for example, Carrick et al., 1962; Johnson^ 1968). In the polar landfast-ice habitat, cracks in the ice where breathing holes can be maintained occur in the same places each year although annual variations in ice conditions may affect the extent to which breathing holes can be maintained. Consequently, individual Wed- dell seals have a high degree of fidelity to a general area for pupping but they may move about between particular colonies between years depending on ice conditions (Stirling, 1969, 1974). In the pack ice there may be considerable variation between years in the size and type of ice floes present, the amount of open water, and the move-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Eisenberg, John Frederick; Kleiman, Devra G; American Society of Mammalogists. [Shippensburg, Pa?] : American Society of Mammalogists
Size: 1934px × 1292px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectmammals
