. Advances in the study of mammalian behavior. Mammals. Adaplivenc^s of Hrhmnor UW). O 2 1- UJ < _l < 1 < 2 < 1 UJ Ll. cn U. (n O 2 III UJ O < 2 < UJ -3 o (T (/I UJ D Ql UJ CD H cr < "I 1 1 1 r J-M F-M M-A A-M M-J J-J J-A A-S S-0 0-N N-D D-J TIME IN LUNAR MONTHS, 1973 , Fig. 9. Monthly variation in percent of female Artibeus jamaicensis that are lactating and number of preferred canopy trees with ripe fruits on Barro Colorado Island, Panama (from Humphrey and Bonaccorso 1979). example, many primates and some ungulates). Of course, the form of reproduction in marsupial
. Advances in the study of mammalian behavior. Mammals. Adaplivenc^s of Hrhmnor UW). O 2 1- UJ < _l < 1 < 2 < 1 UJ Ll. cn U. (n O 2 III UJ O < 2 < UJ -3 o (T (/I UJ D Ql UJ CD H cr < "I 1 1 1 r J-M F-M M-A A-M M-J J-J J-A A-S S-0 0-N N-D D-J TIME IN LUNAR MONTHS, 1973 , Fig. 9. Monthly variation in percent of female Artibeus jamaicensis that are lactating and number of preferred canopy trees with ripe fruits on Barro Colorado Island, Panama (from Humphrey and Bonaccorso 1979). example, many primates and some ungulates). Of course, the form of reproduction in marsupials demands an extended period of post- natal care, but even beyond this influence some marsupials seem to have an extended bond established between mother and offspring. This condition is most notable in the koala {Phascolarctos cinereus) and various macropods. Another factor that contributes to the devel- opment of an extended period of care is life in trees (Eisenberg, 1975). Sloths, pangolins, and the koala (all of which have very low basal rates), and many primates have extended periods of care cor- related in part with strictly arboreal habits. Social Behavior The presence of integrated social behavior is related to food hab- its, in part because the food must be capable of sustaining a suffi- ciently dense population for social behavior to occur and because the foods used are often associated with specific habitats that may place constraints on sociality. These relationships have been shown among marsupials, primates, ungulates, and carnivores. For exam- ple, most social marsupials are strict grazers. As Kaufmann (1974(3) noted: "Being grazers, [the] abundant food supply [of whiptail wal-. 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
Size: 2038px × 1227px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectmammals
