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    Putative pheromones in the urine of male moose: evolution of honest advertisement?

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    Author
    Whittle, Chris Linda
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    URI
    http://hdl.handle.net/11122/7409
    Abstract
    I tested hypotheses about how olfactory communication is related to mating behavior in Alaskan moose (Alces alces gigas). Males dig rutting pits where urine is deposited to which females strongly respond. Consequently, male urine may contain primer pheromones that synchronize estrus of females. Urine samples were collected from captive moose on the Kenai Peninsula, Alaska. Samples included those from the mating season and from the nonrutting period for two adult males, one yearling male, and one male and one female calf. After pH adjustment, samples were extracted with methylene chloride to yield 3 fractions (acidic, neutral, and basic), which were analyzed by gas chromatography-mass spectrometry. Putative pheromones include unsaturated alcohols and homologs of tetrahydro-6-methyl pyranone, and 2-nonen-4-one. I hypothesize that these compounds are related to hypophagia and catabolism of body reserves by rutting males, and thereby provide an honest advertisement of body condition in moose.
    Description
    Thesis (M.S.) University of Alaska Fairbanks, 1999
    Date
    1999-12
    Type
    Thesis
    Collections
    Biological Sciences

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