Sun L, MÜller-schwarze D
Department of Biology, College of Environmental Science and Forestry, State University of New York
Anim Behav. 1998 Jun;55(6):1529-36. doi: 10.1006/anbe.1997.0709.
By repeatedly presenting an alien scent to territory-owning beavers, Castor canadensis, we tested two competing hypotheses about the function of scent marking: scent fence and scent matching. The scent-fence hypothesis predicts that territory owners should respond increasingly strongly over time towards a recurrent alien scent because of the ineffectiveness of previous responses. The scent-matching hypothesis predicts that the intensity of response should be the same or decrease because, without the presence of the intruding signaller coupled with the chemical signal, the presence of the scent itself does not advertise the ownership of a territory. The response level of resident beaver families was stable to strangers' anal gland secretions (AGSs) and decreased to strangers' castoreum during a period of 6 days. These results support the scent-matching hypothesis but not the scent-fence hypothesis. Copyright 1998 The Association for the Study of Animal Behaviour. Copyright 1998 The Association for the Study of Animal Behaviour.
通过反复向拥有领地的加拿大河狸（Castor canadensis）呈现一种外来气味，我们检验了关于气味标记功能的两种相互竞争的假说：气味屏障假说和气味匹配假说。气味屏障假说预测，由于先前反应无效，领地所有者随着时间推移应对反复出现的外来气味反应越来越强烈。气味匹配假说预测，反应强度应该相同或降低，因为在没有入侵信号发出者以及化学信号的情况下，气味本身的存在并不能表明领地的所有权。在6天的时间里，常住河狸家族对陌生个体的肛门腺分泌物（AGSs）的反应水平保持稳定，而对陌生个体的海狸香的反应水平则下降。这些结果支持气味匹配假说，而不支持气味屏障假说。版权所有1998年动物行为研究协会。版权所有1998年动物行为研究协会。
