Territorial aggression and dawn song are modulated by septal vasotocin and vasoactive intestinal polypeptide in male field sparrows (Spizella pusilla)
Territorial aggression and dawn song are modulated by septal vasotocin and vasoactive intestinal polypeptide in male field sparrows (Spizella pusilla)
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DOI：
10.1006/hbeh.1998.1467
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发表时间：
1998-08-01
影响因子：
3.5
通讯作者：
Goodson, JL
中科院分区：
文献类型：
--
作者：
Goodson, JL
以前的实验表明，病变的隔膜产生相反的影响，种内雄性侵略领域的麻雀（Spizella pusilla）和殖民斑马雀（Taeniopygia guttata;促进与抑制，分别）和间隔内注入精氨酸催产素（AVT）和血管活性肠多肽（VIP）调节侵略的雄性斑马雀（促进和抑制，分别）。本实验旨在验证以下假设：（1）隔区AVT和VIP调节雄性田野麻雀黎明合唱期间的明显领土攻击和领土歌曲的产生;（2）这些神经肽将发挥与斑胸草雀中观察到的相反的作用，与社会组织与隔区神经肽功能相关的预测一致。野生捕获的雄性野外麻雀装有慢性导向套管直接在隔膜，并在户外鸟舍放置在其自然栖息地进行了测试。侵入测试（引入刺激伴侣）和黎明的歌曲进行观察后，输注AVT，VIP，或生理盐水对照。与预测一致，输注AVT显着抑制追逐和显着增加追逐潜伏期。VIP对追逐或追逐潜伏期没有显著影响，尽管大多数受试者在输注VIP后更具攻击性。AVT和VIP都产生了显着的，选择性的影响复杂（激动）的歌曲类型（促进和抑制，分别），并产生简单（多用途）的歌曲类型没有影响。因此，歌曲和公开的侵略出现调制独立的隔神经肽，隔AVT和VIP功能可能会有所不同的物种，不同的领土或殖民地的社会组织的表达。(C)北京：科学出版社.
Previous experiments demonstrate that lesions of the septum produce opposite effects on intraspecific male aggression in the territorial field sparrow (Spizella pusilla) and the colonial zebra finch (Taeniopygia guttata; facilitate vs inhibit, respectively) and intraseptal infusions of arginine vasotocin (AVT) and vasoactive intestinal polypeptide (VIP) modulate aggression in the male zebra finch (facilitate and inhibit, respectively). The present experiments were conducted to test the hypotheses that (1) septal AVT and VIP modulate both overt territorial aggression and the production of territorial song during the dawn chorus in male field sparrows and (2) these neuropeptides will exert effects opposite of those observed in the zebra finch, consistent with the prediction that social organization is associated with septal neuropeptide function. Wild-caught male field sparrows were fitted with chronic guide cannulae directed at the septum and were tested in outdoor aviaries placed in their natural habitat. Intrusion tests (introduction of a stimulus mate) and dawn song observations were conducted following infusion of AVT, VIP, or saline control. Consistent with predictions, infusion of AVT significantly inhibited chases and significantly increased chase latency. No significant effects of VIP on chasing or chase latency were observed, although most subjects were more aggressive following infusion of VIP. Both AVT and VIP produced significant, selective effects on the complex (agonistic) song type (facilitation and inhibition, respectively) and produced no effect on the simple (multipurpose) song type. Thus, song and overt aggression appear be modulated independently by septal neuropeptides, and septal AVT and VIP function may differ between species which differ in the expression of territorial or colonial social organizations. (C) 1998 Academic Press.