Sexual and aggressive interactions in a visible burrow system with provisioned burrows
Sexual and aggressive interactions in a visible burrow system with provisioned burrows
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DOI：
10.1016/s0031-9384(00)00403-0
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发表时间：
2001-01-01
影响因子：
2.9
通讯作者：
Blanchard, DC
中科院分区：
文献类型：
--
作者：
Blanchard, RJ;Dullogg, L;Blanchard, DC
可见洞穴系统（VBS）是一个为混合鼠群提供洞穴和开放区域的栖息地。在洞穴中提供食物和水使得具有潜在防御能力的动物无需离开洞穴在地表吃/喝，并且可以评估当这种必要性消除时可能出现的新型竞争性相互作用。在这样的群体中，从属雄性表现出高度的隧道守卫行为，占据一条通向地面的隧道并与占主导地位的雄性对抗。作为回应，统治者冲进了隧道，但很快就撤退了，没有进入，显然是因为与防守者的触须接触而停了下来。统治者还对下属守卫的隧道附近的墙壁进行并继续进行横向攻击，尽管这些攻击对于与下属进行接触而言毫无用处。统治者与女性之间的竞争性互动比统治者和下属之间的互动更为频繁。这些主要是由男性发起的，并涉及女性的防御行为。尽管如此，与下属不同，雌性并没有表现出对隧道的保护，而是继续自由地利用表面。在群体形成的几天里，它们还在优势群体附近度过了更多的时间。这种明显的悖论可能反映出雌性很少受伤，并且雄性与雌性接触的最初部位是雌性的肛门生殖器区域，研究结果表明雄性和雌性的相互作用通常反映了雄性的性进步，而雌性的防御有效地保护非发情雌性免于骑乘和交配。 (C) 2001 Elsevier Science Inc. 保留所有权利。
The visible burrow system (VBS) is a habitat providing burrows and an open area for mixed-set rat colonies. Provisioning of food and water in the burrows makes it unnecessary for potentially defensive animals to leave the burrows to eat/drink on the surface, and enables evaluation of new types of agonistic interactions that may emerge when this necessity is removed. In such colonies, subordinate males showed high magnitude tunnel guarding behavior, occupying a tunnel opening onto the surface and confronting the dominant. Dominants, in response, made lunges into the tunnels, but quickly retreated without gaining entry, apparently stopped by contact with the defender's vibrissae. Dominants also made and continued to make lateral attacks to the wall adjacent to the tunnels guarded by subordinates, although these were useless in terms of affording contact with the subordinate. Dominant-female agonistic interactions were more frequent than those of dominants and subordinates. These were largely initiated by the male, and involved female defensive behavior. Nonetheless, females, unlike subordinates, failed to show tunnel guarding and continued to utilize the surface freely. They also spent more time in the vicinity of the dominant over days of colony formation. This apparent paradox may reflect that females were seldom wounded, and that the initial site of male contact with females was the female's anogenital area, findings suggesting that interactions of males and females often reflect male sexual advances, countered by female defenses that effectively protect nonestrus females from mounting and copulation. (C) 2001 Elsevier Science Inc. All rights reserved.