优势和从属雄性大仓鼠间对抗遭遇和脑神经激活关系的研究

来源 :第六届全国野生动物生态与资源保护学术研讨会暨中国动物学会兽类学分会和鸟类学分会成立三十周年纪念会 | 被引量 : 0次 | 上传用户:isongnosi
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大仓鼠(Tscheskia triton)主要分布在华北平原,为农田主要害鼠之一.以前对大仓鼠的研究多侧重于种群动态等生态学热点问题.近年来,通过行为学的研究发现该鼠种具有一些不同于实验室和其它野外鼠种的行为特性:独居,雌性和雄性都有较强的攻击性,并且两鼠相遇时能快速地形成等级,其中优势鼠表现出较强的攻击性和标记行为,从属鼠则表现出较多的防御行为.虽然已有研究表明大仓鼠雄性间这种好斗行为和等级快速的建立跟皮质酮和睾酮等激素存在一定的关联,然而其深层机制,特别是更直接的神经调控机制仍远未清楚.
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大仓鼠(Tscherskiatriton)和布氏田鼠(Lasiopodomys brandtii)是两种不同社群类型的动物,其中大仓鼠为独居性动物,布氏田鼠为群居性动物.以往的研究显示大仓鼠和布氏田鼠在社会行为上存在显著差异,如大仓鼠具有更强的攻击性,布氏田鼠具有更多的社会亲密行为.虽然已有一些研究显示这些行为可能跟激素有关,然而参与直接调控社会行为的中枢神经系统却鲜有人研究.
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