免疫挑战导致父母的努力下降,伴侣的补偿
Alejandro Martínez-Flores1,2, Bibiana Montoya3, Roxana Torres1
1Laboratorio de Conducta Animal, Departamento de Ecología Evolutiva, Instituto de Ecología Universidad Nacional Autónoma de México, Circuito exterior Jardín Botánico, Ciudad de México, CP 04510, México.
概括
在化期间激活棕色乳头父母的免疫反应并没有增加氧化应激. 然而,它减少了父母的照顾,由他们的配偶补偿,确保后代的成功.
科学领域:
- 生态生态学 生态生态学
- 动物行为 动物行为
- 免疫学 免疫学 免疫学
背景情况:
- 免疫系统的激活对于抗击感染至关重要,但可能会产生成本,可能会影响生殖和其他生命历史特征.
- 免疫功能和生殖之间的权衡是进化生物学研究的一个关键领域.
研究的目的:
- 为了研究实验性免疫挑战对氧化应激,父母关怀和棕色乳头 (Sula leucogaster) 的后代结果的影响.
- 为了确定免疫激活是否会损害父母的努力,以及非挑战性伴侣是否会弥补这种减少的努力.
主要方法:
- 在化期间,繁殖的棕色子对接受了免疫挑战,使用内注射大肠杆菌脂多糖 (LPS) 进行免疫挑战.
- 研究人员监测了氧化应激参数,父母的照顾行为 (清洁,养率),以及后代的生长和免疫反应.
主要成果:
- 免疫激活并没有导致父母的氧化损伤增加或抗氧化能力改变.
- 接受LPS治疗的父母在家长的照顾行为 (包括清洁和养率) 显著减少 (约为50%).
- 经过LPS治疗的父母的非挑战性伴侣增加了他们的养率,证明了补偿性父母关怀.
结论:
- 棕色乳头的实验性免疫挑战在养阶段损害了父母的投资.
- 伴侣对父母照顾的补偿有效地减轻了免疫激活对后代生长和健康的负面影响.
- 这些发现强调了双亲关怀和社会补偿策略在长寿物种中的重要性,这些物种面临着诸如免疫威胁等生态挑战.
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