INFECTIOUS-DISEASES, REPRODUCTIVE EFFORT AND THE COST OF REPRODUCTION IN BIRDS
INFECTIOUS-DISEASES, REPRODUCTIVE EFFORT AND THE COST OF REPRODUCTION IN BIRDS
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DOI：
10.1098/rstb.1994.0149
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发表时间：
1994-11-29
影响因子：
6.3
通讯作者：
QVARNSTROM, A
中科院分区：
文献类型：
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作者：
GUSTAFSSON, L;NORDLING, D;QVARNSTROM, A
繁殖努力会对随后的表现产生深远的影响。对颈鹟（Ficedula albicollis）的现场实验表明，不同年龄的生活史特征之间存在一些权衡。生殖努力影响未来生殖表现的机制仍然不清楚。细胞介导的免疫等抗寄生虫适应措施也可能代价高昂。因此，在繁殖努力和抵抗寄生虫感染的能力之间存在权衡的可能性。对未经人工处理的颈鹟的血清学测试表明，繁殖前的营养状况与繁殖成功率呈正相关，与寄生虫（病毒、细菌和原生动物寄生虫）的易感性呈负相关。免疫反应和传染病的一些指标都与繁殖成功呈负相关。第二性征和感染参数之间也存在类似的关系。对于雏鸡大小操纵的鸟类，在当前和未来的繁殖力方面，实验增加的繁殖努力与寄生虫感染率之间存在显着的相互作用。寄生虫感染、营养和繁殖努力之间的相互作用似乎可能是最终形成鸟类种群生活史变异的重要机制。
Reproductive effort can have profound effects on subsequent performance. Field experiments on the collared flycatcher (Ficedula albicollis) have demonstrated a number of trade-offs between life-history traits at different ages. The mechanism by which reproductive effort is mediated into future reproductive performance remains obscure. Anti-parasite adaptations such as cell-mediated immunity may probably also be costly. Hence the possibility exists of a trade-off between reproductive effort and the ability to resist parasitic infection. Serological tests on unmanipulated collared flycatchers show that pre-breeding nutritional status correlates positively with reproductive success and negatively with susceptibility to parasitism (viruses, bacteria and protozoan parasites). Both immune response and several indicators of infectious disease correlate negatively with reproductive success. Similar relations are found between secondary sexual characters and infection parameters. For brood-size-manipulated birds there was a significant interaction between experimentally increased reproductive effort and parasitic infection rate with regard to both current and future fecundity. It seems possible that the interaction between parasitic infection, nutrition and reproductive effort can be an important mechanism in the ultimate shaping of life-history variation in avian populations.