Immune challenge induces terminal investment at an early breeding stage in female zebra finches

Sandra Sköld-Chiriac, Jan-Åke Nilsson and Dennis Hasselquist

Behavioral Ecology, 2019, vol. 30, issue 1, 166-171

Abstract: Animals are usually faced with a trade-off between investing in reproduction or in survival. Although animals normally seek a compromise, they might invest most of their resources into reproduction if they feel that this may be the last reproductive event in their life. We vaccinated female zebra finches, resulting in their immune system signaling sickness. Vaccinated finches produced more eggs than controls, thus reacting as if they were making a final investment.

Keywords: early breeding stage; eco-immunology; life-history trade-offs; maternal effects; Taenopygia guttata; terminal investment (search for similar items in EconPapers)
Date: 2019
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