Dean John M
Program in Evolutionary, Ecology and Behavior, Department of Zoology, University of Iowa, 52242, Iowa City, Iowa, USA.
Oecologia. 1981 Mar;48(3):385-388. doi: 10.1007/BF00346499.
An experiment was conducted to examine the relationship between reproduction and longevity in an annual iteroparous species of grasshopper, Melanoplus sanguinipes. Two hypotheses derived from life history theory were tested. These included: 1) virgin females produce fewer eggs and live longer than mated females, and 2) the rate of egg production and longevity are negatively related. The results of this study indicated that there is no trade-off between reproduction and longevity in this species of grasshopper. It is suggested that other factors, such as male-female interactions, may be more important in affecting female survival than reproduction.
进行了一项实验，以研究一年生多次繁殖的蚱蜢物种——红腿蝗（Melanoplus sanguinipes）的繁殖与寿命之间的关系。对从生活史理论得出的两个假设进行了检验。这些假设包括：1）未交配的雌性蚱蜢产卵较少且寿命比已交配的雌性蚱蜢长；2）产卵率与寿命呈负相关。这项研究的结果表明，在这种蚱蜢物种中，繁殖与寿命之间不存在权衡取舍。有人提出，诸如雌雄互动等其他因素，在影响雌性蚱蜢的生存方面可能比繁殖更为重要。
