HIGH HUNTING PRESSURE SELECTS FOR EARLIER BIRTH DATE: WILD BOAR AS A CASE STUDY
HIGH HUNTING PRESSURE SELECTS FOR EARLIER BIRTH DATE: WILD BOAR AS A CASE STUDY
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DOI：
10.1111/j.1558-5646.2011.01366.x
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发表时间：
2011-11-01
期刊：
影响因子：
3.3
通讯作者：
Gimenez, Olivier
中科院分区：
文献类型：
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作者：
Gamelon, Marlene;Besnard, Aurelien;Gimenez, Olivier
人类的剥削影响到人口的规模和结构。这对进化和人口统计学的影响通常是相互独立的。我们在这里应用了一个框架，最近开发的应用定量工具，从人口生态学和选择梯度分析，以量化选择的数量性状出生日期，通过其关联多个健身组件。从长期监测（22年）的野猪（Sus scrofa scrofa）人口狩猎压力显着增加，我们发现，出生日期提前了12天，在整个研究期间。在低狩猎压力期间，没有可检测到的选择。然而，在狩猎压力高的时期，在第一年的生活，出生日期的选择梯度连接的繁殖概率是负的，支持目前的生活史理论预测选择早期出生的第一年内的生活与成人死亡率增加繁殖。
Exploitation by humans affects the size and structure of populations. This has evolutionary and demographic consequences that have typically being studied independent of one another. We here applied a framework recently developed applying quantitative tools from population ecology and selection gradient analysis to quantify the selection on a quantitative trait-birth date-through its association with multiple fitness components. From the long-term monitoring (22 years) of a wild boar (Sus scrofa scrofa) population subject to markedly increasing hunting pressure, we found that birth dates have advanced by up to 12 days throughout the study period. During the period of low hunting pressure, there was no detectable selection. However, during the period of high hunting pressure, the selection gradient linking breeding probability in the first year of life to birth date was negative, supporting current life-history theory predicting selection for early births to reproduce within the first year of life with increasing adult mortality.