HIGH HUNTING PRESSURE SELECTS FOR EARLIER BIRTH DATE: WILD BOAR AS A CASE STUDY
作者： Marlene Gamelon , Aurelien Besnard , Jean‐Michel Gaillard , Sabrina Servanty , Eric Baubet
DOI: 10.1111/J.1558-5646.2011.01366.X
关键词: Selection (genetic algorithm) 、 Biology 、 Wild boar 、 Birth date 、 First year of life 、 Population 、 Population ecology 、 Demography 、 Ecology
摘要: Exploitation by humans affects the size and structure of populations. This has evolutionary demographic consequences that have typically being studied independent one another. We here applied a framework recently developed applying quantitative tools from population ecology selection gradient analysis to quantify on trait—birth date— through its association with multiple fitness components. From long-term monitoring (22 years) wild boar (Sus scrofa scrofa) subject markedly increasing hunting pressure, we found birth dates advanced up 12 days throughout study period. During period low there was no detectable selection. However, during high linking breeding probability in first year life date negative, supporting current life-history theory predicting for early births reproduce within adult mortality.
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