Linklater Wayne Leslie, Law Peter Roy, Gedir Jay Vinson, du Preez Pierre
Centre for Biodiversity and Restoration Ecology, School of Biological Sciences, Victoria University of Wellington 6021, Wellington, New Zealand.
Centre for African Conservation Ecology, Department of Zoology, Nelson Mandela Metropolitan University, Port Elizabeth 6031, South Africa.
Nat Ecol Evol. 2017 Mar 6;1(4):88. doi: 10.1038/s41559-017-0088.
First principles predict negative frequency-dependent sex allocation, but it is unproven in field studies and seldom considered, despite far-reaching consequences for theory and practice in population genetics and dynamics as well as animal ecology and behaviour. Twenty-four years of rhinoceros calving after 45 reintroductions across southern Africa provide the first in situ experimental evidence that unbalanced operational sex ratios predicted offspring sex and offspring sex ratios. Our understanding of population dynamics, especially reintroduction and invasion biology, will be significantly impacted by these findings.
第一性原理预测了负频率依赖性性别分配，但在实地研究中尚未得到证实，也很少被考虑，尽管这对群体遗传学和动态学以及动物生态学和行为学的理论与实践有着深远影响。在非洲南部进行的45次犀牛再引入后的24年犀牛产仔情况，提供了首个实地实验证据，即不平衡的操作性别比可预测后代性别和后代性别比。这些发现将对我们对种群动态的理解，尤其是再引入和入侵生物学的理解产生重大影响。
