On the width of hybrid zones

On the width of hybrid zones
复制标题

关于混合区的宽度

DOI:
10.1016/j.spa.2006.05.017
复制
发表时间:
2007
影响因子:
1.4
通讯作者:
Iljana Zähle
Iljana Zähle
中科院分区:
数学3区
文献类型:
--
作者:
R. Durrett;Iljana Zähle

文献摘要

被引文献

相似文献

当两个物种被发现非常接近并且发生杂交,但物种的特征仍然不同时,就会出现杂交区。这些系统已经在生物学文献中使用偏微分方程模型进行了处理。在这里,我们研究了一个随机空间模型,并证明了存在一个平稳的分布,代表混合区的平衡。我们计算了混合区的宽度,仅在d≥3维时与PDE公式一致。我们的研究结果也提供了深入了解斑块环境中的混合区的属性。
Hybrid zones occur when two species are found in close proximity and interbreeding occurs, but the species’ characteristics remain distinct. These systems have been treated in the biology literature using partial differential equations models. Here we investigate a stochastic spatial model and prove the existence of a stationary distribution that represents the hybrid zone in equilibrium. We calculate the width of the hybrid zone, which agrees with the PDE formula only in dimensions d≥3. Our results also give insight into properties of hybrid zones in patchy environments.