DOES EVOLUTION OF ITEROPAROUS AND SEMELPAROUS REPRODUCTION CALL FOR SPATIALLY STRUCTURED SYSTEMS?
DOES EVOLUTION OF ITEROPAROUS AND SEMELPAROUS REPRODUCTION CALL FOR SPATIALLY STRUCTURED SYSTEMS?
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子宫内生殖和子宫内生殖的进化是否需要空间结构化系统？
DOI：
10.1111/j.0014-3820.2000.tb00015.x
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
V. Kaitala
中科院分区：
文献类型：
--
作者：
E. Ranta;D. Tesař;Susanna Alaja;V. Kaitala
在生命史的进化过程中，一个长期存在的问题是在一生中只繁殖一次（半繁殖）和在不同季节重复繁殖（重复繁殖）之间的适应权衡。这个问题可以通过假设一种生殖策略是常驻的（已经进化），并通过询问是否有可能入侵（进化）另一种生殖策略，来形成一个研究议程。对于一个空间非结构化系统，Bulmer（1994）推导出v + PA < 1的关系（PA为成虫存活率，vbS和bS分别为跨种和半种繁殖策略下的子代数），在此关系下，半种种群不会被跨种突变体入侵。当不等式变为v + PA >1时，半胎突变体的入侵是不可能的。从这些不平等中很容易看出，通过进化建立一种新的生殖策略的可能性相当有限。我们将进化场景扩展为一个空间结构系统，在亚单位之间具有分散联系。在这一领域，一个罕见的繁殖策略很容易入侵一个由常驻繁殖策略占主导地位的种群。允许入侵的参数空间在空间结构化的进化场景中要比在空间非结构化的系统中慷慨得多。通讯编辑：D. Roff
Abstract A persistent question in the evolution of life histories is the fitness trade-off between reproducing only once (semelparity) in a lifetime or reproducing repeated times in different seasons (iteroparity). The problem can be formulated into a research agenda by assuming that one reproductive strategy is resident (has already evolved) and by asking whether invasion (evolution) of an alternative reproductive strategy is possible. For a spatially nonstructured system, Bulmer (1994) derived the relationship v + PA < 1 (PA is adult survival; vbS and bS are offspring numbers for iteroparous and semelparous breeding strategies, respectively) at which semelparous population cannot be invaded by an iteroparous mutant. When the inequality is changed to v + PA > 1, invasion of a semelparous mutant is not possible. From the inequalities, it is easy to see that possibilities for evolutionary establishment of a novel reproductive strategy are rather narrow. We extended the evolutionary scenario into a spatially structured system with dispersal linkage among the subunits. In this domain, a rare reproductive strategy can easily invade a population dominated by a resident reproductive strategy. The parameter space enabling invasion is far more generous with spatially structured evolutionary scenarios than in a spatially nonstructured system. Corresponding Editor: D. Roff
不确定的生活：随机环境中的人口统计学。
影响因子：
1.4
作者：
Tuljapurkar,S
通讯作者：
Tuljapurkar,S