CAJ | 학술논문

这篇论文主要分析了栖息地永久性破坏过程中幸存物种竞争序的变化.通过严格的数学证明,获得了引起竞争序变化的栖息地破坏比例的临界值.灭绝物种的数量和幸存物种的生态序变化有明显的关系:当最后一个灭绝的物种的序号为偶数时,随着栖息地永久性破坏的比例增加时,在全局稳定状态下,所有幸存的偶数序物种最终将成为强竞争力的物种;而当最后一个灭绝的物种的序号为奇数时,随着栖息地永久性破坏的比例增加时,在全局稳定状态下,则所有幸存的奇数序物种最终将成为强竞争力的物种.这个结论不同于以往相关的研究.此外,本文还进一步扩展了Klausmeier有关集合群落中任意一个物种丰富度函数的研究.根据Klausmeier的研究,当栖息地破坏比例小于竞争力最强物种稳定的丰富度时任意一个物种丰富度的分析性表达式已被获得.本文通过数学证明得到了当栖息地破坏比例大于竞争力最强物种稳定的丰富度时任意一个物种丰富度的分析性表达式.该结论完整地解释了Tilman等提出的如果物种死亡率相同竞争力强的物种将更加丰富的假设中幸存物种生态序变化的规律,而Tilman等提出的其它三种假设中幸存物种生态序变化的规律按照相似方法同样可以得到.
저편논문주요분석료서식지영구성파배과정중행존물충경쟁서적변화.통과엄격적수학증명,획득료인기경쟁서변화적서식지파배비례적림계치.멸절물충적수량화행존물충적생태서변화유명현적관계:당최후일개멸절적물충적서호위우수시,수착서식지영구성파배적비례증가시,재전국은정상태하,소유행존적우수서물충최종장성위강경쟁력적물충;이당최후일개멸절적물충적서호위기수시,수착서식지영구성파배적비례증가시,재전국은정상태하,칙소유행존적기수서물충최종장성위강경쟁력적물충.저개결론불동우이왕상관적연구.차외,본문환진일보확전료Klausmeier유관집합군락중임의일개물충봉부도함수적연구.근거Klausmeier적연구,당서식지파배비례소우경쟁력최강물충은정적봉부도시임의일개물충봉부도적분석성표체식이피획득.본문통과수학증명득도료당서식지파배비례대우경쟁력최강물충은정적봉부도시임의일개물충봉부도적분석성표체식.해결론완정지해석료Tilman등제출적여과물충사망솔상동경쟁력강적물충장경가봉부적가설중행존물충생태서변화적규률,이Tilman등제출적기타삼충가설중행존물충생태서변화적규률안조상사방법동양가이득도.
This paper mainly analyzes the competitive rank of persisting species during habitat destruction. The critical proportions of permanently destroyed sites which lead to the change of the competitive rank are obtained by mathematical analysis. We find there is a relationship between the number of extinct species and the competitive rank of petering species: if the competitive rank of the last extinct species is an even number, the persisting even-ranked species are more abundant in equilibrium state; if it is an odd number, the persisting odd-ranked species are more abundant in equilibrium state. This conclusion is different from the previous research of Lin. Moreover, this paper extends Klausmeier′s study on the equilibrial abundance of any species in a multispecies metacommunity. According to Klausmeier's study, the abundance function is obtained when the proportion of habitat destruction is less than the equilibrial abundance of the best competitor. Here we obtain the abundance function when the proportion of habitat destruction is more than the equilibrial abundance of the best competitor. The results thoroughly explain the change of the ecological order of persisting species during habitat destruction for the case of best competitors most abundant and equal mortality proposed by Tilman et al.. The change of the ecological order for the other cases proposed by Tilman et al. can be also solved in the comparable manner.