COMMUNITY STABILITY, COMPLEXITY AND SPECIES LIFE-HISTORY STRATEGIES
COMMUNITY STABILITY, COMPLEXITY AND SPECIES LIFE-HISTORY STRATEGIES
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DOI：
10.1007/bf00120678
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发表时间：
1982-01-01
期刊：
影响因子：
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通讯作者：
REJMANEK, M
中科院分区：
文献类型：
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作者：
LEPS, J;OSBORNOVAKOSINOVA, J;REJMANEK, M
阐明了传统生态复杂性-稳定性假说与近年来理论研究结果矛盾的实质。强调了恢复力和抵抗力之间的区别。讨论了May's模型在野外验证的可能性。植物群落中的连接度和平均相互作用强度至今还没有一个令人满意的估计方法，这些参数与真实的群落稳定性的关系仍是一个悬而未决的问题。在纯粹竞争的模型社区中，连接性和稳定性（弹性）之间的关系比梅规则预测的要复杂得多。当连通性达到一定值时，稳定性随连通性的增加而增加。研究表明，在旱生生境的演替过程中，植物群落的物种多样性与植物群落的抗性呈正相关，与植物群落的恢复力呈负相关。物种多样性与这两种稳定性之间没有因果关系。植物群落的抵抗力和恢复力主要取决于组成物种的生活史策略。这些结果可以用格里姆斯的生活史策略来解释，并暗示了格里森的以种群为中心的群落现象解释的有效性。
The essence of the contradiction between traditional ecological complexity-stability hypothesis and recent theoretical results is clarified. The distinction between resilience and resistance is stressed. The possibilities of field verification of May''s model are discussed. No satisfactory method for estimation of connectance and mean interaction strength in plant communities has been found. Relation between these parameters and stability in real communities remains an open question. The relation between connectance and stability (resilience) in purely competitive model communities is more complicated than May''s rule predicts. The certain value of connectance having been achieved, stability increases with increasing connectance. The positive relation between species diversity and resistance, and negative relation between species diversity and resilience in plant communities during old-field succession in xeric habitat was assessed. There is no causal relationship between species diversity and both kinds of stability. Resistance and resilience of the plant communities studied were determined primarily by life history strategies of constituent species. The results are interpreted in terms of Grimes'' life history strategies and imply the validity of Gleasonian, population-centered explanation of community phenomena.