A simulation model of the population dynamics of the branching coral Acropora palmata -: Effects of storm intensity and frequency
A simulation model of the population dynamics of the branching coral Acropora palmata -: Effects of storm intensity and frequency
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DOI：
10.1016/s0304-3800(02)00346-0
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发表时间：
2003-03-15
影响因子：
3.1
通讯作者：
Lirman, D
中科院分区：
文献类型：
--
作者：
Lirman, D
一个基于阶段的模型，以预测风暴强度珊瑚鹿角珊瑚的影响。用于参数化模型的数据从A.北方佛罗里达珊瑚礁区27个月内经历了3次风暴，风暴强度是影响棕榄种群生存的重要因素。palmata种群在一场暴风雨之后，A。掌状珊瑚群在数量上以碎屑和结壳为主。生物量从生存率高的单位（即菌落）转移到死亡率较高的单位（即碎片和结壳），可能会影响受干扰种群的恢复和长期生存。然而，该模型表明，A.帕尔玛塔仍然可以从周期性的风暴中受益。当性募集是有限的或零星的，风暴碎片化，其次是碎片生存和增长可能是唯一的机制，可为A。风暴频率也会影响棕榈叶甲的存活率。掌形的当风暴每隔15年发生一次时，在连续10次风暴之后，殖民地的丰度会缓慢增加。当风暴频率增加到5年一遇时，10次风暴后殖民地的丰度可以增加5倍。然而，随着风暴频率的进一步增加（每两年一次风暴），A。可出现掌形菌落。(C)2002 Elsevier Science B.V.保留所有权利。
A stage-based model was developed to predict the effects of storm intensity coral Acropora palmata. The data used to parameterize the model were obtained from an A. palmata population in the northern Florida Reef Tract that experienced three storms in 27 months.Storm intensity is a significant factor influencing the survivorship of A. palmata populations. After a severe storm, A. palmata populations can be numerically dominated by fragments and crusts. The shift in biomass from units with high survivorship (i.e. colonies) to units with higher mortality probabilities (i.e. fragments and crusts) can affect the recovery and long-term survivorship of disturbed populations. However, the model suggests that A. palmata still can benefit from periodic storms. When sexual recruitment is limited or sporadic, storm fragmentation followed by fragment survivorship and growth may be the only mechanism available for A. palmata to propagate.Storm frequency can also affect the survivorship of A. palmata. When storms occur at 15-year intervals, a slow increase in the abundance of colonies can take place after 10 consecutive storms. When storm frequency increases to 5 years, the abundance of colonies can increase five-fold after 10 storms. However, as storm frequency increases further (one storm every 2 years) a steady decline in the abundance of A. palmata colonies can occur. (C) 2002 Elsevier Science B.V. All rights reserved.