Latitudinal variation in growth and survival of juvenile corals in the West and South Pacific
Latitudinal variation in growth and survival of juvenile corals in the West and South Pacific
复制标题
西太平洋和南太平洋幼珊瑚生长和生存的纬度变化
DOI：
10.1007/s00338-021-02169-9
复制
发表时间：
2021
期刊：
影响因子：
3.5
通讯作者：
Tanangonan, Jean J.
中科院分区：
文献类型：
--
作者：
Nozawa, Yoko;Villanueva, Ronald D.;Munasik, Munasik;Roeroe, Kakaskasen Andreas;Mezaki, Takuma;Kawai, Takashi;Guest, James;Arakaki, Seiji;Suzuki, Go;Tanangonan, Jean J.
造礁珊瑚分布在从热带到温带的30°以上纬度地区，它们的栖息地在海水温度和光照条件方面有很大差异。然而，在很大程度上仍然不清楚珊瑚的人口统计在这种环境条件梯度中有何不同。珊瑚生长的变化对珊瑚种群特别重要，因为珊瑚种群的各个方面取决于群体的大小，繁殖力和存活率都随着群体的扩大而增加。在这里，我们测试了年轻珊瑚的年增长率和存活率的纬度变化，使用11个研究地点，从17° S到33° N，在西太平洋和南太平洋。回归分析显示，随着纬度的增加，年增长率显着下降，而没有显着的纬度模式，检测到年生存。海水温度与年生长率呈显著正相关。四个常见属的生长速率各不相同，其大小顺序为鹿角珊瑚属>小孔珊瑚属>滨珊瑚属>川续断属，其中鹿角珊瑚属和小孔珊瑚属的生长速率在纬度上的差异大于滨珊瑚属和川续断属。虽然目前的数据在深度、调查期和地点之间的重复性方面存在局限性，但它们提供的证据表明，在低纬度地区，个体群落的较高生长能力可能促进种群增长，从而促进扰动后的种群恢复。这些趋势可能在Acropora和Pocillopora中发展得最好，它们具有高的菌落生长率。
Reef-building corals are found across > 30° of latitude from tropical to temperate regions, where they occupy habitats greatly differing in seawater temperature and light regimes. It remains largely unknown, however, how the demography of corals differs across this gradient of environmental conditions. Variation in coral growth is especially important to coral populations, because aspects of coral demography are dependent on colony size, with both fecundity and survivorship increasing with larger colonies. Here we tested for latitudinal variation in annual growth rate and survival of juvenile corals, using 11 study locations extending from 17° S to 33° N in the West and South Pacific. Regression analyses revealed a significant decline in annual growth rates with increasing latitude, whereas no significant latitudinal pattern was detected in annual survival. Seawater temperature showed a significant and positive association with annual growth rates. Growth rates varied among the four common genera, allowing them to be rankedAcropora>Pocillopora>Porites>Dipsastraea.AcroporaandPocilloporashowed more variation in growth rates across latitudes thanPoritesandDipsastraea. Although the present data have limitations with regard to difference in depths, survey periods, and replication among locations, they provide evidence that a higher capacity for growth of individual colonies may facilitate population growth, and hence population recovery following disturbances, at lower latitudes. These trends are likely to be best developed inAcroporaandPocillopora, which have high rates of colony growth.
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影响因子：
3.5
作者：
Clinton A. Oakley;G. Schmidt;B. Hopkinson
通讯作者：
B. Hopkinson
影响因子：
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作者：
J. N. Weber;E. White
通讯作者：
J. N. Weber;E. White
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作者：
COLES, SL;JOKIEL, PL
通讯作者：
JOKIEL, PL
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3.5
作者：
Jones, Lewis A.;Mannion, Philip D.;Allison, Peter A.
通讯作者：
Allison, Peter A.
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4.8
作者：
Hall, VR;Hughes, TP
通讯作者：
Hughes, TP