Diminishing returns in habitat restoration by adding biogenic materials: a test using estuarine oysters and recycled oyster shell
Diminishing returns in habitat restoration by adding biogenic materials: a test using estuarine oysters and recycled oyster shell
复制标题
通过添加生物材料减少栖息地恢复的回报：使用河口牡蛎和回收牡蛎壳进行的测试
DOI：
10.1111/rec.13227
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发表时间：
2020
影响因子：
3.2
通讯作者：
White, James W.
中科院分区：
文献类型：
--
作者：
Kimbro, David L.;Stallings, Christopher D.;White, James W.
退化的河口牡蛎礁的恢复通常涉及部署回收牡蛎壳。在河口的低盐度、低捕食区，大量的贝壳部署可以改善水流条件，从而改善牡蛎的生存和生长。还假设恢复的珊瑚礁的物理结构可以抑制牡蛎捕食者在高盐度，高捕食区的觅食。这一假设未经检验。鉴于资源有限，重要的是要确定成功修复需要多少贝壳，以及是否有贝壳增加的回报递减。在阿巴拉契科拉湾，佛罗里达，我们操纵壳量牡蛎礁，创造三个0.4公顷的低（无壳），中等（153 m3壳），高（306 m3壳）的栖息地结构。我们重复的实验和调查超过2年，以确定恢复成功增加与栖息地结构。对牡蛎的捕食在无壳区域比在重新脱壳的珊瑚礁上更大，但在两个重新脱壳的珊瑚礁之间相似。牡蛎幼虫的供应没有不同的珊瑚礁地区，但实验结束时，牡蛎密度（单位面积）增加二次生境结构，高原在高层次的结构。模型选择表明，这些模式的最吝啬的解释是，增加栖息地结构减少捕食和增加整体招聘，但较高的脱壳处理没有更好的结果比中度脱壳。因此，可以通过在单位面积上部署适量的壳体来优化修复。
Restoration of degraded estuarine oyster reefs typically involves deploying recycled oyster shell. In low‐salinity, low‐predation areas of estuaries, high‐volume shell deployments are known to improve flow conditions and thus oyster survival and growth. It is also hypothesized that the physical structure of restored reefs could suppress foraging by oyster predators in high‐salinity, high‐predation zones. That hypothesis is untested. Given limited resources, it is important to determine how much shell is needed for successful restoration and whether there are diminishing returns in shell addition. In Apalachicola Bay, Florida, we manipulated shell volume on an oyster reef to create three 0.4 ha areas of low (no shell addition), moderate (153 m3shell), and high (306 m3shell) habitat structure. We repeated experiments and surveys over 2 years to determine if restoration success increased with habitat structure. Predation on oysters was greater on the non‐shelled area than on the reshelled reefs, but similar between the two reshelled reefs. Oyster larval supply did not differ among the reef areas, but by the end of the experiment, oyster density (per unit area) increased quadratically with habitat structure, plateauing at high levels of structure. Model selection indicated that the most parsimonious explanation for these patterns was that increased habitat structure reduced predation and increased overall recruitment, but that the higher reshelling treatment did not have better outcomes than moderate reshelling. Thus, restoration could be optimized by deploying a moderate amount of shell per unit area.
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影响因子：
2.5
作者：
B. Rothschild;Js Ault;P. Goulletquer;M. Héral
通讯作者：
B. Rothschild;Js Ault;P. Goulletquer;M. Héral
影响因子：
3.7
作者：
Garland HG;Kimbro DL
通讯作者：
Kimbro DL
底栖流动环境影响弗吉尼亚巨牡蛎幼虫向潮间带牡蛎礁的招募
影响因子：
2.5
作者：
Elizabeth R. Whitman;M. Reidenbach
通讯作者：
M. Reidenbach
分散者的搜索成本和栖息地选择
DOI：
--
发表时间：
2005
期刊：
影响因子：
--
作者：
J. Stamps;V. V. Krishnan;M. Reid
通讯作者：
M. Reid
影响因子：
4.8
作者：
Kimbro, David L.
通讯作者：
Kimbro, David L.