Purple pitcher plant (Sarracenia rosea) Dieback and partial community disassembly following experimental storm surge in a coastal pitcher plant bog.
Purple pitcher plant (Sarracenia rosea) Dieback and partial community disassembly following experimental storm surge in a coastal pitcher plant bog.
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紫色的投手植物（sarracenia rosea）死于沿海投手植物沼泽实验性风暴潮后的倒退和部分社区拆卸。
DOI：
10.1371/journal.pone.0125475
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发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
Battaglia LL
中科院分区：
文献类型：
--
作者：
Abbott MJ;Battaglia LL
与气候变化相关的海平面上升和频繁的强烈飓风将导致内陆系统（例如海湾沿海猪笼草沼泽）因风暴潮而经常发生洪水。这些浪涌可以将盐水和沉积物输送到淡水沼泽，极大地影响其生物完整性。紫色猪笼草（Sarracenia rosea）是墨西哥湾沿岸的猪笼草沼泽居民，在这种情况下可能处于不利地位，因为它们的猪笼草形态可能使它们在浪涌后容易收集盐水和沉积物。研究了风暴潮水盐度和沉积物类型对S. rosea活力，植物群落结构，和沼泽土-水电导率。小区（含≥1个分株的S. rosea）实验性地用淡水或盐水与三种沉积物类型（本地、外来或无沉积物）中的一种混合淹没。没有处理影响土壤-水电导率;然而，直接暴露于盐水导致显着降低S。rosea覆盖，直到下一个赛季时，规定的火灾和区域干旱的下降，所有的S。几乎覆盖率为零。随着时间的推移，处理之间的植物群落结构也有显着差异，反映了许多物种的丰度增加，少数物种的丰度减少。然而，与S. rosea，群落中的大多数其他物种似乎对风暴潮的影响有弹性。因此，尽管群落可能会受到风暴潮的影响，但那些对风暴潮干扰特别敏感的少数物种可能会退出群落，被更具适应力的物种所取代。根据这些生物遗产的寿命，如果海湾沿岸猪笼草沼泽因气候变化而更频繁地暴露于风暴潮，它们可能无法完全恢复。
Sea-level rise and frequent intense hurricanes associated with climate change will result in recurrent flooding of inland systems such as Gulf Coastal pitcher plant bogs by storm surges. These surges can transport salt water and sediment to freshwater bogs, greatly affecting their biological integrity. Purple pitcher plants (Sarracenia rosea) are Gulf Coast pitcher plant bog inhabitants that could be at a disadvantage under this scenario because their pitcher morphology may leave them prone to collection of saline water and sediment after a surge. We investigated the effects of storm surge water salinity and sediment type on S. rosea vitality, plant community structure, and bog soil-water conductivity. Plots (containing ≥1 ramet of S. rosea) were experimentally flooded with fresh or saline water crossed with one of three sediment types (local, foreign, or no sediment). There were no treatment effects on soil-water conductivity; nevertheless, direct exposure to saline water resulted in significantly lower S. rosea cover until the following season when a prescribed fire and regional drought contributed to the decline of all the S. rosea to near zero percent cover. There were also significant differences in plant community structure between treatments over time, reflecting how numerous species increased in abundance and a few species decreased in abundance. However, in contrast to S. rosea, most of the other species in the community appeared resilient to the effects of storm surge. Thus, although the community may be somewhat affected by storm surge, those few species that are particularly sensitive to the storm surge disturbance will likely drop out of the community and be replaced by more resilient species. Depending on the longevity of these biological legacies, Gulf Coastal pitcher plant bogs may be incapable of fully recovering if they become exposed to storm surge more frequently due to climate change.
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影响因子：
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