Non-native gastropods in high elevation horticultural facilities in Hawaii: a threat to native biodiversity
Non-native gastropods in high elevation horticultural facilities in Hawaii: a threat to native biodiversity
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夏威夷高海拔园艺设施中的非本地腹足动物：对本地生物多样性的威胁
DOI：
10.1007/s10530-019-01916-y
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发表时间：
2019
影响因子：
2.9
通讯作者：
Cowie, Robert H.
中科院分区：
文献类型：
--
作者：
Yeung, Norine W.;Meyer, Wallace M.;Hayes, Kenneth A.;Kim, Jaynee R.;Skelton, Travis J.;Cowie, Robert H.
为了保护热带海洋岛屿的原生动植物群，必须限制陆生非原生腹足类（即蜗牛，包括蛞蝓）的定居，特别是来自温带地区的腹足类，因为它们在高海拔地区可能变得丰富，而高海拔地区往往是原生物种的最后避难所。在夏威夷，园艺贸易与许多引种有关，但尚未评估高海拔苗圃造成的威胁。为了研究这些潜在的威胁，我们调查了腹足类在21个高海拔（> 500米）的园艺/农业设施的三个夏威夷群岛（奥克尼，毛伊岛和夏威夷），并将这些调查31个以前的低海拔苗圃调查（< 500米）在同一岛屿。高海拔苗圃窝藏不同的非本地腹足类组合，主要由来自温带地区的物种。温带地区的腹足类在苗圃中的海拔范围比热带地区的大。我们的研究结果强调，苗圃，特别是那些在高海拔地区，是建立温带腹足类动物的关键来源，对剩余的夏威夷生物多样性的严重威胁。我们还发现，毛伊岛和夏威夷的高海拔苗圃支持非本地物种没有发现在橡树苗圃，表明橡树可能不是唯一的来源，引进到高海拔苗圃。我们希望这些结果将刺激对苗圃中非本地腹足类的积极控制，特别是那些高海拔的，以潜在地防止对已经处于危险之中的夏威夷植物群和动物群的进一步生态破坏。
To preserve native floras and faunas of tropical oceanic islands, it is critical to limit the establishment of terrestrial non-native gastropods (i.e. snails, including slugs), particularly those from temperate regions, as they can become abundant in high elevation areas, often the last refuges of native species. In Hawaii, the horticultural trade has been associated with many introductions, but threats posed by nurseries at high elevations have not been assessed. To examine these potential threats, we surveyed gastropods in 21 high elevation (> 500 m) horticultural/agricultural facilities on three Hawaiian Islands (Oahu, Maui and Hawaii) and compared these surveys to 31 previous low elevation nursery surveys (< 500 m) on the same islands. High elevation nurseries harbored distinct non-native gastropod assemblages, which were composed primarily of species from temperate regions. Gastropods from temperate regions had larger elevation ranges in nurseries than those from tropical areas. Our results highlight that nurseries, particularly those at higher elevations, represent key sources for establishment of temperate gastropods, a critical threat to the remaining Hawaiian biodiversity. We also found that high elevation nurseries on Maui and Hawaii supported non-native species not found in Oahu nurseries, indicating that Oahu may not be the only source of introductions into high elevation nurseries. We hope these results will spur active control of non-native gastropods in nurseries, particularly those at higher elevations, to potentially prevent further ecological damage to the already imperiled Hawaiian flora and fauna.
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影响因子：
2.9
作者：
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影响因子：
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影响因子：
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作者：
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通讯作者：
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DOI：
10.4002/040.053.0106
发表时间：
2010
影响因子：
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作者：
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影响因子：
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通讯作者：
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