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首页> 外文期刊>Wetlands Ecology and Management >Palatability of salt marsh forbs and grasses to the purple marsh crab (Sesarma reticulatum) and the potential for re-vegetation of herbivory-induced salt marsh dieback areas in cape cod (Massachusetts, USA)
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Palatability of salt marsh forbs and grasses to the purple marsh crab (Sesarma reticulatum) and the potential for re-vegetation of herbivory-induced salt marsh dieback areas in cape cod (Massachusetts, USA)

机译：盐沼的前茅和草对紫色沼泽蟹（Sesarma reticulatum）的适食性以及鳕鱼角食草动物引起的盐沼枯萎地区的重新植被的潜力（美国麻萨诸塞州）

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摘要

Intense herbivory by a growing population of intertidal burrowing crabs Sesarma reticulatum (purple marsh crabs) has denuded large areas of salt marsh on Cape Cod (Massachusetts, USA). Spartina alterniflora (smooth cordgrass) and, to a lesser extent, S. patens (salt marsh hay) have been the primary taxa affected while halophytic forb populations of Salicornia spp. (pickleweed), Suaeda maritima (sea-blite), and Limonium carolinianum (sea lavender), that normally constitute a relatively low proportion of marsh vegetation, have remained intact. In addition, these forb species appear to be colonizing some of the marsh grass dieback areas. Because the loss of vegetation results in considerable subsidence and erosion, the objective of this study was to (1) confirm whether certain taxa are unpalatable to S. reticulatum and (2) determine whether unpalatable species could be used to re-vegetate dieback areas as an interim measure to control marsh sediment and elevation loss. The results suggest that S. reticulatum prefers Spartina alterniflora over forbs and that one or all of these forb species are good candidates for vegetation restoration in dieback areas.
机译：潮间带挖洞蟹的数量不断增长，引起了强烈的食草现象Sesarma reticulatum（紫色沼泽蟹）剥夺了科德角（美国马萨诸塞州）上大片的盐沼。互花米草（光滑的草皮草）和S. patens（盐沼干草）（在较小程度上）已成为主要的分类单元，而盐生的Sallicornia spp种群则受到影响。 （杂草），Suaeda maritima（海藻）和Limonium carolinianum（海薰衣草）（通常占沼泽植被的比例相对较低）仍然完好无损。此外，这些福布斯物种似乎在某些沼泽草枯萎地区定居。由于植被的丧失会导致大量的塌陷和侵蚀，因此本研究的目的是（1）确认某些分类单元是否不适合网纹葡萄菌（2）确定是否可以将难吃的物种用于重新植被的枯萎地区。控制沼泽沉积物和高程损失的临时措施。结果表明，网纹葡萄球菌比互花米草更喜欢互花米草，并且这些forb物种中的一种或全部是在枯萎地区恢复植被的良好候选者。

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