Assessing the development of newly created habitat for wintering estuarine birds
Assessing the development of newly created habitat for wintering estuarine birds
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评估越冬河口鸟类新建栖息地的开发
DOI：
10.1016/j.ecss.2007.04.028
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发表时间：
2007
影响因子：
2.8
通讯作者：
Krysia Mazik
中科院分区：
文献类型：
--
作者：
L. Mander;N. Cutts;James H. Allen;Krysia Mazik
海岸挤压一词被用来描述这样一个过程，即在相对海平面上升的地区，坚固的防洪工事限制了河口系统自然反应的能力，从而导致潮间带栖息地的丧失，并可能降低河口系统对鱼类和鸟类种群的承载能力。海岸挤压的过程，加上气候变化的长期影响，产生了在河口创造或恢复潮间带生境的需要。在亨伯河口（英国），据估计，超过700公顷的潮间带栖息地将失去由于海岸挤压和海平面上升，在未来50年。为了解决这一净损失，一个过程被称为“管理调整”已被用作河口栖息地管理工具，其中部分防洪被移到内陆，以创建或恢复潮间带栖息地，并抵消潜在的损失承载能力。在亨伯河上，船体以东的保罗·霍姆流浪地是河口第一个投入运营的有管理的重新调整地点。2003年9月，Paull Holme Strays的遗址被破坏，创造了大约80公顷的潮间带栖息地。为了评估的发展水鸟组合在保罗霍姆流浪网站，并最终成功的栖息地创建技术，每月进行鸟类调查，在新创建的栖息地和泥滩面对管理重新调整网站。鸟类区系的使用数据的分析表明，在3年的创建，新的潮间带栖息地能够支持在低水位，功能水鸟组合的组成类似的相邻现有的潮间带地区。在PaulHolme Stray，这是在几乎没有持续管理新栖息地的情况下实现的。
The term coastal squeeze has been used to describe the process whereby hard flood defences in areas subjected to relative sea level rise constrain the ability of an estuarine system to respond naturally, thus leading to a loss of intertidal habitat, with an associated potential reduction in the carrying capacity of the estuarine system for fish and bird populations. The process of coastal squeeze, coupled with the long-term effects of climate change, has generated the need to create or restore intertidal habitats in estuaries. In Humber Estuary (UK) it is estimated that over 700 hectares of intertidal habitat will be lost due to coastal squeeze and rising sea levels over the next 50 years. In order to address this net loss, a process known as ‘managed realignment’ has been employed as an estuarine habitat management tool, whereby sections of flood defences are moved inland to create or restore intertidal habitat and offset potential losses in carrying capacity. On the Humber, the Paull Holme Strays site, to the east of Hull, has been the first managed realignment site on the estuary to become operational. The site at Paull Holme Strays was breached in September 2003 creating approximately 80 hectares of intertidal habitat. In order to assess the development of the waterbird assemblage at the Paull Holme Strays site, and ultimately the success of the habitat creation technique, monthly ornithological surveys were undertaken in the newly created habitat and on the mudflat fronting the managed realignment site. The analysis of avifaunal usage data at Paull Holme Strays has demonstrated that within 3 years of creation, the new intertidal habitat is capable of supporting at low water, a functional waterbird assemblage of similar composition to that of adjacent existing intertidal areas. At Paull Holme Strays, this has been achieved with little ongoing management of new habitats.