Mire ontogeny, environmental and climatic change inferred from fossil beetle successions from Hatfield Moors, eastern England
Mire ontogeny, environmental and climatic change inferred from fossil beetle successions from Hatfield Moors, eastern England
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从英格兰东部哈特菲尔德沼泽的甲虫化石演替推断出泥沼个体发育、环境和气候变化
DOI：
10.1191/0959683604hl691rp
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
N. Whitehouse
中科院分区：
文献类型：
--
作者：
N. Whitehouse
展示了来自英格兰亨伯海德莱尔斯哈特菲尔德沼泽沼泽边缘序列的鞘翅目（甲虫）动物群化石结果。讨论了从该位置和其他位置推断的泥沼个体发育，特别是根据以前的孢粉学和植物大化石研究。大部分地点的泥炭起始温度都在 3000 cal 左右。公元前，以 Calluna-Eriophorum 荒地和白桦松林地为特征。该地点南缘泥炭堆积的开始被推迟到 1520-1390 年。公元前 1610-1440 年的花粉位点 (HAT 2) 似乎与重现表面紧密重叠。 bc，这表明此时地表湿度的增加可能导致了泥沼的扩张。这些动物区系说明了从富营养性和中营养性沼泽到反光营养性隆起泥沼的转变，尽管松属和马蹄莲指示物种在整个序列中的重要性表明石南栖息地可能仍然很重要。在其他地方，缺乏这种早期阶段的丰富沼泽，中营养泥沼在营养贫乏的沙子上方立即发育，不久之后就出现了暗营养条件。对动物区系的对应分析为了解哈特菲尔德荒原沙质石南栖息地的重要性提供了宝贵的见解。底层覆盖沙的持续影响表明，这些可能在泥沼个体发育中发挥了重要作用。该研究强调了使用鞘翅目来评估泥炭个体发育、场地水文波动和植被覆盖的有用性，特别是与其他泥炭地替代物结合使用时。参考森林历史和气候变化讨论了一系列灭绝的甲虫物种的重要性。
Results of a fossil Coleoptera (beetle) fauna from a fen edge sequence from Hatfield Moors, Humber-head Levels, England, are presented. Mire ontogeny inferred from this location and others are discussed, particularly in the light of previous palynological and plant macrofossil investigations. Peat initiation across most of the site centres around 3000 cal. bc, characterized by a Calluna-Eriophorum heath with areas of PinusBetula woodland. The onset of peat accumulation on the southern margins of the site was delayed until 1520– 1390 cal. bc and appears to overlap closely with a recurrence surface at a pollen site (HAT 2) dated to 1610– 1440 cal. bc, suggesting that increased surface wetness may have caused mire expansion at this time. The faunas illustrate the transition from eutrophic and mesotrophic fen to ombrotrophic raised mire, although the significance of both Pinus- and Calluna-indicating species through the sequence suggests that heath habitats may have continued to be important. Elsewhere, this earlier phase of rich fen is lacking and mesotrophic mire developed immediately above nutrient-poor sands, with ombrotrophic conditions indicated soon after. Correspondence analysis of the faunas provides valuable insights into the importance of sandy heath habitats on Hatfield Moors. The continuing influence of the underlying coversands suggests these may have been instrumental in mire ontogeny. The research highlights the usefulness of using Coleoptera to assess mire ontogeny, fluctuations in site hydrology and vegetation cover, particularly when used in conjunction with other peatland proxies. The significance of a suite of extinct beetle species is discussed with reference to forest history and climatic change.