• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Ecology and Evolution >Invasive species removal increases species and phylogenetic diversity of wetland plant communities
【2h】

Invasive species removal increases species and phylogenetic diversity of wetland plant communities

机译：入侵物种的去除增加了湿地植物群落的物种和系统发育多样性

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Plant invasions result in biodiversity losses and altered ecological functions, though quantifying loss of multiple ecosystem functions presents a research challenge. Plant phylogenetic diversity correlates with a range of ecosystem functions and can be used as a proxy for ecosystem multifunctionality. Laurentian Great Lakes coastal wetlands are ideal systems for testing invasive species management effects because they support diverse biological communities, provide numerous ecosystem services, and are increasingly dominated by invasive macrophytes. Invasive cattails are among the most widespread and abundant of these taxa. We conducted a three‐year study in two Great Lakes wetlands, testing the effects of a gradient of cattail removal intensities (mowing, harvest, complete biomass removal) within two vegetation zones (emergent marsh and wet meadow) on plant taxonomic and phylogenetic diversity. To evaluate native plant recovery potential, we paired this with a seed bank emergence study that quantified diversity metrics in each zone under experimentally manipulated hydroperiods. Pretreatment, we found that wetland zones had distinct plant community composition. Wet meadow seed banks had greater taxonomic and phylogenetic diversity than emergent marsh seed banks, and high‐water treatments tended to inhibit diversity by reducing germination. Aboveground harvesting of cattails and their litter increased phylogenetic diversity and species richness in both zones, more than doubling richness compared to unmanipulated controls. In the wet meadow, harvesting shifted the community toward an early successional state, favoring seed bank germination from early seral species, whereas emergent marsh complete removal treatments shifted the community toward an aquatic condition, favoring floating‐leaved plants. Removing cattails and their litter increased taxonomic and phylogenetic diversity across water levels, a key environmental gradient, thereby potentially increasing the multifunctionality of these ecosystems. Killing invasive wetland macrophytes but leaving their biomass in situ does not address their underlying mechanism of dominance and is less effective than more intensive treatments that also remove their litter.
机译：植物入侵导致生物多样性丧失和生态功能改变，尽管量化多种生态系统功能的丧失提出了研究挑战。植物系统发育多样性与一系列生态系统功能相关，可以用作生态系统多功能性的代理。 Laurentian大湖沿岸湿地是测试入侵物种管理效果的理想系统，因为它们支持多样化的生物群落，提供大量的生态系统服务，并且日益受到入侵的大型植物的控制。外来香蒲是这些种类中最广泛和最丰富的一种。我们在两个大湖湿地进行了为期三年的研究，测试了两个植被区（新生沼泽和湿地草甸）中香蒲去除强度（割草，收获，完全去除生物量）梯度对植物分类学和系统发育多样性的影响。为了评估原生植物的恢复潜力，我们将其与种子库萌发研究配对，该研究量化了在实验控制的水周期下每个区域的多样性指标。预处理后，我们发现湿地带具有独特的植物群落组成。湿草甸种子库比新兴的沼泽种子库具有更大的分类学和系统发育多样性，高水处理往往通过减少发芽来抑制多样性。香蒲及其凋落物的地上收获增加了两个区域的系统发育多样性和物种丰富度，与未操纵的对照相比，丰富度增加了一倍以上。在潮湿的草地上，收割使社区转变为早期的演替状态，有利于早期种草物种的种子库萌发，而新兴的沼泽完全清除处理使社区转变为水生条件，从而有利于浮叶植物。去除香蒲和它们的凋落物会增加整个水位（主要的环境梯度）的分类学和系统发育多样性，从而潜在地增加了这些生态系统的多功能性。杀死入侵的湿地大型植物但将其生物量留在原地，并不能解决其潜在的优势机制，并且比也清除其凋落物的更密集的治疗效果不佳。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号