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首页> 外文会议>Annual Conference on Ecosystems Restoration and Creation; 200410; Tampa,FL(US) >IMPACT OF WILDFIRE ON WETLAND AND UPLAND HABITATS RESTORED FROM INVASION OF MELALEUCA QUINQUINERVJA
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IMPACT OF WILDFIRE ON WETLAND AND UPLAND HABITATS RESTORED FROM INVASION OF MELALEUCA QUINQUINERVJA

机译：威尔弗雷尔对入侵麦拉努卡·奎因奎纳尔维娅而恢复的湿地和高地生境的影响

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摘要

Florida Gulf University opened in 1997 on a 760 acre site in Lee County, Florida. Over 400 acres of the campus are wetland or upland preserves. The preserve areas are an ongoing restoration project focusing on removal of the invasive exotic Melaleuca quinquenervia. Restoration approaches vary from hand removal and herbicide application in areas of low infestation with significant native vegetation remaining, to areas of complete infestation requiring total biomass removal and replanting of native vegetation. Both introduced biological control agents, the snout weevil (Oxyops vitiosa) and the psyllid fly (Boreioglycaspis melaleucae) are present on campus and appear to be effectively reducing seed crops. In May 2004 a wildfire burned approximately 300 acres of the south and east sides of campus. We established transects through four severely burned areas: 1) a wetland/upland ecotone with low infestation; 2) a wetland with high infestation; 3) a restored wetland with previously high infestation that had been replanted following exotic removal, and 4) a restored wetland/upland ecotone with mature native vegetation remaining after exotic removal. We report on the variations in severity of fire impacts, recovery of native vegetation, reinvasion of exotics, and re-establishment of biological control agents during the first four months of recovery. This is a unique opportunity to investigate the effect of intense fire on Melaleuca quinquenervia invaded lands following establishment of biological control agents and on the succession of restored habitats.
机译：佛罗里达海湾大学于1997年在佛罗里达州利县的760英亩土地上开业。校园超过400英亩是湿地或高地保护区。该保护区是一个正在进行的修复项目，着重于清除外来入侵的千层金龟子。恢复的方法从在自然虫害少的低度侵染地区的人工除草和除草剂的使用到需要完全清除生物量并重新种植自然植被的完全虫害的地区不等。两种引入的生物防治剂，鼻象鼻虫（Oxyops vitiosa）和木虱蝇（Boreioglycaspis melaleucae）都存在于校园中，似乎有效地减少了种子作物。 2004年5月，一场野火烧毁了校园南侧和东侧约300英亩。我们通过四个严重烧毁的地区建立了样带：1）湿地/高地过渡带，侵扰率低； 2）湿地高发； 3）经过恢复的湿地/高地过渡带，恢复了以前具有高侵害性的湿地，而该湿地/高地过渡带在去除外来植物后仍保留了成熟的原生植被。我们报告了在恢复的前四个月中火灾影响的严重性，原生植被的恢复，外来植物的入侵以及生物防治剂的重建等变化。这是一个独特的机会，可在建立生物防治剂后以及研究恢复生境的过程中，研究烈火对金叶菊入侵土地的影响。

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