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首页> 外文期刊>Conservation Biology >Ants as a measure of effectiveness of habitat conservation planning in southern california
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Ants as a measure of effectiveness of habitat conservation planning in southern california

机译：蚂蚁作为加利福尼亚南部栖息地保护规划有效性的衡量标准

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In the United States multispecies habitat conservation plans were meant to be the solution to conflicts between economic development and protection of biological diversity. Although now widely applied, questions exist concerning the scientific credibility of the conservation planning process and effectiveness of the plans. We used ants to assess performance of one of the first regional conservation plans developed in the United States, the Orange County Central-Coastal Natural Community Conservation Plan (NCCP), in meeting its broader conservation objectives of biodiversity and ecosystem-level protection. We collected pitfall data on ants for over 3 years on 172 sites established across a network of conservation lands in coastal southern California. Although recovered native ant diversity for the study area was high, site-occupancy models indicated the invasive and ecologically disruptive Argentine ant (Linepithema humile.) was present at 29% of sites, and sites located within 200 m of urban and agricultural areas were more likely to have been invaded. Within invaded sites, native ants were largely displaced, and their median species richness declined by more than 60% compared with uninvaded sites. At the time of planning, 24% of the 15,133-ha reserve system established by Orange County NCCP fell within 200 m of an urban or agricultural edge. With complete build out of lands surrounding the reserve, the proportion of the reserve system vulnerable to invasion will grow to 44%. Our data indicate that simply protecting designated areas from development is not enough. If habitat conservation plans are to fulfill their conservation promise of ecosystem-level protection, a more-integrated and systematic approach to the process of habitat conservation planning is needed. Journal compilation. No claim to original US government works.
机译：在美国，多物种栖息地保护计划旨在解决经济发展与保护生物多样性之间的冲突。尽管现在已被广泛应用，但有关保护计划过程的科学可信度和计划有效性的问题仍然存在。我们使用蚂蚁来评估美国制定的第一个区域性保护计划（奥兰治县中部沿海自然社区保护计划（NCCP））的绩效，以实现其更广泛的生物多样性和生态系统保护目标。我们在加利福尼亚南部沿海保护地网络上建立的172个站点上收集了3年以上蚂蚁的陷阱数据。尽管研究区域恢复的本地蚂蚁多样性很高，但据定居点模型显示，有入侵性和生态破坏性的阿根廷蚂蚁（Linepithema humile。）存在于29％的地点，而位于城市和农业区200 m以内的地点更多可能已经被入侵了。在被入侵的地点内，本地蚂蚁大量流离失所，与未入侵的地点相比，它们的中位物种丰富度下降了60％以上。在规划时，橙县NCCP建立的15133公顷保护区中有24％位于城市或农业边缘200 m以内。随着保护区周围土地的完全建设，脆弱的保护区系统所占比例将增长到44％。我们的数据表明仅保护指定区域免受开发是不够的。如果栖息地保护计划要履行其对生态系统级保护的保护承诺，则需要一种更加综合和系统的方法来进行栖息地保护计划。期刊编辑。不要求美国政府原创作品。

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