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From a Bird to a Biome: Exploring the Sage Grouse Initiative's Role in Defending and Growing Sagebrush Core Areas 从鸟类到生物群落:探索鼠尾草行动在保护和发展鼠尾草核心区中的作用
IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Pub Date : 2024-10-15 DOI: 10.1016/j.rama.2024.08.015
David E. Naugle , Jeremy D. Maestas , Scott L. Morford , Joseph T. Smith , Kristopher R. Mueller , Timothy Griffiths , Thad Heater
The Sage Grouse Initiative (SGI) administered by the Natural Resources Conservation Service (NRCS) has served as a primary delivery mechanism for Farm Bill investments in voluntary conservation of private rangelands in the western U.S. for fifteen years. Consistent with interagency efforts to extend conservation beyond sage-grouse to the entire sagebrush biome, the SGI has evolved to focus on conservation actions that benefit wildlife by addressing complex ecosystem problems undermining the resilience of working lands. Recent development of the Sagebrush Conservation Design (SCD) provides a common framework to coordinate the efforts of many partners invested in saving the biome's last remaining intact sagebrush ecosystems. In this forum paper, we explore the history of the SGI's strategic conservation on private lands relative to the SCD and reflect on how it could be used to improve future conservation delivery. From 2010 to 2022, NRCS contributed $423USD million in Farm Bill funds through SGI to easements, conifer removal, and invasive annual grass management with the shared goal of defending and growing Core, with most SGI actions occurring in Core (6–14%) and Growth (an additional 40–57%). The SCD's ecological integrity scores suggest that SGI-funded conifer removal has either reversed (7) or halted (2) the degradation attributable to conifer encroachment in nine focal landscapes. Concentrating conifer removals together was 20% more effective at restoring Core and Growth than the 5% gains realized among scattered, isolated treatments. Our evaluation also shows that invasive annuals are undermining the integrity of initial SGI investments and warrant more attention to defend and grow Core. Embracing the SCD could help the SGI more effectively achieve desired wildlife outcomes given the biological relevance of Cores to sage-grouse and sagebrush-obligate songbirds.
十五年来,由自然资源保护局 (NRCS) 管理的 "鼠尾草倡议"(SGI)一直是美国西部私人牧场自愿保护农业法案投资的主要交付机制。SGI 与机构间将保护范围从鼠尾草扩展到整个鼠尾草生物群落的努力相一致,通过解决破坏工作地恢复力的复杂生态系统问题,将重点放在有利于野生动物的保护行动上。最近开发的 "鼠尾草保护设计"(Sagebrush Conservation Design,SCD)提供了一个共同框架,用于协调众多合作伙伴为拯救生物群落中仅存的完整鼠尾草生态系统所做的努力。在本论坛论文中,我们将探讨 SGI 私人土地战略保护与 SCD 相关的历史,并思考如何利用 SCD 改善未来的保护工作。从 2010 年到 2022 年,NRCS 通过 SGI 为地役权、针叶树移除和一年生入侵草管理提供了 4.23 亿美元的农业法案资金,其共同目标是捍卫和发展核心区,其中大多数 SGI 行动发生在核心区(6-14%)和发展区(另外 40-57%)。SCD 的生态完整性评分表明,由 SGI 资助的针叶林移除行动扭转(7 次)或阻止(2 次)了九个重点景观中针叶林侵占造成的退化。在恢复核心和生长方面,集中移除针叶树的效果要比分散、孤立处理的 5% 效果高出 20%。我们的评估还表明,入侵的一年生植物正在破坏最初的 SGI 投资的完整性,因此需要更多的关注来保护和增长核心。考虑到核心区与鼠尾草和依赖鼠尾草的鸣禽的生物学相关性,采用 SCD 可以帮助 SGI 更有效地实现预期的野生动物成果。
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引用次数: 0
Editorial Board/Journal Info 编辑委员会/期刊信息
IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Pub Date : 2024-10-15 DOI: 10.1016/S1550-7424(24)00175-1
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引用次数: 0
Modeling Cropland Conversion Risk to Scale-Up Averted Loss of Core Sagebrush Rangelands 建立耕地转换风险模型,以扩大核心沙棘灌木牧场避免损失的规模
IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Pub Date : 2024-10-15 DOI: 10.1016/j.rama.2024.08.011
Geoffrey Bedrosian , Kevin E. Doherty , Brian H. Martin , David M. Theobald , Scott L. Morford , Joseph T. Smith , Alexander V. Kumar , Jeffrey S. Evans , Matthew M. Heller , John Patrick Donnelly , John Guinotte , David E. Naugle
Cropland conversion is anticipated to continue westward from the Great Plains into the sagebrush (Artemisia spp.) biome – the most intact biome remaining in the conterminous United States. However, relatively little is known about the extent and risk of cropland conversion to sagebrush ecosystems and the landscape scale benefits of easements in averting loss of ecological function. Therefore, our goals were to 1) quantify the cropland area of the sagebrush biome, 2) identify where the highest quality sagebrush rangelands are most at risk to future cropland conversion, and 3) estimate the ecological benefits of conservation easements to adjacent public lands. We found that croplands span 14.4 million ha in the sagebrush biome, 16.2 million ha in the historic range of the greater sage-grouse (Centrocercus urophasianus), and are clustered regionally. Our spatial risk model identified 3.7 million ha of high-quality sagebrush rangelands in need of conservation protections from cropland conversion, with higher risk areas clustered regionally (e.g., Northern Great Plains). Our estimates of previous losses to cropland conversion indicated that roughly 80% of at-risk high-quality sagebrush communities have already been tilled. Spatial data and online maps of our risk model are publicly available as planning tools for prioritizing conservation and restoration actions in support of the Sagebrush Conservation Design framework. Using a case study from north-central Montana, we demonstrated that private land easements are crucial for the preservation of Core Sagebrush Areas (CSAs). These easements were found to indirectly preserve an area of CSAs that is 3.6 times larger than the easements themselves. Notably, a significant portion of this conservation benefit—approximately 80%—occurred on public lands adjacent to the easements. Our findings establish a clear connection between investments in private land conservation and beneficial outcomes on nearby public lands, and that focused, permanent protection efforts can extend ecosystem function beyond easements.
预计耕地将继续从大平原向西迁移,进入美国本土现存最完整的生物群落--鼠尾草(蒿属)生物群落。然而,人们对耕地向鼠尾草生态系统转化的程度和风险,以及地役权在避免生态功能丧失方面的景观效益知之甚少。因此,我们的目标是:1)量化鼠尾草生物群落的耕地面积;2)确定哪些地方最优质的鼠尾草牧场最有可能在未来被耕地转化;3)估算保护地役权对邻近公共土地的生态效益。我们发现,在鼠尾草生物群落中,耕地面积达 1,440 万公顷,在大鼠尾草(Centrocercus urophasianus)的历史分布区中,耕地面积达 1,620 万公顷,并且呈区域性聚集。我们的空间风险模型确定有 370 万公顷的优质鼠尾草牧场需要保护,以免被耕地转化,风险较高的地区集中在区域内(如大平原北部)。我们对以往耕地转换损失的估计表明,大约 80% 面临风险的优质鼠尾草群落已经被翻耕。我们风险模型的空间数据和在线地图可作为规划工具公开使用,用于确定保护和恢复行动的优先次序,以支持 "鼠尾草保护设计 "框架。通过对蒙大拿州中北部的案例研究,我们证明了私人土地地役权对于保护核心鼠茅草区(CSA)至关重要。研究发现,这些地役权间接保护的 CSA 面积是地役权本身面积的 3.6 倍。值得注意的是,这种保护效益的很大一部分(约 80%)发生在地役权附近的公共土地上。我们的研究结果表明,私人土地保护投资与附近公共土地的受益结果之间存在明确的联系,集中、永久的保护工作可将生态系统功能扩展到地役权之外。
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引用次数: 0
An Assessment of Conservation Opportunities Within Sagebrush Ecosystems of US National Parks and Wildlife Refuges 对美国国家公园和野生动物保护区内灌木丛生态系统保护机会的评估
IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Pub Date : 2024-10-15 DOI: 10.1016/j.rama.2024.09.005
Bill D. Sparklin , Kevin E. Doherty , Thomas J. Rodhouse , Jeffrey J. Lonneker , Jordan Spaak , Todd B. Cross , Jeffrey M. Warren
Strategic plans for landscape-scale conservation are preferable to ad-hoc decisions that lack evidence and cohesion. The Sagebrush Conservation Design (SCD) is a biome-wide geospatial decision-support framework for a “Defend the Core, Grow the Core” strategy. We mapped US National Parks and Refuges across the SCD to guide “defend and grow” investments. We summarized amounts of sagebrush “Core Sagebrush Areas” (CSAs) and “Growth Opportunity Areas” (GOAs) areas within Parks and Refuges and asked: 1) Where are the Parks and Refuges that contain substantial sagebrush resources and that are likely to retain these resources under future climate conditions? 2) What is the trend of loss across CSAs and GOAs within Parks and Refuges? 3) Do trends immediately surrounding Parks and Refuges correlate with those within? 4) Which Parks and Refuges contain the most CSAs and GOAs? 5) What will it cost to defend and grow CSAs in these places?
Approximately 127 000 ha (313 824 ac) or 75% of CSAs was lost from Parks and 87 000 ha (214 982 ac) or 25% was lost from Refuges since 1998. Climate change is likely to reduce CSAs and GOAs in the northeastern and southwestern biome periphery and at low elevations. Similar trends of loss were observed surrounding Parks and Refuges. This underscores the ‘outside-in’ nature of changes occurring in the biome as fires, conifer encroachment, and invasive grasses move rapidly through permeable landscapes. Ten Parks and 10 Refuges contain >95% of CSAs and GOAs and exhibit climate durability under our examined future scenario, revealing how investments can be prioritized. Within this list, however, estimated costs of recommended actions (e.g., annual grass suppression) greatly exceeds plausible available amounts, emphasizing the need to use strategic prioritization within high-priority units. We examined application of the SCD for guiding “open” and “defined” investment decisions for Park and Refuge case studies.
景观尺度保护的战略计划优于缺乏证据和凝聚力的临时决定。萨格布鲁什保护设计(Sagebrush Conservation Design,SCD)是一个全生物群地理空间决策支持框架,用于 "捍卫核心,发展核心 "战略。我们绘制了整个 SCD 的美国国家公园和保护区地图,以指导 "保护和发展 "投资。我们总结了公园和保护区内的鼠尾草 "核心鼠尾草区"(CSA)和 "增长机会区"(GOAs)的数量,并提出了以下问题:1)包含大量鼠尾草资源且在未来气候条件下有可能保留这些资源的公园和保护区在哪里?2) 公园和保护区内各 CSAs 和 GOAs 的损失趋势如何?3) 公园和保护区周边的趋势与保护区内部的趋势是否相关?4) 哪些公园和保护区包含最多的生态系统服务区和全球海洋观测系统?自 1998 年以来,约有 127 000 公顷(313 824 英亩)或 75% 的陆地生态系统服务区从公园消失,87 000 公顷(214 982 英亩)或 25% 的陆地生态系统服务区从保护区消失。气候变化可能会减少东北部和西南部生物群落外围以及低海拔地区的陆地生态系统服务区和全球海洋观测系统。在公园和保护区周围也观察到类似的损失趋势。这凸显了生物群落变化的 "由外而内 "性质,因为火灾、针叶林侵占和入侵草类在渗透性景观中快速移动。10 个公园和 10 个保护区包含了 95% 的 "全面保护区 "和 "全球海洋观测系统",并在我们研究的未来情景下表现出气候耐久性,揭示了如何确定投资的优先次序。然而,在这份清单中,建议行动的估计成本(如每年的牧草抑制)大大超出了合理的可用金额,这强调了在高优先级单位中使用战略优先级的必要性。我们对公园和保护区案例研究中指导 "开放 "和 "确定 "投资决策的 SCD 应用情况进行了检查。
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引用次数: 0
The Carbon Security Index: A Novel Approach to Assessing How Secure Carbon Is in Sagebrush Ecosystems Within the Great Basin 碳安全指数:评估大盆地内沙棘生态系统碳安全程度的新方法
IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Pub Date : 2024-10-15 DOI: 10.1016/j.rama.2024.08.005
Rory C. O'Connor , Chad S. Boyd , David E. Naugle , Joseph T. Smith
Rangeland carbon is often conceptualized similarly to intensively managed agricultural lands, in that we need to sequester and store more carbon. Unlike intensively managed agricultural lands, rangeland soils cannot sequester more carbon due to pedogenic and climatic limitations that influence plant community and microbial community dynamics. This requires a new paradigm for rangeland carbon that focuses on maintaining carbon security following disturbances like fire and plant community conversions (e.g., annual grasslands and conifer woodlands). To attain this, we propose the creation of a Carbon Security Index (CSI). CSI is a unitless, scalable value that can be used to compare carbon security across rangeland sites and over time and incorporates a plant fractional cover ratio, resistance and resilience, and wildfire probability. Using the Great Basin as a case study, we found that CSI decreased by 53% basin wide from 1989 to 2020. Using the Sagebrush Conservation Design's sagebrush ecological integrity categories across the Great Basin, we found that CSI in “core” areas remained relatively unchanged between 1998 and 2020 (decreased by 1%), whereas “growth opportunity” areas CSI began to change (decreased by 13%) and “other rangeland” areas CSI decreased by 67%. We found that CSI was able to act as an indicator for determining when carbon security would decrease several years prior to a wildfire disturbance, which then rapidly reduced CSI. Finally, we created a carbon security management map to help prioritize potential management for achieving greatest carbon security and locations for restoration. These results show that CSI provides landowners and land managers an opportunity to assess how secure their carbon is on the land and help them prioritize areas for restoration.
牧场碳的概念通常与集约化管理的农业用地类似,即我们需要固存和储存更多的碳。与集约化管理的农田不同,牧场土壤由于受到影响植物群落和微生物群落动态的成土和气候限制,无法固存更多的碳。这就需要一种新的牧场碳模式,重点是在火灾和植物群落转换(如一年生草地和针叶林地)等干扰后保持碳安全。为此,我们建议创建碳安全指数(CSI)。碳安全指数是一个无单位、可扩展的数值,可用于比较不同牧场和不同时期的碳安全状况,并包含植物部分覆盖率、抵抗力和恢复力以及野火概率。以大盆地为例,我们发现从 1989 年到 2020 年,整个盆地的 CSI 下降了 53%。利用 "灌木丛保护设计 "对整个大盆地的灌木丛生态完整性进行分类,我们发现 1998 年至 2020 年期间,"核心 "地区的 CSI 保持相对不变(下降了 1%),而 "增长机会 "地区的 CSI 开始发生变化(下降了 13%),"其他牧场 "地区的 CSI 下降了 67%。我们发现,在野火肆虐的前几年,CSI 可以作为判断碳安全度何时下降的指标,野火肆虐后,CSI 会迅速下降。最后,我们绘制了一张碳安全管理地图,以帮助确定实现最大碳安全的潜在管理和恢复地点的优先顺序。这些结果表明,CSI 为土地所有者和土地管理者提供了一个评估土地碳安全程度的机会,并帮助他们确定恢复区域的优先顺序。
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引用次数: 0
A Spatial Prioritization of Conifer Management to Defend and Grow Sagebrush Cores 确定针叶林管理的空间优先次序,以保护和发展灌木丛核心区
IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Pub Date : 2024-10-15 DOI: 10.1016/j.rama.2024.08.006
Jason R. Reinhardt , Jeremy D. Maestas , David E. Naugle , Geoffrey Bedrosian , Kevin E. Doherty , Alexander V. Kumar
Sagebrush ecosystems across the western U.S. are in decline due to numerous threats, including expansion of coniferous woodlands and forests. The interagency Sagebrush Conservation Design effort recently quantified sagebrush ecological integrity (SEI) to map remaining core sagebrush areas (relatively intact and functional sagebrush ecosystems) and understand spatial and temporal patterns of change relative to primary threats. Recent work has identified conifer expansion as the second leading cause of decline in sagebrush ecological integrity biome wide. Here, we sought to create a spatial prioritization of conifer management that maximizes return-on-investment to defend and grow core sagebrush areas. Multi-criteria decision analysis (MCDA) was used to incorporate a series of biome-level inputs including SEI, invasive annual grass cover and risk, structural connectivity, and conifer cover and expansion vulnerability into a single prioritization based on collaborative expert input. Our analysis identifies priority areas for conifer management across the sagebrush biome, simulates conifer treatments based on those priorities, and estimates potential changes in SEI as a result of targeted treatment. At a broad scale, we found that the highest priority areas for conifer management were largely located east of the Rocky Mountains. This represents a departure from recent landscape-level trends of conifer management efforts in sagebrush systems, which were focused primarily on pinyon-juniper expansion in the Great Basin. A majority (52%) of the highest priority areas are managed by the Bureau of Land Management, followed by a large proportion (26%) of priority areas located on privately-owned land – particularly in Wyoming and Montana. Targeting simulated conifer treatments using our prioritization resulted in higher within-core targeting percentages (≥93%) than business-as-usual efforts (23.8%), which would result in a four- to eight-fold reduction in the time to treat priority areas within cores. Finally, we demonstrate that these simulated treatments, targeted with our prioritization, have the capacity to improve SEI in and around treatment areas. This work provides an actionable path to “Defend the Core” as outlined by the Sagebrush Conservation Design effort by helping conservationists more efficiently address conifer expansion in and around core sagebrush areas.
由于针叶林地和森林的扩张等众多威胁,美国西部的沙棘生态系统正在衰退。最近,跨机构的 "鼠尾草保护设计 "工作对鼠尾草生态完整性(SEI)进行了量化,以绘制剩余的核心鼠尾草区域(相对完整且功能正常的鼠尾草生态系统),并了解与主要威胁相关的时空变化模式。最近的研究发现,针叶林的扩张是导致整个生物群落的灌木丛生态完整性下降的第二大原因。在此,我们试图确定针叶林管理的空间优先次序,使保护和发展核心鼠尾草区域的投资回报最大化。我们使用多标准决策分析(MCDA)将一系列生物群落层面的输入信息(包括 SEI、入侵一年生草覆盖率和风险、结构连通性、针叶林覆盖率和扩展脆弱性)纳入基于专家合作输入的单一优先级排序中。我们的分析确定了整个鼠尾草生物群落中针叶林管理的优先区域,根据这些优先区域模拟了针叶林的处理方法,并估算了有针对性的处理方法可能导致的 SEI 变化。从广义上讲,我们发现针叶林管理的最高优先级区域主要位于落基山脉以东。这与近期鼠尾草系统针叶林管理的景观趋势不同,后者主要集中在大盆地松柏-桧柏的扩张上。大部分(52%)最优先区域由土地管理局管理,其次是很大一部分(26%)位于私有土地上的优先区域,尤其是在怀俄明州和蒙大拿州。使用我们的优先级进行针叶树的模拟目标处理,其核心内目标处理百分比(≥93%)高于正常情况下的目标处理百分比(23.8%),这将使核心内优先区域的处理时间缩短四到八倍。最后,我们证明,根据我们的优先排序,这些模拟处理有能力改善处理区域及其周围的 SEI。这项工作为 "捍卫核心 "提供了一条可行的途径,正如 "鼠尾草保护设计 "所概述的那样,它可以帮助保护工作者更有效地解决鼠尾草核心区及其周围针叶林扩张的问题。
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引用次数: 0
Will It Burn? Characterizing Wildfire Risk for the Sagebrush Conservation Design 它会燃烧吗?确定野火风险的特征,以进行灌木丛保护设计
IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Pub Date : 2024-10-15 DOI: 10.1016/j.rama.2024.08.014
Michele R. Crist , Karen C. Short , Todd B. Cross , Kevin E. Doherty , Julia H. Olszewski
For millennia, wildfire has helped shape the sagebrush biome of the western United States. Over recent decades, historical fire regimes have been altered by several factors, including contemporary climate and fuel conditions, leading to the loss or degradation of hundreds of thousands of hectares (ha) of sagebrush each year. In response to wildfire threats, extensive fuel treatment investments are proposed across the region. To help inform strategic and cost-effective investments, we conducted a quantitative assessment of wildfire risk for the sagebrush biome. We used a geospatial fire modeling approach, customized for the sagebrush biome, to estimate spatially explicit burn probability and expected average annual area burned within three Sagebrush Ecological Integrity classes under the Sagebrush Conservation Design: Core Sagebrush Areas (CSAs), Growth Opportunity Areas (GOAs), and Other Rangeland Areas. We further used indices of ecological resilience to disturbance and resistance to invasive grasses to characterize fire risk and recovery potential. Our approach indicates that nearly 530,000 ha are likely to burn in a typical contemporary fire year across the highest integrity Sagebrush Ecological Integrity classes (7% in CSAs and 31% in GOAs). Of the CSAs and GOAs likely to burn, nearly 9 000 and 66 000 ha, respectively, are expected to have low resilience or resistance and therefore highest loss potential. Cost-effective conservation investments should include wildfire protection for high-integrity sagebrush with low resilience or resistance. Protection objectives may be met with strategically placed fuel breaks intended to enhance fire prevention and containment efforts. Fuel treatments, including prescribed fire and mechanical activities outside of fuel breaks, are by contrast best suited for high-integrity areas with relatively high resilience and resistance. Those activities should be risk-informed and intended to maintain or improve ecological integrity and resilience to wildfire rather than to exclude fire altogether.
千百年来,野火帮助塑造了美国西部的鼠尾草生物群落。近几十年来,历史上的火灾机制因当代气候和燃料条件等多种因素而发生了改变,导致每年数十万公顷的鼠尾草损失或退化。为应对野火威胁,建议在整个地区进行广泛的燃料处理投资。为了帮助了解具有成本效益的战略性投资,我们对灌木丛生物群落的野火风险进行了定量评估。我们使用了专为灌木丛生物群落定制的地理空间火灾建模方法,以估算空间明确的燃烧概率以及根据灌木丛保护设计划分的三个灌木丛生态完整性等级内的预期年平均燃烧面积:我们进一步使用了生态恢复指数来估算沙棘灌木生物群落的烧毁概率和预期年平均烧毁面积。我们进一步使用了生态抗干扰能力指数和抵抗入侵草的能力指数来描述火灾风险和恢复潜力。我们的方法表明,在当代一个典型的火灾年中,近 53 万公顷的土地可能会在完整性最高的萨格布鲁什生态完整性等级中被烧毁(在 CSA 中为 7%,在 GOAs 中为 31%)。在可能被烧毁的 CSA 和 GOAs 中,预计分别有近 9 000 公顷和 66 000 公顷的恢复力或抵抗力较低,因此损失可能性最大。具有成本效益的保护投资应包括对复原力或抵抗力较低的高完整性灌木丛进行野火保护。为达到保护目标,可战略性地设置断火带,以加强火灾预防和遏制工作。相比之下,燃料处理(包括燃料隔离带以外的规定用火和机械活动)最适合复原力和抵抗力相对较高的高完整性地区。这些活动应该以风险为导向,旨在保持或改善生态完整性和对野火的恢复能力,而不是完全将火排除在外。
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引用次数: 0
State of the Sagebrush: Implementing the Sagebrush Conservation Design to Save a Biome 灌木丛现状:实施灌木丛保护设计,拯救生物群落
IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Pub Date : 2024-10-15 DOI: 10.1016/j.rama.2024.08.017
K.E. Doherty , J. Maestas , T. Remington , D.E. Naugle , C. Boyd , L. Wiechman , G. Bedrosian , M. Cahill , P. Coates , M. Crist , M.C. Holdrege , A.V. Kumar , T. Mozelewski , R.C. O'Connor , E.M. Olimpi , A. Olsen , B.G. Prochazka , J.R. Reinhardt , J.T. Smith , W.D. Sparklin , K. Wollstein
This special issue of Rangeland Ecology and Management is dedicated to applying the Sagebrush Conservation Design (SCD) to improve conservation outcomes across the sagebrush biome in the face of pervasive ecosystem threats. This special issue provides new science and real-world examples of how we can implement the SCD to save a biome. The SCD is a tool to identify intact sagebrush areas and address the largest threats to the ecosystem. The SCD focuses on first protecting intact and functioning sagebrush ecosystems, called Core Sagebrush Areas, then works outward toward more degraded areas (i.e., “Defend the Core”). The premise behind the Defend the Core approach is simple: focus resources first on preventative actions that retain ecosystem services in Core Sagebrush Areas because they are more cost-effective and more likely to be successful. The opening article of this special issue creates a foundation for the 19 following papers, providing a coherent path for implementing the SCD. The overarching themes are: 1) Business-As-Usual Won't Save the Sagebrush Sea, 2) Better Spatial Targeting Can Improve Outcomes, 3) Conservation Planning is Needed to Develop Realistic Business Plans, 4) Targeted Ecosystem Management: Monitoring Shows Managing for Sagebrush Ecological Integrity is Working, 5) Maintaining Sagebrush Ecological Integrity is Ecologically Relevant, and 6) There is Only Hope if We Manage Change. The collective articles show that there is no shared plan to save the biome, yet a business plan for the biome could ensure realistic goals. The sagebrush biome still has vast expanses of open spaces with high ecological integrity at a scale that is rare in other ecological systems within the lower 48 states. If we focus on the common ground of the main drivers of ecosystem change, implementing the SCD and Defending the Core are viable strategies to help save a biome.
本期《牧场生态与管理》特刊致力于应用 "鼠尾草保护设计"(Sagebrush Conservation Design,SCD)来改善整个鼠尾草生物群落的保护成果,以应对普遍存在的生态系统威胁。本特刊提供了新的科学知识和实际案例,说明我们可以如何实施 SCD 来拯救一个生物群落。SCD 是一种工具,用于识别完整的鼠尾草地区并解决生态系统面临的最大威胁。SCD 的重点首先是保护完好无损且功能正常的沙棘生态系统(称为核心沙棘区),然后再向外扩展到退化较严重的地区(即 "保卫核心")。捍卫核心 "方法背后的前提很简单:首先将资源集中用于预防性行动,以保留核心灌木丛地区的生态系统服务,因为这些行动更具成本效益,也更有可能取得成功。本特刊的开篇文章为随后的 19 篇论文奠定了基础,为实施 SCD 提供了一条连贯的路径。首要主题是1)"一切照旧 "无法拯救沙棘海;2)更好的空间定位可改善结果;3)需要保护规划来制定现实的商业计划;4)有针对性的生态系统管理:4) 目标明确的生态系统管理:监测显示对灌木丛生态完整性的管理是有效的,5) 维护灌木丛生态完整性与生态相关,6) 只有管理变化才有希望。这些文章共同表明,目前还没有拯救该生物群落的共同计划,但该生物群落的商业计划可以确保实现现实的目标。鼠尾草生物群落仍然拥有广阔的开放空间,其生态完整性很高,这种规模在美国低48州的其他生态系统中非常罕见。如果我们关注生态系统变化主要驱动因素的共同点,实施 SCD 和捍卫核心是帮助拯救生物群落的可行战略。
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引用次数: 0
Evaluating the Sagebrush Conservation Design Strategy Through the Performance of a Sagebrush Indicator Species 通过鼠尾草指示物种的表现评估鼠尾草保护设计战略
IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Pub Date : 2024-10-15 DOI: 10.1016/j.rama.2024.08.021
Brian G. Prochazka , Carl G. Lundblad , Kevin E. Doherty , Shawn T. O'Neil , John C. Tull , Steve C. Abele , Cameron L. Aldridge , Peter S. Coates
Sagebrush ecosystems support a suite of unique species such as the emblematic greater sage-grouse (Centrocercus urophasianus; sage-grouse) but are under increasing pressure from anthropogenic stressors such as annual grass invasion, conifer encroachment, altered wildfire regimes, and land use change. We examined the ability of an ecosystem-based framework for sagebrush conservation, the sagebrush conservation design (SCD) strategy, and the associated model of sagebrush ecological integrity (SEI), to identify and rank priority habitats for sage-grouse, a sagebrush indicator species. We compared sage-grouse population trends from 1996–2021 across the three ranked SEI categories. We then modeled those trends directly as a function of the same landcover predictors underlying SEI, used the median trend estimates to recategorize the sage-grouse's range, and used spatial correlation methods to compare our sage-grouse performance categories with those of SEI. Finally, we compared the sage-grouse condition categories, predicted by our landcover-based model, to empirical trends derived from population count data. We found that the SCD and SEI were effective tools for identifying and ranking priority habitats for sage-grouse. Population trends were stable in the core areas identified by SEI but declining in the lower (i.e., growth and other) condition categories. As a result, core areas encompassed an increasingly larger share of the total sage-grouse population in a disproportionately smaller area. Our model supports the general functional relationships between landcover and sage-grouse performance suggested by SEI. We found strong spatial congruence between our categories of predicted sage-grouse population performance, the condition categories of SEI, and empirical trends derived from population count data. Our analysis demonstrates that proactive ecosystem-based approaches to the conservation of the sagebrush biome can help optimize the return on limited conservation resources and benefits for sagebrush obligate species and help reduce some of the real and perceived conflicts inherent in single-species management.
鼠尾草生态系统支持着一系列独特的物种,如标志性的大鼠尾草(Centrocercus urophasianus; sage-grouse),但其受到的人为压力也越来越大,如一年生草入侵、针叶林侵占、野火机制改变以及土地利用变化。我们研究了基于生态系统的鼠尾草保护框架、鼠尾草保护设计(SCD)战略以及相关的鼠尾草生态完整性(SEI)模型的能力,以确定鼠尾草(鼠尾草指示物种)的优先栖息地并对其进行排序。我们比较了 1996-2021 年间三个 SEI 类别中的松鼠数量趋势。然后,我们将这些趋势直接建模为与 SEI 基本相同的土地覆盖预测因子的函数,使用趋势估计中值重新划分鼠尾草的分布范围,并使用空间相关方法将我们的鼠尾草表现类别与 SEI 的类别进行比较。最后,我们将基于土地覆盖物的模型预测的松鸡状况类别与种群计数数据得出的经验趋势进行了比较。我们发现,SCD 和 SEI 是识别和排列鼠兔优先栖息地的有效工具。在 SEI 确定的核心区域,种群趋势保持稳定,但在较低的(即生长和其他)条件类别中,种群趋势有所下降。因此,在不成比例的较小区域内,核心区域所占的鼠兔总数量比例越来越大。我们的模型支持 SEI 提出的土地覆盖物与松鸡表现之间的一般功能关系。我们发现,在我们预测的松鸡种群表现类别、SEI 的条件类别以及从种群计数数据中得出的经验趋势之间存在着很强的空间一致性。我们的分析表明,以生态系统为基础的积极主动的保护鼠尾草生物群落的方法有助于优化有限的保护资源的回报和鼠尾草必生物种的利益,并有助于减少单一物种管理中固有的一些实际的和感知到的冲突。
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引用次数: 0
Crossing the Chasm: Using Technical Transfer to Bridge Science Production and Management Action 跨越鸿沟:利用技术转让架起科学生产与管理行动的桥梁
IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Pub Date : 2024-10-15 DOI: 10.1016/j.rama.2024.08.008
Andrew Olsen , Megan Creutzburg , Mariah McIntosh , Dylan O'Leary , Katherine Wollstein , Jeremy D. Maestas , Lindy Garner , Brian Mealor
The rangeland science discipline has produced innovative science, datasets, maps, and tools to support rangeland conservation and management, such as those presented in this issue. Yet, there is a persistent gap between science production and on-the-ground implementation of conservation and management actions, and many managers remain in “information overload” while struggling to integrate technical products into management applications. Technical transfer seeks to overcome these barriers and empower land managers to address their land management challenges. We present a principle-based process for conducting effective technical transfer based on the collective experience of a network of technical transfer professionals and highlight an example of this process with Threat-Based Strategic Conservation workshops. We describe how much of the work of technical transfer occurs before any actions are taken, provide best practices for conducting technical transfer, and suggest steps to take after an effort to learn from and perpetuate technical transfer work. We provide considerations and insights for conducting effective technical transfer to support conservation and management in rangelands and beyond.
牧场科学学科产生了创新的科学、数据集、地图和工具,以支持牧场保护和管理,例如本期介绍的那些。然而,科学成果与实地实施保护和管理行动之间始终存在差距,许多管理人员仍然处于 "信息过载 "状态,难以将技术产品融入管理应用。技术转移旨在克服这些障碍,使土地管理者有能力应对土地管理方面的挑战。我们根据技术转移专业人员网络的集体经验,提出了一个基于原则的有效技术转移流程,并以基于威胁的战略保护研讨会为例重点介绍了这一流程。我们描述了技术转让的大部分工作是如何发生在采取任何行动之前的,提供了进行技术转让的最佳实践,并建议了在努力从技术转让工作中学习并使其永久化之后应采取的步骤。我们提供了进行有效技术转让的注意事项和见解,以支持牧场及其他地区的保护和管理。
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引用次数: 0
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Rangeland Ecology & Management
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