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Potential impacts of reduced seafood consumption on myocardial infarction among coastal First Nations in British Columbia, Canada 减少海产品消费对加拿大不列颠哥伦比亚省沿海原住民心肌梗死的潜在影响
IF 3.1 3区 综合性期刊 Q1 Multidisciplinary Pub Date : 2024-01-01 DOI: 10.1139/facets-2022-0245
Lesya Marushka, X. Hu, T. Kenny, Malek Batal, Karen Fediuk, T. Sadik, Christopher D. Golden, William W. L. Cheung, Anne K. Salomon, Hing Man Chan
The objective of this study is to examine the potential cardiovascular risk of climate-related declines in seafood consumption among First Nations in British Columbia by assessing the combined effects of reduced omega-3 fatty acids and mercury intake from seafood on the risk of myocardial infarction (MI) in 2050 relative to 2009. The data were derived from the First Nations Food, Nutrition, and Environment Study. Seafood consumption among 369 randomly selected participants was estimated, and hair mercury concentrations were measured. Declines in seafood consumption were modelled based on previously projected climate change scenarios, and the associated changes in nutrients and contaminants were used to estimate the cardiovascular risk. Reduced seafood consumption was projected to increase the risk of MI by 4.5%–6.5% among older individuals (≥50 years), by 1.9%–2.6% in men, and by 1.3%–1.8% in women under lower and upper climate change scenarios, respectively. Reduced seafood consumption may have profound cardiovascular implications. Effective strategies are needed to promote sustainable seafood harvests and access to seafood for coastal First Nations.
本研究的目的是通过评估与 2009 年相比,2050 年海产品中欧米茄-3 脂肪酸和汞摄入量的减少对心肌梗塞(MI)风险的综合影响,来研究不列颠哥伦比亚省原住民海产品消费与气候相关的减少可能带来的心血管风险。这些数据来自原住民食品、营养和环境研究(First Nations Food, Nutrition, and Environment Study)。对 369 名随机抽取的参与者的海产品消费量进行了估算,并测量了头发中的汞浓度。根据先前预测的气候变化情景,对海产品消费量的下降进行了模拟,并利用营养素和污染物的相关变化来估算心血管风险。根据预测,在较低和较高气候变化情景下,海产品消费量的减少将使老年人(≥50 岁)的心肌梗死风险增加 4.5%-6.5%,男性增加 1.9%-2.6%,女性增加 1.3%-1.8%。海产品消费量的减少可能会对心血管产生深远影响。需要制定有效的战略,促进沿海原住民可持续地收获海产品并获得海产品。
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引用次数: 0
Evaluating the design of the first marine protected area network in Pacific Canada under a changing climate 在不断变化的气候条件下评估加拿大太平洋地区首个海洋保护区网络的设计
IF 3.1 3区 综合性期刊 Q1 Multidisciplinary Pub Date : 2024-01-01 DOI: 10.1139/facets-2023-0126
E. Rubidge, Carrie K. Robb, Patrick L. Thompson, Chris McDougall, K. Bodtker, K. S. Gale, Stephen Ban, Kil Hltaanuwaay Tayler Brown, Vicki Sahanatien, Sachiko Ouchi, Sarah K. Friesen, N. C. Ban, Karen L. Hunter, Angelica Pena, A. Holdsworth, Rebecca Martone
Marine protected area (MPAs) networks can buffer marine ecosystems from the impacts of climate change by allowing species to redistribute as conditions change and by reducing other stressors. There are, however, few examples where climate change has been considered in MPA network design. In this paper, we assess how climate change considerations were integrated into the design of a newly released MPA network in the Northern Shelf Bioregion in British Columbia, Canada, and then evaluate the resulting network against projected physical and biogeochemical changes and biological responses. We found that representation, replication, and size and spacing recommendations integrated into the design phase were met in most cases. Furthermore, despite varying degrees of projected changes in temperature, dissolved oxygen, and aragonite saturation across the MPA network, suitable habitat for demersal fish species is projected to remain in the network despite some redistribution among sites. We also found that mid-depth MPAs are particularly important for persistence, as fish are projected to move deeper to avoid warming in shallower areas. Our results highlight that a representative MPA network with adequate replication, that incorporates areas of varying climate change trajectory, should buffer against the impacts of climate change.
海洋保护区(MPA)网络可使物种随着条件变化重新分布,并减少其他压力因素,从而缓冲气候变化对海洋生态系统的影响。然而,在海洋保护区网络设计中考虑气候变化的例子却很少。在本文中,我们将评估如何将气候变化因素纳入加拿大不列颠哥伦比亚省北部大陆架生物区新发布的海洋保护区网络的设计中,然后根据预测的物理和生物地球化学变化以及生物反应对由此产生的网络进行评估。我们发现,在大多数情况下,纳入设计阶段的代表性、复制、大小和间距建议都得到了满足。此外,尽管整个海洋保护区网络的温度、溶解氧和霰石饱和度预计会发生不同程度的变化,但底层鱼类的合适栖息地预计仍会保留在网络中,尽管各站点之间会有一些重新分配。我们还发现,中深度海洋保护区对持续性尤为重要,因为预计鱼类会向更深的地方移动,以避免较浅区域的变暖。我们的研究结果突出表明,一个具有代表性的海洋保护区网络,如果有足够的重复性,并包含不同气候变化轨迹的区域,就能缓冲气候变化的影响。
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引用次数: 0
Conducting community-led research using trail cameras to develop baseline wandering domestic cat local abundance estimates 利用跟踪相机开展社区主导的研究,估算流浪家猫在当地的数量基线
IF 3.1 3区 综合性期刊 Q1 Multidisciplinary Pub Date : 2024-01-01 DOI: 10.1139/facets-2023-0033
Elizabeth A. Gow, Ben Aubrey, Lydia Cossar, Carter Mazerolle, E. Cheskey
Assessing cat local abundance provides information on where wandering cat numbers are highest and what habitats or factors are associated with wandering cats. A variety of stakeholders can lead this research and then use the findings to make scientifically informed decisions to guide the physical locations of cat management actions. Here, we document a framework that engages community members, uses minimal equipment (six trail cameras), and provides scientifically derived information for interested parties to inform, direct, or test the effectiveness of cat management practices. Using these methods in Gatineau, Quebec, Canada, we demonstrate how we estimated cat population size and cat local abundances across a variety of co-variates while accounting for non-perfect detection by using 55 trail camera sites and N-mixture models. Urban areas had three-fold higher local wandering cat abundances than parkland areas, and neighbourhoods below the median income had the highest local abundances of wandering cats. We estimated there are between 8905 and 48,419 (mean 21,298) wandering cats in Gatineau, with 18%–73% of those cats being unowned. These findings can be used to identify locations for future cat management. If estimates of cat abundance are repeated, they can assess the effectiveness of management actions.
评估猫科动物在当地的丰度可以提供流浪猫数量最多的地方的信息,以及哪些栖息地或因素与流浪猫有关。各种利益相关者都可以领导这项研究,然后利用研究结果做出科学决策,指导猫科动物管理行动的实际地点。在这里,我们记录了一个让社区成员参与其中、使用最少设备(六台跟踪相机)并为相关方提供科学信息的框架,以告知、指导或测试猫科动物管理措施的有效性。通过在加拿大魁北克省加蒂诺使用这些方法,我们展示了如何利用 55 个跟踪相机站点和 N 混合物模型,在考虑非完美检测的同时,估算出猫的种群数量和当地猫的丰度。城市地区的流浪猫数量是公园地区的三倍,收入低于中位数的社区的流浪猫数量最多。据估计,加蒂诺共有 8905 到 48419 只流浪猫(平均为 21298 只),其中 18% 到 73% 的猫为无主猫。这些发现可用于确定未来猫咪管理的地点。如果对猫的数量进行重复估计,就可以评估管理行动的有效性。
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引用次数: 0
Using community science to advance grizzly bear conservation 利用社区科学促进灰熊保护
IF 3.1 3区 综合性期刊 Q1 Multidisciplinary Pub Date : 2024-01-01 DOI: 10.1139/facets-2023-0020
Rolanda J. Steenweg, Tracy S. Lee, Danah Duke, Courtney Hughes
Alberta grizzly bears are classified as a threatened species in the province of Alberta as of 2010, with human-caused mortality and habitat loss a primary threat. The people who live, work, and recreate within bear habitat play a crucial role in their conservation. While the public is often enthusiastic about grizzly bears, and opportunistically report their observations to government staff, these reports are not systematic or rigorously collected and lack key information. As such, we developed GrizzTracker as a community science program. Following several years of successful deployment, we analyzed community scientist data and evaluated the efficacy of the program through an online user survey. We found that the GrizzTracker app was useful as a data collection and public engagement tool, yielding information for applied management, and that community scientists were generally satisfied. We provide considerations for future program development, including considerations for human, social, technological, and financial capital investment related to design, development, and implementation of data collection protocols, the importance of clearly communicating outcomes, and opportunities for educational outreach. While there is continued trepidation by traditionally trained scientists to develop or engage in community science programs, and some noted areas of improvement for our program specifically, we think that GrizzTracker offers a success story in community science.
截至 2010 年,艾伯塔灰熊在艾伯塔省被列为濒危物种,人为死亡和栖息地丧失是主要威胁。在灰熊栖息地生活、工作和娱乐的人们对灰熊的保护起着至关重要的作用。虽然公众通常对灰熊充满热情,并不失时机地向政府工作人员报告他们的观察结果,但这些报告缺乏系统性或严格的收集,也缺乏关键信息。因此,我们开发了 GrizzTracker 作为社区科学项目。经过几年的成功部署,我们分析了社区科学家的数据,并通过在线用户调查评估了该计划的有效性。我们发现,GrizzTracker 应用程序作为数据收集和公众参与工具非常有用,为应用管理提供了信息,社区科学家普遍感到满意。我们提供了未来项目开发的注意事项,包括与数据收集协议的设计、开发和实施相关的人力、社会、技术和财务资本投资的注意事项,明确传达结果的重要性,以及教育推广的机会。虽然传统上训练有素的科学家在开发或参与社区科学计划方面仍然存在畏难情绪,而且我们的计划也存在一些需要改进的地方,但我们认为灰熊追踪器为社区科学提供了一个成功的案例。
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引用次数: 0
Naphthenic acid fraction compounds, produced by the extraction of bitumen from oil sands, alter survival and behaviour of juvenile yellow perch (Perca flavescens) 从油砂中提取沥青时产生的环烷酸馏分化合物会改变黄鲈幼鱼(Perca flavescens)的生存和行为
IF 3.1 3区 综合性期刊 Q1 Multidisciplinary Pub Date : 2024-01-01 DOI: 10.1139/facets-2022-0176
J. Reynolds, C. K. Elvidge, Ian J. Vander Meulen, Caleb T. Hasler, R. A. Frank, J. Headley, L. M. Hewitt, D. Orihel
We evaluated whether naphthenic acid fraction compounds (NAFCs) extracted from oil sand tailings adversely affect fish survival and behaviour. Following a before–after-control-impact design, we housed wild-caught juvenile yellow perch ( Perca flavescens) in outdoor mesocosms to assess survival and behaviour under baseline conditions, then exposed fish to one of three treatments: negative control, 2 mg/L NAFC, or 15 mg/L NAFC. We performed behavioural assays (no-stimulus activity, food stimulus, and predator stimulus using a model bird) and assessed a comprehensive suite of endpoints (equilibrium losses, activity, shoaling, burst swimming, freezing, and space use). We found that exposure to 15 mg/L NAFCs substantially reduced fish survival and impaired fish equilibrium in all three behavioural tests. Furthermore, exposure to NAFCs impaired anti-predator behaviour: while the activity of control fish increased by two-fold in response to a predator stimulus, fish exposed to 2 or 15 mg/L NAFC did not change their activity levels after stimulation. No significant changes were observed in other behavioural endpoints. Overall, our findings suggest that a week-long exposure to NAFCs at concentrations commonly found in tailings ponds, constructed wetlands, and other mining-impacted waters may affect multiple facets of fish behaviour that could ultimately lead to reduced fitness in fish populations.
我们评估了从油砂尾矿中提取的环烷酸馏分化合物(NAFCs)是否会对鱼类的生存和行为产生不利影响。按照 "控制-影响 "设计,我们将野生捕捞的黄鲈幼鱼(Perca flavescens)饲养在室外中置池中,以评估基线条件下的存活率和行为,然后将鱼暴露于三种处理之一:阴性对照、2 mg/L NAFC 或 15 mg/L NAFC。我们进行了行为测定(无刺激活动、食物刺激和使用模型鸟进行捕食者刺激),并评估了一整套终点(平衡损失、活动、挤压、爆发性游泳、冻结和空间利用)。我们发现,暴露于 15 毫克/升的 NAFCs 会大大降低鱼类的存活率,并在所有三种行为测试中损害鱼类的平衡。此外,暴露于NAFCs还会损害鱼类的反捕食行为:对照组鱼类在捕食者刺激下的活动量增加了两倍,而暴露于2毫克/升或15毫克/升NAFCs的鱼类在刺激后的活动量没有变化。其他行为终点也未观察到明显变化。总之,我们的研究结果表明,暴露于尾矿池、人工湿地和其他受采矿影响水域中常见浓度的 NAFCs 达一周之久,可能会影响鱼类行为的多个方面,最终导致鱼类种群体质下降。
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引用次数: 0
Now is the time for academics to think and act beyond academia 现在是学术界超越学术界思考和行动的时候了
IF 3.1 3区 综合性期刊 Q1 Multidisciplinary Pub Date : 2024-01-01 DOI: 10.1139/facets-2023-0070
H. Kharouba
Despite the challenges posed by climate change and the biodiversity crisis, most academic research continues to stay within academia and the gaps between conservation science, policy, and practice remain intact. We need to improve the exchange of evidence between researchers and conservation practitioners and focus on solutions-oriented, interdisciplinary science and co-developed research. As we continue to break climate records and lose record numbers of species every year, now is the time for academics to think and act beyond their institutions.
尽管气候变化和生物多样性危机带来了挑战,但大多数学术研究仍停留在学术界内部,保护科学、政策和实践之间的差距依然存在。我们需要改善研究人员和保护工作者之间的证据交流,并注重以解决方案为导向的跨学科科学和共同开发的研究。随着我们不断打破气候记录,每年失去的物种数量也创下新高,现在是学术界超越其机构进行思考和行动的时候了。
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引用次数: 0
What is habitat sensitivity? A quantitative definition relating resistance, resilience, and recoverability to environmental impacts 什么是生境敏感性?与环境影响的抵抗力、复原力和可恢复性有关的量化定义
IF 3.1 3区 综合性期刊 Q1 Multidisciplinary Pub Date : 2024-01-01 DOI: 10.1139/facets-2022-0205
Cody J. Dey, E. Tuononen, E. Hodgson, D. A. R. Drake, M. Koops, Cindy Chu
Habitat sensitivity is a consideration for decision-making under environmental laws in many jurisdictions. However, habitat sensitivity has been variously defined and there is no consistent approach to its quantification, which limits our understanding of how habitat sensitivity varies among systems and in response to different pressures. We review various definitions offered in the scientific literature and policy documents before suggesting a universal framework for habitat sensitivity as (i) a habitat trait that defines the ecological impacts from a given pressure, (ii) which is composed of three components (habitat resistance, resilience, and recoverability), and (iii) which is quantified by measuring the change and recovery in the state of key habitat attributes in response to pressures. In addition, we provide guidance toward a consistent approach to assessing habitat sensitivity, which includes the use of pressure benchmarks and standardized metrics of change in key habitat attributes to create a common scale for comparison among habitat attributes and pressures. Our framework and recommendations should help to standardize the way in which habitat sensitivity is defined and assessed, and could be integrated into decision-making processes to improve ecosystem management in different jurisdictions.
根据许多国家的环境法,生境敏感性是决策的一个考虑因素。然而,对生境敏感性的定义各不相同,也没有统一的量化方法,这限制了我们对不同系统和不同压力下生境敏感性差异的理解。我们回顾了科学文献和政策文件中提供的各种定义,然后提出了栖息地敏感性的通用框架:(i) 一种定义了特定压力对生态影响的栖息地特征;(ii) 由三部分组成(栖息地抵抗力、恢复力和可恢复性);(iii) 通过测量关键栖息地属性在应对压力时的变化和恢复情况来量化。此外,我们还为评估栖息地敏感性的一致方法提供了指导,其中包括使用压力基准和关键栖息地属性变化的标准化度量,以创建一个用于比较栖息地属性和压力的通用尺度。我们的框架和建议应有助于使生境敏感性的定义和评估方式标准化,并可纳入决策过程,以改善不同辖区的生态系统管理。
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引用次数: 0
Historical gold mining increased metal(loid) concentrations in lake sediments from Nova Scotia, Canada 历史上的金矿开采增加了加拿大新斯科舍省湖泊沉积物中的金属(loid)浓度
IF 3.1 3区 综合性期刊 Q1 Multidisciplinary Pub Date : 2024-01-01 DOI: 10.1139/facets-2023-0063
B. Sivarajah, Linda M. Campbell, J. Smol, J. Vermaire, J. Kurek
Historical gold mining operations between the 1860s and 1940s have left substantial quantities of arsenic- and mercury-rich tailings near abandoned mines in remote and urban areas of Nova Scotia, Canada. Large amounts of materials from the tailings have entered the surface waters of downstream aquatic ecosystems at concentrations that present a risk to benthos. We used paleolimnological approaches to examine long-term trends in sedimentary metal(loid) concentrations, assess potential sediment toxicity, and determine if geochemical recovery has occurred at four lakes located downstream of three productive gold-mining districts. During the historical mining era, sedimentary total arsenic and mercury concentrations and enrichment factors increased substantially at all downstream lakes that received inputs from tailings. Similarly, chromium, lead, and zinc concentrations increased in the sediments after mining activities began and the urbanization that followed. The calculated probable effects of concentration quotients (PEC-Qs) for sediments exceeded the probable biological effects threshold (PEC-Q > 2) during the mining era. Although sedimentary metal(loid) concentrations have decreased for most elements in recent sediments, relatively higher PEC-Q and continued exceedance of Canadian Interim Sediment Quality Guidelines suggest that complete geochemical recovery has not occurred. It is likely that surface runoff from tailing fields, urbanization, and climate-mediated changes are impacting geochemical recovery trajectories.
19 世纪 60 年代至 20 世纪 40 年代的历史金矿开采活动在加拿大新斯科舍省偏远和城市地区的废弃矿山附近留下了大量富含砷和汞的尾矿。尾矿中的大量物质进入了下游水生生态系统的地表水中,其浓度对底栖动物构成了威胁。我们采用古生物学方法研究了沉积金属(loid)浓度的长期趋势,评估了潜在的沉积物毒性,并确定了位于三个高产金矿区下游的四个湖泊是否发生了地球化学恢复。在历史采矿时期,所有接受尾矿输入的下游湖泊的沉积总砷、汞浓度和富集因子都大幅增加。同样,在采矿活动开始以及随后的城市化进程之后,沉积物中的铬、铅和锌浓度也有所增加。在采矿时期,计算得出的沉积物可能的影响浓度商数(PEC-Q)超过了可能的生物影响阈值(PEC-Q > 2)。虽然近期沉积物中大多数元素的沉积金属(loid)浓度有所下降,但相对较高的 PEC-Q 和持续超过加拿大沉积物质量临时准则的情况表明,地球化学尚未完全恢复。尾矿场的地表径流、城市化和气候的变化可能正在影响地球化学的恢复轨迹。
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引用次数: 0
Julie Morand-Ferron retrospective (1977–2022) for FACETS 为 FACETS 举办的朱莉-莫兰德-费伦回顾展(1977-2022 年
IF 3.1 3区 综合性期刊 Q1 Multidisciplinary Pub Date : 2024-01-01 DOI: 10.1139/facets-2023-0190
L. Cauchard, N. Boogert, Luc‐Alain Giraldeau, Louis Lefebvre, Jeremy N. McNeil, S. Overington, J. Quinn
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引用次数: 0
Urgent and long overdue: legal reform and drug decriminalization in Canada 迫在眉睫、姗姗来迟:加拿大的法律改革和毒品非刑罪化
IF 3.1 3区 综合性期刊 Q1 Multidisciplinary Pub Date : 2024-01-01 DOI: 10.1139/facets-2022-0080
Vanessa Gruben, Elaine Hyshka, Matthew Bonn, Chelsea Cox, Marilou Gagnon, A. Guta, Martha Jackman, Jason Mercredi, Akia Munga, Eugene Oscapella, C. Strike, Hakique Virani
The International Guidelines on Human Rights and Drug Policy recommend that states commit to adopting a balanced, integrated, and human rights-based approach to drug policy through a set of foundational human rights principles, obligations arising from human rights standards, and obligations arising from the human rights of particular groups. In respect of the Guidelines and standing obligations under UN Treaties, Canada must adopt stronger and more specific commitments for a human rights-based, people-centered, and public health approach. This approach must commit to the decriminalization of people who use drugs and include the decriminalization of possession, purchase, and cultivation for personal consumption. In this report, we will first turn to the legal background of Canada's drug laws. Next, we will provide an overview of ongoing law reform proposals from civil society groups, various levels of government, the House of Commons, and the Senate. We end with a three-staged approach to reform and a series of targeted recommendationscr.
人权与毒品政策国际准则》建议各国承诺通过一套基本人权原则、人权标准产生的义务以及特定群体人权产生的义务,对毒品政策采取平衡、综合和基于人权的方法。关于《准则》和联合国条约规定的长期义务,加拿大必须对基于人权、以人为本和公共卫生的方法做出更有力、更具体的承诺。这种方法必须致力于使吸毒者非刑罪化,并包括使为个人消费而持有、购买和种植毒品的行为非刑罪化。在本报告中,我们将首先介绍加拿大毒品法律的法律背景。接下来,我们将概述民间团体、各级政府、众议院和参议院目前提出的法律改革建议。最后,我们将提出三阶段改革方法和一系列有针对性的建议。
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引用次数: 0
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