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781.
Some alien species cause substantial impacts, yet most are innocuous. Given limited resources, forecasting risks from alien species will help prioritise management. Given that risk assessment (RA) approaches vary widely, a synthesis is timely to highlight best practices. We reviewed quantitative and scoring RAs, integrating > 300 publications into arguably the most rigorous quantitative RA framework currently existing, and mapping each study onto our framework, which combines Transport, Establishment, Abundance, Spread and Impact (TEASI). Quantitative models generally measured single risk components (78% of studies), often focusing on Establishment alone (79%). Although dominant in academia, quantitative RAs are underused in policy, and should be made more accessible. Accommodating heterogeneous limited data, combining across risk components, and developing generalised RAs across species, space and time without requiring new models for each species may increase attractiveness for policy applications. Comparatively, scoring approaches covered more risk components (50% examined > 3 components), with Impact being the most common component (87%), and have been widely applied in policy (> 57%), but primarily employed expert opinion. Our framework provides guidance for questions asked, combining scores and other improvements. Our risk framework need not be completely parameterised to be informative, but instead identifies opportunities for improvement in alien species RA.  相似文献   
782.
From bipartisan origins and a laudable intent, the No Child Left Behind (Act) of 2001 has profoundly altered the condition of art education. A historical vantage point and review of literature reveals the current status of pending arts language revisions to the NCLB Act, as well as a pressing need to examine the key recommendations and to consider a blend of the proposals from the National Education Task Force, the Study Group on the Lost Curriculum, and the Arts Education Working Group. This current research possesses significant implications for NCLB arts language and provides the opportunity for a unified message for revisions, leaving no child behind in art education.  相似文献   
783.
Comparative studies on the extension of rights, including naturalization rights, to migrants have grown exponentially. We propose a theoretically informed analytical framework to examine state policies relating to the extension of rights to aliens and citizenship acquisition. It consists of three frames: the rights frame, the citizenship eligibility frame and the earned citizenship frame. The framework enables the examination and mapping of policy developments in this broad field, while also elucidating how the notions of membership, status and identity – key constructs associated with the nation state – are articulated in states’ policy attempts to ‘integrate’ migrants, and, importantly, how they are reformulated over time. In the process, the framework nuances ideas about the coherence and stability of national citizenship regimes, brings greater conceptual clarity to the field, and delimits and delineates the citizenship construct. It also provides scope for additional and new comparative insights within and across states.  相似文献   
784.
Although numerous species distribution models have been developed, most were based on insufficient distribution data or used older climate change scenarios. We aimed to quantify changes in projected ranges and threat level by the years 2061–2080, for 12 European forest tree species under three climate change scenarios. We combined tree distribution data from the Global Biodiversity Information Facility, EUFORGEN, and forest inventories, and we developed species distribution models using MaxEnt and 19 bioclimatic variables. Models were developed for three climate change scenarios—optimistic (RCP2.6), moderate (RCP4.5), and pessimistic (RPC8.5)—using three General Circulation Models, for the period 2061–2080. Our study revealed different responses of tree species to projected climate change. The species may be divided into three groups: “winners”—mostly late‐successional species: Abies alba, Fagus sylvatica, Fraxinus excelsior, Quercus robur, and Quercus petraea; “losers”—mostly pioneer species: Betula pendula, Larix decidua, Picea abies, and Pinus sylvestris; and alien species—Pseudotsuga menziesii, Quercus rubra, and Robinia pseudoacacia, which may be also considered as “winners.” Assuming limited migration, most of the species studied would face a significant decrease in suitable habitat area. The threat level was highest for species that currently have the northernmost distribution centers. Ecological consequences of the projected range contractions would be serious for both forest management and nature conservation.  相似文献   
785.
王辰星  朱捷缘  郑天晨  严岩  徐舒 《生态学报》2019,39(21):8193-8199
第十届生态系统服务伙伴关系全球大会(10th Ecosystem Services Partnership World Conference)于2019年10月20日-10月26日在德国下萨克森州首府汉诺威市召开。本次会议主题为"生态系统服务科学、政策与实践前进中的十年:面向一个可持续的未来",旨在探讨生态系统服务科学研究、政策支持、实践等方面的热点问题,交流最新研究成果,并寻求未来可持续发展的绿色解决方案,进一步推动生态系统服务研究与生态环境保护政策及实践的有机结合。本文对本次会议的开幕式、7场特邀报告,48个主题会场、160个海报展览等内容进行述评,大会内容围绕当前生态系统服务领域的前沿与热点领域展开,包括生态系统服务评估方法与模型,生态系统服务与可持续性、生物多样性、气候变化、土地利用变化与景观格局、区域政策分析与决策支持、城市绿色基础设施等方向。  相似文献   
786.
郭甲嘉  沈大军 《生态学报》2022,42(15):6430-6438
随着经济社会的发展,中国自然保护地体系经历了由以自然保护区为主体向以国家公园为主体的重要变迁。应用多源流理论分析了中国自然保护地体系变迁。从内在逻辑、民主化程度和变量控制三个方面分析了多源流理论在中国保护地变迁研究中的适用性;从问题源流、政治源流和政策源流三个方面分析了中国自然保护地体系变迁的主要影响因素,梳理了变迁的逻辑路线,总结了变迁的内容,变迁内容包括管理客体、管理主体和管理手段三个方面。结果表明:中国自然保护地体系变迁是问题源流、政治源流和政策源流共同作用的必然结果,表现在问题源流中的指标数据和问题反馈促进了政策源流中政策建议和方案的提出,而焦点事件与政治源流中执政理念的冲突对变迁起到了重要的催化作用;政策源流存在渐进式完善过程,尤其是国家公园体制试点对政策源流的发展起到关键作用。此次变迁的逻辑路径主要包含三股源流的相互作用,通过引入国家公园重塑中国自然保护地体系,促进其系统性、整体性和协同性发展。  相似文献   
787.
Pablo Jaramillo 《Ethnos》2013,78(4):464-489
This article analyses the co-occurrence of two concerns often expressed by indigenous leaders involved with reparations for victims of paramilitaries in Colombia. These concerns revolve around discomfort with the intense use of hegemonic ‘gender’ discourses in the context of the reparations, and a feeling that leaders' involvement in the latter brings about a betrayal of the family and of themselves. By engaging with the local category of eirruku (flesh), I argue that ways of engaging women in reparations entail the commoditisation of caring relationships. This article, based on 13 months of fieldwork with an indigenous organisation and the communities integrated into it between 2007 and 2008, contributes to the understanding of the articulation of gender and ethnic/racial identification in the context of contemporary forms of governance of indigenous peoples, while delving into ‘carnality’ as a concept to understand gendered forms of reproduction, reparation and selfhood.  相似文献   
788.
《Anthrozo?s》2013,26(2):165-184
ABSTRACT

This study describes an online public engagement experiment aimed at investigating how acceptance of animal-based research is affected by: (a) the presence of regulations that govern the use of nonhuman animals in laboratories, (b) the invasiveness of procedures, and (c) the use of genetically modified (GM) animals. To meet these aims, participants were asked if they were willing to accept the use of pigs in different scenarios involving agricultural research. Two-thirds of the 681 participants were female and the majority (58%) were young (19–29 years old) with college or university level education (62%). Participants came from 26 different countries, with the United States, Canada, and the United Kingdom being the top three countries represented. Participants who self-identified as being vegetarians, familiar with animal welfare, animal advocates, environmental advocates, and familiar with animal research were significantly more likely to be opposed to animal-based research. Older participants were significantly less likely to oppose animal-based research. Support significantly decreased when animal-based research involved an invasive procedure or GM animals. Support for invasive research significantly increased when regulation was in place, but regulation had less effect on acceptance of GM animal use. Comments provided by participants illustrated different decision-making strategies regarding different types of animal-based research. Given the increasing use of GM animals in research, more effort is required to understand people's concerns regarding this type of animal use and to determine how these concerns should be reflected in policy.  相似文献   
789.
Richard Huxtable 《Bioethics》2014,28(9):472-480
Compromise on moral matters attracts ambivalent reactions, since it seems at once laudable and deplorable. When a hotly‐contested phenomenon like assisted dying is debated, all‐or‐nothing positions tend to be advanced, with little thought given to the desirability of, or prospects for, compromise. In response to recent articles by Søren Holm and Alex Mullock, in this article I argue that principled compromise can be encouraged even in relation to this phenomenon, provided that certain conditions are present (which I suggest they are). In order to qualify as appropriately principled, the ensuing negotiations require disputants to observe three constraints: they should be suitably reflective, reliable and respectful in their dealings with one another. The product that will result from such a process will also need to split the difference between the warring parties. In assisted dying, I argue that a reduced offence of ‘compassionate killing’ can achieve this. I acknowledge, however, that splitting the difference can induce splitting headaches, as there remain certain questions to be answered. Hopefully, however, sufficient work is done here to defend attempts to occupy the middle ground, whether these relate to assisted dying specifically or to other disputed moral matters.  相似文献   
790.
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