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Conservation narratives and bibliogrammatic networks in the conservation landscape 保护景观中的保护叙事和书目网络
IF 2.7 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Pub Date : 2023-02-07 DOI: 10.1017/S0376892923000012
A. Troumbis, Haralambos Sideropoulos, Maria Gialeli, Georgios K. Vasios
Summary The analysis of conservation narratives primarily resides in the methods and techniques of social sciences, focusing mainly on uncovering advocacy versus critical lines of thought in the complex mosaic of arguments around institutional actors and the public. Researchers have previously proposed an archetypal scheme in which the core conservation narratives and their conceptual interrelations are classified. This report explores the feasibility of coupling such a traditional method with techniques emanating from quantitative linguistics, network analysis and bibliometry. The neologic metaphor of the Anthropause is purposely added to long-established narratives to examine its potential effects on the conservation narratives landscape. The results show that this metaphor reorganizes the mentally constructed connections between flag narratives and symbolic lexical units.
对保护叙事的分析主要依赖于社会科学的方法和技术,主要侧重于在围绕机构行为者和公众的复杂争论中揭示倡导与批判的思想路线。研究人员先前提出了一个原型方案,其中核心保护叙事及其概念相互关系被分类。本报告探讨了将这种传统方法与定量语言学、网络分析和文献计量学等技术相结合的可行性。人类暂停的新隐喻被有意添加到长期建立的叙述中,以检查其对保护叙事景观的潜在影响。结果表明,这一隐喻重新组织了标志叙事与符号词汇单位之间的心理建构联系。
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引用次数: 1
Grass fires and road structure influence plant invasions in a critical wildlife habitat in north-eastern India 在印度东北部一个重要的野生动物栖息地,草火和道路结构影响了植物的入侵
IF 2.7 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Pub Date : 2023-02-03 DOI: 10.1017/S0376892923000024
Subhamoy Banerjee, Amitabha Das, Masidur Rahman, Swapnil Bhowal, Dhritiman Das, R. John
Summary One of the multiple threats to protected areas worldwide, invasive plant species have the potential to decrease biodiversity and ecosystem function. We studied changes in infestation by two widespread invasive plant species – Chromolaena odorata and Mikania micrantha – in India’s Manas National Park, a critical conservation site for threatened flora and fauna. Based on field surveys in 2011 and 2019, we found that C. odorata and M. micrantha were present in most of the sampled plots and had newly invaded over 20% of the plots. However, the abundance of M. micrantha decreased in 45% of the plots while C. odorata increased in >50% of the plots. We used a decision tree-based regression with environmental variables as predictors to generate the distribution, abundance and invasion risk maps of the two species. Among environmental variables, road proximity and fire frequency had the strongest influences, respectively, on C. odorata and M. micrantha. Invaded quadrats exhibited lower native-plant diversity than non-invaded quadrats, and C. odorata specifically had a strong negative association with native-plant community structure. These invasive species have increased their range and abundance, and our predicted invasion risk maps indicate the areas where management intervention is urgently needed.
摘要作为世界各地保护区面临的多重威胁之一,入侵植物物种有可能降低生物多样性和生态系统功能。我们在印度马纳斯国家公园研究了两种广泛入侵的植物物种——蝴蝶兰和薇甘菊——的侵扰变化,马纳斯是受威胁动植物的重要保护地。根据2011年和2019年的实地调查,我们发现大部分采样地块中都有气味C.odorata和薇甘菊,并且新入侵了20%以上的地块。然而,在45%的地块中,薇甘菊的丰度下降,而在>50%的地块中。我们使用基于决策树的回归,以环境变量为预测因子,生成了这两个物种的分布、丰度和入侵风险图。在环境变量中,道路邻近度和火灾频率分别对气味草和薇甘菊的影响最大。入侵样方表现出比未入侵样方更低的本地植物多样性,气味C.odorata与本地植物群落结构具有强烈的负相关。这些入侵物种的范围和数量都有所增加,我们预测的入侵风险图表明了迫切需要管理干预的领域。
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引用次数: 0
Jaguars and wild pigs indicate protected area connectivity in the south-east Atlantic Forest (Brazil) 美洲虎和野猪表明东南大西洋森林的保护区连通性(巴西)
IF 2.7 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Pub Date : 2023-01-30 DOI: 10.1017/s0376892922000479
Maitê Packer Silva, K. Massi, R. Negri, F. Pedrosa
The Atlantic Forest of South America has undergone major changes due to urban and agriculture/pasture extension, resulting in a highly fragmented biome. Protected areas, created to ensure the biodiversity conservation of this biome, need to be connected for long-term landscape integrity. We aimed to quantify connectivity among protected areas in the south-east Atlantic Forest using two species with different environmental requirements: a threatened species with high requirements, the jaguar Panthera onca; and an exotic species with low requirements, the wild pig Sus scrofa. Our methods included expert opinion, and Circuitscape and least-cost-path analyses. We hypothesized that the patchy and altered landscape would not support the connectivity of jaguars but would allow wild pigs to transit. In fact, we found connectivity for both species, but there were more connectivity opportunities for wild pigs. The connection between Serra do Mar (and Serra do Mar state park) and Serra da Mantiqueira (Mantiqueira Mosaic) is narrow but possible to traverse through some protected areas of sustainable use and private reserves, highlighting the importance of these to structural landscape connectivity for the studied species in this region. The same connectivity that allows the transit of the native jaguar with high environmental requirements also allows the invasive wild pig to move through the landscape, which is worrisome.
由于城市和农业/牧场的扩展,南美洲的大西洋森林发生了重大变化,导致生物群落高度分散。为确保该生物群落的生物多样性保护而设立的保护区需要连接起来,以实现长期的景观完整性。我们的目标是使用两个具有不同环境要求的物种来量化东南大西洋森林保护区之间的连通性:一个具有高要求的濒危物种,美洲豹;以及一种要求较低的外来物种,野猪Sus scrofa。我们的方法包括专家意见、Circuitscape和最低成本路径分析。我们假设,不完整和变化的景观不会支持美洲豹的连通性,但会允许野猪过境。事实上,我们发现了这两个物种的连通性,但野猪有更多的连通性机会。Serra do Mar(和Serra do Mari州立公园)和Serra da Mantiqueira(Mantiquera Mosaic)之间的连接很窄,但可以穿过一些可持续使用的保护区和私人保护区,这突出了这些保护区对该地区研究物种的结构景观连接的重要性。同样的连通性允许具有高环境要求的本地美洲豹过境,也允许入侵的野猪在景观中移动,这令人担忧。
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引用次数: 4
Out of the frying pan and into the fire: effects of volcanic heat and other stressors on the conservation of a critically endangered plant in Hawai‘i 走出煎锅,走进火中:火山热和其他压力源对夏威夷一种极度濒危植物保护的影响
IF 2.7 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Pub Date : 2023-01-06 DOI: 10.1017/S0376892922000480
N. Gill, Jeffery K. Stallman, L. Pratt, J. Lewicki, T. Elias, P. Nadeau, S. Yelenik
Summary Loss of local biodiversity resulting from abrupt environmental change is a significant environmental problem throughout the world. Extinctions of plants are particularly important yet are often overlooked. Drawing from a case in Hawai‘i, a global hotspot for plant and other extinctions, we demonstrate an effort to better understand and determine priorities for the management of an endangered plant (‘Ihi makole or Portulaca sclerocarpa) in the face of rapid and extreme environmental change. Volcanic heat emissions and biological invasions have anecdotally been suggested as possible threats to the species. We integrated P. sclerocarpa outplanting with efforts to collect geological and ecological data to gauge the role of elevated soil temperatures and invasive grasses in driving P. sclerocarpa mortality and population decline. We measured soil temperature, soil depth, surrounding cover and P. sclerocarpa survivorship over three decades. The abundance of wild P. sclerocarpa decreased by 99.7% from the 1990s to 2021. Only 51% of outplantings persisted through 3–4 years. Binomial regression and structural equation modelling revealed that, among the variables we analysed, high soil temperatures were most strongly associated with population decline. Finding the niche where soil temperatures are low enough to allow P. sclerocarpa survival but high enough to limit other agents of P. sclerocarpa mortality may be necessary to increase population growth of this species.
环境突变导致的局部生物多样性丧失是一个全球性的重大环境问题。植物的灭绝尤为重要,但往往被忽视。以全球植物和其他物种灭绝热点地区夏威夷为例,我们展示了在面对快速和极端的环境变化时,如何更好地理解和确定濒危植物(马齿苋或马齿苋)管理的优先事项。火山热排放和生物入侵被认为是该物种可能面临的威胁。本研究通过收集地质和生态数据,综合考虑了土壤温度升高和外来入侵禾草对小檗死亡率和种群数量下降的影响。我们测量了30多年来的土壤温度、土壤深度、周围覆盖度和硬木的存活率。从20世纪90年代到2021年,野生硬木的丰度下降了99.7%。只有51%的外植植物能持续种植3-4年。二项回归和结构方程模型显示,在我们分析的变量中,高土壤温度与人口下降的关系最为密切。寻找一个土壤温度足够低的生态位,使硬木可以存活,但又足够高,以限制硬木其他病原体的死亡率,这可能是增加该物种种群增长的必要条件。
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引用次数: 1
IPBES as a transformative agent: opportunities and risks IPBES作为变革者:机遇与风险
IF 2.7 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Pub Date : 2022-12-14 DOI: 10.1017/s0376892922000467
Karin M. Gustafsson, Erik Hysing
The Intergovernmental Science–Policy Platform for Biodiversity and Ecosystem Services (IPBES) has played an important role in assessing knowledge and raising awareness of biodiversity loss, and it is now also mandated to assess and support processes of transformative change. This perspective paper argues that the transformative change assessment entails key elements of transformative agency, which, along with the performative role of IPBES, makes it relevant to re-conceptualize the organization as a transformative agent. This new role will change IPBES and brings attention to risks related to undermining the credibility, relevance and legitimacy of IPBES, but it also brings opportunities for innovations that may strengthen the organization, including furthering public reasoning, acknowledging ambiguities and disagreements, ensuring scientific autonomy and balancing governmental power in the organization. As IPBES takes on the fundamental challenge of transformative change, critical scrutiny and democratic debate regarding its function as a political actor are more important than ever.
生物多样性和生态系统服务政府间科学政策平台(IPBES)在评估知识和提高对生物多样性丧失的认识方面发挥了重要作用,现在它还被授权评估和支持变革进程。本文认为,变革评估需要变革代理的关键要素,这与IPBES的执行角色一起,使其与将组织重新概念化为变革代理相关。这一新角色将改变IPBES,并引起人们对破坏IPBES可信度、相关性和合法性的风险的关注,但它也带来了可能加强该组织的创新机会,包括进一步促进公共推理、承认歧义和分歧、确保科学自治和平衡组织中的政府权力。随着IPBES面临变革的根本挑战,关于其作为政治行动者的功能的批判性审查和民主辩论比以往任何时候都更加重要。
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引用次数: 0
Public and private protected areas can work together to facilitate the long-term persistence of mammals 公共和私人保护区可以共同努力,促进哺乳动物的长期生存
IF 2.7 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Pub Date : 2022-11-25 DOI: 10.1017/s0376892922000455
Ielyzaveta M. Ivanova, C. Cook
The conservation performance of protected areas (PAs) is typically measured according to whether species are likely to be present within PAs. However, to attain the goal of long-term conservation it is important to consider the performance of PAs in terms of their ability to support the persistence of the species they contain. We used the concept of minimum viable population (MVP) size to examine the potential for PAs within a large national PA network to support mammal species over the long term. By developing habitat models for each species and estimating the area required to support the MVP size for each species, we identified whether each PA had sufficient habitat to meet the species’ requirements. We found that as a whole the PA network is able to support at least one viable population for all species studied. However, the extent of protection offered to species by the PA network varies considerably, with many PAs not able to support viable populations of individual species on their own. By understanding the capacity of PAs to provide long-term protection to species, our findings can guide strategies to increase the resilience of PA networks as a whole, including by improving habitat quality within and connectivity between PAs.
保护区的保护绩效通常根据保护区内是否可能存在物种来衡量。然而,为了实现长期保护的目标,重要的是要考虑PA在支持其所含物种持久性方面的表现。我们使用最小存活种群(MVP)规模的概念来检验大型国家PA网络中PA长期支持哺乳动物物种的潜力。通过为每个物种开发栖息地模型,并估计支持每个物种MVP大小所需的面积,我们确定了每个PA是否有足够的栖息地来满足物种的要求。我们发现,作为一个整体,PA网络能够支持所有研究物种的至少一个可行种群。然而,PA网络为物种提供的保护程度差异很大,许多PA无法独自支持单个物种的存活种群。通过了解PA为物种提供长期保护的能力,我们的研究结果可以指导提高整个PA网络弹性的策略,包括提高PA内部的栖息地质量和PA之间的连通性。
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引用次数: 1
Temporal differences in snail diversity responses to wildfires and salvage logging 蜗牛多样性对野火和抢救性伐木反应的时间差异
IF 2.7 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Pub Date : 2022-11-18 DOI: 10.1017/s0376892922000443
R. Puig-Gironès, X. Santos, Vicenç Bros
Species tend to peak in abundance at different times after fires. Over time, species richness (α) and landscape heterogeneity are prone to increase and lead to greater between-site diversity (β). However, post-fire salvage logging can reduce β-diversity, both directly and through its influence on succession. The as-yet understudied response of land snails to long-term habitat modification after wildfires and forest management is important for decision-making in forest restoration and conservation. We expected to detect differences in land snails and diversity in both the short and long term and between treatments in a natural park in the Mediterranean Basin. However, our results showed that post-fire management was a non-significant variable for snail community diversity, the exception being open-habitat endemic species. Plant succession and leaf litter cover were the main variables that shaped snail diversity and abundance over time after fires. Eighteen years after a fire, the land snail diversity had improved and the community composition had diversified, irrespective of the post-fire treatment, but threatened species disappeared and the total snail numbers had notably declined. To preserve threatened open-habitat species, prescribed fires and livestock grazing are recommended in combination with mature areas that can act as shelters where forest snails can recover from future disturbances.
火灾发生后,物种数量往往在不同时间达到峰值。随着时间的推移,物种丰富度(α)和景观异质性倾向于增加,并导致更大的站点间多样性(β)。然而,火灾后打捞测井可以直接或通过其对演替的影响来降低β-多样性。野火和森林管理后,陆地蜗牛对长期栖息地改变的反应尚未得到充分研究,这对森林恢复和保护的决策很重要。我们希望在地中海盆地的一个自然公园中检测到陆地蜗牛的短期和长期差异以及不同处理之间的多样性。然而,我们的研究结果表明,火灾后的管理对蜗牛群落多样性来说是一个不显著的变量,开放栖息地特有物种除外。火灾发生后,随着时间的推移,植物演替和落叶覆盖是影响蜗牛多样性和丰度的主要变量。火灾发生18年后,无论火灾后的处理如何,陆地蜗牛的多样性都有所改善,群落组成也有所多样化,但受威胁的物种消失了,蜗牛总数显著下降。为了保护受威胁的开放栖息地物种,建议将规定的火灾和牲畜放牧与成熟地区结合起来,这些成熟地区可以作为森林蜗牛从未来干扰中恢复的避难所。
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引用次数: 0
Invasive species policy in Brazil: a review and critical analysis 巴西入侵物种政策:回顾与批判性分析
IF 2.7 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Pub Date : 2022-11-16 DOI: 10.1017/s0376892922000406
Larissa Faria, B. Carvalho, Laís Carneiro, N. Miiller, C. R. Pedroso, T. V. Occhi, L. Tonella, J. Vitule
Biological invasions represent one of the main threats to biodiversity and a recognized economic burden worldwide; the issue has been included in the conservation agenda such as the Convention on Biological Diversity (CBD). Brazil is a signatory country of the CBD; however, the number of alien species records in its territory is continuously rising. To evaluate the invasive alien species (IAS) policy in Brazil, we reviewed the legislation delineating historical trends to identify potential gaps and avenues for improvement. We consulted several websites using keywords related to invasions in order to track legal instruments such as laws, decrees and regulations. We classified the documents regarding their main aims with regard to IAS, taxon and environment of interest. We found 85 legal instruments in force related to IAS published in the federal sphere up to October 2021, with decrees being the most common type. Most documents were classified as ‘control’ and ‘prevention’ and were related to all taxa and environments. Two species (wild boar Sus scrofa and golden mussel Limnoperna fortunei) have more specific legislation, probably due to their conspicuous economic impacts. We discuss policy gaps and their implications for the efficient management and prevention of new IAS introductions to the country.
生物入侵是对生物多样性的主要威胁之一,也是全世界公认的经济负担;该问题已被列入《生物多样性公约》等保护议程。巴西是《生物多样性公约》的签署国;然而,在其领土上的外来物种记录数量正在不断增加。为了评估巴西的外来入侵物种(IAS)政策,我们审查了描绘历史趋势的立法,以确定潜在的差距和改进途径。我们使用与入侵有关的关键词咨询了几个网站,以跟踪法律、法令和法规等法律文书。我们根据国际会计准则、分类单元和感兴趣的环境对文件的主要目的进行了分类。我们发现,截至2021年10月,联邦领域发布了85份与《国际会计准则》相关的有效法律文书,其中法令是最常见的类型。大多数文献被分类为“控制”和“预防”,并与所有分类群和环境有关。两个物种(野猪Sus scrofa和金贻贝Limnoperna fortunei)有更具体的立法,可能是因为它们显著的经济影响。我们讨论了政策差距及其对有效管理和防止向该国引入新的国际会计准则的影响。
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引用次数: 4
ENC volume 49 issue 4 Cover and Front matter ENC第49卷第4期封面和封面问题
IF 2.7 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Pub Date : 2022-11-04 DOI: 10.1017/s037689292200042x
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引用次数: 0
ENC volume 49 issue 4 Cover and Back matter ENC第49卷第4期封面和封底
IF 2.7 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Pub Date : 2022-11-04 DOI: 10.1017/s0376892922000431
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引用次数: 0
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