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Assessing Impacts to National Park Visitation From COVID-19 评估COVID-19对国家公园游客的影响
IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-01-01 DOI: 10.1525/cse.2021.1434075
J. Jenkins, Felber J. Arroyave, Madeline Brown, Jullianna Chavez, Johnny Ly, Haania Origel, Jacob Wetrosky
Yosemite National Park is a popular tourist destination with high visitation levels that have increased throughout the summer season over the past several decades. Like with other protected areas, high visitation levels pose challenges for coordinating resources, infrastructural capacity, and visitor experiences. Use limits, including rationing vehicle entry at gates by reservation, are one possible strategy to manage visitation levels. After an initial full closure, the park chose to operationalize a multiphased permit system for day-use and overnight entry over the course of the pandemic in accordance with local and national guidelines for operational safety. While park closures and other entry restrictions have been common in recent years due to wildland fires and other natural hazards, the pandemic-related entry limits represent a nearly yearlong experiment. The prolonged entry ration along with restrictions to group activities has limited visitation and potentially reduced transmission of the novel coronavirus. We review the per capita COVID-19 case count in surrounding counties given the flow of tourism from outside the region, assess the changes in access to the park with the novel reservation system, compare monthly visitation during the 2020 use limits with prior decadal averages, detail how high visitation levels and crowding persist, and review the Park’s plans for an ongoing day-use permit system. We conclude with the ongoing challenges managers face in light of continued high visitation. Readers will be able to debate the efficacy of use limits and what may be a sustainable level of visitation for the park.
约塞米蒂国家公园是一个受欢迎的旅游目的地,在过去的几十年里,整个夏季的游客数量都在增加。与其他保护区一样,高访问量对协调资源、基础设施能力和游客体验提出了挑战。使用限制,包括通过预订配给车辆进入大门,是管理游客水平的一种可能策略。在最初的全面关闭后,该公园根据当地和国家的运营安全指导方针,选择在大流行期间实施分阶段的日间使用和过夜进入许可制度。近年来,由于野火和其他自然灾害,公园关闭和其他入境限制很常见,但与大流行有关的入境限制是一项为期近一年的实验。延长入境限令以及限制集体活动限制了游客数量,并可能减少新型冠状病毒的传播。考虑到该地区以外的游客流量,我们审查了周边县的人均COVID-19病例数,评估了使用新型预订系统进入公园的变化,比较了2020年使用限制期间的每月访问量与之前的十年平均值,详细说明了高访问量和拥挤程度,并审查了公园正在进行的日间使用许可制度的计划。最后,我们总结了鉴于持续的高访问量,管理人员面临的持续挑战。读者将能够讨论使用限制的有效性,以及什么是公园可持续的游客水平。
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引用次数: 6
The Forest Extent in 2015 and the Drivers of Forest Change Between 2000 and 2015 in Papua New Guinea 巴布亚新几内亚2015年森林面积和2000 - 2015年森林变化的驱动因素
IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-01-01 DOI: 10.1525/cse.2021.1442018
Gewa Gamoga, R. Turia, H. Abe, Masamichi Haraguchi, Oala Iuda
Obtaining high-quality information on forest and land use is essential to analysis of climate change, sustainable forest and land use planning. Papua New Guinea’s (PNG) forest and land cover/land use has been well documented using different methods, land classifications and forest definitions. These studies have delivered significant results indicating a general decline in the forest extent, with the drivers of land use changes attributed to demographic and economic development. This study is a component of the larger National Forest Inventory for PNG within which we sought to stratify and quantify forest and land use change by applying a systematic point-based sampling approach utilizing Open Foris—Collect Earth and freely available satellite images. A total of 25,279 sample points was assessed to determine the PNG’s forest extent and the forest change drivers based on the national forest definition. Analysis revealed that in 2015, about 78% of the country was covered with 12 forest types, and more than 23% of the total forest area has been degraded through anthropogenic activities. Analysis also revealed that between 2000 and 2015, about 0.66% of the total forest area was deforested, and subsistence agriculture was the main driver (0.45%), followed by palm oil planting (0.23%). During the same period, about 6.6% of the total forest area was degraded, and commercial logging was the main cause (6.1%). Apart from Global Forest Watch, this study established more forest than previously estimated in earlier studies. This is due to the fundamental differences in the purposes and methodologies used.
获得关于森林和土地利用的高质量信息对于分析气候变化、可持续森林和土地利用规划至关重要。使用不同的方法、土地分类和森林定义,对巴布亚新几内亚的森林和土地覆盖/土地利用进行了详细的记录。这些研究得出了重要的结果,表明森林面积普遍下降,土地利用变化的驱动因素归因于人口和经济发展。这项研究是巴布亚新几内亚国家森林清查的一个组成部分,我们试图通过利用Open Foris-Collect Earth和免费卫星图像,采用系统的点为基础的采样方法,对森林和土地利用变化进行分层和量化。根据国家森林定义,共评估了25279个样点,以确定巴布亚新几内亚的森林范围和森林变化驱动因素。分析显示,2015年,全国约78%的面积被12种森林类型覆盖,超过23%的森林面积因人为活动而退化。分析还显示,2000 - 2015年间,约0.66%的森林面积被砍伐,自给农业是主要驱动力(0.45%),其次是棕榈油种植(0.23%)。同期森林退化率约为6.6%,商业采伐是主要原因(6.1%)。除了全球森林观察之外,这项研究确定的森林比先前研究中估计的要多。这是由于所使用的目的和方法的根本差异。
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引用次数: 8
The Pinelands Development Credit Program 松林开发信贷计划
IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-01-01 DOI: 10.1525/cse.2021.1546241
J. Howell, Mahbubur Meenar, Christina Friend, Jack Kelly, Owen Feeny
The “Pine Barrens” are a UNESCO-designated biosphere reserve encompassing about 1.1 million acres in southern New Jersey. A state agency, the New Jersey Pinelands Commission, in conjunction with county and local governments, works to implement land management and environmental protection goals via a comprehensive management plan. The pinelands development credit (PDC) program is one tool aimed specifically at land preservation outcomes. The PDC program is a regional “transfer of development rights” market allowing landowners to sell their rights to further develop their property and enter their land into permanent protected status. Since the program’s inception in 1982, over 55,000 acres of sensitive and rare ecosystem have been protected; the more than 1,200 transactions account for US$63 M of economic value. The PDC program is a clear illustration of the role that financial instruments and market mechanisms can play in achieving environmental protection outcomes. This case study offers an overview of the pinelands area, PDC program, and the transfer of development rights concept before examining the PDC program and its outcomes in greater detail. While the program has been hailed as a success, it will face challenges in the coming years, including a relatively inefficient process for converting PDCs into protected lands and the question of how the program can evolve once eligible lands become more scarce.
“松林”是联合国教科文组织指定的生物圈保护区,位于新泽西州南部,占地约110万英亩。新泽西州松林委员会是一个州立机构,与县和地方政府合作,通过一项全面的管理计划,努力实施土地管理和环境保护目标。松林开发信贷(PDC)项目是一个专门针对土地保护成果的工具。PDC项目是一个区域“开发权转让”市场,允许土地所有者出售他们的权利,以进一步开发他们的财产,并使他们的土地进入永久保护状态。自1982年该项目启动以来,超过55,000英亩的敏感和稀有生态系统得到了保护;1200多笔交易的经济价值达6300万美元。PDC计划清楚地说明了金融工具和市场机制在实现环境保护成果方面可以发挥的作用。本案例研究概述了松林面积、PDC项目和开发权转让概念,然后详细研究了PDC项目及其成果。尽管该项目被誉为成功,但它在未来几年将面临挑战,包括将PDCs转化为受保护土地的相对低效的过程,以及一旦合格的土地变得更加稀缺,该项目如何发展的问题。
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引用次数: 0
Using Case Studies to Improve the Critical Thinking Skills of Undergraduate Conservation Biology Students 用案例研究提高保护生物学本科生的批判性思维能力
IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-01-01 DOI: 10.1525/cse.2021.1536396
Ana L. Porzecanski, A. Bravo, M. Groom, L. Dávalos, N. Bynum, B. J. Abraham, J. Cigliano, Carol Griffiths, D. Stokes, M. Cawthorn, Denny S. Fernández, Lauri Freeman, T. Leslie, T. Theodose, D. Vogler, E. Sterling
Critical thinking (CT) underpins the analytical and systems-thinking capacities needed for effective conservation in the 21st century but is seldom adequately fostered in most postsecondary courses and programs. Many instructors fear that devoting time to process skills will detract from content gains and struggle to define CT skills in ways relevant for classroom practice. We tested an approach to develop and assess CT in undergraduate conservation biology courses using case studies to address both challenges. We developed case studies with exercises to support content learning goals and assessment rubrics to evaluate student learning of both content and CT skills. We also developed a midterm intervention to enhance student metacognitive abilities at a light and intensive level and asked whether the level of the intervention impacted student learning. Data from over 200 students from five institutions showed an increase in students’ CT performance over a single term, under both light and intensive interventions, as well as variation depending on the students’ initial performance and on rubric dimension. Our results demonstrate adaptable and scalable means for instructors to improve CT process skills among undergraduate students through the use of case studies and associated exercises, aligned rubrics, and supported reflection on their CT performance.
批判性思维(CT)是21世纪有效保护所需的分析能力和系统思维能力的基础,但在大多数高等教育课程和项目中很少得到充分培养。许多教师担心,把时间花在过程技能上,会减损内容的收获,并努力以与课堂实践相关的方式定义CT技能。我们测试了一种在本科保护生物学课程中开发和评估CT的方法,使用案例研究来解决这两个挑战。我们开发了带有练习的案例研究,以支持内容学习目标和评估标准,以评估学生对内容和CT技能的学习。我们还开发了一种中期干预,在轻度和强化水平上提高学生的元认知能力,并询问干预水平是否影响学生的学习。来自五所院校的200多名学生的数据显示,在一个学期内,在轻度和强化干预下,学生的CT表现都有所提高,并且根据学生的初始表现和标题维度而变化。我们的研究结果展示了适应性和可扩展的方法,教师可以通过案例研究和相关练习,统一的规则,以及对他们的CT表现的支持反思,来提高本科生的CT处理技能。
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引用次数: 5
Disturbance Impacts of Logging on Ground Herbaceous Plant Species Richness, Diversity, and Composition of Lowland Rainforest of Papua New Guinea 伐木干扰对巴布亚新几内亚低地雨林地上草本植物物种丰富度、多样性和组成的影响
IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-01-01 DOI: 10.1525/cse.2021.1517753
P. Lamei, F. Attorre, R. Testolin, M. De Sanctis, R. Turia, Abe Hitofumi
The impact of logging activities on species richness, diversity, and composition of the ground herbaceous layer of the lowland forest of Papua New Guinea was analyzed. Data from the first multipurpose National Forest Inventory were collected in 52 plots from logged and unlogged low altitude forest on plains and fans (P) and forest on uplands (H) in Madang, West New Britain and Central Provinces. The abundance of 10,609 ground herbaceous plants classified in 174 species from 103 genera and 35 families. Based on importance values, Arecaceae was the dominating family in both logged and unlogged P forest type, while Urticaceae and Arecaceae were dominating respectively in logged and unlogged H forest type. At species level, Donax canniformis and Elatostema beccarii are dominating the P type, and Elatostema novoguineensis and Selaginella durvillei the H type. Analysis of species richness, diversity, and composition showed significant differences between the two types with the H type being richer and more diverse than P type. No differences emerged between logged and unlogged of both types, indicating that the current intensity of disturbance does not seem to have a significant impact on the ground herbaceous layer. Since herbaceous species are an important component of the tropical forest diversity, further inventories must be conducted along a wider elevation gradient to make these results more robust and better observe species turn over patterns and beta diversity.
分析了采伐活动对巴布亚新几内亚低地森林地面草本层物种丰富度、多样性和组成的影响。第一次多用途国家森林清查收集了马当、新不列颠西部和中部省份的平原和扇形低海拔森林(P)和高地森林(H)的52个样地的数据。陆地草本植物10609种,隶属于35科103属174种。从重要性值来看,槟榔科在采伐和未采伐的P林类型中均为优势科,而在采伐和未采伐的H林类型中分别占优势科和槟榔科。在种水平上,P型以食Donax canformis和beccarii Elatostema为主,H型以诺沃几内亚Elatostema novoguineensis和durvilselaginella为主。物种丰富度、多样性和组成分析表明,两种类型之间存在显著差异,H型比P型更丰富、更多样化。两种类型的伐木和未伐木之间没有差异,表明当前的干扰强度似乎对地面草本层没有显著影响。由于草本物种是热带森林多样性的重要组成部分,因此必须沿着更宽的海拔梯度进行进一步的调查,以使这些结果更可靠,并更好地观察物种更替模式和β多样性。
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引用次数: 3
Factors Influencing Water Quality Perceptions in an Urban and Rural Watershed in Southern Ecuador 影响厄瓜多尔南部城市和农村流域水质认知的因素
IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-01-01 DOI: 10.1525/cse.2021.1434937
Leontina M. Hormel, C. Wardropper, C. Scott, María Verónica Iñiguez Gallardo, David A. Roon, C. Armijos
River water quality and quantity are declining globally as a result of land use and population growth. Enhanced river management that includes input from local watershed residents is needed to sustain this resource. As an international framework, integrated water resources management (IWRM) aims to support inclusive governance of water systems. Ecuador is one of the countries that has looked to IWRM as a guide, though little research on water quality is available in the country. Our case study describes both the research process and outcomes of an integrated assessment of water quality and perceptions in the south Ecuador city of Loja, through which flow two rivers: Rio Zamora and Rio Malacatos. Our team sought to take both biophysical and perceptual measures of water quality in these rivers and tributaries and build interdisciplinary research skills among undergraduate and early graduate students in collaboration with faculty researchers from the Universidad Técnica Particular de Loja and the University of Idaho. In this case article, we concentrate on the process and results of the social scientific dimension of this interdisciplinary project, describing how surveys and interviews were used to build our understanding of the connections between the biophysical water quality measures and water quality perceptions of different communities within the watershed. Readers will learn about the possibilities of conducting interdisciplinary, international team projects to answer applied socioenvironmental questions along with challenges that should be anticipated when designing this kind of research.
由于土地利用和人口增长,全球河流水质和水量正在下降。需要加强河流管理,包括当地流域居民的投入,以维持这一资源。作为一个国际框架,综合水资源管理(IWRM)旨在支持水系统的包容性治理。厄瓜多尔是将水资源综合管理作为指导的国家之一,尽管该国对水质的研究很少。我们的案例研究描述了对厄瓜多尔南部城市Loja的水质和感知进行综合评估的研究过程和结果,该城市流经两条河流:里约热内卢Zamora和里约热内卢Malacatos。我们的团队试图对这些河流和支流的水质进行生物物理和感知测量,并与来自特洛亚大学和爱达荷大学的教师研究人员合作,在本科生和早期研究生中建立跨学科研究技能。在这篇案例文章中,我们专注于这个跨学科项目的社会科学维度的过程和结果,描述了如何使用调查和访谈来建立我们对生物物理水质测量与流域内不同社区水质感知之间联系的理解。读者将了解开展跨学科、国际团队项目的可能性,以回答应用社会环境问题,以及设计此类研究时应预见的挑战。
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引用次数: 4
Developing Collegial Relationships to Address Hurdles in Ex Situ Turtle Conservation on an Indonesian University Campus 发展学院关系以解决印度尼西亚大学校园迁地龟保护中的障碍
IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-01-01 DOI: 10.1525/cse.2021.1420816
A. Ruyani, D. Parlindungan, Patricia G. Patrick, C. Matthews
Building collegial international relationships is an important aspect of conservation and conservation education. The relationship relies on researchers understanding the local context of the conservation project and the sociocultural perspectives of all partners. Therefore, we situated our case study within sociocultural theory. Our case study focuses on the relationships and project work which developed between a biologist/science educator at the University of Bengkulu in Bengkulu, Sumatra, Indonesia, and a science education professor at the University of North Carolina Greensboro, Greensboro, NC, USA, who shared longtime interests in herpetology. Employing the sociocultural perspective, we describe the background of each University group leader and how their previous experiences led to the development of a partnership focused on turtle conservation. In this case study, we seek to understand the social and cultural development of the researchers’ relationship as they teamed to address the ex situ conservation challenges of working with terrestrial and semiaquatic turtles. An examination of the researchers’ partnership provides a framework for the analysis of the work accomplished and remaining and offers insights to others interested in collaborative international conservation projects.
建立学院的国际关系是保护和保护教育的一个重要方面。这种关系依赖于研究人员对保护项目的当地背景和所有合作伙伴的社会文化观点的理解。因此,我们将案例研究置于社会文化理论中。我们的案例研究侧重于印度尼西亚苏门答腊岛Bengkulu大学的生物学家/科学教育家与美国北卡罗来纳州Greensboro北卡罗来纳大学格林斯博罗分校的科学教育教授之间的关系和项目工作,他们对爬行动物学有着长期的兴趣。从社会文化的角度,我们描述了每个大学小组组长的背景,以及他们以前的经历如何导致了海龟保护伙伴关系的发展。在这个案例研究中,我们试图了解研究人员关系的社会和文化发展,因为他们合作解决了与陆生和半水生海龟一起工作的迁地保护挑战。研究人员的合作关系为分析已完成和剩余的工作提供了一个框架,并为其他对国际合作保护项目感兴趣的人提供了见解。
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引用次数: 0
Towards Capturing Human Well-Being-Nature Relationships in Poverty Assessments in Rural Malawi and Rwanda 在马拉维和卢旺达农村贫困评估中捕捉人与自然的关系
IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-01-01 DOI: 10.1525/cse.2021.1425104
M. Schaafsma, N. Gross-Camp
Despite repeated emphasis on the links between the natural environment and human well-being and the disproportionate and direct dependence of the rural poor on natural resources, these links have not been well addressed in poverty assessments. Common poverty profiles neither reflect the contribution of nature to well-being nor the multiple values and meanings that people ascribe to nature. Building on a conceptual grounding for including environmental components in well-being measures, our work aimed to determine for which components it is legitimate to do so according to the people whose well-being is measured. We developed a focus group discussion protocol to elicit perceptions of environment-well-being relationships in rural settings in Rwanda and Malawi. The protocol included a well-being free-listing exercise, a matching exercise linking the listed items to predefined well-being dimensions, and a discussion of environment-well-being connections. We found that severe environmental degradation, hazards, and conflicts over access to land and forests in these diverse rural areas are deeply and directly linked to well-being. Environmental changes such as flooding or extended drought led to losses of income, crops, and assets, as well as prolonged periods of psychological stress, constrained freedom of choice, and in extreme cases, death. Our results suggest that some environmental components are constituent to well-being. We emphasise the importance of validating the precise environmental components that are considered relevant to well-being in different contexts. Extending poverty measurement with relevant environmental components can help in targeting action towards reducing poverty in a more legitimate, context-specific way.
尽管一再强调自然环境与人类福利之间的联系以及农村穷人对自然资源不成比例的直接依赖,但在贫穷评估中没有很好地处理这些联系。共同贫困概况既没有反映自然对福祉的贡献,也没有反映人们赋予自然的多重价值和意义。在将环境因素纳入福祉衡量的概念基础上,我们的工作旨在根据被衡量的人群确定哪些因素是合法的。我们制定了焦点小组讨论协议,以引出对卢旺达和马拉维农村环境中环境-福祉关系的看法。该协议包括福祉自由清单练习,将列出的项目与预定义的福祉维度联系起来的匹配练习,以及对环境-福祉联系的讨论。我们发现,在这些不同的农村地区,严重的环境退化、危害以及争夺土地和森林的冲突与福祉有着深刻而直接的联系。洪水或长期干旱等环境变化导致收入、作物和资产的损失,以及长期的心理压力,选择自由受到限制,在极端情况下导致死亡。我们的研究结果表明,一些环境因素是幸福的组成部分。我们强调确认在不同背景下被认为与福祉相关的确切环境成分的重要性。扩大包含相关环境因素的贫困衡量,有助于以更合理、更具体的方式采取有针对性的行动来减少贫困。
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引用次数: 3
Land Use Change and Commodity Frontiers 土地利用变化与商品边界
IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2020-01-01 DOI: 10.1525/cse.2020.1223610
D. Cáceres, Esteban Tapella, Diego Cabrol, Lucrecia Estigarribia
Argentina is experiencing an expansion of soya and maize cultivation that is pushing the agricultural frontier over areas formerly occupied by native Chaco forest. Subsistance farmers use this dry forest to raise goats and cattle and to obtain a broad range of goods and services. Thus, two very different and non-compatible land uses are in dispute. On the one hand subsistance farmers fostering an extensive and diversified forest use, on the other hand, large-scale producers who need to clear out the forest to sow annual crops in order to appropriate soil fertility. First, the paper looks at how these social actors perceive Chaco forest, what their interests are, and what kind of values they attach to it. Second, we analyze the social-environmental conflicts that arise among actors in order to appropriate forest’s benefits. Special attention is paid to the role played by the government in relation to: (a) how does it respond to the demands of the different sectors; and (b) how it deals with the management recommendations produced by scientists carrying out social and ecological research. To put these ideas at test we focus on a case study located in Western Córdoba (Argentina), where industrial agriculture is expanding at a fast pace, and where social actors’ interests are generating a series of disputes and conflicts. Drawing upon field work, the paper shows how power alliances between economic and political powers, use the institutional framework of the State in their own benefit, disregarding wider environmental and social costs.
阿根廷正在经历大豆和玉米种植的扩张,这推动了农业边界超越了原来被查科原生森林占据的地区。自给自足的农民利用这片干燥的森林来饲养山羊和牛,并获得各种各样的商品和服务。因此,两种截然不同、互不相容的土地用途存在争议。一方面是维持生计的农民促进广泛和多样化的森林利用,另一方面是需要清除森林以播种一年生作物以适当提高土壤肥力的大规模生产者。首先,本文着眼于这些社会行动者如何看待查科森林,他们的利益是什么,以及他们赋予它什么样的价值观。其次,分析了行动者之间为争夺森林利益而产生的社会环境冲突。特别关注政府在以下方面所扮演的角色:(a)政府如何回应不同界别的要求;(b)它如何处理进行社会和生态研究的科学家提出的管理建议。为了检验这些想法,我们重点研究了位于Córdoba西部(阿根廷)的一个案例,在那里,工业化农业正在快速扩张,社会行动者的利益正在产生一系列的争端和冲突。根据实地工作,本文展示了经济和政治力量之间的权力联盟如何利用国家的制度框架为自己谋利,而不顾更广泛的环境和社会成本。
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引用次数: 0
Wildlife Crossing Design Influences Effectiveness for Small and Large Mammals in Banff National Park 野生动物通道设计影响班夫国家公园小型和大型哺乳动物的有效性
IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2020-01-01 DOI: 10.1525/CSE.2020.1231752
Lauren R. Stewart, Bryson Russell, Eva Zelig, Gaurang Patel, K. Whitney
Banff National Park (BNP) is Canada’s oldest national park and a very popular one, with both year-round residents and millions of annual visitors. In turn, this means there are several busy road and rail transportation routes throughout the park. These factors can have a number of negative effects on local wildlife. The wildlife crossing structures of the Trans-Canada Highway in BNP have become a key conservation tool to conserve biodiversity in the park and beyond. As the first large-scale operation of highway mitigation of its kind in North America, it is a perfect case for understanding the conservation value of highway overpasses and underpasses for a variety of wildlife species including both large and small mammals. It was determined from the research that there is a vast majority of information available for large mammals compared to small mammals. Small mammals used the crossing structures to avoid predators, while large mammals used the crossing structures to avoid humans. The design of the structure was extremely influential on its effectiveness with black bears and cougars preferring narrow bridges with cover, elk preferring wide, open bridges, and smaller mammals, such as weasels, snowshoe hares, and some mice preferring culverts with vegetation cover.
班夫国家公园(BNP)是加拿大最古老的国家公园,也是一个非常受欢迎的国家公园,全年都有居民和每年数百万的游客。反过来,这意味着有几条繁忙的公路和铁路运输路线贯穿整个公园。这些因素会对当地野生动物产生一系列负面影响。BNP横贯加拿大公路的野生动物穿越结构已成为保护公园内外生物多样性的重要保护工具。作为北美第一个大规模的公路缓解行动,它是了解公路立交桥和地下通道对各种野生动物物种(包括大型和小型哺乳动物)保护价值的完美案例。从研究中可以确定,与小型哺乳动物相比,大型哺乳动物的大部分信息都是可用的。小型哺乳动物用交叉结构来躲避捕食者,而大型哺乳动物用交叉结构来躲避人类。结构的设计对其有效性有极大的影响,黑熊和美洲狮喜欢狭窄的有遮蔽的桥梁,麋鹿喜欢宽阔的开放式桥梁,而较小的哺乳动物,如黄鼠狼、雪鞋兔和一些老鼠喜欢有植被覆盖的涵洞。
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引用次数: 4
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