栖息地边缘对以桉树种植园为主的景观中中型食蚁兽的空间和时空出现模式的影响

IF 3.7 2区 农林科学 Q1 FORESTRY
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引用次数: 0

摘要

人类人口的增长导致地貌结构的急剧变化,而这种变化往往会造成地貌破碎化。破碎化改变了景观,将其分割成更小的生境斑块,形成生境边缘。这些边缘会影响物种的分布和数量,并影响种间相互作用。通过比较栖息地边缘与栖息地内部,我们打算研究栖息地边缘如何或是否会影响中型食肉动物的:i)活动模式;ii)在时间上的共同出现;iii)占有率。我们在两个桉树种植园中使用照相机诱捕器监测中型食蚁兽群落,这两个种植园中夹杂着成片的自然栖息地,形成了一个栖息地边缘丰富的景观。每个研究地点放置了 18 个相机陷阱,其中一半位于栖息地边缘,另一半位于栖息地内部。我们发现,与栖息地边缘相比,中食肉动物在栖息地内部的活动模式重叠度更高,而且在物种和群落层面上,栖息地边缘密度对占有率的影响一致为正。这项研究表明,栖息地边缘会影响中食肉动物的空间和时间行为。虽然从空间上看,所有物种都受到边缘的积极影响,因为边缘可以提供替代资源或更高的资源可用性,或充当旅行走廊,从而最大限度地减少边缘地带的种间相互作用,但与边缘生境相比,内部生境中的物种活动重叠更大。我们的研究结果支持在人类改变的生态系统(如农业区和林场)中设计更好的管理措施,以保证在保护生物多样性的同时维持经济收益。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of habitat edges on spatial and spatio-temporal occurrence patterns of mesocarnivores in landscapes dominated by Eucalyptus plantations

Human population growth leads to drastic changes in landscape structure that often result in fragmentation. Fragmentation modifies the landscape and divides it into smaller habitat patches, creating habitat edges. These can affect the distribution and abundance of species and influence interspecific interactions. By comparing edges with habitat interiors, we intend to study how or if habitat edges influence mesocarnivores’: i) activity patterns, ii) co-occurrence in time, and iii) occupancy. We used camera-trapping to monitor the mesocarnivore community in two Eucalyptus plantations interspersed with patches of natural habitats, producing a landscape rich in habitat edges. 18 camera traps were placed in each study site, half on habitat edges and half in the interior habitat. We found a higher overlap of the mesocarnivores activity patterns in interior habitat than in habitat edges and a consistent positive effect for edge density on occupancy at both species and community-level. This study demonstrates that habitat edges shape mesocarnivores’ spatial and temporal behaviour. While spatially all species are positively affected by edges, as these can provide alternative or higher availability of resources, or act as travel corridors, to minimize interspecific interactions in edges, species activity overlap is greater within interior habitats than in edge habitats. Our findings support the design of better management measures in human-altered ecosystems, such as agricultural areas and forestry plantations, to guarantee the conservation of biodiversity while maintaining economic profitability.

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来源期刊
Forest Ecology and Management
Forest Ecology and Management 农林科学-林学
CiteScore
7.50
自引率
10.80%
发文量
665
审稿时长
39 days
期刊介绍: Forest Ecology and Management publishes scientific articles linking forest ecology with forest management, focusing on the application of biological, ecological and social knowledge to the management and conservation of plantations and natural forests. The scope of the journal includes all forest ecosystems of the world. A peer-review process ensures the quality and international interest of the manuscripts accepted for publication. The journal encourages communication between scientists in disparate fields who share a common interest in ecology and forest management, bridging the gap between research workers and forest managers. We encourage submission of papers that will have the strongest interest and value to the Journal''s international readership. Some key features of papers with strong interest include: 1. Clear connections between the ecology and management of forests; 2. Novel ideas or approaches to important challenges in forest ecology and management; 3. Studies that address a population of interest beyond the scale of single research sites, Three key points in the design of forest experiments, Forest Ecology and Management 255 (2008) 2022-2023); 4. Review Articles on timely, important topics. Authors are welcome to contact one of the editors to discuss the suitability of a potential review manuscript. The Journal encourages proposals for special issues examining important areas of forest ecology and management. Potential guest editors should contact any of the Editors to begin discussions about topics, potential papers, and other details.
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