Introduction of summer houses into semi-natural habitats: impacts on ground-nesting birds

IF 2.8 2区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Animal Conservation Pub Date : 2024-03-17 DOI:10.1111/acv.12938
Aldís E. Pálsdóttir, José A. Alves, Jennifer A. Gill, Snæbjörn Pálsson, Verónica Méndez, Tómas G. Gunnarsson
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Abstract

Degradation of natural and semi-natural habitats is often initiated and facilitated by expansions in anthropogenic infrastructures. Identifying and reducing the impact of anthropogenic structures on the wildlife that these habitats support is vital for biodiversity conservation. In Iceland, the number of summer houses has increased over the past two decades, from ~10 000 to 15 000, and >7000 additional plots for summer house construction have been approved. Most of this housing infrastructure development is in the Icelandic lowlands, which support internationally important populations of several ground-nesting bird species. To explore the effects of summer house infrastructure on the distribution of ground-nesting birds, we conducted surveys at 292 points within 71 sites with varying density of houses and associated infrastructure (tracks, decking, etc). Significant reductions in abundance with increasing housing density occurred in five (Golden Plover (Pluvialis apricaria), Black-tailed Godwit (Limosa limosa), Redshank (Tringa totanus), Whimbrel (Numenius phaeopus) and Meadow pipit (Anthus pratensis)) of the seven study species, while one species (Snipe (Gallinago gallinago)) showed no change and one (Redwing (Turdus iliacus)) increased. The differences in abundance between plots with no houses and plots with high house densities (>0.5 houses ha−1) ranged from 34 to 95%, despite the housing infrastructure covering only ~6% of the area of these plots. These findings suggest that even relatively low densities of anthropogenic structures in natural or semi-natural areas can have substantial impacts on wildlife in the surrounding areas and highlight the urgent need for effective planning regulations to limit the expansion of anthropogenic structures into currently undisturbed habitats, particularly in areas of high biodiversity value.

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将避暑山庄引入半自然栖息地:对地巢鸟类的影响
自然和半自然栖息地的退化往往是由人为基础设施的扩张引发和助长的。确定并减少人为建筑对这些栖息地所支持的野生动物的影响,对保护生物多样性至关重要。在冰岛,避暑别墅的数量在过去二十年间从约 10,000 座增加到了 15,000 座,另外还批准了 7,000 块避暑别墅建设用地。这些住房基础设施建设大多位于冰岛低地,而这些低地孕育着多个具有国际重要性的地巢鸟类种群。为了探索夏屋基础设施对地栖鸟类分布的影响,我们在 71 个地块内的 292 个点进行了调查,这些地块的房屋和相关基础设施(轨道、平台等)的密度各不相同。随着房屋密度的增加,7 个研究物种中有 5 个物种(金鸻(Pluvialis apricaria)、黑尾鲣鸟(Limosa limosa)、红鹳(Tringa totanus)、黄雀(Numenius phaeopus)和草地鸻(Anthus pratensis))的丰度显著下降,而 1 个物种(杓鹬(Gallinago gallinago))没有变化,1 个物种(红鹡鸰(Turdus iliacus))有所增加。没有房屋的地块与房屋密度较高(0.5栋/公顷)的地块之间的丰度差异从34%到95%不等,尽管房屋基础设施只覆盖了这些地块约6%的面积。这些研究结果表明,在自然或半自然地区,即使人为建筑密度相对较低,也会对周围地区的野生动物产生重大影响,因此迫切需要制定有效的规划法规,限制人为建筑向目前未受干扰的栖息地扩展,尤其是在生物多样性价值较高的地区。
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来源期刊
Animal Conservation
Animal Conservation 环境科学-生态学
CiteScore
7.50
自引率
5.90%
发文量
71
审稿时长
12-24 weeks
期刊介绍: Animal Conservation provides a forum for rapid publication of novel, peer-reviewed research into the conservation of animal species and their habitats. The focus is on rigorous quantitative studies of an empirical or theoretical nature, which may relate to populations, species or communities and their conservation. We encourage the submission of single-species papers that have clear broader implications for conservation of other species or systems. A central theme is to publish important new ideas of broad interest and with findings that advance the scientific basis of conservation. Subjects covered include population biology, epidemiology, evolutionary ecology, population genetics, biodiversity, biogeography, palaeobiology and conservation economics.
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Issue Information Learning From the Past, Adapting to the Future: Experimental Approaches in Conservation Translocations Understanding Post-Release Dispersal and Habitat Selection Helps Refine Management of Translocated Populations Successful Translocation of a Long-Distance Migrating Passerine—New Impetus for the Conservation of the Globally Threatened Aquatic Warbler Issue Information
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