Urban oasis? Abundant dice snake (Natrix tessellata) populations along artificial lakeside habitats in urban landscapes

IF 4 2区 环境科学与生态学 Q1 ECOLOGY Landscape Ecology Pub Date : 2024-06-26 DOI:10.1007/s10980-024-01917-w
Boglárka Mészáros, József Bürgés, Mónika Tamás, Blanka Gál, Dénes Schmera, Andrew J. Hamer
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Abstract

Context

Human-induced landscape modification, such as urbanization, creates new environments that can have adverse effects on flora and fauna, posing threats to biodiversity. Understanding how reptiles respond to urbanization is crucial, especially in light of their ongoing population declines.

Objectives

We examined the influence of landscape-scale and local-scale urbanization features on the abundance of an aquatic snake species. Our investigation focused on dice snakes (Natrix tessellata) inhabiting a lake with a heavily urbanized shoreline.

Methods

We conducted visual encounter surveys at 25 study sites during the activity period of dice snakes around Lake Balaton in Hungary. We measured both landscape-scale and local-scale variables, including urban land use cover, vegetation cover, road cover, distance of main roads and city size, emergent vegetation cover and the area of artificial rock and concrete shoreline protection structures. We analysed snake survey data using N-mixture models to estimate abundance and examine relationships with landscape-scale and local-scale variables.

Results

Urban land use cover, road cover, the proximity of main roads and the extent of artificial rock and concrete shoreline protection structures positively affected the abundance of snakes. These findings imply that urban habitats may offer new ecological opportunities for dice snakes.

Conclusions

The findings of this study indicate that both landscape-scale and local-scale human-induced landscape modifications may have a positive impact on the abundance of urban snakes. Taken together, our findings suggest that urbanization is a complex phenomenon, affecting species at different levels and with subtle effects.

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城市绿洲?城市景观中人工湖畔栖息地沿岸丰富的骰子蛇(Natrix tessellata)种群
背景人类引起的景观改变,如城市化,创造了新的环境,可能对动植物产生不利影响,对生物多样性构成威胁。我们研究了景观尺度和局部尺度的城市化特征对水生蛇类物种数量的影响。方法我们在匈牙利巴拉顿湖附近的骰子蛇活动期间对 25 个研究地点进行了目测调查。我们测量了景观尺度和地方尺度的变量,包括城市土地利用覆盖率、植被覆盖率、道路覆盖率、主要道路距离和城市规模、新兴植被覆盖率以及人工岩石和混凝土海岸线保护结构的面积。结果城市土地利用覆盖率、道路覆盖率、主干道距离以及人工岩石和混凝土海岸线保护结构的范围对蛇的数量有积极影响。结论本研究的结果表明,景观尺度和局部尺度的人为景观改造可能会对城市蛇类的数量产生积极影响。综合来看,我们的研究结果表明,城市化是一个复杂的现象,会在不同层面对物种产生微妙的影响。
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来源期刊
Landscape Ecology
Landscape Ecology 环境科学-地球科学综合
CiteScore
8.30
自引率
7.70%
发文量
164
审稿时长
8-16 weeks
期刊介绍: Landscape Ecology is the flagship journal of a well-established and rapidly developing interdisciplinary science that focuses explicitly on the ecological understanding of spatial heterogeneity. Landscape Ecology draws together expertise from both biophysical and socioeconomic sciences to explore basic and applied research questions concerning the ecology, conservation, management, design/planning, and sustainability of landscapes as coupled human-environment systems. Landscape ecology studies are characterized by spatially explicit methods in which spatial attributes and arrangements of landscape elements are directly analyzed and related to ecological processes.
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