量化农业景观中土地覆盖变化对濒危农田绿树蛙(Zhangixalus arvalis)的影响:对保护工作的启示。

IF 0.5 Q4 PEDIATRICS
Egyptian Pediatric Association Gazette Pub Date : 2021-12-07 eCollection Date: 2021-01-01 DOI:10.6620/ZS.2021.60-71
Sin Chen, Meng-Hsien Chuang, Hau-Jie Shiu, Jian-Nan Liu
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引用次数: 0

摘要

栖息地的丧失和破碎化对两栖动物,尤其是对栖息地有特殊要求的两栖动物有很大的负面影响。濒临灭绝的农地绿树蛙(Zhangixalus arvalis)主要栖息在台湾中部农业景观的林地中。最近,由于对菠萝产品的需求增加,许多林地,特别是竹子种植园,被改造成菠萝田。本研究旨在量化农业景观中土地覆盖变化导致的栖息地丧失和破碎化对菠萝鼠的影响。研究区域包含 34 243 个 50 m × 50 m 的网格。在 2006 年和 2014-2015 年,我们采用声学调查方法调查了每个网格中箭鱼的出现情况。我们获得了研究区 2006 年和 2014 年的卫星图像,并将每个网格的土地覆盖类型归为以下六种类型之一:林地、灌木丛、耕地、裸地、人工建筑和水体。我们通过比较可利用的植被类型比例和蛙类使用的植被类型比例,来考察箭毒蛙是否偏好某种土地植被类型。此外,我们使用了2006年和2014-2015年的出现记录,并应用最大熵模型预测了相应年份的适宜栖息地。我们绘制了这 8 年间适宜栖息地的损失图,并使用 6 个指数量化了栖息地的破碎化程度。我们还测试了不同大小的栖息地斑块中张尾蛙的占据率与斑块大小的函数关系这一预测。章鱼表现出对林地的强烈偏好,但回避耕地和人工建筑。从2006年到2014-2015年,适宜栖息地减少了4.1%,六项指数均显示栖息地破碎化程度加剧。不同大小林地斑块的占用率与斑块大小呈正相关。绘制适宜栖息地图并确定功能性栖息地连接的潜在差距,可用于指导保护箭毒蛙的有效措施。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quantifying the Effect of Land-cover Change on the Endangered Farmland Green Treefrog (Zhangixalus arvalis) in an Agricultural Landscape: Implications for Conservation.

Habitat loss and fragmentation have a significant negative effect on amphibian species, particularly those with specialized habitat requirements. The endangered farmland green treefrog (Zhangixalus arvalis) primarily inhabits woodlands of agricultural landscapes in central Taiwan. Recently, due to increased demands for pineapple products, many woodlands, particularly bamboo plantations, were converted to pineapple fields. This study aimed to quantify the effect of habitat loss and fragmentation on Z. arvalis due to changes in land cover in an agricultural landscape. The study area contained 34,243 50 m × 50 m grids. In 2006 and 2014-2015, we used acoustic surveys to survey the occurrence of Z. arvalis in each grid. We obtained satellite images of the study area for 2006 and 2014, and we assigned the land-cover type of each grid to one of the following six types: woodland, brushland, cropland, bareland, manmade structures and water body. We examined whether Z. arvalis preferred a certain land-cover type by comparing the proportion of cover types available and the proportion of cover types used by the frogs. Furthermore, we used occurrence records for 2006 and 2014-2015 and applied the Maximum Entropy Model to predict suitable habitat for the respective years. We mapped the loss of suitable habitat and used six indices to quantify habitat fragmentation within the 8 years. We also tested the prediction that the occupancy rate of Z. arvalis in different-sized habitat patches was a function of patch size. Zhangixalus arvalis exhibited a strong preference for woodland, but avoided cropland and manmade structures. From 2006 to 2014-2015, the suitable habitat decreased 4.1%, and all six indices showed an increase in habitat fragmentation. The occupancy rate of different-sized woodland patches was positively correlated with patch size. Mapping suitable habitat and identifying the potential gaps in functional habitat connectivity can be used to guide effective measures for conserving Z. arvalis.

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来源期刊
自引率
0.00%
发文量
32
审稿时长
9 weeks
期刊介绍: The Gazette is the official journal of the Egyptian Pediatric Association. The main purpose of the Gazette is to provide a place for the publication of high-quality papers documenting recent advances and new developments in both pediatrics and pediatric surgery in clinical and experimental settings. An equally important purpose of the Gazette is to publish local and regional issues related to children and child care. The Gazette welcomes original papers, review articles, case reports and short communications as well as short technical reports. Papers submitted to the Gazette are peer-reviewed by a large review board. The Gazette also offers CME quizzes, credits for which can be claimed from either the EPA website or the EPA headquarters. Fields of interest: all aspects of pediatrics, pediatric surgery, child health and child care. The Gazette complies with the Uniform Requirements for Manuscripts submitted to biomedical journals as recommended by the International Committee of Medical Journal Editors (ICMJE).
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