Sample study on Avian diversity of Chupi Oxbow Lake, Purbasthali, Purba Bardhaman, West Bengal

The Nature Mates Nature Club has released a dataset entitled "Sample study on Avian diversity of Chupi Oxbow Lake, Purbasthali, Purba Bardhaman, West Bengal" The Purbasthali, also known as Chupir Char or beel locally, covers 2.19 km of water and stretches from 23°25′54′′ to 23°27′54′′N and 88°19′45′′ to 88°21′54′′E. (Mandal et al. 2018). In West Bengal’s lower Gangetic delta, the wetland is situated between the districts of Nadia and Purba Barddhaman (Mandal & Siddique, 2018). Due to its link with the river at its southern end across a narrow strait, this water body has a distinctive combination of lacustrine (lentic) and riverine (lotic) habitats (Ganesan & Khan 2007). The lake’s crescent-shaped shape was created between 1989 and 1991 as a result of the lateral displacement of the river stream and concurrent erosion and deposition processes (Mandal & Siddique, 2018). According to the Ramsar classification, the wetland of Purbasthali (Chupir Char), which is physiographically an oxbow lake, is designated as a marsh (jheel) of Gangetic Alluvial Plains (Mandal & Siddique 2018). The habitat of an oxbow lake is typically Adjacent to a river and favorable for the establishment of numerous species of fauna and plants (Ward et al. 1999; Stella et al. 2011). This lake is connected to the River Bhagirathi by a little waterway. As usual, this oxbow lake offers a good habitat for various water bird species. The lake is currently threatened by habitat loss due to the overgrowing of Water Hyacinth. Large numbers of birds in and around Chupi Lake were studied. This dataset includes all the water birds recorded on the 21st of January 2024. All the birds are identified up to the species level. 32 species of birds belonging to 10 orders and 15 families were recorded from this oxbow lake.

自然伙伴自然俱乐部（Nature Mates Nature Club）发布了一则题为《西孟加拉邦普尔巴巴德哈姆县布尔巴斯塔利丘皮牛轭湖（oxbow lake）鸟类多样性样本研究》的数据集。该水域即布尔巴斯塔利，当地亦称为丘皮尔查尔（Chupir Char）或比尔（beel，孟加拉语意为湖沼），水体延展2.19千米，地理坐标介于北纬23°25′54′′至23°27′54′′、东经88°19′45′′至88°21′54′′之间（曼达尔等，2018）。该湿地位于西孟加拉邦下恒河三角洲，地处纳迪亚县与普尔巴巴德哈姆县交界地带（曼达尔与西迪基，2018）。因其南端通过狭窄水道与河流相连，该水体兼具湖相（静水环境，lentic）与河相（动水环境，lotic）两类独特生境（加内桑与汗，2007）。该湖的新月形形态形成于1989至1991年间，由河道侧向迁移伴随侵蚀与沉积作用共同塑造而成（曼达尔与西迪基，2018）。根据拉姆萨尔公约（Ramsar Convention）的分类标准，地貌上属于牛轭湖的布尔巴斯塔利（丘皮尔查尔）湿地被划归为恒河冲积平原沼泽（杰赫尔，jheel）（曼达尔与西迪基，2018）。牛轭湖生境通常毗邻河流，适宜众多动植物物种栖息（沃德等，1999；斯特拉等，2011）。该湖通过一条小型水道与巴吉拉蒂河相连。如常规情况，这座牛轭湖为各类水鸟提供了优质栖息生境。目前，该湖正遭受水生风信子（水葫芦）过度滋生引发的生境丧失威胁。研究团队对丘皮湖及其周边区域的大量鸟类开展了调查。本数据集收录了2024年1月21日记录到的全部水鸟，所有鸟类均鉴定至物种水平。本次调查共记录到隶属于10目15科的32种鸟类。