Inventory of Water Bird Species Which Accumulate Mercury from Mining Waste in Coastal Area North Gorontalo Regency, Indonesia

This study was carried out to assess the status and conservation issues of migratory water birds in Komaranahalli Kere, a lake in Malebennur, Harihar Taluk, Davanagere District from November 2012 to October 2013. The dominant family was Ardeidae represented by 10 species, followed by the Scolopacidae with seven species. The families with lowest representations of one species were Podicipididae, Anhingidae, Rostratulidae and Recurvirostridae. The study revealed that the lake harbors many resident and a few migratory bird species. Among the species recorded five species namely the Black-headed Ibis Threskiornis melanocephalus, Oriental Darter Anhinga melanogaster, Black-tailed Godwit Limosa limosa, Painted Stork Mycteria leucocephala and River Tern Sterna aurantia are Near Threatened. The present study location is also facing tremendous conservation challenges by the impact of anthropogenic alteration of the habitats in and around the lake. Though the lake is highly disturbed, it still provides some potential habitats for a few migratory and several resident water bird species.

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An Assessment of Water bird species and associated water bird composition in the Haiderpur Wetland of Hastinapur Wildlife sanctuary Uttar Pradesh, India

Asian Journal of Conservation Biology ◽

10.53562/ajcb.dckb1009 ◽

2021 ◽

Vol 10 (1) ◽

pp. 141-145

Author(s):

Kamal Joshi ◽

◽

Deepak Kumar ◽

Ashish Kumar Arya, ◽

Archana Bachheti ◽

...

Keyword(s):

Bird Species ◽

Uttar Pradesh ◽

Migratory Bird ◽

Wildlife Sanctuary ◽

Wetland Area ◽

Water Bird ◽

Waterbird Species ◽

The World ◽

Bird Composition ◽

Common Pochard

Bird species are natural indicators of healthy ecosystem. Indian sub-continent contributes about 13% of the world avian species. A study was carried out between year 2017 and 2019, at Haiderpur wetland (Hastinapur wildlife sanctuary) along the Ganga River in Utter Pradesh. Total 66 water bird species belonging to 15 families were encountered. Among the water bird species 04 Vulnerable (Common Pochard, Black headed ibis, Sarus crane, Indian skimmer), 06 near threaten (River Lapwing, Northern lapwing, River tern, Painted stork, Woolly-necked Stork, Black-tailed Godwit) and 01 Endangered (Black-bellied Tern) waterbird species (as per IUCN records) were reported in the Haiderpur wetland area. The contribution of water migratory bird is about 29% in the study area. This area is contributing as birding site thus more focus on conservation of this site.

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Disentangling causes of the dieback of littoral stands in an overloaded water-bird reserve: roles of eutrophication, fish and geese

10.21203/rs.3.rs-380196/v1 ◽

2021 ◽

Author(s):

Richard Svidenský ◽

Andrea Kučerová ◽

Hana Čížková

Keyword(s):

Sediment Quality ◽

Bird Species ◽

Ecological Factors ◽

Shoot Density ◽

Field Investigation ◽

Mineral Nutrient ◽

Fish Stocks ◽

Water Bird ◽

Physico Chemical ◽

Negative Effect

Abstract European fishponds used for semi-intensive fish production can serve for refuges of water birds if the fish stocks are limited but the effects of other ecological factors on the ecosystem stability are seldom considered. The aim of this study is to elucidate causes of a marked decline of littoral stands dominated with Typha angustifolia in a hypertrophic fishpond forming a part of a valuable water-bird reserve. Field investigation and two experiments were conducted in order to separate the effects of mineral nutrient availability, redox condition, fish and geese. The physico-chemical characteristics of water and sediments confirmed hypertrophic conditions in the fishpond but a follow-up mesocosm experiment did not prove a negative effect of the sediment quality on the plant growth. On the other hand, a field enclosure experiment showed a significant negative effect on shoot density, which was attributed to grazing by geese. An additional damage to plant belowground parts was ascribed to large carp individuals, albeit in small numbers. The study points to a conservation dilemma caused by large numbers of geese destroying littoral stands in a fishpond nature reserve, which then looses its nesting function for other water-bird species.

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