The status of waterbird populations of Chhaya Rann Wetland Complex in Porbandar, Gujarat, India

The present investigation was undertaken to study the diversity of wetland birds in Chhaya Rann (Gujarati: Deserted land) wetland complex, situated in the urban setting of Porbandar City, in the western state of Gujarat, India. Almost 70 species belonging to 21 families of wetland birds have been reported from here with an estimated count of 35,747 and 20,981 in the year 2016 and 2015 respectively. Anatidae and Scolopacidae represent the higher number of species (11 each) followed by Ardeidae (eight species) and Laridae (seven species). The wetland complex supports one IUCN Red Listed Vulnerable species (Common Pochard Aythya ferina), six Near Threatened species (Lesser Flamingo Phoeniconaias minor, Oriental Darter Anhinga melanogaster, Dalmatian Pelican Pelecanus crispus, Black-headed Ibis Threskiornis melanocephalus, Black-tailed Godwit Limosa limosa and River Tern Sterna aurantia), and 63 Least Concern species. The wetland meets the Criteria 5 and 6 for listing as a wetland of international importance under the Ramsar Convention.

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Status and conservation issues of wetland birds in Komaranahalli Lake, Davanagere District, Karnataka, India

Journal of Threatened Taxa ◽

10.11609/jott.2809.10.2.11290-11294 ◽

2018 ◽

Vol 10 (2) ◽

pp. 11290 ◽

Cited By ~ 1

Author(s):

M. N. Harisha ◽

B. B. Hosetti

Keyword(s):

Bird Species ◽

Migratory Bird ◽

Wetland Birds ◽

Water Bird ◽

Limosa Limosa ◽

The Status ◽

Potential Habitats ◽

Water Birds ◽

The Impact ◽

Near Threatened

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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Status and conservation issues of wetland birds in Komaranahalli Lake, Davanagere District, Karnataka, India

Journal of Threatened Taxa ◽

10.11609/jott.2809.10.2.11295-11302 ◽

2018 ◽

Vol 10 (2) ◽

pp. 11295

Author(s):

M. N. Harisha ◽

B. B. Hosetti

Keyword(s):

Bird Species ◽

Migratory Bird ◽

Wetland Birds ◽

Water Bird ◽

Limosa Limosa ◽

The Status ◽

Potential Habitats ◽

Water Birds ◽

The Impact ◽

Near Threatened

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A review of the adequacy of reporting to the Ramsar Convention on change in the ecological character of wetlands

Marine and Freshwater Research ◽

10.1071/mf18328 ◽

2020 ◽

Vol 71 (1) ◽

pp. 117 ◽

Cited By ~ 1

Author(s):

N. C. Davidson ◽

L. Dinesen ◽

S. Fennessy ◽

C. M. Finlayson ◽

P. Grillas ◽

...

Keyword(s):

Sufficient Information ◽

Information Sheet ◽

National Scale ◽

Ramsar Convention ◽

Sustainable Development Goal ◽

The Sustainable Development ◽

Ecological Character ◽

The Status ◽

International Importance ◽

Over Time

We review the mechanisms established by the Ramsar Convention for reporting on the status and change in the ecological character of wetlands. We assess the extent of their implementation and compliance, but not issues of the adequacy of their design nor the consequences of their extent of implementation. We conclude that, with the exception of qualitative national-scale reporting in triennial Contracting Party National Reports, there is inadequate implementation and compliance with most of these mechanisms, notably concerning required reporting under Article 3.2 of the Convention and the updating of the Information Sheet on Ramsar Wetlands (RIS). This limits the ability of the Convention to assess the status, and trends in status, of designated Wetlands of International Importance (Ramsar Sites), and to inform future decision-making and priority-setting for the wise use of all wetlands. As has been recognised by the Ramsar Convention, unless compliance with these mechanisms is improved, sufficient information will not be gathered through the mechanisms of Ramsar Convention to assess fully the Sustainable Development Goal 6.6.1 indicator supported by the Convention on change in the extent of water-related ecosystems over time.

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The status and conservation of threatened and near-threatened species of birds in the Red River Delta, Vietnam

Bird Conservation International ◽

10.1017/s0959270900003610 ◽

1998 ◽

Vol 8 (1) ◽

pp. 31-51 ◽

Cited By ~ 2

Author(s):

Anita Pedersen ◽

Sanne Schnell Nielsen ◽

Le Dien Thuy ◽

Le Trong Trai

Keyword(s):

Threatened Species ◽

Nature Reserve ◽

River Delta ◽

Red River ◽

Red River Delta ◽

The Status ◽

Conservation Actions ◽

International Importance ◽

Threat Categories ◽

Near Threatened

SummaryThe Red River Delta in northern Vietnam is an important stopover and wintering site for migratory waterbirds. During the spring of 1994, six globally threatened and five near-threatened species were observed in the coastal areas of the Delta. According to current applications of threat categories, one of the species has Critical status (Black-faced Spoonbill Platalea minor), three are Endangered (Nordmann's Greenshank Tringa guttifer, Saunders's Gull Larus saundersi and Chinese Egret Egretta eulophotes), two are Vulnerable (Spoonbill Sandpiper Eurynorhynchus pygmaeus and Spot-billed Pelican Pelecanus philippensis) and five are Near-threatened (Asian Dowitcher Limnodromus semipalmatus, Grey-headed Lapwing Vanellus cinereus, Black-headed Ibis Threskiornis melanocephalus, Painted Stork Mycteria leucocephala and Japanese Paradise-Flycatcher Terpsiphone atrocaudata). A nature reserve, also listed as a Ramsar area, already exists in the middle of the Delta. The Cua Day Estuary in the southern part of the delta is not included in either the nature reserve or Ramsar area. However, observations of 260 Saunders's Gulls and 41 Black-faced Spoonbills, which represent 9% and 12% of the estimated respective world populations, indicates the international importance of this area. The major threats to the waterbirds using the delta are reclamation of intertidal sand- and mudflats for aquaculture, increased disturbance associated with collection of sea products and hunting. Recommendations are made for future conservation actions.

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An assessment of bird communities across Ujjani and its five satellite wetlands in Solapur District of Maharashtra, India

Journal of Threatened Taxa ◽

10.11609/jott.4741.11.15.14989-14997 ◽

2019 ◽

Vol 11 (15) ◽

pp. 14989-14997

Author(s):

Shraddha Prabhakar Karikar ◽

Subhash Vitthal Mali ◽

Kulkarni Prasad ◽

Aphale Priti

Keyword(s):

Anthropogenic Activities ◽

Bird Species ◽

Iucn Red List ◽

Bird Communities ◽

Conservation Priorities ◽

Wetland Birds ◽

Wet Meadow ◽

Point Count ◽

Limosa Limosa ◽

Near Threatened

Ujjani wetland is a potential Ramsar site in Maharashtra, India with several satellite wetlands associated with it. The present study contributes to single large or several small habitat conservation theories by assessing wetland bird communities. Aquatic bird communities were assessed using area search and point count methods at Kumbhargaon (Ujjani), Bhadalwadi, Madanwadi, Palasdev, Pimple and Ravangaon wetlands between October 2011 and September2012. These are representative satellite wetlands around Ujjani. One-hundred-and-ten species of wetland birds across 12 orders and 29 families were recorded. Out of these, 66 were resident and 44 were found to be migrants. These birds represent 23% mudflat feeder, 16% upland feeder, 14% marsh feeder, 12% bird of prey, 11% surface feeder and fish eaters, while divers and wet meadow feeders were represented with 8.5% and 5% of the species, respectively. Among the birds recorded, Woolly-necked Stork Ciconia episcopus, Common Pochard Aythya farina, and Greater Spotted Eagle Clanga clanga belong to the Vulnerable category; while Eurasian Curlew Numenius arquata, Oriental Darter Anhinga melanogaster, Black-tailed Godwit Limosa limosa, Black-headed Ibis Threskiornis melanocephalus, Lesser Flamingo Phoeniconaias minor, Painted Stork Mycteria leucocephala, River Tern Sterna aurantia, and Great Thick-knee Esacus recurvirostris represent Near Threatened category on the IUCN Red List. The presence of these bird species underlines the importance and conservation priorities of a major as well as smaller satellite wetlands. Anthropogenic activities such as cattle grazing, fishing, sand and soil mining, land encroachment, urban development and tourism were observed as some of the threats to this wetland ecosystem as well as bird communities.

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Hydrochemical assessment of water quality for irrigation: A case study of the wetland complex of Guerbes-Sanhadja, North-East of Algeria

Journal of Water and Land Development ◽

10.2478/jwld-2018-0041 ◽

2018 ◽

Vol 38 (1) ◽

pp. 43-52 ◽

Cited By ~ 1

Author(s):

Sihem Hedjal ◽

Derradji Zouini ◽

Abdelwaheb Benamara

Keyword(s):

Water Quality ◽

Quality Parameters ◽

Irrigated Agriculture ◽

Sodium Absorption ◽

Sodium Absorption Ratio ◽

North East ◽

The Status ◽

Wetland Complex ◽

Eastern Algeria ◽

Irrigation Quality

AbstractThe wetland complex of Guerbes-Sanhadja (north-eastern Algeria), has experienced in recent years a certain economic expansion, particularly agricultural, about 47% of the useful agricultural area marked by several varieties of crops ranging from market gardening to speculative crops, requiring large quantities of water for irrigation purposes, however the swampy areas are the main sources used for irrigation purposes in this practice. It is therefore necessary for this water to have physicochemical properties adapted to plants, in particular the absence of salinity. This study was done to evaluate the status of the swamps areas quality and its suitability for irrigated agriculture. To achieve this objective, water samples from ten swamps areas water were collected from Guerbes-Sanhadja in February and June of 2016. The water quality of these swamps was estimated from different water quality parameters such as pH and electrical conductivity (EC), the chemical parameters like Na+, K+, Ca2+, HCO3−, SO42−, Cl−, BOD5, NO3−, NO2−, NH4+ and PO43−. Based on the physico-chemical analyses, irrigation quality parameters like sodium absorption ratio (SAR), percent sodium (% Na), residual sodium carbonate (RSC), permeability index (PI), magnesium hazard (MH) were calculated. The results showed that the overall concentration of nitrate was very high. About 60 percent of the swampy areas had suitable water quality for chloride, and they had a concentration below the permissible limit for crop irrigation. From the Richards diagram, it is observed that most of the samples from the study area fall in the good to permissible classes for irrigation purpose.

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Multispecies and Watershed Approaches to Freshwater Fish Conservation

Multispecies and Watershed Approaches to Freshwater Fish Conservation ◽

10.47886/9781934874578.ch15 ◽

2019 ◽

Keyword(s):

Ecological Monitoring ◽

Army Corps ◽

Ramsar Convention ◽

Vegetation Monitoring ◽

Flow Restoration ◽

Wetland Complex ◽

Conservation Organizations ◽

Caddo Lake ◽

Giant Salvinia ◽

Natural Ecology

<em>Abstract</em>.—Caddo Lake, along with its swamps and tributary bayous, supports a diversity of aquatic ecosystems and has been designated a wetland of global significance by the Ramsar Convention. The life blood of Caddo Lake is the network of tributary creeks and bayous that drain into the wetland complex of the lake’s upper reaches. The ecology of the main tributary, Big Cypress Bayou, however, has been altered by flow regulation by Lake O’ the Pines dam. Additional threats from giant salvinia <em>Salvinia molesta </em>and other invasive plants, water quality impacts, and land uses have added stress to the ecosystem. Several conservation organizations, led by the Caddo Lake Institute, have formed partnerships to address these threats to the watershed. The Sustainable Rivers Program, a partnership of The Nature Conservancy and the U.S. Army Corps of Engineers (Corps), has managed dam operations to enhance the natural ecology of Big Cypress Bayou and Caddo Lake downstream. The Corps has been releasing recommended flows to allow researchers to gather more information to evaluate the success of restoration efforts. Early monitoring results indicate a potential positive response of the fish community to these flow releases. We present results of flow restoration work and associated ecological monitoring. We also summarize floodplain vegetation monitoring, paddlefish restoration and invasive species management projects in Caddo Lake and the Cypress River basin.

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An Overview of the Determination of Biodiversity of Wetlands

10.4018/978-1-7998-9498-8.ch009 ◽

2022 ◽

pp. 150-170

Author(s):

Moumit Roy Goswami ◽

Aniruddha Mukhopadhyay

Keyword(s):

Aquatic Plants ◽

Biological Diversity ◽

Ecological Health ◽

Ramsar Convention ◽

Wetland Ecosystems ◽

Wetland Biodiversity ◽

International Importance ◽

Water Birds

Wetland ecosystems support rich and unique biodiversity. Biodiversity of a given ecosystem in general and wetlands in particular provide important insights to the ecological health of an area. The Ramsar Convention 1971 identified nine criteria for identifying wetlands of international importance. Out of the nine criteria, eight are linked to biodiversity of which three are based on sites of international importance for conserving biological diversity, two are specific for water birds, two are specific for fish, and one criterion for other taxa. Hence, determination of biodiversity of wetlands is of utmost importance. In order to understand that birds, fishes, amphibians, odonates, mammals, and aquatic plants were particularly selected as indicators of wetland biodiversity, the chapter discusses the different methodologies about determination of each of these taxa under different criteria as mentioned above. These methodologies will help various stakeholders in appropriate determination of biodiversity of wetlands of a particular area.

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Population trends and priority conservation sites for Mexican Duck Anas diazi

Bird Conservation International ◽

10.1017/s0959270902002034 ◽

2001 ◽

Vol 12 (1) ◽

pp. 35-52 ◽

Cited By ~ 12

Author(s):

A. Perez-Arteaga ◽

K. J. Gaston ◽

M. Kershaw

Keyword(s):

Ramsar Convention ◽

Management Actions ◽

Large Fluctuations ◽

International Importance ◽

Current Minimum ◽

Central Highlands ◽

Key Sites ◽

Long Term Trend ◽

Northern Highlands

Little is known about Mexican Duck Anas diazi biology and populations. We analyse long-term (1960–2000) trends of Mexican Duck numbers in Mexico and employ contemporary count data (1991–2000) from the U.S. Fish and Wildlife Service midwinter surveys to identify key sites for conservation using a complementarity approach. The overall Mexican Duck population showed a significant long-term increase of 2.5% per year, with large fluctuations throughout the study period. The Northern highlands population increased at an annual rate of 7.7%, while the Central highlands population showed no significant long-term trend. During the last decade, counts in both the Northern and Central highlands exhibited no significant change. At the site level, significant long-term increases occurred in four localities in the Northern highlands (Laguna Babï¿½cora +13.9% annually, Laguna Bustillos +25.9%, Laguna Mexicanos +20.4% and Laguna Santiaguillo +16.9%) and in three localities in the Central highlands (Languillo +15.3% annually, Presa Solís +8.9%, Zacapu +13.4%). Two sites in the Central highlands showed significant declines, in the long term (Lago de Chapala, -5.2% per year) and during the last decade (Lerma, -11.8% per year). The Northern highlands held 16% and the Central highlands 84% of the Mexican Duck population in the period 1960–2000; during the last decade, these figures were 31% and 69%, respectively. A set of priority sites for conservation of the Mexican Duck was identified, consisting of 15 sites holding more than 70% of the midwinter Mexican Duck counts in Mexico. Ten sites from the priority set also qualify for designation as wetlands of international importance under the Ramsar Convention on Wetlands, by holding ≥ 1% of the estimated population. Four of the priority sites are in the Northern highlands and 11 in the Central highlands, of which eight are distributed along the Rio Lerma drainage. The most urgent actions that need to be undertaken are to estimate the current minimum population size in Mexico; to establish a programme for monitoring populations in the priority sites, especially those located within the highly degraded Rio Lerma drainage; and to determine the most feasible management actions for the species, concentrating efforts around the priority sites.

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First record of the spider genus Wolongia Zhu, Kim & Song, 1997 from India with the description of a new species (Araneae, Tetragnathidae)

Zootaxa ◽

10.11646/zootaxa.4407.1.13 ◽

2018 ◽

Vol 4407 (1) ◽

pp. 145

Author(s):

JOBI J. MALAMEL ◽

KARUNNAPPILLI SHAMSUDHEEN NAFIN ◽

PRADEEP M. SANKARAN ◽

POTHALIL A. SEBASTIAN

Keyword(s):

New Species ◽

Yunnan Province ◽

Southwest China ◽

First Record ◽

Southern India ◽

Nominal Species ◽

Ramsar Convention ◽

International Importance ◽

Kerala State ◽

A New Species

Zhu et al. (1997) erected the tetragnathid genus Wolongia to accommodate Wolongia guoi Zhu, Kim & Song, 1997 and Wolongia wangi Zhu, Kim & Song, 1997 collected from the Sichuan and Shaanxi Provinces in China. In 2009, Ping et al. described Wolongia odontodes from the Gaoligong Mountains and remained with a nominal representation after the erection of the genus. This situation was somewhat rectified by Jin-long Wan & Xian-jin Peng (2013) reporting seven new species from the Gaoligong Mountains (Yunnan Province, southwest China). The genus currently with ten nominal species; three are known only from females, while seven are from both sexes (World Spider Catalog 2017). During our survey in Pathiramanal Island we found an undescribed Wolongia species. This is one of the most diverse areas of the Kerala state of Southern India, situated in the Vembanad Lake, a Ramsar Convention (2013) site (wetland of international importance). In this paper, we describe this new species and provide the first report of Wolongia from India.

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