Bibliographies: 'Synchronous winter waterbird census'

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Wijethunge, Iromi Kusum, Jingpeng Cao, Fanjuan Meng, Zheping Xu, Qingshan Zhao, and Lei Cao. "Occurrence dataset from the waterbird survey of the middle and lower Huai He floodplain, China." Biodiversity Data Journal 13 (May 22, 2025): e158384. https://doi.org/10.3897/BDJ.13.e158384.

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The Huai He floodplain in Anhui and Jiangsu Provinces, an important component of the East Asian-Australasian Flyway (EAAF), sustains critical wetland habitats for migratory waterbirds, including four threatened species on the IUCN Red List: critically endangered Aythya baeri (Radde, 1863), endangered Anser cygnoides (Linnaeus, 1758) and vulnerable Melanitta fusca (Linnaeus, 1758) and Aythya ferina (Linnaeus, 1758). Despite its biogeographic significance as a transitional zone between the Yangtze and Yellow River floodplains, this region remains one of China's most understudied and ecologically degraded freshwater systems. Historical pollution events and contemporary anthropogenic pressures – agricultural intensification, hydrological fragmentation and invasive species - have severely compromised wetland integrity. During mid-December 2005 and November to December 2006, standardised surveys employed fixed-radius point counts (158 sites) with the component counting method to enhance accuracy.We present the first comprehensive waterbird dataset for the Anhui and Jiangsu part of the Huai He floodplain, comprising 44 species (32,517 individuals) recorded across 30 wetlands during 2005–2006 surveys. All occurrence data adhere to Darwin Core standards and are accessible via the Global Biodiversity Information Facility, providing spatial-temporal baselines for abundance and distributional data for waterbirds in this region.

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Kostiushyn, V. A., and Yu O. Andryushchenko. "Protected Waterbird Species on the Azov-Black Sea Coast in the Winter Seasons 2009–2022." zoodiversity 57, no. 6 (2023): 563–72. http://dx.doi.org/10.15407/zoo2023.06.563.

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The article presents data on waterbirds from the Red Data Book of Ukraine wintering in the Azov-Black Sea coastal wetlands during 2009‒2022. A total of 27 protected waterbird species were recorded during the International Waterbird Census. The average number of protected birds was 13,631 + 2,828 ind., the maximum — 35,768 ind. Detailed information on species composition and bird numbers is given for 14 wetlands, the most valuable for waterbirds.

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Etayeb, Khaled, Ashraf Galidana, Ali Berbash, et al. "Results of the eighteenth winter waterbird census in Libya (IWC), January 2022." Open Veterinary Journal 13, no. 4 (2023): 407. http://dx.doi.org/10.5455/ovj.2023.v13.i4.2.

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Background: Libyan wetlands are diverse; the coastline of Libya in particular has different kinds of wetlands such as salt marshes, bays, lakes, lagoons and islands. These varieties in habitats provide good shelters and foraging sites for migratory birds during their journeys between Eurasia and Africa. Since the beginning of the Libyan winter census of waterbirds (Libya IWC) in 2005 which continued regularly until 2012, it had relatively the same performance in the number of covered sites. Since 2013, due to the security situation that Libya has experienced as a result of wars and conflict which negatively affected the quality of the IWC in Libya, the number of sites has dramatically decreased, reaching only 6 sites during the middle of the previous decade. Aim: The IWC 2022 aimed to counting the birds along the Libyan coast from January 10 to 29. Methods: The census activities were conducted from the dawn to dusk along the period of the study, by using high quality Telescopes, binoculars and digital cameras for the documentation. Point transects method was used to cover the sites. Results: The results of this year showed that a total of 64 sites were covered, 68 species of waterbirds were counted, with an abundance of 61,850 individuals. During the census period, a total of 52 non-waterbirds species found in Wetlands were recorded, and the number of individuals was 14,836 birds. A total of 18 threatened species were observed during this survey, 12 of them are mentioned in the IUCN Red-list, and 9 species are mentioned in the RAC/SPA annex II as threatened in the Mediterranean, where the species; Larus audouinii (Payraudeau, 1826), Larus genei (Breme, 1839) and Puffinus yelkouan (Acerbi, 1827) are mentioned in both of them. Conclusion: The lack of the number of Ornithologists and bird watchers is still one of the factors affecting the quality of the IWC in Libya, as well as lack of funding remains an important factor that plays a major role in the success of the waterbirds census.

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Andryuschenko, Yu O., and V. A. Kostiushyn. "Wintering Waterbirds in the Wetlands of the Azov-Black Sea Region of Ukraine at the Beginning of the 21st Century — Species Composition, Abundance, Distribution and Tendencies." zoodiversity 58, no. 4 (2024): 349–68. http://dx.doi.org/10.15407/zoo2024.04.349.

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Data collection on wintering waterbirds in the wetlands of the Azov-Black Sea region of Ukraine began in the late 1980s, mainly thanks to the International Waterbird Census (IWC), which has become more extensive and regular since about 2005. This article is devoted to generalization of data on species composition, abundance of birds and their spatial distribution in that region based on the results of the winter census 2005–2022. The long-term dynamics of the waterbirds number and the peculiarities of the species distribution are mostly analyzed for abundant bird species. General information about common and rare species is also given.

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Bourass, Essam, Nicola Baccetti, Wajih Bashimam, et al. "Results of the seventh winter waterbird census in Libya, Jan-Feb 2011." Bulletin of the African Bird Club 20, no. 1 (2013): 20–26. http://dx.doi.org/10.5962/p.309989.

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6

Božič, Luka. "Results of the January 2017 waterbird census in Slovenia." Acrocephalus 38, no. 174-175 (2017): 203–15. http://dx.doi.org/10.1515/acro-2017-0012.

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Summary In 2017, the International Waterbird Census (IWC) was carried out in Slovenia on January 14 and 15. Waterbirds were counted on all larger rivers, along the entire Slovenian Coastland and on most of the major standing waters in the country. During the census, in which 235 observers took part, 413 sections of the rivers and coastal sea with a total length of 1,427 km and 200 other localities (164 standing waters and 36 streams) were surveyed. The census was characterized by harsh winter conditions and high proportion of frozen water bodies. Altogether, 51,790 waterbirds of 61 species were counted. Thus, the number of waterbirds and the number of species recorded were close to the 21-year average. The highest numbers of waterbirds were counted in the Drava count area, i.e. 20,064 individuals (38.7% of all waterbirds in Slovenia). By far the most numerous species was Mallard Anas platyrhynchos (46.1% of all waterbirds), followed by Coot Fulica atra (6.8% of all waterbirds), Cormorant Phalacrocorax carbo (5.9% of all waterbirds), Black-headed Gull Chroicocephalus ridibundus (5.7% of all waterbirds) and Mute Swan Cygnus olor (3.9% of all waterbirds). The number of 1,000 counted individuals was also surpassed by Yellow-legged Gull Larus michahellis, Teal An. crecca, Tufted Duck Aythya fuligula, White-fronted Goose Anser albifrons, Pygmy Cormorant P. pygmeus and Grey Heron Ardea cinerea. Among the rarer recorded species, the Red-breasted Goose Branta ruficollis (registered for the first time during the January Waterbird Censuses and only for the third time ever in Slovenia) and Barnacle Goose Branta leucopsis (the first probable A category individual for IWC and Slovenia) deserve special mention. Numbers of the following species were the highest so far recorded during the IWC: Mandarin Duck Aix galericulata (together with 2006 and 2012), Pintail An. acuta, Ferruginous Duck Ay. nyroca, Long-tailed Duck Clangula hyemalis (together with 2003), Goosander Mergus merganser, Pygmy Cormorant, Herring Gull L. argentatus and Caspian Gull L. cachinnans. Number of Pochards Ay. ferina was the lowest so far recorded during the IWC.

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Stanchev, Radoslav, and Boris Nikolov. "Wetlands importance for the waterfowl species (order Anseriformes) wintering in Bulgaria, based on the Mid-Winter Waterbird Census data." Journal of the Bulgarian Geographical Society 52 (May 5, 2025): 79–92. https://doi.org/10.3897/jbgs.e144247.

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The main approach for the conservation of wintering waterbirds is through the identification of wintering sites, the assessment of their abundance and the determination of wintering population trends. The target sites are set for the implementation of management measures for both wintering species populations and sites falling within the Natura 2000 National Ecological Network. The aim of the present study is to identify the most important waterbodies in the country, based on data from the mid-winter waterbird census during the period 1977–2021. The assessment covers 75 waterbodies falling within the following five area categories used in the MWWC—the Danube River, the North Black Sea Coast, the South Black Sea Coast, natural and artificial waterbodies in North and South Bulgaria. The assessment was made from the analysis of data on 32 species of waterfowl birds, which were split into two groups—24 common species occurring in winter (with numbers over 500 individuals recorded during the study period) and eight rare species (with total numbers less than 500 individuals). The results show that the wetlands along the Black Sea Coast, the big inland reservoirs and the Danube River are the regions most frequently inhabited by wintering waterfowl, holding the highest abundance and number of species. Conservation value indices were calculated for each site, as well as biodiversity indices like the Shannon-Winner and Simpson indices, which identified which wetlands are of greatest the importance for the protected, rare and dominant waterbird species.

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Sayoud, M. S., H. Salhi, B. Chalabi, et al. "The first coordinated trans-North African mid-winter waterbird census: The contribution of the International Waterbird Census to the conservation of waterbirds and wetlands at a biogeographical level." Biological Conservation 206 (February 2017): 11–20. http://dx.doi.org/10.1016/j.biocon.2016.12.005.

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9

Stanchev, Radoslav, and Boris Nikolov. "Wetlands importance for the waterfowl species (order Anseriformes) wintering in Bulgaria, based on the Mid-Winter Waterbird Census data." Journal of the Bulgarian Geographical Society 52 (May 5, 2025): 79–92. https://doi.org/10.3897/jbgs.e144247.

Full text

Abstract:

The main approach for the conservation of wintering waterbirds is through the identification of wintering sites, the assessment of their abundance and the determination of wintering population trends. The target sites are set for the implementation of management measures for both wintering species populations and sites falling within the Natura 2000 National Ecological Network. The aim of the present study is to identify the most important waterbodies in the country, based on data from the mid-winter waterbird census during the period 1977&ndash;2021. The assessment covers 75 waterbodies falling within the following five area categories used in the MWWC&mdash;the Danube River, the North Black Sea Coast, the South Black Sea Coast, natural and artificial waterbodies in North and South Bulgaria. The assessment was made from the analysis of data on 32 species of waterfowl birds, which were split into two groups&mdash;24 common species occurring in winter (with numbers over 500 individuals recorded during the study period) and eight rare species (with total numbers less than 500 individuals). The results show that the wetlands along the Black Sea Coast, the big inland reservoirs and the Danube River are the regions most frequently inhabited by wintering waterfowl, holding the highest abundance and number of species. Conservation value indices were calculated for each site, as well as biodiversity indices like the Shannon-Winner and Simpson indices, which identified which wetlands are of greatest the importance for the protected, rare and dominant waterbird species.

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10

Schuckard, Rob, David S. Melville, Penelope Bilton, Darryl MacKenzie, Willie Cook, and Don Cooper. "A comparison of spring (November), summer (February), and winter (June) wader counts from Farewell Spit, 1998–2019." Notornis 67, no. 4 (2020): 635. https://doi.org/10.63172/805839dscpki.

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Co-ordinated counts of waders across New Zealand have been undertaken in November and June since 1983; the consistent timing of counts aimed to reduce variation from the effect of seasonal changes in bird numbers. The Australian Shorebird census and the wider Asian Waterbird Census, however, are conducted in January, making direct comparison with the New Zealand counts potentially problematic, especially if an attempt is to be made to assess total flyway populations. Since 1998 waders on Farewell Spit (40°30.5 ́S, 172°45 ́E to 40°33.5 ́N 173°02 ́E) have been counted in February as well as in November and June. Counts of bar-tailed godwit and ruddy turnstone were on average 20% and 35% higher in February compared to November, respectively. Also, counts of the endemic migratory South Island pied oystercatcher were 15% higher in February compared to June. The improvement of data for overall population assessments is not only important for establishing trends of species but is also important for applying the 1% population criterion for wader site assessments.

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Academic literature on the topic 'Synchronous winter waterbird census'

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Journal articles on the topic "Synchronous winter waterbird census"