Anser Erythropus Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA)

Total Page:16

File Type:pdf, Size:1020Kb

Anser Erythropus Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) TECHNICAL SERIES No. 36 International Single Species Action Plan for the Conservation of the Lesser White-fronted Goose (Western Palearctic Population) Anser erythropus Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) International Single Species Action Plan for the Conservation of the Lesser White-fronted Goose (Western Palearctic population) Anser erythropus AEWA Technical Series No. 36 October 2008 Prepared with financial support from: the Ministry of the Environment of Finland; the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety; the Directorate for Nature Management of Norway; and the Swedish Environmental Protection Agency AEWA Technical Series No. 36 Compiled by: Tim Jones1, Kirsten Martin 2, Boris Barov 3 & Szabolcs Nagy4 1 DJEnvironmental, Harpers Mill, Sterridge Valley, Berrynarbor, Ilfracombe, EX34 9TB, UK 2 UNEP/AEWA Secretariat, Hermann-Ehlers-Str. 10, 53113 Bonn, Germany 3 Birdlife International, European Division, Avenue de la Toison d'Or 67, 1060 Brussels, Belgium 4 Wetlands International, Bornsesteeg 69, Wageningen, the Netherlands Email: [email protected], [email protected], [email protected], [email protected] With contributions from: Tomas Aaravak, Sigute Alisauskiene, Hamid Amini, Åke Andersson, Maria Mihaela Antofie, Luba Baylan, Anna Belousova, Patrice Blanchet, Marie Björkland, Gerard Boere, Preben Claussen, Akram Eissa Darwich, Sergey Dereliev, Bart Ebbinge, Morten Ekker, Henri Engström, Martin Fichtler, Per Hansson, Thomas Heinicke, Baz Hughes, Esko Jaakkola, Hadhema Jwad, Lauri Kahanpää, Kees Koffijberg, Elena Kreuzberg, Robert Lacy, Petri Lampila, Torsten Larsson, Teemu Lehtiniemi, Szabolcs Lengyel, Monika Lesz, Anna-Carin Lundqvist, Juha Markkola, Juha Merila, Jean-Yves Mondain-Monval, Johann Mooij, Vladimir Morozov, Khairbek Mussabayev, Micheal O’Briain, Ingar J. Øien, Peter Örn, Matti Osara, John O’Sullivan, Maria Panayotopoulou, Christiane Paulus, Nikolai Petkov, Minna Ruokonen, Ivan Rusev, Eldar Rustamov, Oliver Schall, Wolfgang Scholze, Per Sjogren-Gulve, Sergey Sklyarenko, Øystein Størkersen, David A. Stroud, The Swedish Ornithological Society/BirdLife Sweden, Sami Timonen, Petteri Tolvanen, Maire Toming, Yannis Tsougrakis, Gerard van Dijk, Marko Valker, Seppo Vuolanto, Sergey Yerokhov. Milestones in the Production of the Plan - Initial expert workshop: 31 March – 2 April 2005, Lammi, Finland - First draft: Version 1.0, April 2005, presented to experts for technical review - Recommendation arising from the 13th Meeting of the Scientific Council of the Bonn Convention, 18 November 2005 - Second Draft: Version 2.0, February 2006, presented to experts Version 2.1, May 2006, presented to selected international experts Version 2.2, July 2006, presented to the Range States - Negotiation mission by AEWA Secretariat: January 2007 (Finland, Germany, Norway, Sweden), preliminary agreement achieved in November 2007 - ‘Committee for captive breeding, reintroduction and supplementation of Lesser White-fronted Geese in Fennoscandia’ established, initial meeting: 7-8 May 2008, Bonn, Germany - Third draft: Version 3.0, May 2008, presented to Range States Version 3.1, August 2008, presented to the 4th Meeting of the Parties to AEWA in September 2008, adopted with final amendments Geographical Scope This International Single Species Action Plan requires implementation in the following countries regularly supporting Lesser White-fronted Geese of the Western Palearctic Population: Azerbaijan, Bulgaria, Estonia, Finland, Germany, Greece, Hungary, Iraq, Islamic Republic of Iran, Kazakhstan, Lithuania, Netherlands, Norway, Poland, Romania, Russian Federation, Sweden, Syrian Arab Republic, Turkey, Turkmenistan, Ukraine and Uzbekistan. Reviews This International Single Species Action Plan should be revised in 2013. An emergency review shall be undertaken if there are sudden major changes liable to affect the Western Palearctic Population. Credits Thanks go to Gerard Boere, Sergey Dereliev, Bert Lenten, David Stroud, the European Commission and the French EU Presidency 2008 for their invaluable guidance, coordination and constructive criticism during the preparation and consultations of this Action Plan. Recommended Citation: Jones, T., Martin, K., Barov, B., Nagy, S. (Compilers). 2008. International Single Species Action Plan for the Conservation of the Western Palearctic Population of the Lesser White-fronted Goose Anser erythropus. AEWA Technical Series No.36. Bonn, Germany. Picture on the cover: © Ingar Jostein ∅ien Drawing on the inner cover: © Pavel Prochazka/BirdLife International Printing kindly sponsored by the Directorate for Nature Management of Norway. International Single Species Action Plan for the Conservation of the Lesser White-fronted Goose 1 AEWA Technical Series No. 36 CONTENTS Foreword by Mr. Bert Lenten, Executive Secretary, Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA)............................3 Preface and Note..........................................................................................................4 Executive Summary.....................................................................................................6 1. Biological Assessment.................................................................................................9 1.1. General Information.............................................................................................9 1.2. Taxonomy ..........................................................................................................10 1.3. Population Development....................................................................................11 1.4. Distribution throughout the Annual Cycle.........................................................15 1.5. Survival and Productivity, Life Cycle and Habitat Requirements .....................19 2. Available Key Knowledge.........................................................................................21 3. Threats .......................................................................................................................27 3.1. Background ........................................................................................................27 3.2. Overview of Species Threat Status ....................................................................27 3.3. Description of Threats........................................................................................28 4. Policies and Legislation Relevant for Management ..................................................42 4.1. International Conservation and Legal Status .....................................................42 4.2. Member States’ / Contracting Parties’ Obligations............................................42 4.3. National Policies, Legislation and Ongoing Activities ......................................45 4.4. Site and Habitat Protection and Research ..........................................................45 4.5. Recent Conservation Measures..........................................................................45 5. Framework for Action ...............................................................................................48 5.1. Lesser White-fronted Goose Action Plan Goal, Purpose, and Results ..............48 6. Activities by Result....................................................................................................53 7. Implementation..........................................................................................................60 8. References..................................................................................................................62 9. Annexes ........................................................................................................................I International Single Species Action Plan for the Conservation of the Lesser White-fronted Goose 2 AEWA Technical Series No. 36 Foreword by Mr. Bert Lenten, Executive Secretary, Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) During their life cycle, migratory waterbirds cover considerable distances in order to find the best ecological conditions and habitats for feeding, breeding and raising their young. However, migration is a perilous journey, presenting a wide range of threats. Only a small number of birds are actually threatened by natural events: it is sad but true that human activities are the source of most dangers migrating birds are exposed to. Flying over long distances means crossing many international borders and entering different political areas with their own environmental policies, legislation and conservation measures. It is clear that international cooperation between governments, NGOs and other stakeholders is needed along the whole flyway of a species in order to share knowledge and to coordinate conservation efforts. The necessary legal framework and instruments for such international cooperation are provided by international agreements such as the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA). One of these coordinating instruments for the conservation of biological diversity is in the form of International Single Species Action Plans (SSAP). They are being developed to find out more about populations of species with an unfavourable conservation status throughout their entire range, to identify underlying threats and, more importantly, to list all necessary conservation measures
Recommended publications
  • Egg Retrieval by Blue Geese.--Lorenz and Tinbergen (1938)
    202 General Notes [Auk, Vol. 90 Egg retrieval by Blue Geese.--Lorenz and Tinbergen (1938) used egg-retrieval behavior of Greylag Geese (Anser anser) to study simple instinctive motor patterns with an orienting component (taxis). They consideredthat such innate motor patterns "may have great taxonomic value for a species,a gentis, or even for a whole phylum." Poulsen (1953), finding the behavior to be present in several distinct systematicgroups concludedthat egg-retrieval behavior had evolved convergently in these groupsand could not be used as a taxonomiccharacter. He listed 42 species representing12 orders that rolled displacedeggs back into nests and only 2 orders (Pelecaniformes,Passedformes) that did not. There was no variation between species within an order; either all speciestested retrieved eggs or none did. Poulsen (1953: 32) and Sowks (1955: 101-102) together list 12 speciesof Anseriformesthat re- trieved eggs (Cygnus 2, Anser 4, Tadorna 1, Anas 3, Aythya 2). It is thus of interest that no female Blue Geese (Anser caerulescens) of 10 tested by Gooch (1958: 102) retrieved displaced eggs. As Gooch pointed out, the absenceof egg- retrieval behavior in the Blue Goose, a speciesthat has been included in the New World genus Chen (A.O.U., 1957) might have taxonomic significanceat the generic level. The observations reported here show that the proclivity and ability to re- trieve eggs is well-developed in Blue Geese. Several authorities (e.g. Delacour and Mayr, 1945; Johnsgard, 1965) have regarded Chen as invalid, placing it in Anser. Both Blue and LesserSnow Geeseare regardedin this paper as color phasesof the polymorphic subspeciesAnser c.
    [Show full text]
  • Wild Geese in Captivity by Bob Elgas Big Timber, Montana
    Wild Geese in Captivity by Bob Elgas Big Timber, Montana Man has always been fascinated by, Wild geese were frequently depicted exists, and wild geese have become and has had a close association with, on ancient structures. Indeed, the increasingly popular with avicul­ wild geese. As a result of their ten- Swan goose of China, and the Greylag turists. dency to vocalize an objection to of Europe were domesticated eons Throughout the world there are nocturnal disturbances, the early ago, long before the dawn of written some 15 species of wild geese, with Romans utilized them as watchdogs.. history. Even today the fascination numerous sub-species, all of which are native to the northern hemi­ sphere. Interestingly, there are no true geese in the southern hemisphere. South America is represented by a specialized group known as sheld­ geese, while Africa and Australia are represented by a number of birds with goose-like characteristics. Sheld­ geese are actually modified ducks which, through the evolutionary process, have assumed goose-like similarities. One of the more obvious differences is the dimorphism of sexes characterized by sheldgeese ­ males being of completely different plumage than females. In true geese, both sexes are alike. Although the birds from the southern hemisphere are interesting in their own right, the differences are so great that they can­ not be classified with the true geese. The geese of the northern hemi­ sphere are divided into two groups ­ the genus Anset; which is representa­ tive of the true geese, and the genus A representative ofthe genus Anser is thispair ofEmperorgeese (Anser canagicus).
    [Show full text]
  • Recent Introgression Between Taiga Bean Goose and Tundra Bean Goose Results in a Largely Homogeneous Landscape of Genetic Differentiation
    Heredity (2020) 125:73–84 https://doi.org/10.1038/s41437-020-0322-z ARTICLE Recent introgression between Taiga Bean Goose and Tundra Bean Goose results in a largely homogeneous landscape of genetic differentiation 1 2 3 1 Jente Ottenburghs ● Johanna Honka ● Gerard J. D. M. Müskens ● Hans Ellegren Received: 12 December 2019 / Revised: 11 May 2020 / Accepted: 12 May 2020 / Published online: 26 May 2020 © The Author(s) 2020. This article is published with open access Abstract Several studies have uncovered a highly heterogeneous landscape of genetic differentiation across the genomes of closely related species. Specifically, genetic differentiation is often concentrated in particular genomic regions (“islands of differentiation”) that might contain barrier loci contributing to reproductive isolation, whereas the rest of the genome is homogenized by introgression. Alternatively, linked selection can produce differentiation islands in allopatry without introgression. We explored the influence of introgression on the landscape of genetic differentiation in two hybridizing goose taxa: the Taiga Bean Goose (Anser fabalis) and the Tundra Bean Goose (A. serrirostris). We re-sequenced the whole 1234567890();,: 1234567890();,: genomes of 18 individuals (9 of each taxon) and, using a combination of population genomic summary statistics and demographic modeling, we reconstructed the evolutionary history of these birds. Next, we quantified the impact of introgression on the build-up and maintenance of genetic differentiation. We found evidence for a scenario of allopatric divergence (about 2.5 million years ago) followed by recent secondary contact (about 60,000 years ago). Subsequent introgression events led to high levels of gene flow, mainly from the Tundra Bean Goose into the Taiga Bean Goose.
    [Show full text]
  • Movements of Wild Ruddy Shelducks in the Central Asian Flyway and Their Spatial Relationship to Outbreaks of Highly Pathogenic Avian Influenza H5N1
    Viruses 2013, 5, 2129-2152; doi:10.3390/v5092129 OPEN ACCESS viruses ISSN 1999-4915 www.mdpi.com/journal/viruses Article Movements of Wild Ruddy Shelducks in the Central Asian Flyway and Their Spatial Relationship to Outbreaks of Highly Pathogenic Avian Influenza H5N1 John Y. Takekawa 1,*, Diann J. Prosser 2, Bridget M. Collins 2, David C. Douglas 3, William M. Perry 4, Baoping Yan 5, Luo Ze 5, Yuansheng Hou 6, Fumin Lei 7, Tianxian Li 8, Yongdong Li 8 and Scott H. Newman 9,† 1 San Francisco Bay Estuary Field Station, Western Ecological Research Center, U.S. Geological Survey, 505 Azuar Drive, Vallejo, CA 94592, USA 2 Patuxent Wildlife Research Center, U.S. Geological Survey, Beltsville, MD 20705, USA; E-Mails: [email protected] (D.J.P.); [email protected] (B.M.C.) 3 Alaska Science Center, U.S. Geological Survey, Juneau, AK 99801, USA; E-Mail: [email protected] 4 Dixon Field Station, Western Ecological Research Center, U.S. Geological Survey, 800 Business Park Drive, Suite D, Dixon, CA 95620, USA; E-Mail: [email protected] 5 Computer Network Information Center (CNIC), Chinese Academy of Sciences, Beijing 100080, China; E-Mails: [email protected] (B.Y.); [email protected] (L.Z.) 6 Qinghai State Forestry Administration, Qinghai Lake National Nature Reserve (QLNNR), Xining 25700, Qinghai, China; E-Mail: [email protected] 7 Institute of Zoology (IOZ), Chinese Academy of Sciences, Beijing 100101, China; E-Mail: [email protected] 8 Institute of Virology (WIV), Chinese Academy of Sciences, Wuhan 430071, China; E-Mails: [email protected] (T.L.); [email protected] (Y.L.) 9 EMPRES Wildlife Health and Ecology Unit, Animal Health Service, Animal Production and Health Division, Food and Agriculture Organization of the United Nations, Rome 00153, Italy; E-Mail: [email protected] † Current address: Emergency Center for Transboundary Animal Diseases (ECTAD)-Vietnam, Food and Agriculture Organization of the United Nations (FAO), No.
    [Show full text]
  • 4 East Dongting Lake P3-19
    3 The functional use of East Dongting Lake, China, by wintering geese ANTHONY D. FOX1, CAO LEI2*, MARK BARTER3, EILEEN C. REES4, RICHARD D. HEARN4, CONG PEI HAO2, WANG XIN2, ZHANG YONG2, DOU SONG TAO2 & SHAO XU FANG2 1Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, University of Aarhus, Kalø, Grenåvej 14, DK-8410 Rønde, Denmark. 2School of Life Science, University of Science and Technology of China, Hefei, Anhui 230026, PR China. 321 Chivalry Avenue, Glen Waverley, Victoria 3150, Australia. 4Wildfowl and Wetlands Trust, Slimbridge, Gloucestershire GL2 7BT, UK. *Correspondence author. E-mail: [email protected] Abstract A survey and study of geese wintering at the East Dongting Lake National Nature Reserve, China, in February 2008 revealed internationally important numbers of Lesser White-fronted Geese Anser erythropus, Greater White-fronted Geese Anser albifrons and Bean Geese Anser fabilis using the site, as well as small numbers of Greylag Geese Anser anser. Only five Swan Geese Anser cygnoides were recorded, compared with several hundreds in the 1990s. Globally important numbers of Lesser White-fronted Geese spend the majority of daylight hours feeding on short grassland and sedge meadows within the core reserve areas of the National Nature Reserve, and also roost there at night. Greater White-fronted Geese were not studied in detail, but showed similar behaviour. Large numbers of Bean Geese of both serrirostris and middendorffi races showed differing feeding strategies. The small numbers of serrirostris tended to roost and feed in or near the reserve on short grassland, as did small proportions of middendorffi. However, the majority of middendorffi slept within the confines of the reserve by day and flew out at dusk, to nocturnal feeding areas at least 40 km north on the far side of the Yangtze River, returning 40–80 min after first light.
    [Show full text]
  • "Bird of Mystery:" the Tule Greater White-Fronted Goose
    Searching out a Central Valley "bird of mystery:" The Tule Greater White-fronted Goose John Y. Takekawa, U. S. Geological Survey, Western Ecological Research Center, San Francisco Bay Estuary Field Station, 505 Azuar Drive, Vallejo, CA 94592 "We lay frozen in the ditch for 30 minutes, peering cautiously through the cattails along the edge of the refuge road with binocu• lars to see into the next pond. The shallow water was filled with thousands of ducks, lesser snow geese, Ross' geese, and greater white-fronted geese, but we intently watched the small flock of 15• 20 geese swimming slowly at the edge of thepond, adjacent to a net hidden along the graveled road. These geese were larger-bodied and darker than the other greater white-fronted geese in the pond, with darker heads and larger bills. With the flip of a switch, the rockets roared to life, pulling the camouflaged nets over theflock. We scrambled up the bank and raced quickly to secure the net, for these were Tule Geese, the most uncommon subspecies of greater white-fronted geese in the world. " [From the author's field notes] GREATER WHITE-FRONTED GOOSE POPULAnONS Greater White-fronted Geese (Anser albifrons) are one of the few waterfowl species that breeds across the Arctic from Russia to Canada and Greenland. Four subspecies are currently recognized (Owen 1980), includ• ing the nominate European form (A. a. albifrons), The North American "Pacific White-fronted Goose" (A. a.frontalis), the Greenland race (A. a. flavirostris), and, the subject of this paper, the "Tule Goose" (A. a.
    [Show full text]
  • 2.10.1 Numbers and Distribution Greylag Goose Has a Complex Population Structure in Europe A
    2.10 Greylag Goose ( Anser anser ) 2.10.1 Numbers and distribution Greylag Goose has a complex population structure in Europe and many countries have non-migratory populations which are joined by migrants on passage and in winter. Denmark, The Netherlands, Spain, the UK, Germany and Hungary hold large wintering populations. This is a numerous species in Central Asia and Iran, with important breeding and staging sites in Kazakhstan, and wintering sites in Uzbekistan, Turkmenistan and especially Iran. The highest counts of Greylag Geese have been made at sites in Russia and Kazakhstan (Table 2.9). 100,000 have been recorded staging at the Stepnoi State Refuge, and 50,000 at the Svir Delta in Russia, and 70,000 were counted at Sholack Lake, Kazakhstan in January 1995. Large numbers winter in Spain, where 43,521 at The Doñana National Park 1n 1995 and 39,296 at Lagunas de Vilafafila in 1999 are high recent count totals. Iran has more records of important concentrations of Greylag Geese than other countries with 48,100 at Fereydoon Kenar in 2003 by far the highest count, followed by 12,700 at Varamin Lake in 1997. In Northern Europe, 57,104 at Westerschelde and Saeftinge, The Netherlands in 1999, 22,710 at Filso Lake, Denmark in 1996 and 19,150 at Loch of Skene, Scotland in 1991 are typical high counts. In central and eastern Europe, 22,000 were counted at Fulupszallas Szikes To, Hungary, in 1995, and 21,822 at the Danube Delta, Romania in 1992. There are important winter concentrations in North Africa, where Lac Fetzara, Algeria, held 13,400 in January 1994.
    [Show full text]
  • The History of Potato- Eating by Wildfowl in Britain
    The history of potato- eating by wildfowl in Britain Janet Kear Summary T h e development of potato-eating and swede turnip-eating b y wildfowl is linked to agricultural changes and climatic conditions in Britain. The tradition of taking waste potatoes from harvested fields began in Scotland among Mallard at least a century ago. A few Lancashire Pink-footed Geese acquired the habit about 30 years later, although potato-eating did not bccomc widespread until the 1920’s. On the other hand, Scottish Greylag Geese and some Whooper Swans have selected a regular diet of potatoes for only 20-30 years. Turnip-eating has been sporadic in bad weather among Whooper Swans in Aberdeenshire and became traditional after 1947 in the Greylag flocks on the Isle of Bute. The techniques used by the birds in dealing w’ith roots are briefly described. Land drainage and the shift of arable cultivation, so much a part of agricultural history in Britain, are not wholly inimical to wildfowl. Indeed the ease with which many species have accommodated themselves to new foods is both remarkable and worthy of detailed study in the context of conservation. An undisturbed roost, generally a body of water, remains essential but wildfowl have shown increasing readiness to forage many miles away. Further, the flooding of new reservoirs has enabled the birds to exploit areas in which hitherto they were seldom present. Agricultural changes There is little doubt that the first product of agriculture to be utilised by wildfowl was spilled grain from the stubbles of harvested cereal fields.
    [Show full text]
  • (Icelandic-Breeding & Feral Populations) in Ireland
    An assessment of the distribution range of Greylag (Icelandic-breeding & feral populations) in Ireland Helen Boland & Olivia Crowe Final report to the National Parks and Wildlife Service and the Northern Ireland Environment Agency December 2008 Address for correspondence: BirdWatch Ireland, 1 Springmount, Newtownmountkennedy, Co. Wicklow. Phone: + 353 1 2819878 Fax: + 353 1 2819763 Email: [email protected] Table of contents Summary ....................................................................................................................................................... 1 Introduction.................................................................................................................................................... 2 Methods......................................................................................................................................................... 2 Results........................................................................................................................................................... 3 Coverage................................................................................................................................................... 3 Distribution ................................................................................................................................................ 5 Site accounts............................................................................................................................................
    [Show full text]
  • A New Anseriform Genus and Species from the Nebraska Pliocene
    A NEW ANSERIFORM GENUS AND SPECIES FROM THE NEBRASKA PLIOCENE LESTER L. SHORT AMONGavian fossilson loan to me from the University of Nebraska State Museumis the tarsometatarsusof a goose-likeanseriform bird from the early Plioceneof Nebraska. The tarsometatarsushas somefeatures of geeseand swans,and of the anatinetribe Tadornini,but it alsotends somewhattoward the Cairinini in someof its features. Comparisonwith extant and fossilAnseriformes in the American Museum of Natural History and the United States National Museum and a study of the literature have convincedme that this tarsometatarsusrepresents an undescribed speciesthat is sufficientlydistinct to warrant placementin a new genus. I thank the authoritiesof the above-mentionedmuseum for their help in conductingmy studies.I am gratefulto CharlesG. Sibley,who originally borrowedthe fossil,for permissionto studyit. It is a pleasureto acknowl- edgethe aid of C. B. Schultzfor the loan of the material, and H. B. Gundersonof the Universityof NebraskaState Museumfor usefulinfor- mationconcerning the fossil. The use and potential importance of stereophotographyin avian paleontologyhas beendiscussed by Cracraft (1968: 3-4). I hope the stereophotographsreproduced here will facilitatecomparisons by avian paleontologists. Heteroehen, new genus Type of genus.--Heterochenpratensis, new species. Diagnosis.--Anseriformtarsometatarsus, near the size of Anser anser, and characterizedby: trochleaenot spreadgreatly as in modern swans, geeseand sheldrakes;outer surfacegently curving toward distal end
    [Show full text]
  • Ducks, Geese, and Swans of the World by Paul A
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Ducks, Geese, and Swans of the World by Paul A. Johnsgard Papers in the Biological Sciences 2010 Ducks, Geese, and Swans of the World: Index Paul A. Johnsgard University of Nebraska-Lincoln, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/biosciducksgeeseswans Part of the Ornithology Commons Johnsgard, Paul A., "Ducks, Geese, and Swans of the World: Index" (2010). Ducks, Geese, and Swans of the World by Paul A. Johnsgard. 19. https://digitalcommons.unl.edu/biosciducksgeeseswans/19 This Article is brought to you for free and open access by the Papers in the Biological Sciences at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Ducks, Geese, and Swans of the World by Paul A. Johnsgard by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Index The following index is limited to the species of Anatidae; species of other bird families are not indexed, nor are subspecies included. However, vernacular names applied to certain subspecies that sometimes are considered full species are included, as are some generic names that are not utilized in this book but which are still sometimes applied to par­ ticular species or species groups. Complete indexing is limited to the entries that correspond to the vernacular names utilized in this book; in these cases the primary species account is indicated in italics. Other vernacular or scientific names are indexed to the section of the principal account only. Abyssinian blue-winged goose. See atratus, Cygnus, 31 Bernier teal. See Madagascan teal blue-winged goose atricapilla, Heteronetta, 365 bewickii, Cygnus, 44 acuta, Anas, 233 aucklandica, Anas, 214 Bewick swan, 38, 43, 44-47; PI.
    [Show full text]
  • Print This Article
    107 Changes in numbers of staging and wintering geese in Sweden: 1977/78–2019/20 LEIF NILSSON1,* & HAKON KAMPE-PERSSON2 1Department of Biology, Biodiversity, University of Lund, Ecology Building, SE-223 62 Lund, Sweden. 2Pulma i, Gl das pagasts, Jelgavas novads, LV-3040 N kotne, Latvia. *Correspondence author. E-mail: [email protected] Abstract Regular goose counts made throughout Sweden since 1977/78 show that the total numbers staging and wintering in the country have increased markedly over the decades. October totals were of 51,000 geese in 1977, rising to c. 600,000 in 2018, during which time January totals also increased from 31,000 to 252,000 birds. The greatest change recorded was for the Greylag Goose Anser anser, numbers of which rose from 20,000 to > 250,000 individuals over a 35-year period. Changes in migration and wintering habits have also been recorded, with mid-winter (January) Greylag Goose numbers now amounting to 20–33% of the September totals in recent years, illustrating increases in the proportion of the population now wintering in the country. Moreover, large numbers of Barnacle Geese Branta leucopsis have started to stage and over-winter in Sweden, and are now becoming the commonest species, with 365,000 recorded in autumn 2019. Key words: autumn, goose counts, migration patterns, population increase, winter. During recent decades, most Northwest which was formerly widespread across European goose populations have increased the Scandinavian mountain chain but is markedly (Madsen et al. 1999; Fox et al. now reduced to very few breeding pairs, 2010; Fox & Madsen 2017; Fox & Leafloor mainly in Norway, with a re-introduced 2018), with some reaching levels where population occurring in Sweden (Andersson they have come into conflict with & Holmqvist 2010; Fox & Leafloor agriculture when feeding on crops causes 2018).
    [Show full text]