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Ornithology

2010

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Articles 151 - 168 of 168

Full-Text Articles in Animal Sciences

Ducks, Geese, And Swans Of The World: Tribe Tachyerini (Steamer Ducks), Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Tribe Tachyerini (Steamer Ducks), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Flying Steamer Duck
Magellanic Flightless Steamer Duck
Falkland Flightless Steamer Duck

The South American steamer ducks have at times been included with the shelducks, but differ enough from them in structure and behavior to be regarded as a separate but closely related tribe. There are three species very similar in appearance; two are essentially flightless. All are found off the coasts of southern South America and the Falkland Islands, where they feed on mollusks and other marine invertebrates. The males differ slightly from females in their plumage and vocalizations, but in both sexes iridescent coloration is totally lacking and only …


Ducks, Geese, And Swans Of The World: Tribe Cairinini (Perching Ducks), Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Tribe Cairinini (Perching Ducks), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Spur-winged Goose
Muscovy Duck
White-winged Wood Duck
Comb Duck
Hartlaub Duck
Green Pygmy Goose
Cotton Pygmy Goose
African Pygmy Goose
Ringed Teal
North American Wood Duck
Mandarin Duck
Australian Wood Duck
Brazilian Teal

This group of 13 species of primarily perching waterfowl is a rather heterogeneous assemblage of birds that are not easily characterized. In addition to being generally perching and cavity-nesting, they also have fairly wide, rounded wings, elongated tails, and sometimes also relatively long legs. Many of the species exhibit a great deal of iridescent coloration in their plumage, even among females, and in a few species nearly …


Ducks, Geese, And Swans Of The World, Revised Edition [Complete Work], Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World, Revised Edition [Complete Work], Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

The only one-volume comprehensive survey of the family Anatidae available in English, this book combines lavish illustration with information on the natural history, distribution and status, and identification of all the species.

After an introductory discussion of the thirteen tribes of Anatidae, separate accounts follow for each of the nearly 150 recognized species. These include scientific and vernacular names (in French, German, and Spanish as well as English), descriptions of the distribution of all recognized subspecies, selected weights and measurements, and identification criteria for both sexes and various age classes. The “Natural History” section of each species account considers habitats, …


Ducks, Geese, And Swans Of The World: Tribe Merganettini (Torrent Duck), Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Tribe Merganettini (Torrent Duck), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Torrent Duck
This remarkable stream-dwelling duck of the Andean mountains is certainly one of the most specialized of all waterfowl, and in part its anatomical and behavioral specializations have obscured its basic relationships, which appear to be with either the perching ducks or the dabbling ducks. In the absence of definitive evidence, it seems reasonable to maintain a separate tribe for this species, which exists as a series of relatively isolated populations between Venezuela and Tierra del Fuego that vary greatly in male plumage characteristics. Torrent ducks are essentially cavity- or ledge-nesting forms, although only a few nests have been …


Ducks, Geese, And Swans Of The World: Tribe Aythyini (Pochards), Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Tribe Aythyini (Pochards), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Pink-headed Duck ● Red-crested Pochard ● Southern Pochard ● Rosybill ● Canvasback ● Eurasian Pochard ● Redhead ● Ring-necked Duck ● Australasian White-eye ● Siberian White-eye (Baer Pochard) ● Ferruginous White-eye ● Madagascan White-eye ● Tufted Duck ● New Zealand Scaup ● Greater Scaup ● Lesser Scaup

This tribe of primarily fresh-water diving ducks contains 16 species that collectively may be called pochards. The tribe has a nearly worldwide distribution, but only a few of its species have ranges that extend beyond a single continent. In addition to 15 species that are very similar in body proportions and diving adaptations, …


Ducks, Geese, And Swans Of The World: Tribe Anatini (Dabbling Or Surface-Feeding Ducks), Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Tribe Anatini (Dabbling Or Surface-Feeding Ducks), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Blue Duck ● Salvadori Duck ● African Black Duck ● Eurasian Wigeon ● American Wigeon ● Chiloe Wigeon ● Falcated Duck ● Gadwall ● Baikal Teal ● Green-winged Teal ● Speckled Teal ● Cape Teal ● Madagascan Teal ● Gray Teal ● Chestnut Teal ● Brown Teal ● Mallard ● North American Black Duck ● Meller Duck ● Yellow-billed Duck ● Gray Duck ● Philippine Duck ● Bronze-winged Duck ● Crested Duck ● Pintail ● Brown Pintail ● White-cheeked Pintail ● Red-billed Pintail ● Silver Teal ● Hottentot Teal ● Garganey ● Blue-winged Teal ● Cinnamon Teal ● Red Shoveler …


Ducks, Geese, And Swans Of The World: Tribe Mergini (Sea Ducks), Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Tribe Mergini (Sea Ducks), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Eider (Common Eider) ● King Eider ● Spectacled Eider ● Steller Eider ● Labrador Duck ● Harlequin Duck ● Long-tailed Duck (Oldsquaw) ● Black Scoter ● Surf Scoter ● White-winged Scoter ● Bufflehead ● BroBarrow Goldeneye ● Common Goldeneye ● Hooded Merganser ● Smew ● Brazilian Merganser ● Red-breasted Merganser ● Chinese Merganser ● Goosander (Common Merganser) ● Auckland Island Merganser

The sea duck tribe, which here includes the eiders, consists of 20 species that are all superb diving birds. They are found in fresh-water as well as marine habitats, and primarily have Northern Hemisphere distribution patterns. Except for the …


Ducks, Geese, And Swans Of The World: Tribe Oxyurini (Stiff-Tailed Ducks), Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Tribe Oxyurini (Stiff-Tailed Ducks), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Black-headed Duck
Masked Duck
Ruddy Duck
White-headed Duck
Maccoa Duck
Argentine Blue-billed Duck
Australian Blue-billed Duck
Musk Duck

The stiff-tailed ducks are characterized by several unusual features in addition to their long, stiffened tail feathers that serve as underwater rudders. Among other adaptations are their very large feet, which are placed so far back on the body that it is difficult for these birds to walk on land. The body feathers are small, numerous, and have a grebe-like sheen, and the wings are so short that takeoff and flight is attained with difficulty. All of the species have relatively short …


Ducks, Geese, And Swans Of The World: Sources Cited, Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Sources Cited, Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

350+ citations


Ducks, Geese, And Swans Of The World: Color Photographs, Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Color Photographs, Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

1. White-faced whistling duck, adult
2. Magpie goose, pair with male in foreground
3. Spotted whistling duck, female with brood
4. Plumed whistling duck, pair
5. Lesser whistling duck, pair
6. Black-bellied whistling duck, pair dabbling
7. African white-backed duck, adult male
8. Mute swan, male wing-flapping
9. Black swan, female and brood
10. Black-necked swan, pair carrying brood
11. Trumpeter swan, adult and cygnet
12. Whooper swan, pair and four juveniles
13. Bewick swan, adult and brood
14. Coscoroba swan, adult
15. Lesser white-fronted goose, pair
16. Eastern graylag goose, female and brood
17. Lesser snow goose, female and …


Ducks, Geese, And Swans Of The World: Glossary And Vernacular Name Derivations, Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Glossary And Vernacular Name Derivations, Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Approximate 250 terms: "Amphipoda" through "Xerophytic"


Ducks, Geese, And Swans Of The World: Index, Paul A. Johnsgard Jan 2010

Ducks, Geese, And Swans Of The World: Index, Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

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 particular 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 World’S Waterfowl In The 21st Century: A 2010 Supplement To Ducks, Geese, And Swans Of The World, Paul A. Johnsgard Jan 2010

The World’S Waterfowl In The 21st Century: A 2010 Supplement To Ducks, Geese, And Swans Of The World, Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Since the 1978 publication of my Ducks, Geese and Swans of the World hundreds if not thousands of publications on the Anatidae have appeared, making a comprehensive literature supplement and text updating impossible. Janet Kear’s (2005) survey of the waterfowl family Anatidae and closely related screamers of the family Anhimidae included more than 3,700 references, of which a significant proportion appeared later than 1978. My revision of the Anseriformes (families Anatidae and Anhimidae) for the 2nd edition of J. C. Peters’ Check-List of the Birds of the World (Johnsgard, 1979) closely followed the classification structure and taxonomic sequence that had …


How Birds Combat Ectoparasites, Dale H. Clayton, Jennifer A. H. Koop, Christopher W. Harbison, Brett R. Moyer, Sarah E. Bush Jan 2010

How Birds Combat Ectoparasites, Dale H. Clayton, Jennifer A. H. Koop, Christopher W. Harbison, Brett R. Moyer, Sarah E. Bush

Harold W. Manter Laboratory: Library Materials

Birds are plagued by an impressive diversity of ectoparasites, ranging from feather-feeding lice, to feather-degrading bacteria. Many of these ectoparasites have severe negative effects on host fitness. It is therefore not surprising that selection on birds has favored a variety of possible adaptations for dealing with ectoparasites. The functional significance of some of these defenses has been well documented. Others have barely been studied, much less tested rigorously. In this article we review the evidence--or lack thereof--for many of the purported mechanisms birds have for dealing with ectoparasites. We concentrate on features of the plumage and its components, as well …


Socially Induced Synchronization Of Every-Other-Day Egg Laying In A Seabird Colony, Shandelle M. Henson, James L. Hayward, J. M. Cushing, Joseph C. Galusha Jan 2010

Socially Induced Synchronization Of Every-Other-Day Egg Laying In A Seabird Colony, Shandelle M. Henson, James L. Hayward, J. M. Cushing, Joseph C. Galusha

Faculty Publications

Spontaneous oscillator synchrony has been documented in a wide variety of electrical, mechanical, chemical, and biological systems, including the menstrual cycles of women and estrous cycles of Norway Rats (Rattus norvegicus). In temperate regions, many colonial birds breed seasonally in a time window set by photoperiod; some studies have suggested that heightened social stimulation in denser colonies can lead to a tightened annual reproductive pulse. It has been unknown, however, whether the analog of menstrual synchrony occurs in birdsthat is, whether avian ovulation cycles can synchronize on a daily timescale within the annual breeding pulse. We report every-other-day clutch-initiation and …


Cracid News: Bulletin Of The Cracid Group Of The Iucn/Ssc-­‐Wpa Galliform Specialist Group 29-33, 35-36 (2010-2014), Iucn Ssc-Wpa Galliformes Specialist Group Jan 2010

Cracid News: Bulletin Of The Cracid Group Of The Iucn/Ssc-­‐Wpa Galliform Specialist Group 29-33, 35-36 (2010-2014), Iucn Ssc-Wpa Galliformes Specialist Group

Galliformes Specialist Group and Affiliated Societies: Newsletters

Volume 29 (Spring 2010)

In memoriam: Dr. Jesus Estudillo Lopez, Juan Cornejo

Ecology and behavior of the bare-faced curassow (Crax fasciolata) in the Brazilian Pantanal, Arnaud Léonard Jean Desbiez

Algunas características de la población y hábitat de Crax alberti en el Eco-Parque los Besotes, Valledupar–Cesar, Irina Margarita Mendoza Polo, Dewing Miguel Ochoa Ramos, Rafael Antonio Borja Acuña, y Tomas Gutiérrez Hinojosa

Volume 30 (Fall 2010)

Registros de cacería del paujil copete de piedra (Pauxi pauxi) en el extremo norte de la cordillera oriental de los Andes, Colombia, Víctor Setina Liz, Diego J. Lizcano, Milena Morales Sandoval, …


Wpa News 86 (2010/2011), World Pheasant Association Jan 2010

Wpa News 86 (2010/2011), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Winter 2010/2011), number 86

Published by the World Pheasant Association


Annual Review Of The World Pheasant Association, 2009/2010, World Pheasant Association Jan 2010

Annual Review Of The World Pheasant Association, 2009/2010, World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Chairman of Trustees' report.Tim Lovel

Treasurer's report for the year ended April 30, 2010, Ian Hoggarth

WPA around the world highlights from the chapters

Overview of the year's conservation activities, Philip J. K. McGowan

Making the Most of Resources

The IUCN-SSC/WPA Galliformes Specialist Group: A global network of technical excellence,Peter J. Garson and Ilse Storch

Highlights from the European Conservation Breeding Group, Heiner Jacken

Rejuvenating the United Kingdom Gaillformes census

Keeping count of Europe's Galliformes,Siro Serena

Developing conservation science leaders, Huw Lloyd

Planning to save our most threatened species, Philip J. K. McGowan

Just how important are Galliformes to humans? …