Effect of Grazing by Greater Snow Geese on the Production of Graminoids at an Arctic Site (Bylot Island, NWT, Canada)

1995 ◽  
Vol 83 (4) ◽  
pp. 653 ◽  
Author(s):  
Gilles Gauthier ◽  
R. John Hughes ◽  
Austin Reed ◽  
Julien Beaulieu ◽  
Line Rochefort
Keyword(s):  
Snow Geese ◽  
Bylot Island

Greater Snow Geese on Bylot Island, Northwest Territories, 1983

1987 ◽  
Vol 51 (1) ◽  
pp. 128 ◽  
Author(s):  
Austin Reed ◽  
Pierre Chagnon
Keyword(s):  
Northwest Territories ◽  
Snow Geese ◽  
Bylot Island

The Numbers and Distribution of Greater Snow Geese on Bylot Island and near Jungersen Bay, Baffin Island, in 1988 And 1983

ARCTIC ◽  
1992 ◽  
Vol 45 (2) ◽  
Author(s):  
Austin Reed ◽  
Hugh Boyd ◽  
Pierre Chagnon ◽  
James Hawkings
Keyword(s):  
Baffin Island ◽  
Snow Geese ◽  
Bylot Island

Is there an Optimal Clutch Size in Snow Geese?

1987 ◽  
Vol 130 (6) ◽  
pp. 839-863 ◽  
Author(s):  
R. F. Rockwell ◽  
C. S. Findlay ◽  
F. Cooke
Keyword(s):  
Clutch Size ◽  
Snow Geese ◽  
Optimal Clutch Size

Temporal Changes in Habitat Selection and Nest Spacing in a Colony of Ross' and Lesser Snow Geese

The Auk ◽  
1983 ◽  
Vol 100 (2) ◽  
pp. 335-343 ◽  
Author(s):  
M. Robert McLandress
Keyword(s):  
Nearest Neighbor ◽  
Average Distance ◽  
Habitat Preferences ◽  
Nearest Neighbors ◽  
Nest Density ◽  
Snow Goose ◽  
Snow Geese ◽  
Lesser Snow Geese ◽  
Average Size ◽  
Island Habitats

Abstract I studied the nesting colony of Ross' Geese (Chen rossii) and Lesser Snow Geese (C. caerulescens caerulescens) at Karrak Lake in the central Arctic of Canada in the summer of 1976. Related studies indicated that this colony had grown from 18,000 birds in 1966-1968 to 54,500 birds in 1976. In 1976, geese nested on islands that were used in the late 1960's and on an island and mainland sites that were previously unoccupied. Average nest density in 1976 was three-fold greater than in the late 1960's. Consequently, the average distance to nearest neighbors of Ross' Geese in 1976 was half the average distance determined 10 yr earlier. The mean clutch size of Ross' Geese was greater in island habitats where nest densities were high than in less populated island or mainland habitats. The average size of Snow Goose clutches did not differ significantly among island habitats but was larger at island than at mainland sites. Large clutches were most likely attributable to older and/or earlier nesting females. Habitat preferences apparently differed between species. Small clutches presumably indicated that young geese nested in areas where nest densities were low. The establishment of mainland nesting at Karrak Lake probably began with young Snow Geese using peripheral areas of the colony. Young Ross' Geese nested in sparsely populated habitats on islands to a greater extent than did Snow Geese. Ross' Geese also nested on the mainland but in lower densities than Ross' Geese nesting in similar island habitats. Successful nests with the larger clutches had closer conspecific neighbors than did successful nests with smaller clutches. The species composition of nearest neighbors changed significantly with distance from Snow Goose nests but not Ross' Goose nests. Nesting success was not affected by the species of nearest neighbor, however. Because they have complementary antipredator adaptations, Ross' and Snow geese may benefit by nesting together.

scholarly journals Ecological and Physiological Factors Affecting Brood Patch Area and Prolactin Levels in Arctic-Nesting Geese

The Auk ◽  
2006 ◽  
Vol 123 (2) ◽  
pp. 405-418 ◽  
Author(s):  
Jón Einar Jónsson ◽  
Alan D. Afton ◽  
Ray T. Alisauskas ◽  
Cynthia K. Bluhm ◽  
Mohamed E. El Halawani
Keyword(s):  
Body Condition ◽  
The Body ◽  
Nest Size ◽  
Patch Area ◽  
Physiological Factors ◽  
Factors Affecting ◽  
Chen Caerulescens ◽  
Brood Patch ◽  
Snow Geese ◽  
Ross's Geese

AbstractWe investigated effects of ecological and physiological factors on brood patch area and prolactin levels in free-ranging Lesser Snow Geese (Chen caerulescens caerulescens; hereafter “Snow Geese”) and Ross's Geese (C. rossii). On the basis of the body-size hypothesis, we predicted that the relationships between prolactin levels, brood patch area, and body condition would be stronger in Ross's Geese than in the larger Snow Geese. We found that brood patch area was positively related to clutch volume and inversely related to prolactin levels in Ross's Geese, but not in Snow Geese. Nest size, nest habitat, and first egg date did not affect brood patch area in either species. Prolactin levels increased as incubation progressed in female Snow Geese, but this relationship was not significant in Ross's Geese. Prolactin levels and body condition (as indexed by size-adjusted body mass) were inversely related in Ross's Geese, but not in Snow Geese. Our findings are consistent with the prediction that relationships between prolactin levels, brood patch area, and body condition are relatively stronger in Ross's Geese, because they mobilize endogenous reserves at faster rates than Snow Geese.Factores Ecológicos y Fisiológicos que Afectan el Área del Parche de Incubación y los Niveles de Prolactina en Gansos Nidificantes del Ártico

Weights of Lesser Snow Geese Taken on Their Winter Range

1979 ◽  
Vol 43 (2) ◽  
pp. 531 ◽  
Author(s):  
Edward L. Flickinger ◽  
Eric G. Bolen
Keyword(s):  
Winter Range ◽  
Snow Geese ◽  
Lesser Snow Geese

First pairing in Snow Geese Anser caerulescens: at what age and at what time of year does it occur?

Ibis ◽  
2004 ◽  
Vol 147 (1) ◽  
pp. 57-66 ◽  
Author(s):  
BARBARA GANTER ◽  
W. SEAN BOYD ◽  
VASILY V. BARANYUK ◽  
FRED COOKE
Keyword(s):  
Snow Geese ◽  
Anser Caerulescens ◽  
Time Of Year

Prediction of reproductive success and failure in lesser snow geese based on early season climatic variables

1998 ◽  
Vol 4 (1) ◽  
pp. 3-16 ◽  
Author(s):  
W. R. Skinner ◽  
R. L. Jefferies ◽  
T. J. Carleton ◽  
R. F. Rockwell&dagger K. F. Abraham
Keyword(s):  
Reproductive Success ◽  
Climatic Variables ◽  
Early Season ◽  
Snow Geese ◽  
Lesser Snow Geese

Impact of migratory snow geese on nitrogen and phosphorus dynamics in a freshwater reservoir

2005 ◽  
Vol 50 (5) ◽  
pp. 882-890 ◽  
Author(s):  
MARK H. OLSON ◽  
MELISSA M. HAGE ◽  
MARK D. BINKLEY ◽  
JAMES R. BINDER
Keyword(s):  
Nitrogen And Phosphorus ◽  
Phosphorus Dynamics ◽  
Snow Geese ◽  
Freshwater Reservoir

ARE BODY CONDITION AND REPRODUCTIVE EFFORT OF LAYING GREATER SNOW GEESE AFFECTED BY THE SPRING HUNT?

The Condor ◽  
2002 ◽  
Vol 104 (1) ◽  
pp. 156 ◽  
Author(s):  
Julien Mainguy ◽  
Joël Bêty ◽  
Gilles Gauthier ◽  
Jean-François Giroux
Keyword(s):  
Body Condition ◽  
Reproductive Effort ◽  
Snow Geese
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