The role of lesser snow geese as nitrogen processors in a sub-arctic salt marsh

Oecologia ◽  
1989 ◽  
Vol 79 (1) ◽  
pp. 23-29 ◽  
Author(s):  
R. W. Ruess ◽  
D. S. Hik ◽  
R. L. Jefferies
Keyword(s):  
Salt Marsh ◽  
Snow Geese ◽  
Lesser Snow Geese

Response of a subarctic salt marsh plant community to foraging by captive lesser snow geese

Ecoscience ◽  
2002 ◽  
Vol 9 (3) ◽  
pp. 320-331 ◽  
Author(s):  
Amy B. Zacheis ◽  
Jerry W. Hupp ◽  
Roger W. Ruess
Keyword(s):  
Salt Marsh ◽  
Plant Community ◽  
Marsh Plant ◽  
Salt Marsh Plant ◽  
Snow Geese ◽  
Lesser Snow Geese

Lesser Snow Geese and the Nitrogen Economy of a Grazed Salt Marsh

1989 ◽  
Vol 77 (1) ◽  
pp. 24 ◽  
Author(s):  
D. R. Bazely ◽  
R. L. Jefferies
Keyword(s):  
Salt Marsh ◽  
Nitrogen Economy ◽  
Snow Geese ◽  
Lesser Snow Geese

Deterring arctic fox predation: the role of parental nest attendance by lesser snow geese

2001 ◽  
Vol 79 (5) ◽  
pp. 861-866 ◽  
Author(s):  
Gustaf Samelius ◽  
Ray T Alisauskas
Keyword(s):  
Arctic Fox ◽  
Nest Attendance ◽  
Alopex Lagopus ◽  
Chen Caerulescens ◽  
Banks Island ◽  
Snow Geese ◽  
Lesser Snow Geese ◽  
Arctic Foxes ◽  
Chen Caerulescens Caerulescens

High parental attendance at nests can improve nesting performance in birds by shortening the nesting period and by deterring predators that do not force birds off of nests. We examined how parental nest attendance by lesser snow geese (Chen caerulescens caerulescens) affected (i) foraging behaviours of arctic foxes (Alopex lagopus) and (ii) egg loss by geese exposed to arctic foxes at a large goose colony on Banks Island, N.W.T., Canada. Unattended nests and nests attended by single females suffered much greater egg loss to foxes than nests attended by paired geese. This resulted from foxes attacking unattended nests and single females far more frequently than expected by chance and from geese associated with such nests offering little or no resistance to foxes. Paired geese, in contrast, were avoided by foxes and also showed greater resistance to foxes than single females and unattended nests. Nest attendance by male geese can therefore be important in reducing egg loss to arctic foxes, but it may play an even greater role in reducing egg loss to arctic foxes in small colonies or during colony formation, when the ratio of predators to nests is generally high.

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.

Cattail Invasion and Persistence in a Coastal Salt Marsh: The Role of Salinity Reduction

Estuaries ◽  
1987 ◽  
Vol 10 (2) ◽  
pp. 165 ◽  
Author(s):  
Pamela A. Beare ◽  
Joy B. Zedler
Keyword(s):  
Salt Marsh ◽  
Coastal Salt Marsh ◽  
Salinity Reduction

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

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
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