Long-Term Changes in Survival Rates of Lesser Snow Geese

Ecology ◽  
1992 ◽  
Vol 73 (4) ◽  
pp. 1346-1362 ◽  
Author(s):  
Charles M. Francis ◽  
Miriam H. Richards ◽  
Fred Cooke ◽  
Robert F. Rockwell
Keyword(s):  
Survival Rates ◽  
Snow Geese ◽  
Lesser Snow Geese ◽  
Long Term Changes

scholarly journals Long-term destruction of sub-arctic wetland vegetation by lesser snow geese

Ecoscience ◽  
1997 ◽  
Vol 4 (2) ◽  
pp. 179-182 ◽  
Author(s):  
Peter M. Kotanen ◽  
Robert L. Jefferies
Keyword(s):  
Wetland Vegetation ◽  
Snow Geese ◽  
Lesser Snow Geese

scholarly journals Changes in Survival Rates of Lesser Snow Geese with Age and Breeding Status

The Auk ◽  
1992 ◽  
Vol 109 (4) ◽  
pp. 731-747 ◽  
Author(s):  
Charles M. Francis ◽  
Miriam H. Richards ◽  
Fred Cooke ◽  
Robert F. Rockwell
Keyword(s):  
Survival Rates ◽  
Snow Geese ◽  
Lesser Snow Geese ◽  
Breeding Status

scholarly journals Long-term changes in over-winter survival rates explain the decline of reed buntings Emberiza schoeniclus in Britain

1999 ◽  
Vol 36 (5) ◽  
pp. 798-811 ◽  
Author(s):  
Will J. Peach ◽  
Gavin M. Siriwardena ◽  
Richard D. Gregory
Keyword(s):  
Survival Rates ◽  
Winter Survival ◽  
Long Term Changes ◽  
Emberiza Schoeniclus

Effects of parasitic infections on clutch size of lesser snow geese from a northern breeding colony

1994 ◽  
Vol 72 (3) ◽  
pp. 541-544 ◽  
Author(s):  
Michael Clinchy ◽  
Ian K. Barker
Keyword(s):  
Clutch Size ◽  
Parasite Load ◽  
Convincing Evidence ◽  
Parasitic Infections ◽  
Breeding Colony ◽  
Proximate Cause ◽  
Snow Geese ◽  
Lesser Snow Geese ◽  
Anser Caerulescens Caerulescens

A density-dependent decline in the average clutch size of lesser snow geese (Anser caerulescens caerulescens) occurred from 1973 to 1989 at the breeding colony on the shores of La Pérouse Bay, Manitoba. An increase in average parasite load was hypothesized to be one of the two most likely causes of this decline. We shot 28 incubating adult female lesser snow geese at the La Pérouse Bay colony and examined the carcasses for parasites to determine if there was any proximate association between parasitic infections and the size of the clutch a female laid. We found no convincing evidence that parasitic infections were the proximate cause of any reduction in clutch size. In the absence of evidence of any direct effect of parasites, we conclude that an increase in the average parasite load is probably not the cause of the long-term decline in clutch size at La Pérouse Bay. By default, we suggest that increased intraspecific competition for food at the staging areas on the migratory flyway is the most likely cause of the decline in clutch size.

Use of ring recoveries to monitor long-term changes in the survival rates of British and Irish CormorantsPhalacrocorax carbo

Bird Study ◽  
1999 ◽  
Vol 46 (sup1) ◽  
pp. S189-S197 ◽  
Author(s):  
Chris V. Wernham ◽  
Will J. Peach
Keyword(s):  
Survival Rates ◽  
Ring Recoveries ◽  
Long Term Changes

Long-term changes in sleep patterns in men on the South Polar Plateau

1970 ◽  
Vol 125 (4) ◽  
pp. 655-659 ◽  
Author(s):  
K. Natani
Keyword(s):  
The South ◽  
Sleep Patterns ◽  
Long Term Changes ◽  
South Polar

Long Term Changes in Wind and Wave Climate on the North Sea

1991 ◽  
Author(s):  
Frank M. J. Hoozemans
Keyword(s):  
North Sea ◽  
Wave Climate ◽  
The North ◽  
Long Term Changes ◽  
The North Sea
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