Factors affecting survival of northern pintail ducklings in Alberta / Karla L. Guyn and Robert G. Clark.

By:

Guyn, Karla L

Contributor(s):

Clark, Robert G

Material type: Text

TextSeries: Condor. 101(2) 369-377 Publication details: 1999.Description: illustrations ; 28 cmLOC classification:

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Summary: We determined brood and duckling survival from 57 radio -marked Northern Pintail (Anas aeuta) females in southern Alberta during 1994-1996, and related duckling survival to maternal and environmental attributes. Annual brood survival estimates ranged from 72.2% to 88.2%. Brood survival declined with hatch date in all years. Duckling survival was highest in 1994 at 65.2%, but fell 1042.4% and 43.8% in 1995 and 1996, re spectj~ ely. Du~kling. mortality wa~ highest during the first 10 days post-hatch in all years. Duckling surVival did not vary With female age, or distance from nest to nearest wetland, but did decline throughout the breeding season. Duckling survival was higher for ducklings from larger broods in 1994, but the opposite trend was found in 1995 and 1996.

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Title notes ( 2 )

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Item type	Current library	Collection	Call number	Status	Date due	Barcode
Electronic Journal	IWWR Supported Research Stacks	Non-fiction	GUY (Browse shelf(Opens below))	Available		16781

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Previous	No cover image available	No cover image available	No cover image available	No cover image available	No cover image available
Previous	AND The North American approach to waterfowl management : synergy of hunting and habitat conservation /	DEV Impact of management treatments on waterfowl use of dense nesting cover in the Canadian parklands /	GLO Foraging time and dietary intake by breeding Ross's and lesser snow geese /	GUY Factors affecting survival of northern pintail ducklings in Alberta /	PAL Resource selection, survival, and departure of adult female mallards from the Lake St. Clair region during autumn and winter /

Includes bibliographical references (pages 376-377).

We determined brood and duckling survival from 57 radio -marked Northern
Pintail (Anas aeuta) females in southern Alberta during 1994-1996, and related duckling
survival to maternal and environmental attributes. Annual brood survival estimates ranged
from 72.2% to 88.2%. Brood survival declined with hatch date in all years. Duckling survival
was highest in 1994 at 65.2%, but fell 1042.4% and 43.8% in 1995 and 1996, re spectj~
ely. Du~kling. mortality wa~ highest during the first 10 days post-hatch in all years.
Duckling surVival did not vary With female age, or distance from nest to nearest wetland,
but did decline throughout the breeding season. Duckling survival was higher for ducklings
from larger broods in 1994, but the opposite trend was found in 1995 and 1996.

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