MORTALITY OF WHOOPING CRANE COLTS IN WOOD BUFFALO NATIONAL PARK, CANADA, 1997-99

Twenty-two whooping crane (Grus americana) pairs with 2 young were monitored in Wood Buffalo National Park (WBNP) over 3 years to determine causes of colt mortality. The family groups were monitored from the ground, air, and with the aid ofradioteiemetry. We attached transmitters to 18 colts: 5 (28%...

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Bibliographic Details
Main Authors: BERGESON, DOUGLAS G., JOHNS, BRIAN W., HOLROYD, GEOFFREY L
Format: Text
Language:unknown
Published: DigitalCommons@University of Nebraska - Lincoln 2001
Subjects:
Grus americana
mortality
predation
radiotelemetry
Wood Buffalo National Park
Animal Sciences
Behavior and Ethology
Biodiversity
Ornithology
Population Biology
Terrestrial and Aquatic Ecology
Canada
Wood Buffalo
Online Access:https://digitalcommons.unl.edu/nacwgproc/45
https://digitalcommons.unl.edu/context/nacwgproc/article/1047/viewcontent/Bergeson___Mortality.pdf
Description
Summary:Twenty-two whooping crane (Grus americana) pairs with 2 young were monitored in Wood Buffalo National Park (WBNP) over 3 years to determine causes of colt mortality. The family groups were monitored from the ground, air, and with the aid ofradioteiemetry. We attached transmitters to 18 colts: 5 (28%) fledged, 5 (28%) succumbed to cumulative effects (head trauma, stress, exposure and/or infection), 4 (22%) were lost to unknown causes (3 of these went missing after they had lost their transmitters), 2 (11%) were taken by foxes (Vulpes vulpes), 1 (5.5%) was lost to raven (Corvus corax) predation, and 1 (5.5%) died of pneumonia. Of the 22 pairs we monitored, 16 young fledged. Of these, 2 (13%) were the younger sibling.

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