Survival of postfledging mallards in northcentral Minnesota
Article Abstract:
The mortality rates among postfledging mallards in northcentral Minnesota were investigated. Radiotelemetry was used to estimate survival rates of immature mallards from fledging to autumn migration. It was found that the death of some mallards were attributed to hunting and predation and that natural mortality of fledged young had an insignificant effect on recruitment to migration. The implications of the findings for wildlife management were discussed.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 1999
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Survival of adult female elk in Yellowstone following wolf restoration
Article Abstract:
The population of large mammals is affected by the rate at which prime-aged animals die and in this connection the decreasing counts of northern Yellowstone elk (Cervus elaphus) particularly since the reintroduction of wolves (Canis lupus) in 1995 is causing concern. A study of the annual survival of the northern Yellowstone elk from 2000 to 2004 found it to be relatively low and human hunting and wolves were deemed to be the cause.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 2006
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A seventy-year history of trends in Yellowstone's northern elk herd
Article Abstract:
The analysis of seventy-year data on Yellowstone elk in Wyoming, USA, revealed greater impact of hunters than wolves on them. Though wolves' killings are more than hunter killings, it had lesser effect on elk population since wolves concentrated on old females and calves for their kills.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 2007
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