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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Effects of tall fescue endophyte infection and population density on growth and reproduction in prairie voles

Article Abstract:

It seems that E+ fescue may act as an effective ground cover to deter herbivorous rodents from nesting and tunneling in places where they may create problems. This research assessed the impact of E+ fescue on field populations of the prairie vole. It is important to note that the extensive planting of infected fescue may in the long term lead to substantial changes in the distribution and reproductive condition of voles and other primary consumers. Future strategies will have to consider the impact of endophytes on age-specific mortality rates and investigate movement and space use patterns to distinguish dispersal from mortality.

Author: Fortier, Gary M., Bard, Nancy, Jansen, Meg, Clay, Keith
Publisher: Wildlife Society
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 2000
Biological control, Rodents

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Reproduction in eastern screech-owls fed selenium

Article Abstract:

High concentration of selenium affects the reproduction of raptors. The raptors studied had lesser reproduction success, their eggs were smaller and the nestlings had shorter bone lengths. Selenium toxicosis was also detected, its manifestation shown in decreased growth, lesions and mortality. Areas found to have high selenium should be subjected to clean up as the chemical affects the birds that feed on food sources directly affected by the chemical. Wildlife managers should also be aware that selenium exposure is not limited to aquatic areas but also on dry land.

Author: Wiemeyer, Stanley N., hoffman, David J.
Publisher: Wildlife Society
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 1996
Physiological aspects, Environmental aspects, Animal nutrition, Selenium (Nutrient), Selenium in animal nutrition, Screech owls

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Density and reproduction of burrowing owls along an urban development gradient

Article Abstract:

Some factors that may restrict burrowing owl numbers at high levels of development can be improved by management actions. This research involved assessing population density and reproductive success of a Florida burrowing owl population in Lee County, FL, between 1987 and 1990. It appears that the probability of successfully protecting a nest rises with the size of the buffer zone, but even buffers as small as 10 mt can be effective. A formal, mandatory burrowing owl education scheme was found to be associated with a decrease in nest failures caused by harassment.

Author: Millsap, Brian A., Bear, Cindy
Publisher: Wildlife Society
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 2000
Protection and preservation, Burrowing owl

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