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Physical Sciences and Mathematics Commons

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University of Nebraska - Lincoln

Series

2002

Conservation

Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

Aerosolized Essential Oils And Individual Natural Product Compounds As Brown Treesnake Repellents , Larry Clark, John Shivik Jun 2002

Aerosolized Essential Oils And Individual Natural Product Compounds As Brown Treesnake Repellents , Larry Clark, John Shivik

USDA Wildlife Services: Staff Publications

Chemical irritants useful as repellents for brown treesnakes (Boiga irregularis) were identified. Exposure to various compounds produced a range of intensities for locomotory behavior in snakes. Essential oils comprised of 10 g liter -1 solutions of cedarwood, cinnamon, sage, juniper berry, lavender and rosemary each were potent snake irritants. Brown treesnakes exposed to a 2-s burst of aerosol of these oils exhibited prolonged, violent undirected locomotory behavior. In contrast, exposure to a 10 g liter-1 concentration of ginger oil aerosol caused snakes to locomote, but in a deliberate, directed manner. We also tested specific compounds, all derivative …


Neotropical Frogs In Hawaii: Status And Management Options For An Unusual Introduced Pest, Earl W. Campbell Iii, Fred Kraus Feb 2002

Neotropical Frogs In Hawaii: Status And Management Options For An Unusual Introduced Pest, Earl W. Campbell Iii, Fred Kraus

USDA Wildlife Services: Staff Publications

Two species of Neotropical frog, Eleutherodactylus coqui and E. planiroshir, have been introduced into the state of Hawaii via the horticulture trade. Since 1997 frog colonies within the state have rapidly spread from accidental and intentional causes, and frog abundance within colonies has grown rapidly. Colonies of these frogs are currently known from 262+ locations on the island of Hawaii, 45+ on Maui, 35+ on Oahu, and 2+ on Kauai Although these frogs were originally restricted to horticulture sites, they are now found in residential areas, resorts and hotels, and public lands. Within their native range, they may reach …