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Full-Text Articles in Physical Sciences and Mathematics
Impacts Of Introduced Species On An Island Ecosystem: Non-Native Reptiles And Amphibians In The Us Virgin Islands, Renata J. Platenberg
Impacts Of Introduced Species On An Island Ecosystem: Non-Native Reptiles And Amphibians In The Us Virgin Islands, Renata J. Platenberg
Managing Vertebrate Invasive Species
Island ecosystems are highly sensitive to the impacts of introduced species. Non-native invasive snakes, lizards, and amphibians can introduce diseases into native populations and have other deleterious effects through predation, competition, and habitat manipulation. The United States (US) Virgin Islands are situated on the Puerto Rican Shelf in the Caribbean Sea and have a long history of human impacts and species introductions. Two species, the green iguana (Iguana iguana) and the red-legged tortoise (Geochelone carbonaria) were historically introduced and have become naturalized with little apparent impact to the local ecosystem. Recent years, however, have seen the …
Eradicating House Mice From Islands: Successes, Failures And The Way Forward, James W. B. Mackay, James C. Russell, Elaine C. Murphy
Eradicating House Mice From Islands: Successes, Failures And The Way Forward, James W. B. Mackay, James C. Russell, Elaine C. Murphy
Managing Vertebrate Invasive Species
The house mouse (Mus musculus) has been spread throughout the world by the actions of humans. It causes severe impacts to native ecosystems, especially in areas where there are no native mammals. It is possible to eradicate mice from islands but they are harder to eradicate than rats. A review of reported eradication attempts found that 17 attempts on 45 islands worldwide failed; a failure rate of 38%. The effect of operational factors on eradication success was examined, but no significant model was formed. Brodifacoum is the most widely used toxicant and has a 49% success rate. Mouse …
Reducing Risk And Enhancing Efficiency In Non-Native Vertebrate Removal Efforts On Islands: A 25 Year Multi-Taxa Retrospective From Santa Cruz Island, California, Scott A. Morrison
Reducing Risk And Enhancing Efficiency In Non-Native Vertebrate Removal Efforts On Islands: A 25 Year Multi-Taxa Retrospective From Santa Cruz Island, California, Scott A. Morrison
Managing Vertebrate Invasive Species
Effective conservation of native biodiversity on islands often requires the eradication of destructive non-native vertebrates. There are risks in conducting an eradication project, however, including the risk that the effort will fail to remove all the individuals, and the risk that the removal of the species will trigger ecological cascades with unanticipated and undesired consequences. Managers must plan to reduce such risks, and also maximize the return on investment of the limited conservation resources available for restoration programs. I discuss four vertebrate removal projects implemented on Santa Cruz Island, CA, over the past 25 years: sheep, golden eagles, pigs, and …