15 Result(s)
within
James C. Russell
Ecology
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Article
Open AccessA review of methods for detecting rats at low densities, with implications for surveillance
Invasive rats are the biggest threat to island biodiversity world-wide. Though the ecological impacts of rats on insular biota are well documented, introduced rats present a difficult problem for detection and...
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Article
Open AccessThe tails of two invasive species: genetic responses to acute and chronic bottlenecks
Genetic diversity can affect population viability and can be reduced by both acute and chronic mechanisms. Using the history of the establishment and management of two invasive rat species on Tetiaroa atoll, F...
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Open AccessSystematic prey preference by introduced mice exhausts the ecosystem on Antipodes Island
House mice (Mus musculus) are a widespread invasive species on islands. Where they are the sole introduced mammal they can have particularly strong negative impacts on recipient ecosystems. House mice impacts hav...
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Risks posed by rat reproduction and diet to eradications on tropical islands
Removing invasive rodents from islands has many ecological and social benefits. However, eradications fail more frequently on tropical than on temperate islands, and causes for these failures are not yet well ...
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Diagnosing and responding to causes of failure to eradicate invasive rodents
Eradicating invasive rodents from islands is a common and powerful tool for conserving and restoring island ecosystems and populations. However, a variety of practical and ecological factors make rodent eradic...
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Conserving New Zealand’s native fauna: a review of tools being developed for the Predator Free 2050 programme
The endemic fauna of New Zealand evolved in the absence of mammalian predators and the introduction of the latter has been devastating. There have been numerous avian extinctions and 80% of the extant native a...
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Rodent eradications as ecosystem experiments: a case study from the Mexican tropics
For effective and efficient pest management it is essential to understand the ecology of the target species and recipient ecosystems. The use of rodent eradication as a restoration tool is well established in ...
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Article
Five-year population dynamics of plateau pikas (Ochotona curzoniae) on the east of Tibetan Plateau
Small mammals mediate trajectories of vegetation change where both their density and the growing season are moderated by temperature and precipitation. On the Tibetan Plateau, the cold and arid climate particu...
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The more the merrier? Multi-species grazing of small herbivores mediates plant community impacts
Small herbivores play keystone functional roles in grassland ecosystems. Recognising the combined effects where herbivores co-exist is important for guiding grassland restoration and biodiversity conservation....
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Experimental island invasion of house mice
The ability of invasive species to recurrently establish populations from small numbers of founders, while threatened species struggle at the same low population sizes, is a paradox in conservation biology. Li...
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Spatio-temporal patterns of introduced mice and invertebrates on Antipodes Island
House mice (Mus musculus) are a widespread introduced species with major but often overlooked impacts on ecosystems, proportionally greater when they are the only introduced mammal present. Studies conducted on t...
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The island syndrome and population dynamics of introduced rats
The island syndrome predicts directional changes in the morphology and demography of insular vertebrates, due to changes in trophic complexity and migration rates caused by island size and isolation. However, ...
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Article
Low individual-level dietary plasticity in an island-invasive generalist forager
The ability of invasive mammals to adjust their diet in response to new or variable resources is often proposed to explain their invasion success on islands with differing environmental conditions, especially ...
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Open AccessSurvivors or reinvaders? Using genetic assignment to identify invasive pests following eradication
When new individuals from a pest species are detected following eradication, identifying whether the new individuals are survivors from the eradication attempt, or reinvaders from another population, is import...
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Article
Early colonisation population structure of a Norway rat island invasion
Colonists undergo non-equilibrium processes such as founder effects, inbreeding and changing population size which influence the mating system and demography of a population. Understanding these processes in c...
