K. Oberhauser

Publications129
h-index34
Citations4,116
Highly Influential Citations320
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Impact of Bt corn pollen on monarch butterfly populations: A risk assessment
A collaborative research effort by scientists in several states and in Canada has produced information to develop a formal risk assessment of the impact of Bt corn on monarch butterfly (Danaus… Expand
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Bioenergy and Wildlife: Threats and Opportunities for Grassland Conservation
Demand for land to grow corn for ethanol increased in the United States by 4.9 million hectares between 2005 and 2008, with wide-ranging effects on wildlife, including habitat loss. Depending on how… Expand
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Restoring monarch butterfly habitat in the Midwestern US: ?all hands on deck?
The eastern migratory population of monarch butterflies (Danaus plexippus plexippus) has declined by >80% within the last two decades. One possible cause of this decline is the loss of ≥1.3 billion… Expand
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Temporal and spatial overlap between monarch larvae and corn pollen
To assess the likelihood that monarch larvae will be exposed to Bacillus thuringiensis (Bt) pollen, we studied milkweed and monarch densities in habitats which comprise much of the land available to… Expand
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Characteristics of professional development that effect change in secondary science teachers' classroom practices
We studied the outcome of a professional development opportunity that consisted of 2- week-long resident institutes for teams consisting of a secondary science teacher and two students. The science… Expand
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Associations between host migration and the prevalence of a protozoan parasite in natural populations of adult monarch butterflies
1. Monarch butterflies Danaus plexippus (L.) (Lepidoptera: Nymphalidae) are susceptible to infection by the obligate protozoan parasite Ophryocystis elektroscirrha (McLaughlin and Myers)… Expand
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Ecological Niches in Sequential Generations of Eastern North American Monarch Butterflies (Lepidoptera: Danaidae): The Ecology of Migration and Likely Climate Change Implications
Abstract Eastern North American monarch butterflies (Danaus plexippus L.) show a series of range shifts during their breeding season. Using ecological niche modeling, we studied the environmental… Expand
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Quasi-extinction risk and population targets for the Eastern, migratory population of monarch butterflies (Danaus plexippus)
The Eastern, migratory population of monarch butterflies (Danaus plexippus), an iconic North American insect, has declined by ~80% over the last decade. The monarch’s multi-generational migration… Expand
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Male monarch butterfly spermatophore mass and mating strategies
Abstract Male monarch butterflies, Danaus plexippus, produce a spermatophore which can represent approximately 10% of their body mass. Spermatophore mass increased with age in virgin males, and with… Expand
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Monarch butterfly population decline in North America: identifying the threatening processes
The monarch butterfly (Danaus plexippus) population in North America has sharply declined over the last two decades. Despite rising concern over the monarch butterfly's status, no comprehensive study… Expand
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