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Elevation-Dependent Temperature Trends in the Rocky Mountain Front Range: Changes over a 56- and 20-Year Record
TLDR
Temperature trends from five long-term weather stations along a 2077-meter elevational transect in the Rocky Mountain Front Range of Colorado, USA are presented and it is shown that warming signals were strongest at mid-elevations over both temporal scales. Expand
Immunological cost of chemical defence and the evolution of herbivore diet breadth.
TLDR
Results indicate that larvae feeding on plants with high concentrations of toxins might be more poorly defended against parasitoids, while at the same time being better defended against predators, suggesting that predators and parasitoid can exert different selective pressures on the evolution of herbivore diet breadth. Expand
The Effects of Enriched Carbon Dioxide Atmospheres on Plant—Insect Herbivore Interactions
TLDR
The results indicate that interactions between plants and herbivorous insects will be modified under the predicted CO2 conditions of the 21st century. Expand
EFFECTS OF PLANT AGE, GENOTYPE, AND HERBIVORY ON PLANTAGO PERFORMANCE AND CHEMISTRY'
TLDR
In an experimental garden at Binghamton, New York, the effects of plant age, plant genotype, and herbivory by generalist or specialist caterpillars on Plantago lanceolata showed that herbvory had little effect on plant performance, and there was no difference by the specialist Junonia coenia Hibner (Nymphalidae), compared to the generalist Spilosoma congrua Wlk. Expand
Early stage of host range expansion by a specialist herbivore, Euphydryas phaeton (Nymphalidae)
TLDR
The shift of some populations of E. phaeton onto plantain is most likely a function of several ecological factors rather than genetic differentiation between populations using turtlehead and plantain. Expand
Genetic variation in defensive chemistry in Plantago lanceolata (Plantaginaceae) and its effect on the specialist herbivore Junonia coenia (Nymphalidae)
TLDR
Although specialist herbivores may respond to defensive chemicals as qualitative feeding stimulants, they do not necessarily have higher fitness on plant genotypes containing higher concentrations of these chemicals. Expand
VARIATION IN FOOD QUALITY AND TEMPERATURE CONSTRAIN FORAGING OF GREGARIOUS CATERPILLARS
TLDR
In the absence of predators, in which case larvae eat new leaves, bask, and remain aggregated, the larvae can grow twice as fast and attain more biomass per instar than solitary larvae eating mature leaves in the shade, which is often the case when they avoid predators. Expand
The Effect of Nutrients and Enriched CO2 Environments on Production of Carbon-Based Allelochemicals in Plantago: A Test of the Carbon/Nutrient Balance Hypothesis
TLDR
It is suggested that augmented substrate concentrations (i.e., excess carbohydrates) are a necessary but insufficient trigger for increased secondary metabolism; instead, hormonal and/or direct physical cues (such as light) may be essential to synthesize or activate the appropriate enzyme systems. Expand
Iridoid glycosides and host-plant specificity in larvae of the buckeye butterfly,Junonia coenia (Nymphalidae)
  • M. Bowers
  • Biology, Medicine
  • Journal of Chemical Ecology
  • 1 November 1984
Larvae of the buckeye,Junonia coenia (Nymphalidae) feed primarily on plants in four families: Scrophulariaceae, Plantaginaceae, Verbenaceae, and Acanthaceae. These plant families have in common theExpand
Effects of Herbivore Damage and Nutrient Level on Induction of Iridoid Glycosides in Plantago lanceolata
TLDR
Results provide additional support for the defensive role of the iridoid glycosides in Plantago lanceolata by demonstrating that phytochemical variation is not always an incidental effect of nutrient stress but can be a direct response to damage by herbivores. Expand
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