Global climate change is mostly characterized by temperature increase and fluctuating precipitation events, which may affect the spring phenology and mortality rate of insects. However, the interaction effect of temperature and precipitation on species performance has rarely been examined. Here we studied the response of the gall-making Tephritid fly Urophora stylata (Diptera: Tephritidae) to a...

Strömgren, M. 2001. Soil-Surface CO2 Flux and Growth in a Boreal Norway Spruce Stand. Effects of soil warming and nutrition. Acta Universitatis Agriculturae Sueciae, Silvestria 220. Doctor's dissertation. ISSN 1401-6230, ISBN 91-576-6304-1. Global warming is predicted to affect the carbon balance of forests. A change in the carbon balance would give a positive or negative feedback to the greenh...

The threat of global warming has prompted numerous recent studies on the thermal tolerance of marine species. A widely used method to determine the upper thermal limit has been the Critical Thermal Maximum (CTMax), a dynamic method, meaning that temperature is increased gradually until a critical point is reached. This method presents several advantages over static methods, however, there is on...

The observed increase in the concentration of greenhouse gases (GHGs) since the preindustrial era has most likely committed the world to a warming of 2.4 degrees C (1.4 degrees C to 4.3 degrees C) above the preindustrial surface temperatures. The committed warming is inferred from the most recent Intergovernmental Panel on Climate Change (IPCC) estimates of the greenhouse forcing and climate se...

We investigated the capacity of patient warming devices to disrupt the ultra-clean airflow system. We compared the effects of two patient warming technologies, forced-air and conductive fabric, on operating theatre ventilation during simulated hip replacement and lumbar spinal procedures using a mannequin as a patient. Infection data were reviewed to determine whether joint infection rates were...

VANHOUTTE, PAUL M., AND ROBERT R. LORENZ. E$ect of temperature on reactivity of saphenous, mesenteric, and femoral veins of the dog. Am. J. Physiol. 218(6) : 1746-l 750. 1970.-The contraction of cutaneous veins of the dog caused by sympathetic nerve stimulation or by vasoactive drugs has been found previously to be potentiated by cooling and depressed by warming. To determine if this effect was...

VANHOUTTE, PAUL M., AND ROBERT R. LORENZ. E$ect of temperature on reactivity of saphenous, mesenteric, and femoral veins of the dog. Am. J. Physiol. 218(6) : 1746-l 750. 1970.-The contraction of cutaneous veins of the dog caused by sympathetic nerve stimulation or by vasoactive drugs has been found previously to be potentiated by cooling and depressed by warming. To determine if this effect was...

The flux of carbon dioxide (CO2) between terrestrial ecosystems and the atmosphere may ameliorate or exacerbate climate change, depending on the relative responses of ecosystem photosynthesis and respiration to warming temperatures, rising atmospheric CO2, and altered precipitation. The combined effect of these global change factors is especially uncertain because of their potential for interac...

Climate change effects on population dynamics of natural populations are well documented at higher latitudes, where relatively rapid warming illuminates cause-effect relationships, but not in the tropics and especially the marine tropics, where warming has been slow. Here we forecast the indirect effect of ocean warming on a top predator, Nazca boobies in the equatorial Galápagos Islands, where...

The surface energy balance (SEB) is essential for understanding the coupled cryosphere-atmosphere system in the Arctic. In this study, we investigate the spatiotemporal variability in SEB across tundra, snow and ice. During the snow-free period, the main energy sink for ice sites is surface melt. For tundra, energy is used for sensible and latent heat flux and soil heat flux leading to permafro...